[petsc-dev] valgrind errors in the SUPERLU*

Xiaoye S. Li xsli at lbl.gov
Wed Jan 20 14:10:31 CST 2016


Yes, I have both Malloc and Calloc wrapping around the system malloc, so I
can selectively use either one depending on needs.

Thanks,
Sherry


On Mon, Jan 18, 2016 at 11:27 AM, Jeff Hammond <jeff.science at gmail.com>
wrote:

>
>
> On Monday, January 18, 2016, Hong <hzhang at mcs.anl.gov> wrote:
>
>> Sherry,
>> Replacing memory.c:108
>> buf = (void *) malloc(size);
>> to
>> buf = (void *) calloc(size,sizeof(size_t));
>>
>>
> This increases memory consumption by a factor of sizeof(size_t).
>
> malloc(n) should be changed to calloc(n,1).
>
> http://pubs.opengroup.org/onlinepubs/009695399/functions/calloc.html
>
> Jeff
>
>
>> valgrind becomes clean:
>> hzhang at es /scratch/hzhang/petsc/src/ksp/ksp/examples/tutorials (master)
>> $ mpiexec -n 2 valgrind ./ex2 -pc_type lu -pc_factor_mat_solver_package
>> superlu_dist
>> ==1361== Memcheck, a memory error detector
>> ==1361== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
>> ==1361== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
>> ==1361== Command: ./ex2 -pc_type lu -pc_factor_mat_solver_package
>> superlu_dist
>> ==1361==
>> ==1362== Memcheck, a memory error detector
>> ==1362== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
>> ==1362== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
>> ==1362== Command: ./ex2 -pc_type lu -pc_factor_mat_solver_package
>> superlu_dist
>> ==1362==
>> Norm of error 1.01754e-15 iterations 1
>> ==1361==
>> ==1361== HEAP SUMMARY:
>> ==1361==     in use at exit: 0 bytes in 0 blocks
>> ==1361==   total heap usage: 2,956 allocs, 2,515 frees, 26,737,446 bytes
>> allocated
>> ==1361==
>> ==1361== All heap blocks were freed -- no leaks are possible
>> ==1361==
>> ==1361== For counts of detected and suppressed errors, rerun with: -v
>> ==1361== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 2 from 2)
>> ==1362==
>> ==1362== HEAP SUMMARY:
>> ==1362==     in use at exit: 0 bytes in 0 blocks
>> ==1362==   total heap usage: 2,955 allocs, 2,444 frees, 27,160,867 bytes
>> allocated
>> ==1362==
>> ==1362== All heap blocks were freed -- no leaks are possible
>> ==1362==
>> ==1362== For counts of detected and suppressed errors, rerun with: -v
>> ==1362== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 2 from 2)
>>
>> Hong
>>
>>
>> On Sun, Jan 17, 2016 at 2:42 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>>
>>>
>>>   Sherry,
>>>
>>>    I may be misunderstanding the code but when I run a small case with
>>> two processes I get
>>>
>>> $ /sandbox/bsmith/petsc/bin/petscmpiexec -valgrind -n 2 ./ex2 -pc_type
>>> lu -pc_factor_mat_solver_package superlu_dist
>>> ==3101== Syscall param writev(vector[...]) points to uninitialised
>>> byte(s)
>>> ==3101==    at 0xA84DD4B: writev (writev.c:51)
>>> ==3101==    by 0xA1FB596: MPL_large_writev (mplsock.c:32)
>>> ==3101==    by 0xA1EADC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> ==3101==    by 0xA1A59CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> ==3101==    by 0xA175948: MPIDI_CH3_EagerContigIsend (ch3u_eager.c:556)
>>> ==3101==    by 0xA18A574: MPID_Isend (mpid_isend.c:138)
>>> ==3101==    by 0xA062ED8: PMPI_Isend (isend.c:125)
>>> ==3101==    by 0x6350C2A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> ==3101==    by 0x634B79F: pdgstrf (pdgstrf.c:981)
>>> ==3101==    by 0x63322D8: pdgssvx (pdgssvx.c:1109)
>>> ==3101==    by 0x580294C: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> ==3101==    by 0x58313C2: MatLUFactorNumeric (matrix.c:2946)
>>> ==3101==    by 0x5DA1A5E: PCSetUp_LU (lu.c:164)
>>> ==3101==    by 0x5C5D136: PCSetUp (precon.c:984)
>>> ==3101==    by 0x5E790D7: KSPSetUp (itfunc.c:390)
>>> ==3101==    by 0x5E7AD81: KSPSolve (itfunc.c:594)
>>> ==3101==    by 0x40290D: main (ex2.c:197)
>>> ==3101==  Address 0xc01e3c8 is 8 bytes inside a block of size 131,072
>>> alloc'd
>>> ==3101==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> ==3101==    by 0x636088D: superlu_malloc_dist (memory.c:108)
>>> ==3101==    by 0x6330236: doubleMalloc_dist (dmemory_dist.c:145)
>>> ==3101==    by 0x634ADFE: pdgstrf (pdgstrf.c:737)
>>> ==3101==    by 0x63322D8: pdgssvx (pdgssvx.c:1109)
>>> ==3101==    by 0x580294C: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> ==3101==    by 0x58313C2: MatLUFactorNumeric (matrix.c:2946)
>>> ==3101==    by 0x5DA1A5E: PCSetUp_LU (lu.c:164)
>>> ==3101==    by 0x5C5D136: PCSetUp (precon.c:984)
>>> ==3101==    by 0x5E790D7: KSPSetUp (itfunc.c:390)
>>> ==3101==    by 0x5E7AD81: KSPSolve (itfunc.c:594)
>>> ==3101==    by 0x40290D: main (ex2.c:197)
>>> ==3101==  Uninitialised value was created by a heap allocation
>>> ==3101==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> ==3101==    by 0x636088D: superlu_malloc_dist (memory.c:108)
>>> ==3101==    by 0x6330236: doubleMalloc_dist (dmemory_dist.c:145)
>>> ==3101==    by 0x634ADFE: pdgstrf (pdgstrf.c:737)
>>> ==3101==    by 0x63322D8: pdgssvx (pdgssvx.c:1109)
>>> ==3101==    by 0x580294C: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> ==3101==    by 0x58313C2: MatLUFactorNumeric (matrix.c:2946)
>>> ==3101==    by 0x5DA1A5E: PCSetUp_LU (lu.c:164)
>>> ==3101==    by 0x5C5D136: PCSetUp (precon.c:984)
>>> ==3101==    by 0x5E790D7: KSPSetUp (itfunc.c:390)
>>> ==3101==    by 0x5E7AD81: KSPSolve (itfunc.c:594)
>>> ==3101==    by 0x40290D: main (ex2.c:197)
>>> ==3101==
>>> ==3102== Syscall param writev(vector[...]) points to uninitialised
>>> byte(s)
>>> ==3102==    at 0xA84DD4B: writev (writev.c:51)
>>> ==3102==    by 0xA1FB596: MPL_large_writev (mplsock.c:32)
>>> ==3102==    by 0xA1EADC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> ==3102==    by 0xA1A59CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> ==3102==    by 0xA175948: MPIDI_CH3_EagerContigIsend (ch3u_eager.c:556)
>>> ==3102==    by 0xA18A574: MPID_Isend (mpid_isend.c:138)
>>> ==3102==    by 0xA062ED8: PMPI_Isend (isend.c:125)
>>> ==3102==    by 0x6350C2A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> ==3102==    by 0x634BD97: pdgstrf (pdgstrf.c:1084)
>>> ==3102==    by 0x63322D8: pdgssvx (pdgssvx.c:1109)
>>> ==3102==    by 0x580294C: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> ==3102==    by 0x58313C2: MatLUFactorNumeric (matrix.c:2946)
>>> ==3102==    by 0x5DA1A5E: PCSetUp_LU (lu.c:164)
>>> ==3102==    by 0x5C5D136: PCSetUp (precon.c:984)
>>> ==3102==    by 0x5E790D7: KSPSetUp (itfunc.c:390)
>>> ==3102==    by 0x5E7AD81: KSPSolve (itfunc.c:594)
>>> ==3102==    by 0x40290D: main (ex2.c:197)
>>> ==3102==  Address 0xc020428 is 648 bytes inside a block of size 131,072
>>> alloc'd
>>> ==3102==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> ==3102==    by 0x636088D: superlu_malloc_dist (memory.c:108)
>>> ==3102==    by 0x6330236: doubleMalloc_dist (dmemory_dist.c:145)
>>> ==3102==    by 0x634ADFE: pdgstrf (pdgstrf.c:737)
>>> ==3102==    by 0x63322D8: pdgssvx (pdgssvx.c:1109)
>>> ==3102==    by 0x580294C: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> ==3102==    by 0x58313C2: MatLUFactorNumeric (matrix.c:2946)
>>> ==3102==    by 0x5DA1A5E: PCSetUp_LU (lu.c:164)
>>> ==3102==    by 0x5C5D136: PCSetUp (precon.c:984)
>>> ==3102==    by 0x5E790D7: KSPSetUp (itfunc.c:390)
>>> ==3102==    by 0x5E7AD81: KSPSolve (itfunc.c:594)
>>> ==3102==    by 0x40290D: main (ex2.c:197)
>>> ==3102==  Uninitialised value was created by a heap allocation
>>> ==3102==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> ==3102==    by 0x636088D: superlu_malloc_dist (memory.c:108)
>>> ==3102==    by 0x6330236: doubleMalloc_dist (dmemory_dist.c:145)
>>> ==3102==    by 0x634ADFE: pdgstrf (pdgstrf.c:737)
>>> ==3102==    by 0x63322D8: pdgssvx (pdgssvx.c:1109)
>>> ==3102==    by 0x580294C: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> ==3102==    by 0x58313C2: MatLUFactorNumeric (matrix.c:2946)
>>> ==3102==    by 0x5DA1A5E: PCSetUp_LU (lu.c:164)
>>> ==3102==    by 0x5C5D136: PCSetUp (precon.c:984)
>>> ==3102==    by 0x5E790D7: KSPSetUp (itfunc.c:390)
>>> ==3102==    by 0x5E7AD81: KSPSolve (itfunc.c:594)
>>> ==3102==    by 0x40290D: main (ex2.c:197)
>>> ==3102==
>>> Norm of error 1.01754e-15 iterations 1
>>>
>>>   Looking at pdgstrf2_trsm() it appears that you are sending square
>>> matrices of dimension MPI_Isend (ublk_ptr, nsupc * nsupc, MPI_DOUBLE, pr)
>>> of dimension nsupc * nsupc but then using the received matrix as a 'u'
>>> (upper diagonal matrix)? This means that some of the entries in the matrix
>>> are never used and hence never set (the below diagonal ones)?
>>>
>>>   In order to prevent MPI ever seeing those uninitialized values it
>>> seems you should use calloc at pdgstrf (pdgstrf.c:737) ?
>>>
>>>   Thanks for looking at this.
>>>
>>>    Barry
>>>
>>> > On Jan 17, 2016, at 11:16 AM, Xiaoye S. Li <xsli at lbl.gov> wrote:
>>> >
>>> > Barry,
>>> > I checked those (two) places that involve MPI_Isend with uninitialized
>>> memory.  In both cases, I malloc largest possible buffer needed across
>>> different steps of the algorithm. Then, at each step, only part of the
>>> buffer is used for send (with correct data initialized).  The size argument
>>> in MPI_Isend()  tells how much data should be sent at this step.  That is,
>>> I never send uninitialized memory.   I am surprised valgrind complains this.
>>> >
>>> > I can use "calloc" for theses two buffers, if that helps.
>>> >
>>> > Also, if this is not urgent, I will include this fix in the upcoming
>>> xSDK 1.0 release.   I am trying to get CMake in superlu_dist; it's done
>>> only for serial superlu.
>>> >
>>> >
>>> > Sherry
>>> >
>>> >
>>> > On Sat, Jan 16, 2016 at 7:36 PM, Barry Smith <bsmith at mcs.anl.gov>
>>> wrote:
>>> >
>>> >   Sherry,
>>> >
>>> >    I think the memory leak is our mistake. Thanks for checking the
>>> uninitialized copies
>>> >
>>> >   Barry
>>> >
>>> > > On Jan 16, 2016, at 2:04 PM, Xiaoye S. Li <xsli at lbl.gov> wrote:
>>> > >
>>> > > The first leak is related to data structure for distributed sparse
>>> CSR matrix A (input).  How does the petsc interface free A's structure at
>>> the end of program?   There needs be a matching call like this:
>>> > >
>>> > >     Destroy_CompRowLoc_Matrix_dist(&A);
>>> > >
>>> > > when A is not needed anymore.
>>> > >
>>> > > I will go check all the MPI buffers.
>>> > >
>>> > > By the way, I have a question about valgrind.   Lately I have been
>>> chasing a possible memory corruption on  Cori at NERSC.  Valgrind gave LOTS
>>> OF internal system-related warnings, such as:
>>> > >
>>> > > ==39059== Conditional jump or move depends on uninitialised value(s)
>>> > > ==39059==    at 0xD5E336: __register_atfork (register-atfork.c:119)
>>> > > ==39059==    by 0xD5E418: __libc_pthread_init
>>> (libc_pthread_init.c:48)
>>> > > ==39059==    by 0x6629E1: __pthread_initialize_minimal
>>> (nptl-init.c:462)
>>> > > ==39059==    by 0xD14BDA: (below main) (libc-start.c:152)
>>> > > ==39059==
>>> > > ==39057==    by 0xD5E418: __libc_pthread_init
>>> (libc_pthread_init.c:48)
>>> > > ==39057==    by 0x6629E1: __pthread_initialize_minimal
>>> (nptl-init.c:462)
>>> > > ==39057==    by 0xD14BDA: (below main) (libc-start.c:152)
>>> > >
>>> > > ​This has nothing do do with my program.  Do you know a way to NOT
>>> to print those?   I got a huge file filled with these, hard to find out the
>>> real error.
>>> > >
>>> > >
>>> > > Sherry
>>> > > ​
>>> > >
>>> > >
>>> > > 2016-01-16 10:40 GMT-08:00 Barry Smith <bsmith at mcs.anl.gov>:
>>> > >
>>> > > Sherry,
>>> > >
>>> > >   We think there is a small memory leak in Superlu; could you check
>>> it?
>>> > >
>>> > > > ==11431== 40 bytes in 1 blocks are definitely lost in loss record
>>> 1 of 1
>>> > > > ==11431==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==11431==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==11431==    by 0x67834CA: dCreate_CompRowLoc_Matrix_dist
>>> (dutil_dist.c:61)
>>> > > > ==11431==    by 0x58C280D: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:405)
>>> > > > ==11431==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==11431==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==11431==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==11431==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==11431==    by 0x6025919: KSPSolve (itfunc.c:594)
>>> > > > ==11431==    by 0x61E538F: SNESSolve_NEWTONLS (ls.c:230)
>>> > > > ==11431==    by 0x6255E9C: SNESSolve (snes.c:3992)
>>> > > > ==11431==    by 0x40271F: main (ex19.c:160)
>>> > > > ==11431==
>>> > > > ==11430== 40 bytes in 1 blocks are definitely lost in loss record
>>> 1 of 1
>>> > > > ==11430==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==11430==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==11430==    by 0x67834CA: dCreate_CompRowLoc_Matrix_dist
>>> (dutil_dist.c:61)
>>> > > > ==11430==    by 0x58C280D: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:405)
>>> > > > ==11430==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==11430==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==11430==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==11430==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==11430==    by 0x6025919: KSPSolve (itfunc.c:594)
>>> > > > ==11430==    by 0x61E538F: SNESSolve_NEWTONLS (ls.c:230)
>>> > > > ==11430==    by 0x6255E9C: SNESSolve (snes.c:3992)
>>> > > > ==11430==    by 0x40271F: main (ex19.c:160)
>>> > > > ==11430==
>>> > >
>>> > > Another problem is that when running PETSc examples with Superlu we
>>> see valgrind warning messages about copying uninitialized data in MPI calls
>>> in superlu. This is cause by hypre allocating some buffer space, but only
>>> putting values in part of the buffer and then sending the entire buffer via
>>> MPI to some other process. Technically this is not an "error" if you never
>>> access the non initialized data on the receiver process but it makes
>>> valgrind unusable for finding TRUE memory issues (since the output is
>>> filled with false positives).
>>> > >
>>> > >    The issue could be fixed by either 1) initializing the complete
>>> buffer allocated (for example when it is malloced), then MPI won't see
>>> uninitialized data or better IMHO 2) send shorter messages that don't
>>> contain this part of the buffer that is never used anyway.
>>> > >
>>> > > Thanks
>>> > >
>>> > >   Barry
>>> > > ******* Testing: testexamples_SUPERLU_DIST_DATAFILESPATH *******
>>> > > 0a1,89
>>> > > > ==29986== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==29986==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==29986==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==29986==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==29986==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==29986==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==29986==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==29986==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==29986==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==29986==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==29986==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==29986==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==29986==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==29986==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==29986==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==29986==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==29986==    by 0x405E42: main (ex10.c:316)
>>> > > > ==29986==  Address 0xf4d8318 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==29986==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==29986==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==29986==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==29986==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==29986==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==29986==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==29986==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==29986==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==29986==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==29986==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==29986==    by 0x405E42: main (ex10.c:316)
>>> > > > ==29986==  Uninitialised value was created by a heap allocation
>>> > > > ==29986==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==29986==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==29986==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==29986==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==29986==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==29986==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==29986==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==29986==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==29986==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==29986==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==29986==    by 0x405E42: main (ex10.c:316)
>>> > > > ==29986==
>>> > > > ==29987== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==29987==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==29987==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==29987==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==29987==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==29987==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==29987==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==29987==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==29987==    by 0x67A8198: pdgstrs (pdgstrs.c:717)
>>> > > > ==29987==    by 0x6787E75: pdgssvx (pdgssvx.c:1260)
>>> > > > ==29987==    by 0x58BE3A4: MatSolve_SuperLU_DIST
>>> (superlu_dist.c:170)
>>> > > > ==29987==    by 0x591E6DB: MatSolve (matrix.c:3178)
>>> > > > ==29987==    by 0x5E58FA5: PCApply_LU (lu.c:213)
>>> > > > ==29987==    by 0x5DA1EC1: PCApply (precon.c:484)
>>> > > > ==29987==    by 0x6131991: KSP_PCApply (kspimpl.h:244)
>>> > > > ==29987==    by 0x613225F: KSPSolve_PREONLY (preonly.c:27)
>>> > > > ==29987==    by 0x6026542: KSPSolve (itfunc.c:651)
>>> > > > ==29987==    by 0x406122: main (ex10.c:336)
>>> > > > ==29987==  Address 0xfb20f38 is 8 bytes inside a block of size 152
>>> alloc'd
>>> > > > ==29987==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==29987==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==29987==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==29987==    by 0x67A7A0F: pdgstrs (pdgstrs.c:580)
>>> > > > ==29987==    by 0x6787E75: pdgssvx (pdgssvx.c:1260)
>>> > > > ==29987==    by 0x58BE3A4: MatSolve_SuperLU_DIST
>>> (superlu_dist.c:170)
>>> > > > ==29987==    by 0x591E6DB: MatSolve (matrix.c:3178)
>>> > > > ==29987==    by 0x5E58FA5: PCApply_LU (lu.c:213)
>>> > > > ==29987==    by 0x5DA1EC1: PCApply (precon.c:484)
>>> > > > ==29987==    by 0x6131991: KSP_PCApply (kspimpl.h:244)
>>> > > > ==29987==    by 0x613225F: KSPSolve_PREONLY (preonly.c:27)
>>> > > > ==29987==    by 0x6026542: KSPSolve (itfunc.c:651)
>>> > > > ==29987==    by 0x406122: main (ex10.c:336)
>>> > > > ==29987==  Uninitialised value was created by a heap allocation
>>> > > > ==29987==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==29987==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==29987==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==29987==    by 0x67A7A0F: pdgstrs (pdgstrs.c:580)
>>> > > > ==29987==    by 0x6787E75: pdgssvx (pdgssvx.c:1260)
>>> > > > ==29987==    by 0x58BE3A4: MatSolve_SuperLU_DIST
>>> (superlu_dist.c:170)
>>> > > > ==29987==    by 0x591E6DB: MatSolve (matrix.c:3178)
>>> > > > ==29987==    by 0x5E58FA5: PCApply_LU (lu.c:213)
>>> > > > ==29987==    by 0x5DA1EC1: PCApply (precon.c:484)
>>> > > > ==29987==    by 0x6131991: KSP_PCApply (kspimpl.h:244)
>>> > > > ==29987==    by 0x613225F: KSPSolve_PREONLY (preonly.c:27)
>>> > > > ==29987==    by 0x6026542: KSPSolve (itfunc.c:651)
>>> > > > ==29987==    by 0x406122: main (ex10.c:336)
>>> > > > ==29987==
>>> > > /sandbox/petsc/petsc.clone/src/ksp/ksp/examples/tutorials
>>> > > Possible problem with ex10_superlu_lu_2, diffs above
>>> > > =========================================
>>> > > 4a5,106
>>> > > > ==30097== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30097==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30097==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30097==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30097==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30097==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30097==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30097==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30097==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30097==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30097==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30097==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30097==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30097==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30097==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30097==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30097==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30097==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30097==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30097==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30097==  Address 0xf625088 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30097==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30097==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30097==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30097==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30097==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30097==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30097==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30097==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30097==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30097==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30097==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30097==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30097==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30097==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30097==  Uninitialised value was created by a heap allocation
>>> > > > ==30097==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30097==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30097==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30097==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30097==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30097==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30097==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30097==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30097==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30097==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30097==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30097==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30097==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30097==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30097==
>>> > > > ==30098== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30098==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30098==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30098==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30098==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30098==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30098==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30098==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30098==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30098==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30098==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30098==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30098==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30098==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30098==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30098==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30098==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30098==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30098==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30098==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30098==  Address 0xf619a88 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30098==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30098==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30098==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30098==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30098==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30098==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30098==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30098==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30098==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30098==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30098==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30098==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30098==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30098==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30098==  Uninitialised value was created by a heap allocation
>>> > > > ==30098==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30098==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30098==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30098==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30098==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30098==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30098==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30098==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30098==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30098==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30098==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30098==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30098==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30098==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30098==
>>> > > 8a111,314
>>> > > > ==30150== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30150==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30150==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30150==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30150==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30150==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30150==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30150==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30150==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30150==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30150==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30150==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30150==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30150==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30150==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30150==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30150==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30150==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30150==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30150==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30150==  Address 0xf623888 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30150==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30150==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30150==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30150==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30150==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30150==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30150==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30150==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30150==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30152== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30150==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30152==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30152==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30152==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30152==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30152==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30152==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30150==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30150==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30150==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30150==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30150==  Uninitialised value was created by a heap allocation
>>> > > > ==30150==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30150==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30150==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30150==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30150==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30150==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30150==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30150==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30150==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30150==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30150==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30150==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30152==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30150==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30150==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30150==
>>> > > > ==30152==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30152==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30152==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30152==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30152==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30152==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30152==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30152==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30152==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30152==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30152==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30152==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30152==  Address 0xf61cff8 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30152==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30152==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30152==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30152==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30152==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30152==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30152==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30152==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30152==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30152==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30152==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30152==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30152==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30152==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30152==  Uninitialised value was created by a heap allocation
>>> > > > ==30152==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30152==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30152==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30152==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30152==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30152==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30152==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30152==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30152==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30152==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30152==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30152==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30152==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30152==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30152==
>>> > > > ==30151== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30151==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30151==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30151==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30151==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30151==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30151==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30151==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30151==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30151==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30151==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30151==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30151==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30151==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30151==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30151==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30151==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30151==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30151==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30151==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30151==  Address 0xf6183c8 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30151==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30151==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30151==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30151==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30151==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30151==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30151==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30151==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30151==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30151==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30151==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30151==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30151==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30151==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30151==  Uninitialised value was created by a heap allocation
>>> > > > ==30151==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30151==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30151==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30151==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30151==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30151==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30151==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30151==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30151==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30151==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30151==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30151==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30151==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30151==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30151==
>>> > > > ==30153== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30153==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30153==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30153==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30153==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30153==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30153==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30153==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30153==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30153==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30153==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30153==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30153==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30153==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30153==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30153==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30153==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30153==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30153==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30153==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30153==  Address 0xf617728 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30153==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30153==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30153==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30153==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30153==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30153==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30153==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30153==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30153==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30153==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30153==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30153==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30153==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30153==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30153==  Uninitialised value was created by a heap allocation
>>> > > > ==30153==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30153==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30153==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30153==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30153==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30153==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30153==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30153==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30153==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30153==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30153==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30153==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30153==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30153==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30153==
>>> > > 12a319,624
>>> > > > ==30207== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30207==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30207==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30207==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30207==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30207==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30207==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30207==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30207==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30207==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30207==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30207==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30207==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30207==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30207==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30207==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30207==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30207==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30207==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30207==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30207==  Address 0xf6202b8 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30207==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30207==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30207==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30207==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30207==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30207==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30207==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30207==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30207==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30207==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30207==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30207==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30207==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30207==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30207==  Uninitialised value was created by a heap allocation
>>> > > > ==30207==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30207==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30207==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30207==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30207==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30207==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30207==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30207==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30207==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30207==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30207==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30207==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30207==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30207==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30207==
>>> > > > ==30205== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30205==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30205==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30205==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30205==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30205==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30205==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30205==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30205==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30205==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30205==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30205==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30205==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30205==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30205==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30205==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30205==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30205==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30205==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30205==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30205==  Address 0xf61b928 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30205==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30205==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30205==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30205==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30205==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30205==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30205==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30205==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30205==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30205==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30205==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30205==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30205==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30205==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30205==  Uninitialised value was created by a heap allocation
>>> > > > ==30205==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30205==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30205==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30205==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30205==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30205==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30205==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30205==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30205==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30205==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30205==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30205==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30205==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30205==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30205==
>>> > > > ==30208== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30208==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30208==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30208==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30208==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30208==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30208==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30208==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30208==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30208==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30208==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30208==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30208==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30208==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30208==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30208==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30208==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30208==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30208==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30208==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30208==  Address 0xf6142f8 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30208==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30208==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30208==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30208==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30208==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30208==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30208==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30208==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30208==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30208==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30208==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30208==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30208==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30208==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30208==  Uninitialised value was created by a heap allocation
>>> > > > ==30208==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30208==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30208==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30208==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30208==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30208==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30208==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30208==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30208==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30208==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30208==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30208==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30208==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30208==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30208==
>>> > > > ==30206== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30206==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30206==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30206==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30206==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30206==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30206==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30206==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30206==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30206==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30206==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30206==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30206==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30206==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30206==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30206==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30206==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30206==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30206==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30206==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30206==  Address 0xf6164f8 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30206==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30206==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30206==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30206==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30206==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30206==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30206==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30206==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30206==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30206==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30206==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30206==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30206==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30206==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30206==  Uninitialised value was created by a heap allocation
>>> > > > ==30206==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30206==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30206==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30206==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30206==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30206==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30206==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30206==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30206==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30206==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30206==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30206==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30206==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30206==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30206==
>>> > > > ==30203== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30203==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30203==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30203==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30203==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30203==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30203==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30203==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30203==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30203==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30203==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30203==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30203==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30203==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30203==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30203==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30203==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30203==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30203==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30203==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30203==  Address 0xf6229c8 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30203==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30203==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30203==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30203==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30203==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30203==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30203==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30203==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30203==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30203==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30203==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30203==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30203==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30203==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30203==  Uninitialised value was created by a heap allocation
>>> > > > ==30203==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30203==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30203==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30203==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30203==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30203==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30203==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30203==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30203==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30203==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30203==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30203==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30203==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30203==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30203==
>>> > > > ==30204== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30204==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30204==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30204==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30204==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30204==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30204==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30204==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30204==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30204==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30204==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30204==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30204==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30204==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30204==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30204==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30204==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30204==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30204==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30204==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30204==  Address 0xf617008 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30204==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30204==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30204==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30204==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30204==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30204==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30204==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30204==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30204==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30204==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30204==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30204==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30204==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30204==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30204==  Uninitialised value was created by a heap allocation
>>> > > > ==30204==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30204==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30204==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30204==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30204==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30204==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30204==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30204==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30204==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30204==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30204==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30204==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30204==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30204==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30204==
>>> > > 16a629,1036
>>> > > > ==30262== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30262==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30262==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30262==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30262==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30262==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30262==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30262==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30262==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30262==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30262==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30262==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30262==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30262==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30262==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30262==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30262==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30262==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30262==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30262==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30262==  Address 0xf61c2b8 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30262==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30262==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30262==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30262==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30262==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30262==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30262==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30262==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30262==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30262==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30262==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30262==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30262==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30262==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30262==  Uninitialised value was created by a heap allocation
>>> > > > ==30262==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30262==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30262==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30262==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30262==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30262==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30262==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30262==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30262==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30262==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30262==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30262==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30262==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30262==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30262==
>>> > > > ==30260== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30260==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30260==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30260==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30260==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30260==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30260==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30260==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30260==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30260==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30260==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30260==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30260==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30260==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30260==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30260==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30260==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30260==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30260==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30260==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30260==  Address 0xf61ed28 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30260==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30260==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30260==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30260==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30260==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30260==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30260==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30260==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30260==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30260==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30260==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30260==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30260==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30260==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30260==  Uninitialised value was created by a heap allocation
>>> > > > ==30260==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30260==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30260==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30260==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30260==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30260==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30260==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30260==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30260==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30260==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30260==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30260==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30260==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30260==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30260==
>>> > > > ==30258== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30258==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30258==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30258==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30258==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30258==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30258==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30258==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30258==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30258==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30258==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30258==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30258==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30258==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30258==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30258==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30258==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30258==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30258==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30258==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30258==  Address 0xf61a368 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30258==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30258==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30258==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30258==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30258==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30258==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30258==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30258==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30258==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30258==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30258==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30258==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30258==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30258==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30258==  Uninitialised value was created by a heap allocation
>>> > > > ==30258==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30258==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30258==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30258==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30258==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30258==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30258==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30258==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30258==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30258==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30258==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30258==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30258==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30258==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30258==
>>> > > > ==30256== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30256==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30256==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30256==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30256==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30256==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30256==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30256==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30256==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30256==    by 0x67A0BCF: pdgstrf (pdgstrf.c:981)
>>> > > > ==30256==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30256==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30256==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30256==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30256==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30256==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30256==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30256==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30256==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30256==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30256==  Address 0xf621318 is 8 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30256==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30256==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30256==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30256==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30256==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30256==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30256==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30256==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30256==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30256==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30256==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30256==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30256==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30256==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30256==  Uninitialised value was created by a heap allocation
>>> > > > ==30256==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30256==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30256==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30256==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30256==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30256==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30256==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30256==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30256==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30256==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30256==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30256==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30256==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30256==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30256==
>>> > > > ==30263== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30263==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30263==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30263==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30263==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30263==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30263==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30263==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30263==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30263==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30263==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30263==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30263==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30263==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30263==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30263==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30263==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30263==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30263==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30263==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30263==  Address 0xf612b98 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30263==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30263==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30263==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30263==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30263==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30263==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30263==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30263==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30263==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30263==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30263==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30263==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30263==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30263==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30263==  Uninitialised value was created by a heap allocation
>>> > > > ==30263==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30263==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30263==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30263==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30263==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30263==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30263==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30263==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30263==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30263==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30263==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30263==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30263==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30263==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30263==
>>> > > > ==30261== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30261==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30261==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30261==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30261==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30261==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30261==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30261==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30261==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30261==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30261==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30261==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30261==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30261==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30261==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30261==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30261==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30261==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30261==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30261==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30261==  Address 0xf612f58 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30261==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30261==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30261==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30261==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30261==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30261==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30261==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30261==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30261==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30261==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30261==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30261==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30261==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30261==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30261==  Uninitialised value was created by a heap allocation
>>> > > > ==30261==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30261==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30261==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30261==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30261==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30261==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30261==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30261==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30261==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30261==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30261==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30261==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30261==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30261==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30261==
>>> > > > ==30259== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30259==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30259==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30259==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30259==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30259==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30259==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30259==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30259==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30259==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30259==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30259==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30259==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30259==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30259==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30259==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30259==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30259==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30259==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30259==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30259==  Address 0xf615468 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30259==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30259==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30259==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30259==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30259==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30259==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30259==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30259==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30259==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30259==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30259==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30259==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30259==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30259==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30259==  Uninitialised value was created by a heap allocation
>>> > > > ==30259==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30259==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30259==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30259==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30259==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30259==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30259==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30259==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30259==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30259==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30259==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30259==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30259==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30259==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30259==
>>> > > > ==30257== Syscall param writev(vector[...]) points to
>>> uninitialised byte(s)
>>> > > > ==30257==    at 0xE11ACDB: writev (writev.c:51)
>>> > > > ==30257==    by 0xDAC9596: MPL_large_writev (mplsock.c:32)
>>> > > > ==30257==    by 0xDAB8DC9: MPIDU_Sock_writev (sock_immed.i:610)
>>> > > > ==30257==    by 0xDA739CD: MPIDI_CH3_iSendv (ch3_isendv.c:84)
>>> > > > ==30257==    by 0xDA43948: MPIDI_CH3_EagerContigIsend
>>> (ch3u_eager.c:556)
>>> > > > ==30257==    by 0xDA58574: MPID_Isend (mpid_isend.c:138)
>>> > > > ==30257==    by 0xD930ED8: PMPI_Isend (isend.c:125)
>>> > > > ==30257==    by 0x67A605A: pdgstrf2_trsm (pdgstrf2.c:199)
>>> > > > ==30257==    by 0x67A11C7: pdgstrf (pdgstrf.c:1084)
>>> > > > ==30257==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30257==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30257==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30257==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30257==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30257==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30257==    by 0x6013E35: PCSetUp_Redundant (redundant.c:171)
>>> > > > ==30257==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30257==    by 0x6023C6F: KSPSetUp (itfunc.c:390)
>>> > > > ==30257==    by 0x405E42: main (ex10.c:316)
>>> > > > ==30257==  Address 0xf615c38 is 72 bytes inside a block of size
>>> 131,072 alloc'd
>>> > > > ==30257==    at 0x4C2B6CD: malloc (in
>>> /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
>>> > > > ==30257==    by 0x67B5CBD: superlu_malloc_dist (memory.c:108)
>>> > > > ==30257==    by 0x6785666: doubleMalloc_dist (dmemory_dist.c:145)
>>> > > > ==30257==    by 0x67A022E: pdgstrf (pdgstrf.c:737)
>>> > > > ==30257==    by 0x6787708: pdgssvx (pdgssvx.c:1109)
>>> > > > ==30257==    by 0x58C32E4: MatLUFactorNumeric_SuperLU_DIST
>>> (superlu_dist.c:421)
>>> > > > ==30257==    by 0x591B10A: MatLUFactorNumeric (matrix.c:2946)
>>> > > > ==30257==    by 0x5E581F6: PCSetUp_LU (lu.c:164)
>>> > > > ==30257==    by 0x5DA8CFA: PCSetUp (precon.c:984)
>>> > > > ==30257==    by 0x6023C6F: K
>>
>>
>
> --
> Jeff Hammond
> jeff.science at gmail.com
> http://jeffhammond.github.io/
>
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