[petsc-dev] valgrind errors in the SUPERLU*

[Jeff Hammond]

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
> <javascript:_e(%7B%7D,'cvml','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
>> <javascript:_e(%7B%7D,'cvml','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
>> <javascript:_e(%7B%7D,'cvml','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
>> <javascript:_e(%7B%7D,'cvml','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
>> <javascript:_e(%7B%7D,'cvml','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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