[petsc-dev] Error during KSPDestroy

[Barry Smith]

  Alexander,

   Sorry, never mind. I found the code in the earlier email.,

   barry

On May 6, 2012, at 12:49 PM, Barry Smith wrote:

> 
> Alexander,
> 
>   No attached test program. (only valgrind log).
> 
>  Barry
> 
> On May 6, 2012, at 8:21 AM, Alexander Grayver wrote:
> 
>> On 06.05.2012 15:07, Matthew Knepley wrote:
>>>> Hello,
>>>> 
>>>> I use KSP and random rhs to compute largest singular value:
>>>> 
>>>> 1) Is this the whole program? If not, this can be caused by memory corruption somewhere else. This is what I suspect.
>>> 
>>> Matt,
>>> 
>>> I can reproduce error using attached test programm and this matrix (7 mb):
>>> http://dl.dropbox.com/u/60982984/A.dat
>>> 
>>> I run it fine with the latest petsc-dev:
>>> 
>>>  1.405802e+00
>>> 
>>> Can you valgrind it on your machine?
>>> 
>> 
>> I did:
>> valgrind --tool=memcheck -q --num-callers=20 --log-file=valgrind.log.%p /solveTest -ksp_monitor_true_residual -log_summary -mat_type aij -ksp_rtol 1.0e-10 -malloc off
>> 
>> The error is better constrained:
>> 
>> ==20287== Invalid read of size 8
>> ==20287==    at 0x7874B4C: opal_os_path (in /opt/mpi/intel/openmpi-1.4.2/lib/libopen-pal.so.0.0.0)
>> ==20287==    by 0x75F2E27: orte_session_dir_finalize (in /opt/mpi/intel/openmpi-1.4.2/lib/libopen-rte.so.0.0.0)
>> ==20287==    by 0x76012E8: orte_errmgr_base_error_abort (in /opt/mpi/intel/openmpi-1.4.2/lib/libopen-rte.so.0.0.0)
>> ==20287==    by 0x73396E9: ompi_mpi_abort (in /opt/mpi/intel/openmpi-1.4.2/lib/libmpi.so.0.0.2)
>> ==20287==    by 0x734F36E: PMPI_Abort (in /opt/mpi/intel/openmpi-1.4.2/lib/libmpi.so.0.0.2)
>> ==20287==    by 0x7499AB: PetscDefaultSignalHandler (signal.c:169)
>> ==20287==    by 0x749267: PetscSignalHandler_Private (signal.c:53)
>> ==20287==    by 0x924B9DF: ??? (in /lib64/libc-2.11.1.so)
>> ==20287==    by 0x535D9E: VecDestroyVecs (vector.c:653)
>> ==20287==    by 0x68B61D: KSPReset_GMRES (gmres.c:258)
>> ==20287==    by 0x6A9D39: KSPReset (itfunc.c:733)
>> ==20287==    by 0x6AA839: KSPDestroy (itfunc.c:780)
>> ==20287==    by 0x4509F8: main (solveTest.c:66)
>> ==20287==  Address 0xbde4860 is 0 bytes inside a block of size 2 alloc'd
>> ==20287==    at 0x4C26B9B: malloc (vg_replace_malloc.c:263)
>> ==20287==    by 0x92876DF: vasprintf (in /lib64/libc-2.11.1.so)
>> ==20287==    by 0x9266C67: asprintf (in /lib64/libc-2.11.1.so)
>> ==20287==    by 0x75F1701: orte_util_convert_vpid_to_string (in /opt/mpi/intel/openmpi-1.4.2/lib/libopen-rte.so.0.0.0)
>> ==20287==    by 0x75F2D4A: orte_session_dir_finalize (in /opt/mpi/intel/openmpi-1.4.2/lib/libopen-rte.so.0.0.0)
>> ==20287==    by 0x76012E8: orte_errmgr_base_error_abort (in /opt/mpi/intel/openmpi-1.4.2/lib/libopen-rte.so.0.0.0)
>> ==20287==    by 0x73396E9: ompi_mpi_abort (in /opt/mpi/intel/openmpi-1.4.2/lib/libmpi.so.0.0.2)
>> ==20287==    by 0x734F36E: PMPI_Abort (in /opt/mpi/intel/openmpi-1.4.2/lib/libmpi.so.0.0.2)
>> ==20287==    by 0x7499AB: PetscDefaultSignalHandler (signal.c:169)
>> ==20287==    by 0x749267: PetscSignalHandler_Private (signal.c:53)
>> ==20287==    by 0x924B9DF: ??? (in /lib64/libc-2.11.1.so)
>> ==20287==    by 0x535D9E: VecDestroyVecs (vector.c:653)
>> ==20287==    by 0x68B61D: KSPReset_GMRES (gmres.c:258)
>> ==20287==    by 0x6A9D39: KSPReset (itfunc.c:733)
>> ==20287==    by 0x6AA839: KSPDestroy (itfunc.c:780)
>> ==20287==    by 0x4509F8: main (solveTest.c:66)
>> 
>> Full log is attached.
>> 
>> Important.
>> If I comment this line:
>> KSPComputeExtremeSingularValues(ksp, &maxx, &minx);
>> 
>> It works. 
>> 
>> -- 
>> Regards,
>> Alexander
>> 
>> <valgrind.zip>
>