<div dir="ltr">sure thing. Here's what I get when I directly run the executable (no MPI if I understand correctly). If I do "mpirun -n 1 valgrind ./run", I get the exact same thing.<div><div><br></div><div>
<p class="">==29900== Memcheck, a memory error detector</p>
<p class="">==29900== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.</p>
<p class="">==29900== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info</p>
<p class="">==29900== Command: ./run</p>
<p class="">==29900== </p>
<p class="">==29900== Conditional jump or move depends on uninitialised value(s)</p>
<p class="">==29900== at 0xACE64AF: ____strtoul_l_internal (strtol_l.c:438)</p>
<p class="">==29900== by 0x71C2EE2: gotoblas_affinity_init (in /usr/lib/openblas-base/libopenblas.so.0)</p>
<p class="">==29900== by 0x6E9811A: gotoblas_init (in /usr/lib/openblas-base/libopenblas.so.0)</p>
<p class="">==29900== by 0x400DF7F: call_init (dl-init.c:85)</p>
<p class="">==29900== by 0x400E076: _dl_init (dl-init.c:134)</p>
<p class="">==29900== by 0x4000B29: ??? (in /lib/x86_64-linux-gnu/<a href="http://ld-2.13.so">ld-2.13.so</a>)</p>
<p class="">==29900== </p>
<p class="">==29900== Conditional jump or move depends on uninitialised value(s)</p>
<p class="">==29900== at 0xACE6427: ____strtoul_l_internal (strtol_l.c:442)</p>
<p class="">==29900== by 0x71C2EE2: gotoblas_affinity_init (in /usr/lib/openblas-base/libopenblas.so.0)</p>
<p class="">==29900== by 0x6E9811A: gotoblas_init (in /usr/lib/openblas-base/libopenblas.so.0)</p>
<p class="">==29900== by 0x400DF7F: call_init (dl-init.c:85)</p>
<p class="">==29900== by 0x400E076: _dl_init (dl-init.c:134)</p>
<p class="">==29900== by 0x4000B29: ??? (in /lib/x86_64-linux-gnu/<a href="http://ld-2.13.so">ld-2.13.so</a>)</p>
<p class="">==29900== </p>
<p class="">==29900== Use of uninitialised value of size 8</p>
<p class="">==29900== at 0xACE6465: ____strtoul_l_internal (strtol_l.c:466)</p>
<p class="">==29900== by 0x71C2EE2: gotoblas_affinity_init (in /usr/lib/openblas-base/libopenblas.so.0)</p>
<p class="">==29900== by 0x6E9811A: gotoblas_init (in /usr/lib/openblas-base/libopenblas.so.0)</p>
<p class="">==29900== by 0x400DF7F: call_init (dl-init.c:85)</p>
<p class="">==29900== by 0x400E076: _dl_init (dl-init.c:134)</p>
<p class="">==29900== by 0x4000B29: ??? (in /lib/x86_64-linux-gnu/<a href="http://ld-2.13.so">ld-2.13.so</a>)</p>
<p class="">==29900== </p>
<p class="">==29900== Invalid read of size 8</p>
<p class="">==29900== at 0xAD378CD: _wordcopy_fwd_dest_aligned (wordcopy.c:205)</p>
<p class="">==29900== by 0xAD3156E: __GI_memmove (memmove.c:76)</p>
<p class="">==29900== by 0xAD38B7B: argz_insert (argz-insert.c:55)</p>
<p class="">==29900== by 0xA4405E5: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA4407FF: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA43FFC8: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA440F57: lt_dlforeachfile (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA447FCE: mca_base_component_find (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA448AC1: mca_base_components_open (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA463C44: opal_paffinity_base_open (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA439AD2: opal_init (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA1E6B3E: orte_init (in /usr/lib/openmpi/lib/libopen-rte.so.0.0.0)</p>
<p class="">==29900== Address 0xc15a998 is 40 bytes inside a block of size 47 alloc'd</p>
<p class="">==29900== at 0x4C28BED: malloc (vg_replace_malloc.c:263)</p>
<p class="">==29900== by 0xA43F658: lt__malloc (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA44078E: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA43FFC8: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA440F57: lt_dlforeachfile (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA447FCE: mca_base_component_find (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA448AC1: mca_base_components_open (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA463C44: opal_paffinity_base_open (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA439AD2: opal_init (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA1E6B3E: orte_init (in /usr/lib/openmpi/lib/libopen-rte.so.0.0.0)</p>
<p class="">==29900== by 0x9F5E373: ??? (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x9F7F20D: PMPI_Init_thread (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== </p>
<p class="">==29900== Syscall param sched_setaffinity(mask) points to unaddressable byte(s)</p>
<p class="">==29900== at 0xAD852F9: syscall (syscall.S:39)</p>
<p class="">==29900== by 0xFD75621: ??? (in /usr/lib/openmpi/lib/openmpi/mca_paffinity_linux.so)</p>
<p class="">==29900== by 0xFD75A3C: ??? (in /usr/lib/openmpi/lib/openmpi/mca_paffinity_linux.so)</p>
<p class="">==29900== by 0xFD76599: ??? (in /usr/lib/openmpi/lib/openmpi/mca_paffinity_linux.so)</p>
<p class="">==29900== by 0xFD754AC: ??? (in /usr/lib/openmpi/lib/openmpi/mca_paffinity_linux.so)</p>
<p class="">==29900== by 0xA463AEA: opal_paffinity_base_select (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA439B0D: opal_init (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA1E6B3E: orte_init (in /usr/lib/openmpi/lib/libopen-rte.so.0.0.0)</p>
<p class="">==29900== by 0x9F5E373: ??? (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x9F7F20D: PMPI_Init_thread (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x4F95F49: PetscInitialize (pinit.c:675)</p>
<p class="">==29900== by 0x400CC6: main (prog.c:5)</p>
<p class="">==29900== Address 0x0 is not stack'd, malloc'd or (recently) free'd</p>
<p class="">==29900== </p>
<p class="">==29900== Conditional jump or move depends on uninitialised value(s)</p>
<p class="">==29900== at 0x9F5E578: ??? (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x9F7F20D: PMPI_Init_thread (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x4F95F49: PetscInitialize (pinit.c:675)</p>
<p class="">==29900== by 0x400CC6: main (prog.c:5)</p>
<p class="">==29900== </p>
<p class="">==29900== Conditional jump or move depends on uninitialised value(s)</p>
<p class="">==29900== at 0x9F5E57C: ??? (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x9F7F20D: PMPI_Init_thread (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x4F95F49: PetscInitialize (pinit.c:675)</p>
<p class="">==29900== by 0x400CC6: main (prog.c:5)</p>
<p class="">==29900== </p>
<p class="">==29900== Syscall param writev(vector[...]) points to uninitialised byte(s)</p>
<p class="">==29900== at 0xAD81BE7: writev (writev.c:56)</p>
<p class="">==29900== by 0x11397E22: ??? (in /usr/lib/openmpi/lib/openmpi/mca_oob_tcp.so)</p>
<p class="">==29900== by 0x11398C5C: ??? (in /usr/lib/openmpi/lib/openmpi/mca_oob_tcp.so)</p>
<p class="">==29900== by 0x1139C2EB: ??? (in /usr/lib/openmpi/lib/openmpi/mca_oob_tcp.so)</p>
<p class="">==29900== by 0x1118E7BD: ??? (in /usr/lib/openmpi/lib/openmpi/mca_rml_oob.so)</p>
<p class="">==29900== by 0x1118EDB8: ??? (in /usr/lib/openmpi/lib/openmpi/mca_rml_oob.so)</p>
<p class="">==29900== by 0x10D85AD8: ??? (in /usr/lib/openmpi/lib/openmpi/mca_grpcomm_bad.so)</p>
<p class="">==29900== by 0x10D854DE: ??? (in /usr/lib/openmpi/lib/openmpi/mca_grpcomm_bad.so)</p>
<p class="">==29900== by 0x9F5EBAE: ??? (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x9F7F20D: PMPI_Init_thread (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x4F95F49: PetscInitialize (pinit.c:675)</p>
<p class="">==29900== by 0x400CC6: main (prog.c:5)</p>
<p class="">==29900== Address 0x1815faf7 is 87 bytes inside a block of size 256 alloc'd</p>
<p class="">==29900== at 0x4C28CCE: realloc (vg_replace_malloc.c:632)</p>
<p class="">==29900== by 0xA43ADB7: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0xA43B8CD: ??? (in /usr/lib/openmpi/lib/libopen-pal.so.0.0.0)</p>
<p class="">==29900== by 0x10D85AAC: ??? (in /usr/lib/openmpi/lib/openmpi/mca_grpcomm_bad.so)</p>
<p class="">==29900== by 0x10D854DE: ??? (in /usr/lib/openmpi/lib/openmpi/mca_grpcomm_bad.so)</p>
<p class="">==29900== by 0x9F5EBAE: ??? (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x9F7F20D: PMPI_Init_thread (in /usr/lib/openmpi/lib/libmpi.so.0.0.4)</p>
<p class="">==29900== by 0x4F95F49: PetscInitialize (pinit.c:675)</p>
<p class="">==29900== by 0x400CC6: main (prog.c:5)</p>
<p class="">==29900== </p>
<p class="">==29900== </p>
<p class="">==29900== HEAP SUMMARY:</p>
<p class="">==29900== in use at exit: 258,198 bytes in 2,787 blocks</p>
<p class="">==29900== total heap usage: 11,718 allocs, 8,931 frees, 17,060,981 bytes allocated</p>
<p class="">==29900== </p>
<p class="">==29900== LEAK SUMMARY:</p>
<p class="">==29900== definitely lost: 5,956 bytes in 55 blocks</p>
<p class="">==29900== indirectly lost: 3,722 bytes in 22 blocks</p>
<p class="">==29900== possibly lost: 0 bytes in 0 blocks</p>
<p class="">==29900== still reachable: 248,520 bytes in 2,710 blocks</p>
<p class="">==29900== suppressed: 0 bytes in 0 blocks</p>
<p class="">==29900== Rerun with --leak-check=full to see details of leaked memory</p>
<p class="">==29900== </p>
<p class="">==29900== For counts of detected and suppressed errors, rerun with: -v</p>
<p class="">==29900== Use --track-origins=yes to see where uninitialised values come from</p>
<p class="">==29900== ERROR SUMMARY: 619 errors from 8 contexts (suppressed: 4 from 4)</p></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jan 22, 2014 at 6:40 PM, Jed Brown <span dir="ltr"><<a href="mailto:jed@jedbrown.org" target="_blank">jed@jedbrown.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">David Liu <<a href="mailto:daveliu@mit.edu">daveliu@mit.edu</a>> writes:<br>
<br>
> Hi, I'm running a very simple code, consisting of just PetscFinalize and<br>
> PetscInitialize and nothing else.<br>
><br>
> I'm running it with valgrind using the command<br>
> "valgrind ./run"<br>
><br>
> I also tried (as the petsc homepage suggests)<br>
> ${PETSC_DIR}/bin/petscmpiexec -valgrind -n 1 ./run -malloc off<br>
><br>
> For both cases, I get tons of error messages like<br>
> "Conditional jump or move depends on uninitialised value(s)"<br>
> "Use of uninitialised value of size 8"<br>
> "Invalid read of size 8"<br>
> "Address 0xc15a998 is 40 bytes inside a block of size 47 alloc'd"<br>
<br>
</div>You have to send the *exact and complete* output, not snippets. Are you<br>
using Open MPI? Chances are this is in the stack somewhere because we<br>
regularly test PETSc itself using valgrind.<br>
</blockquote></div><br></div>