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<p class="MsoNormal">Hello team,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m trying to use the options -malloc_dump and -malloc_debug to examine memory leaks. The messages however, are quite generic, and don’t really tell me where the problems occur, for example:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[ 0]1520 bytes VecCreate() line 35 in /home/yyy910805/petsc/src/vec/vec/interface/veccreate.c<o:p></o:p></p>
<p class="MsoNormal"> [0] PetscMallocA() line 35 in /home/yyy910805/petsc/src/sys/memory/mal.c<o:p></o:p></p>
<p class="MsoNormal"> [0] VecCreate() line 30 in /home/yyy910805/petsc/src/vec/vec/interface/veccreate.c<o:p></o:p></p>
<p class="MsoNormal"> [0] VecDuplicate_Seq() line 804 in /home/yyy910805/petsc/src/vec/vec/impls/seq/bvec2.c<o:p></o:p></p>
<p class="MsoNormal"> [0] VecDuplicate() line 375 in /home/yyy910805/petsc/src/vec/vec/interface/vector.c<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The code is huge, so going through every single VecCreate/VecDuplicate and VecDestroy is going to be time-consuming. Meanwhile, running valgrind gave me some uninitialized values errors that don’t seem to be related to the above message
(or maybe they are?).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">How can I use this option to debug effectively?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks a lot,<o:p></o:p></p>
<p class="MsoNormal">Yuyun<o:p></o:p></p>
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