<div dir="ltr">Also, if it matters, this is in serial. petsc version is petsc-dev and is compiled with g++ and OpenMPI. Also, OpenMPI is NOT installed by PETSc configure.<br><br><div class="gmail_quote">On Sat, May 12, 2012 at 1:33 AM, Mohammad Mirzadeh <span dir="ltr"><<a href="mailto:mirzadeh@gmail.com" target="_blank">mirzadeh@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi guys,<div><br></div><div>I'm having a really weird issue here! My code seg faults for certain problem size and after using gdb I have been able to pinpoint the problem to a VecGetArray call. Here's a series of things I have tried so far</div>
<div><br></div><div>1) -on_error_attach_debugger -----> unsuccessful; does not launch debugger </div><div>2) -start_in_debugger -------> unsuccessful; does not start debugger</div><div>3) attaching debugger myself -----> code runs in debugger and seg faults when calling VecGetArray</div>
<div>4) using ierr=VecGetArray;CHKERRQ(ierr) ------> PETSc does not produce error messages; the code simply seg faults and terminates</div><div>5) checking the values of ierr inside the debugger ---------> They are all 0 up untill the code terminates; I think this means petsc does not generate error?</div>
<div>6) checking for memory leak with valgrind -----------> All I get are leaks from OpenMPI and PetscInitialize and PetscFinalize; I think these are just routine and safe?</div><div><br></div><div>What else can I try to find the problem? Any recommendation is really appreciated!</div>
<div><br></div><div>Thanks,</div><div>Mohammad</div></div>
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