<div>I can only analysis the core file at present.<br>It reported <br>Program terminated with signal 11, Segmentation fault.<br>#0 0x000000010217319c in dmumps_462 ()<br><br>Run program with -info, the output is<br><br>Entering DMUMPS driver with JOB, N, NZ = 1 49 217<br><br> DMUMPS 4.10.0<br>L U Solver for unsymmetric matrices<br>Type of parallelism: Working host<br><br> ****** ANALYSIS STEP ********<br><br> Resetting candidate strategy to 0 because NSLAVES=1<br><br> ... Structural symmetry (in percent)= 100<br> Density: NBdense, Average, Median = 0 3 3<br> ... No column permutation<br> Ordering based on AMF<br><br>Program terminated with signal SIGSEGV, Segmentation fault.<br><br>The example in src/ksp/ksp/examples/tests/ex3 run ok -- it solves a small linear problem.<br>Also, if I reduce the matrix size to ~20x20, no crash happen.<br><br>I'll try to provide more information. <br><br><br><br></div><div> <br></div><blockquote style="padding-left:5px;margin-left:5px;border-left:#a0c6e5 2px solid;margin-right:0px">On Tue, Dec 6, 2011 at 12:52 AM, Gong Ding <span dir="ltr"><<a href="mailto:gdiso@ustc.edu">gdiso@ustc.edu</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div>Bad news.<br>MUMPS still crash on AIX/PPC.<br>I tried petsc-3.1, 3.2 and dev. All of them crash with ERROR: 0031-250 task 0: Segmentation fault.<br>I guess the interface of petsc-mumps has some problem, i.e. alignment.<br>
</div></blockquote><div><br></div><div>Please get a stack trace with the debugger.</div><div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div></div><blockquote style="padding-left:5px;margin-left:5px;border-left:#a0c6e5 2px solid;margin-right:0px"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Yes, petsc-dev works. Please merge the update to petsc-3.2.</blockquote><div><br></div><div>Parmetis 4.0 was released after PETSc 3.2 so it will not be updated to work with it. In general, software projects don't update a previous release on a dependent package update. Please use petsc-dev or wait until PETSc 3.3.</div>
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</blockquote><span></span></blockquote></div><br><br clear="all"><div><br></div>-- <br>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>
-- Norbert Wiener<br>
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