Get updated mumps interface in petsc-dev. Run your code with '-mat_mumps_icntl_4 4' which will display mumps info
Use a debugger to see where the program terminates. Hong On Tue, Dec 6, 2011 at 10:54 PM, Gong Ding <gdiso at ustc.edu> wrote: > I can only analysis the core file at present. > It reported > Program terminated with signal 11, Segmentation fault. > #0? 0x000000010217319c in dmumps_462 () > > Run program with -info, the output is > > Entering DMUMPS driver with JOB, N, NZ =?? 1????????? 49??????????? 217 > > ?DMUMPS 4.10.0 > L U Solver for unsymmetric matrices > Type of parallelism: Working host > > ?****** ANALYSIS STEP ******** > > ?Resetting candidate strategy to 0 because NSLAVES=1 > > ?... Structural symmetry (in percent)=? 100 > ?Density: NBdense, Average, Median?? =??? 0??? 3??? 3 > ?... No column permutation > ?Ordering based on AMF > > Program terminated with signal SIGSEGV, Segmentation fault. > > The example in src/ksp/ksp/examples/tests/ex3 run ok -- it solves a small > linear problem. > Also, if I reduce the matrix size to ~20x20, no crash happen. > > I'll try to provide more information. > > > > > > On Tue, Dec 6, 2011 at 12:52 AM, Gong Ding <gdiso at ustc.edu> wrote: >> >> Bad news. >> MUMPS still crash on AIX/PPC. >> I tried petsc-3.1, 3.2 and dev. All of them crash with ERROR: 0031-250 >> task 0: Segmentation fault. >> I guess the interface of petsc-mumps has some problem, i.e. alignment. > > > Please get a stack trace with the debugger. > > ? ?Matt > >>> >>> Yes, petsc-dev works. Please merge the update to petsc-3.2. >> >> >> 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. > > > > > -- > What most experimenters take for granted before they begin their experiments > is infinitely more interesting than any results to which their experiments > lead. > -- Norbert Wiener
