Xujun: Test your code with valgrind to see if it is valgrind clean. Hong
Hi all, > > I am trying to solve my problem with a direct solver superLU_dist. > But the KSPSolve failed in the "opt" mode. I shifted to the "dbg" version > and wanted to see what error info I can get from the PETSc. Surprisingly, > it passed the solve and didn't output any errors in the "dbg" version. Does > anyone have the similar experience? and what type of potential bugs it may > have? > > > --->test in StokesSolver::solve(): Start the KSP solve... > > [0]PETSC ERROR: > ------------------------------------------------------------------------ > > [0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, > probably memory access out of range > > [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger > > [0]PETSC ERROR: or see > http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind > > [0]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac OS > X to find memory corruption errors > > [0]PETSC ERROR: configure using --with-debugging=yes, recompile, link, and > run > > [0]PETSC ERROR: to get more information on the crash. > > [0]PETSC ERROR: --------------------- Error Message > -------------------------------------------------------------- > > [0]PETSC ERROR: Signal received > > [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html > for trouble shooting. > > [0]PETSC ERROR: Petsc Release Version 3.7.2, unknown > > [0]PETSC ERROR: ./example-dbg on a arch-darwin-c-opt named > mcswl091.mcs.anl.gov by xzhao Mon Jul 25 11:10:12 2016 > > [0]PETSC ERROR: Configure options --with-cc=gcc --with-cxx=g++ > --with-fc=gfortran --download-mpich --download-fblaslapack > --download-scalapack --download-mumps --download-superlu_dist > --download-hypre --download-ml --download-metis --download-parmetis > --download-triangle --download-chaco --with-debugging=0 > > [0]PETSC ERROR: #1 User provided function() line 0 in unknown file > > application called MPI_Abort(MPI_COMM_WORLD, 59) - process 0 > > >
