Hi, I am trying to read a large data (11.7GB) with libmesh and use it for my application. The program runs well when using just one process. But in parallel (mpirun -n 4), after executing a while, some errors came out:
[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 <http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind> [0]PETSC ERROR: or try http://valgrind.org <http://valgrind.org/> on GNU/linux and Apple Mac OS X to find memory corruption errors [0]PETSC ERROR: likely location of problem given in stack below [0]PETSC ERROR: --------------------- Stack Frames ------------------------------------ [0]PETSC ERROR: Note: The EXACT line numbers in the stack are not available, [0]PETSC ERROR: INSTEAD the line number of the start of the function [0]PETSC ERROR: is given. [0]PETSC ERROR: --------------------- Error Message -------------------------------------------------------------- [0]PETSC ERROR: Signal received [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html <http://www.mcs.anl.gov/petsc/documentation/faq.html> for trouble shooting. [0]PETSC ERROR: Petsc Release Version 3.7.2, Jun, 05, 2016 [0]PETSC ERROR: ./ptracer on a arch-linux2-c-debug named compute001 by jiangzhang Fri Jul 1 10:07:07 2016 [0]PETSC ERROR: Configure options --prefix=/nfs/proj-tpeterka/jiang/opt/petsc-3.7.2 --download-fblaslapack --with-mpi-dir=/nfs/proj-tpeterka/jiang/libraries/mpich-3.2 [0]PETSC ERROR: #1 User provided function() line 0 in unknown file application called MPI_Abort(MPI_COMM_WORLD, 59) - process 0 Anybody know the possible causes? ------------------------------------------------------------------------------ Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape _______________________________________________ Libmesh-users mailing list Libmesh-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-users
