On 08/06/2014 11:50 AM, Mohamad Chaarawi wrote:
To replicate, run the program with 2 or more procs: mpirun -np 2 ./hindexed_io mpi_test_file [jam:15566] *** Process received signal *** [jam:15566] Signal: Segmentation fault (11) [jam:15566] Signal code: Address not mapped (1) [jam:15566] Failing at address: (nil) [jam:15566] [ 0] [0xfcd440] [jam:15566] [ 1] /scr/chaarawi/install/ompi/lib/libmpi.so.1(ADIOI_Flatten_datatype+0x17a)[0xc80f2a]
I bet OpenMPI needs to pick up a few patches for this fault: - http://git.mpich.org/mpich.git/commit/50f3d5806 - http://git.mpich.org/mpich.git/commit/97114ec5b - http://git.mpich.org/mpich.git/commit/90e15e9b0 - http://git.mpich.org/mpich.git/commit/76a079c7c ... and two more patches that are sitting in my tree waiting review. ==rob
[jam:15566] [ 2] /scr/chaarawi/install/ompi/lib/libmpi.so.1(ADIO_Set_view+0x1c1)[0xc72a6d] [jam:15566] [ 3] /scr/chaarawi/install/ompi/lib/libmpi.so.1(mca_io_romio_dist_MPI_File_set_view+0x69b)[0xc8d11b] [jam:15566] [ 4] /scr/chaarawi/install/ompi/lib/libmpi.so.1(mca_io_romio_file_set_view+0x7c)[0xc4f7c5] [jam:15566] [ 5] /scr/chaarawi/install/ompi/lib/libmpi.so.1(PMPI_File_set_view+0x1e6)[0xb32f7e] [jam:15566] [ 6] ./hindexed_io[0x8048aa6] [jam:15566] [ 7] /lib/libc.so.6(__libc_start_main+0xdc)[0x7d5ebc] [jam:15566] [ 8] ./hindexed_io[0x80487e1] [jam:15566] *** End of error message *** If I use --mca io ompio with 2 or more procs, the program segfaults in write_at_all (regardless of what routine is used to construct a 0 sized datatype): [jam:15687] *** Process received signal *** [jam:15687] Signal: Floating point exception (8) [jam:15687] Signal code: Integer divide-by-zero (1) [jam:15687] Failing at address: 0x3e29b7 [jam:15687] [ 0] [0xe56440] [jam:15687] [ 1] /scr/chaarawi/install/ompi/lib/libmpi.so.1(ompi_io_ompio_set_explicit_offset+0x9d)[0x3513bc] [jam:15687] [ 2] /scr/chaarawi/install/ompi/lib/libmpi.so.1(ompio_io_ompio_file_write_at_all+0x3e)[0x35869a] [jam:15687] [ 3] /scr/chaarawi/install/ompi/lib/libmpi.so.1(mca_io_ompio_file_write_at_all+0x66)[0x358650] [jam:15687] [ 4] /scr/chaarawi/install/ompi/lib/libmpi.so.1(MPI_File_write_at_all+0x1b3)[0x1f46f3] [jam:15687] [ 5] ./hindexed_io[0x8048b07] [jam:15687] [ 6] /lib/libc.so.6(__libc_start_main+0xdc)[0x7d5ebc] [jam:15687] [ 7] ./hindexed_io[0x80487e1] [jam:15687] *** End of error message *** If I use mpich 3.1.2 , I don't see those issues. Thanks, Mohamad _______________________________________________ users mailing list us...@open-mpi.org Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users Link to this post: http://www.open-mpi.org/community/lists/users/2014/08/24931.php
-- Rob Latham Mathematics and Computer Science Division Argonne National Lab, IL USA
