Sorry for my silence on that, I was out for a couple of days. I have a
patch that made ompio work for Mohamads test, he is testing it now on
his own/additional test cases, and I'll commit it (and file a CMR) as
soon as we have feedback on that.
Thanks
Edgar
On 8/12/2014 10:30 AM, Jeff Squyres (jsquyres) wrote:
I filed https://svn.open-mpi.org/trac/ompi/ticket/4856 to apply these ROMIO
patches.
Probably won't happen until 1.8.3.
On Aug 6, 2014, at 2:54 PM, Rob Latham <r...@mcs.anl.gov> wrote:
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
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--
Rob Latham
Mathematics and Computer Science Division
Argonne National Lab, IL USA
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Edgar Gabriel
Associate Professor
Parallel Software Technologies Lab http://pstl.cs.uh.edu
Department of Computer Science University of Houston
Philip G. Hoffman Hall, Room 524 Houston, TX-77204, USA
Tel: +1 (713) 743-3857 Fax: +1 (713) 743-3335
