Re: [OMPI users] MPI-I/O issues

2014-08-13 Thread Edgar Gabriel
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

Re: [OMPI users] MPI-I/O issues

2014-08-12 Thread Jeff Squyres (jsquyres)
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 wrote: > > > On 08/06/2014 11:50 AM, Mohamad Chaarawi wrote: > >> To replicate, run the program with 2 or more procs: >> >> mpirun

Re: [OMPI users] MPI-I/O issues

2014-08-11 Thread George Bosilca
On Mon, Aug 11, 2014 at 10:41 AM, Rob Latham wrote: > > > On 08/11/2014 08:54 AM, George Bosilca wrote: > >> The patch related to ticket #4597 is zapping only the datatypes where >> the user explicitly provided a zero count. >> >> We can argue about LB and UB, but I have a hard time understanding

Re: [OMPI users] MPI-I/O issues

2014-08-11 Thread Rob Latham
On 08/11/2014 08:54 AM, George Bosilca wrote: The patch related to ticket #4597 is zapping only the datatypes where the user explicitly provided a zero count. We can argue about LB and UB, but I have a hard time understanding the rationale of allowing zero count only for LB and UB. If it is re

Re: [OMPI users] MPI-I/O issues

2014-08-11 Thread George Bosilca
The patch related to ticket #4597 is zapping only the datatypes where the user explicitly provided a zero count. We can argue about LB and UB, but I have a hard time understanding the rationale of allowing zero count only for LB and UB. If it is required by the standard we can easily support it (t

Re: [OMPI users] MPI-I/O issues

2014-08-11 Thread Rob Latham
On 08/10/2014 07:32 PM, Mohamad Chaarawi wrote: Update: George suggested that I try with the 1.8.2 rc3 and that one resolves the hindexed_block segfault that I was seeing with ompi. the I/O part now works with ompio, but needs the patches from Rob in ROMIO to work correctly. The 2nd issue wit

Re: [OMPI users] MPI-I/O issues

2014-08-10 Thread Mohamad Chaarawi
Update: George suggested that I try with the 1.8.2 rc3 and that one resolves the hindexed_block segfault that I was seeing with ompi. the I/O part now works with ompio, but needs the patches from Rob in ROMIO to work correctly. The 2nd issue with collective I/O where some processes participat

Re: [OMPI users] MPI-I/O issues

2014-08-06 Thread Rob Latham
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] Fai

Re: [OMPI users] MPI-I/O issues

2014-08-06 Thread Mohamad Chaarawi
Hi Rob, On 8/6/2014 1:32 PM, Rob Latham wrote: On 08/06/2014 11:50 AM, Mohamad Chaarawi wrote: If I use mpich 3.1.2 , I don't see those issues. What Mohamad forgot to tell you is that he doesn't see those issues because I patched them on monday. If I understood right, your patch was to

Re: [OMPI users] MPI-I/O issues

2014-08-06 Thread Rob Latham
On 08/06/2014 11:50 AM, Mohamad Chaarawi wrote: If I use mpich 3.1.2 , I don't see those issues. What Mohamad forgot to tell you is that he doesn't see those issues because I patched them on monday. ROMIO has some HINDEXED_BLOCK fixes that OMPI should pick up on the next romio resync. Y