Re: [OMPI users] Rounding errors and MPI

2017-01-23 Thread Oscar Mojica
Jason I am sorry for my late answer. For my particular case, following the advice of Jeff gave me the results I wanted. By the way, thanks Jeff for the link, it was quite useful. I compiled my serial and parallel programs using -fp-model precise -fp-model source (Linux* or OS X*) to impr

Re: [OMPI users] KNEM errors when running OMPI 2.0.1

2017-01-23 Thread Juan A. Cordero Varelaq
Hi, I have run the same command but disabling KNEM (with -mca btl_sm_use_knem 0), and it gives me, still, the same errors. Futhermore, I've noticed when I run, for instance, ompi_info, I get one of the same errors as when running mpirun: Warning: Conflicting CPU frequencies detected, using:

Re: [OMPI users] MPI_File_write_shared() and MPI_MODE_APPEND issue ?

2017-01-23 Thread Edgar Gabriel
just wanted to give a brief update on this. The problem was in fact that we did not correctly move the shared file pointer to the end of the file when a file is opened in append mode. (The individual file pointer did the right thing however). The patch itself is not overly complected, I filed a

Re: [OMPI users] Open MPI over RoCE using breakout cable and switch

2017-01-23 Thread Brendan Myers
Hello Howard, Thank you for looking into this. Attached is the output you requested. Also, I am using Open MPI 2.0.1. Thank you, Brendan From: users [mailto:users-boun...@lists.open-mpi.org] On Behalf Of Howard Pritchard Sent: Friday, January 20, 2017 6:35 PM To: Open MPI Users Subjec