[OMPI users] Send Recv Bandwidth

Hi, I was comparing a simple Send-Recv program to another program with two memcpy's to/from shared memory. Number of processes = 2 and different array sizes (from 10^6 - 10^8 doubles) on IA64. With the --mca btl sm,self options I get almost twice the bandwidth compared to the two memcpy's. I loo

Re: [OMPI users] status of cuda across multiple IO hubs?

Yes, unfortunately, that issue is still unfixed. I just created the ticket and included a possible workaround. https://svn.open-mpi.org/trac/ompi/ticket/3531 >-Original Message- >From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] >On Behalf Of Russell Power >Sent: Mond

[OMPI users] status of cuda across multiple IO hubs?

I'm running into issues when trying to use GPUs in a multiprocessor system when using the latest release candidate (1.7rc8). Specifically, it looks like the OpenMPI code is still assuming that all GPUs are on the same IOH, as in this message from a few months ago: http://www.open-mpi.org/community

Re: [OMPI users] Segmentation fault error with IB support when number of processes is greater 129

If you have multiple active ports, you might as well utilize them. After all, you paid for them! You should disable udapl; it's really not useful unless you're going to run intel MPI. You do need to fix the registration memory issue - see the FAQ for that. So yes, none of these may be contri

Re: [OMPI users] Segmentation fault error with IB support when number of processes is greater 129

Hello, Thank you for your answer. But below 129 code runs well even with these warnings. I have following warnings: 1. WARNING: There are more than one active ports on host 'compute-0-0.local' 2. WARNING: Failed to open "OpenIB-cma-1" [DAT_INVALID_ADDRESS:]. 3. open_hca: getaddr_netdev ERROR:

Re: [OMPI users] Segmentation fault error with IB support when number of processes is greater 129

Did the check the FAQ entries listed on all the warning messages that you're getting? You should probably fix those first. Sent from my phone. No type good. On Mar 10, 2013, at 4:30 AM, "Svyatoslav Korneev" wrote: > Dear Community, > > I have 4 computing nodes and front-end. Computing nod

Re: [OMPI users] Anyone has OpenMPI Logo (Vector Graphics only)

Hi, Am 11.03.2013 um 12:04 schrieb devendra rai: > Hello All, > > I know that this is something out of topic here: but does anyone have OpenMPI > logo in vector graphics (preferably SVG), that I can use in my documents and > presentations? there is a search box on Open MPI's homepage and the

[OMPI users] Anyone has OpenMPI Logo (Vector Graphics only)

Hello All, I know that this is something out of topic here: but does anyone have OpenMPI logo in vector graphics (preferably SVG), that I can use in my documents and presentations? Thanks a lot for any help. Devendra