[OMPI users] ppe-ompi 1.1 (OMPI on EC2)

I've released a new version of ppe-ompi , which is a system for running an OMPI network on EC2 (Amazon's cloud computing service): see release notes , download

[OMPI users] Problem with MPI_Barrier (Inter-communicator)

Hi there. I am facing a very strange problem when using MPI_Barrier over an inter-communicator after some operations I describe bellow: 1) I start a server calling mpirun. 2) The server spawns 2 copies of a client using MPI_Comm_spawn, creating an inter-communicator between the two groups. The se

Re: [OMPI users] CUDA RDMA not selected by default

+1 See the description of cm vs. ob1 in the OMPI README. Here's the latest description (I think we recently added a little more description here): https://svn.open-mpi.org/trac/ompi/browser/trunk/README#L421 The PSM MTL does not have CUDA support; the smcuda BTL is for ob1 only. On Mar 1

Re: [OMPI users] CUDA RDMA not selected by default

The selection of cm is not wrong per se. You will find that the psm mtl is much better than the openib btl for QLogic harware. -Nathan On Mon, 19 Mar 2012, Jens Glaser wrote: Hello, I am using the latest trunk version of OMPI, in order to take advantage of the new CUDA RDMA features (smcuda

[OMPI users] CUDA RDMA not selected by default

Hello, I am using the latest trunk version of OMPI, in order to take advantage of the new CUDA RDMA features (smcuda BTL). RDMA support is superb, however, I have to give a manual parameter mpirun --mca pml ob1 ... to have the OB1 upper layer selected and, consequently, to get smcuda activate

[OMPI users] configuration of openmpi-1.5.4 with visual studio

Hi everybody, I'm trying lately to configure openmpi with visual studio 2010, i did all the linking staff but i keep getting this message : [Toufik-PC:05628] [[21037,0],0] ORTE_ERROR_LOG: Error in file ..\..\..\openmpi-1.5.4\orte\mca\ess\hnp\ess_hnp_module.c at line 215