Re: [OMPI users] Call to MPI_Test has large time-jitter

2010-12-18 Thread Sashi Balasingam
I forgot add some other details...   1) I am setting the affinity of each process to a specific core, explicitly in my application (...with OS system call)   2) I enabled the 'use_eager_rdma' with the corresponding buffer limit at 32 KBytes( large enough to cover all my message sizes)   3) I set

[OMPI users] Random hungs of applications when using the openib BTL

2010-12-18 Thread Kamel Mazouzi
Hello, We have a random hungs of some applications (NAMD, Molpro, ...) when using openib BTL. We are using ompi 1.4.3 and ompi 1.3.4 compiled with icc intel compiler. linux kernel : 2.6.18-128 RH, node have 8 cores. OFED version : 3.2 ibv_devifno seems to be ok on all nodes. Note that we do

Re: [OMPI users] Call to MPI_Test has large time-jitter

2010-12-18 Thread Tim Prince
On 12/17/2010 6:43 PM, Sashi Balasingam wrote: Hi, I recently started on an MPI-based, 'real-time', pipelined-processing application, and the application fails due to large time-jitter in sending and receiving messages. Here are related info - 1) Platform: a) Intel Box: Two Hex-core, Intel Xeo

Re: [OMPI users] Using (or not using) Torque/Moab under PBS Pro as the OpenMPI launcher

2010-12-18 Thread Reuti
Hi, Am 17.12.2010 um 23:34 schrieb Brock Palen: > You can build openMPI without tm, which will disable it, or you can test > first with a nasty option like: > > mpirun \ >--mca plm ^tm \ >--mca ras ^tm \ >--hostfile $PBS_NODEFILE \ >