Re: [OMPI users] Multithreading applications with OMPI 1.7

2012-04-27 Thread Ralph Castain
On Apr 27, 2012, at 5:20 PM, Jens Glaser wrote: > Hi, > > we've tried to use a multithreaded application with a more recent trunk > version (March 21) of OpenMPI. We need to use this version because of CUDA > RDMA support. OpenMPI was binding all the threads to a single core, which is > undes

[OMPI users] Multithreading applications with OMPI 1.7

2012-04-27 Thread Jens Glaser
Hi, we've tried to use a multithreaded application with a more recent trunk version (March 21) of OpenMPI. We need to use this version because of CUDA RDMA support. OpenMPI was binding all the threads to a single core, which is undesirable. In OpenMPI 1.5. there was an option --cpus-per-rank, w