Re: [OMPI users] Controlling spawned process

Couple of things you can try: * add --oversubscribe to your mpirun cmd line so it doesn’t care how many slots there are * modify your MPI_INFO to be “host”, “node0:22” so it thinks there are more slots available It’s possible that the “host” info processing has a bug in it, but this will tell

[OMPI users] Controlling spawned process

Dear colleagues, I need some help controlling where a process spawned with MPI_Comm_spawn goes. I am in openmpi-1.10 under Centos 6.7. My application is written in C and am running on a RedBarn system with a master node (hardware box) that connects to the outside world and two other nodes connecte

Re: [OMPI users] OpenMPI with-tm is not obeying torque

Hi Anthony, Ralph, Gilles, all As far as I know, for core/processor assignment to user jobs to work, Torque needs to be configured with cpuset support (configure --enable-cpuset ...). That is separate from what OpenMPI does in terms of process binding. Otherwise, the user processes in the job wil

Re: [OMPI users] OpenMPI with-tm is not obeying torque

No problem - glad you were able to work it out! > On Oct 5, 2017, at 11:22 PM, Anthony Thyssen > wrote: > > Sorry r...@open-mpi.org as Gilles Gouaillardet > pointed out to me the problem wasn't OpenMPI, but with the specific EPEL > implementation (see Redhat Bugz