Re: [OMPI users] cuIpcOpenMemHandle failure when using OpenMPI 1.8.5 with CUDA 7.0 and Multi-Process Service

Answers below... >-Original Message- >From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Lev Givon >Sent: Thursday, May 21, 2015 2:19 PM >To: Open MPI Users >Subject: Re: [OMPI users] cuIpcOpenMemHandle failure when using >OpenMPI 1.8.5 with CUDA 7.0 and Multi-Process Service >

Re: [OMPI users] cuIpcOpenMemHandle failure when using OpenMPI 1.8.5 with CUDA 7.0 and Multi-Process Service

Received from Lev Givon on Thu, May 21, 2015 at 11:32:33AM EDT: > Received from Rolf vandeVaart on Wed, May 20, 2015 at 07:48:15AM EDT: > > (snip) > > > I see that you mentioned you are starting 4 MPS daemons. Are you following > > the instructions here? > > > >

Re: [OMPI users] cuIpcOpenMemHandle failure when using OpenMPI 1.8.5 with CUDA 7.0 and Multi-Process Service

Received from Rolf vandeVaart on Wed, May 20, 2015 at 07:48:15AM EDT: (snip) > I see that you mentioned you are starting 4 MPS daemons. Are you following > the instructions here? > > http://cudamusing.blogspot.de/2013/07/enabling-cuda-multi-process-service-mps.html > Yes - also

Re: [OMPI users] Open MPI collectives algorithm selection

George, Thank you a lot. It makes more sense now. Best regards, Khalid On Thu, May 21, 2015 at 4:14 AM, George Bosilca wrote: > Khalid, > > The rule number zero is always selected by default. If the size you look > for (message or communicator) is larger than zero then

Re: [OMPI users] Open MPI collectives algorithm selection

Khalid, The rule number zero is always selected by default. If the size you look for (message or communicator) is larger than zero then another rule will be selected, otherwise zero is the best selection. Same thing for communicator and size, a consistent approach from my perspective. If you