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

2015-05-21 Thread Rolf vandeVaart
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 > >R

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

2015-05-21 Thread Lev Givon
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? > > > > http://cudamusing.blogspot.de/20

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

2015-05-21 Thread Lev Givon
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 https://docs.

Re: [OMPI users] Open MPI collectives algorithm selection

2015-05-21 Thread Khalid Hasanov
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 another rule will be > s