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 Mul

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? > > > >

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

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

2015-05-20 Thread Rolf vandeVaart
-Original Message- >From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Lev Givon >Sent: Tuesday, May 19, 2015 10:25 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

2015-05-19 Thread Lev Givon
uIpcOpenMemHandle failure when using OpenMPI > >1.8.5 with CUDA 7.0 and Multi-Process Service > > > >I'm encountering intermittent errors while trying to use the Multi-Process > >Service with CUDA 7.0 for improving concurrent access to a Kepler K20Xm GPU > >by

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

2015-05-19 Thread Lev Givon
] cuIpcOpenMemHandle failure when using OpenMPI > >1.8.5 with CUDA 7.0 and Multi-Process Service > > > >I'm encountering intermittent errors while trying to use the Multi-Process > >Service with CUDA 7.0 for improving concurrent access to a Kepler K20Xm GPU > >

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

2015-05-19 Thread Rolf vandeVaart
Lev Givon >Sent: Tuesday, May 19, 2015 6:30 PM >To: us...@open-mpi.org >Subject: [OMPI users] cuIpcOpenMemHandle failure when using OpenMPI >1.8.5 with CUDA 7.0 and Multi-Process Service > >I'm encountering intermittent errors while trying to use the Multi-Process >Service w

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

2015-05-19 Thread Lev Givon
I'm encountering intermittent errors while trying to use the Multi-Process Service with CUDA 7.0 for improving concurrent access to a Kepler K20Xm GPU by multiple MPI processes that perform GPU-to-GPU communication with each other (i.e., GPU pointers are passed to the MPI transmission primitives).