Re: [OMPI users] segfault during MPI_Isend when transmitting GPU arrays between multiple GPUs

>-Original Message- >From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Rolf >vandeVaart >Sent: Monday, March 30, 2015 9:37 AM >To: Open MPI Users >Subject: Re: [OMPI users] segfault during MPI_Isend when transmitting GPU >arrays between multiple GPUs > >>-Original

Re: [OMPI users] MPI_THREAD_MULTIPLE and openib btl

Hi MIke, Does the mxm mtl use infiniband rdma? Also from programming perspective, do I need to use anything else other than MPI_Send/MPI_Recv? Thanks, Subhra. On Sun, Mar 29, 2015 at 11:14 PM, Mike Dubman wrote: > Hi, > openib btl does not support this thread model.

Re: [OMPI users] [EXTERNAL] Re: Errors on POWER8 Ubuntu 14.04u2

If this is Power 8 in LE mode, its most likely a libtool issue. You need libtool >= 2.4.3, which has the LE patches, and need to run autogen.pl again. I have an issue open for this - https://github.com/open-mpi/ompi/issues/396 Regards --Nysal On Sat, Mar 28, 2015 at 12:41 AM, Hammond, Simon

Re: [OMPI users] segfault during MPI_Isend when transmitting GPU arrays between multiple GPUs

>-Original Message- >From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Lev Givon >Sent: Sunday, March 29, 2015 10:11 PM >To: Open MPI Users >Subject: Re: [OMPI users] segfault during MPI_Isend when transmitting GPU >arrays between multiple GPUs > >Received from Rolf vandeVaart

Re: [OMPI users] Connection problem on Linux cluster

On Mar 30, 2015, at 6:12 AM, LOTFIFAR F. wrote: > > Thank you very much guys. The problem has just been resolved. Great! > The problem was in the security groups rules when one create VMs. Openstack > pushes the security groups into iptables rules and it is not

Re: [OMPI users] Connection problem on Linux cluster

Thank you very much guys. The problem has just been resolved. The problem was in the security groups rules when one create VMs. Openstack pushes the security groups into iptables rules and it is not necessary to do anything with iptables or firewalls inside VMs. The processes were freezing and

Re: [OMPI users] MPI_THREAD_MULTIPLE and openib btl

Hi, openib btl does not support this thread model. You can use OMPI w/ mxm (-mca mtl mxm) and multiple thread mode lin 1.8 x series or (-mca pml yalla) in the master branch. M On Mon, Mar 30, 2015 at 9:09 AM, Subhra Mazumdar wrote: > Hi, > > Can MPI_THREAD_MULTIPLE

[OMPI users] MPI_THREAD_MULTIPLE and openib btl

Hi, Can MPI_THREAD_MULTIPLE and openib btl work together in open mpi 1.8.4? If so are there any command line options needed during run time? Thanks, Subhra.