Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

Subject: Re: [OMPI devel] [OMPI svn-full] svn:open-mpi r29055 - in trunk/ompi/mca: btl btl/smcuda common/cuda pml/ob1
From: George Bosilca (bosilca_at_[hidden])
Date: 2013-08-22 11:32:25


I'm not very keen of seeing BTL modification tainting the PML. I would have expected support for IPC between GPU must be a BTL-level decision, no a special path in the PML.

Is there a reason IPC support cannot be hidden down in the SMCUDA BTL?

  Thanks,
    George.

On Aug 21, 2013, at 23:00 , svn-commit-mailer_at_[hidden] wrote:

> Author: rolfv (Rolf Vandevaart)
> Date: 2013-08-21 17:00:09 EDT (Wed, 21 Aug 2013)
> New Revision: 29055
> URL: https://svn.open-mpi.org/trac/ompi/changeset/29055
>
> Log:
> Fix support in smcuda btl so it does not blow up when there is no CUDA IPC support between two GPUs. Also make it so CUDA IPC support is added dynamically.
> Fixes ticket 3531.
>
> Added:
> trunk/ompi/mca/btl/smcuda/README
> Text files modified:
> trunk/ompi/mca/btl/btl.h | 2
> trunk/ompi/mca/btl/smcuda/README | 113 ++++++++++++++++++++++
> trunk/ompi/mca/btl/smcuda/btl_smcuda.c | 104 ++++++++++++++++++++
> trunk/ompi/mca/btl/smcuda/btl_smcuda.h | 28 +++++
> trunk/ompi/mca/btl/smcuda/btl_smcuda_component.c | 200 +++++++++++++++++++++++++++++++++++++++
> trunk/ompi/mca/btl/smcuda/btl_smcuda_endpoint.h | 5 +
> trunk/ompi/mca/common/cuda/common_cuda.c | 29 +++++
> trunk/ompi/mca/common/cuda/common_cuda.h | 3
> trunk/ompi/mca/pml/ob1/pml_ob1.c | 11 ++
> trunk/ompi/mca/pml/ob1/pml_ob1_cuda.c | 42 ++++++++
> trunk/ompi/mca/pml/ob1/pml_ob1_recvreq.c | 6
> 11 files changed, 535 insertions(+), 8 deletions(-)