FWIW the openib btl is mostly thread safe at this point. There is an
outstanding bug in the connection manager (udcm) that causes an abort in
debug builds but it should work in optimized builds. I have a patch in
https://github.com/open-mpi/ompi/pull/826 . You will need to specify
-mca btl_base_thread_multiple_override true on the command line to get
the openib btl enabled for thread multiple.

-Nathan

On Fri, Aug 21, 2015 at 02:57:46PM -0700, Subhra Mazumdar wrote:
>    My processes are multi-threaded so can't use openib. Any idea if it is
>    going to be supported with yalla in future?
> 
>    Thanks,
>    Subhra
>    On Fri, Aug 21, 2015 at 6:53 AM, Rolf vandeVaart <rvandeva...@nvidia.com>
>    wrote:
> 
>      No, it is not.  You have to use pml ob1 which will pull in the smcuda
>      and openib BTLs which have CUDA-aware built into them.
> 
>      Rolf
> 
>       
> 
>      From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Subhra
>      Mazumdar
>      Sent: Friday, August 21, 2015 12:18 AM
>      To: Open MPI Users
>      Subject: [OMPI users] cuda aware mpi
> 
>       
> 
>      Hi,
> 
>       
> 
>      Is cuda aware mpi supported with pml yalla?
> 
>       
> 
>      Thanks,
> 
>      Subhra
> 
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