[mvapich-discuss] Support for non-blocking collectives with GPUDirect aSync feature

Marius Brehler marius.brehler at tu-dortmund.de
Fri Oct 20 16:29:50 EDT 2017


Hi,

thanks for the quick reply. Is the GDS feature not implemented for
non-blocking collectives or is it not available at all (including Isend
and Irecv) in the current GDR release?

Thanks

Marius

On 10/20/2017 10:03 PM, Panda, Dhabaleswar wrote:
> Thanks for your interest in the GDS feature. It is not yet available.
>
> Thanks,
>
> DK
> ________________________________________
> From: mvapich-discuss-bounces at cse.ohio-state.edu on behalf of Marius Brehler [marius.brehler at tu-dortmund.de]
> Sent: Friday, October 20, 2017 3:50 PM
> To: mvapich-discuss at cse.ohio-state.edu
> Subject: [mvapich-discuss] Support for non-blocking collectives with    GPUDirect aSync feature
>
> Hi,
>
> as presented at GTC 2017 in the talk "MVAPICH2-GDR: Pushing the Frontier
> of HPC and Deep Learning", there is initial support for the GPUDirect
> aSync (GDS) feature in MVAPICH2-GDR. The slides show how to call
> MPI_Isend, and present results for Send and Recv.
>
> Is this feature already available for non-blocking collectives like
> MPI_Ibcast?
>
> Best Regards
>
> Marius
> --
> M.Sc. Marius Brehler
> Research Associate/Ph.D. Candidate
>
> TU Dortmund University
> Chair for High Frequency Technology
> 44227 Dortmund, Germany
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Unbeschadet der Korrespondenz per E-Mail, sind unsere Erklärungen ausschließlich final rechtsverbindlich, wenn sie in herkömmlicher Schriftform (mit eigenhändiger Unterschrift) oder durch Übermittlung eines solchen Schriftstücks per Telefax erfolgen.

Important note: The information included in this e-mail is confidential. It is solely intended for the recipient. If you are not the intended recipient of this e-mail please contact the sender and delete this message. Thank you. Without prejudice of e-mail correspondence, our statements are only legally binding when they are made in the conventional written form (with personal signature) or when such documents are sent by fax.



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