[mpich-discuss] Question about non-blocking MPI - 3

teivml at gmail.com teivml at gmail.com
Thu Jan 7 06:08:11 CST 2021


Dear Hui Zhou,

Thank you for your response to this thread.
Could you give me some references on this issue?

It seems that the below environment setting is necessary.

MPICH_ASYNC_PROGRESS=1

Thank you for anything you can provide.
Best, Viet.



On Tue, Jan 5, 2021 at 5:59 AM Zhou, Hui <zhouh at anl.gov> wrote:

> You don’t need any special settings to use non-blocking MPI collectives in
> MPICH.
>
>
>
> --
> Hui Zhou
>
>
>
>
>
> *From: *viet via discuss <discuss at mpich.org>
> *Date: *Friday, December 4, 2020 at 7:12 AM
> *To: *discuss at mpich.org <discuss at mpich.org>
> *Cc: *teivml at gmail.com <teivml at gmail.com>
> *Subject: *[mpich-discuss] Question about non-blocking MPI - 3
>
> Hello everyone,
>
> What is the environment setting for the use of non-blocking MPI-3 *
> collectives in mpich3.3?
>
> In Intel MPI, the setting is as follows
>
> $ export I_MPI_ASYNC_PROGRESS=1
> $ export I_MPI_ASYNC_PROGRESS_PIN=<CPU list>
>
> Is there an equivalent setting in mpich3.3?
> Thank you,
> Viet.
>
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