[mpich-discuss] Zero-copy non-contiguous types

[Pascal Boeschoten]

Hello,

Thanks. Besides compiling MPICH with xpmem support, are there any
particular configuration options or environment variables needed for this
to happen?

Kind regards,
Pascal Boeschoten

On Mon, 29 Apr 2024 at 15:54, Zhou, Hui <zhouh at anl.gov> wrote:

> Yes, intra-node ipc including non-contig datatypes is supported via xpmem.
>
> --
> Hui Zhou
> ------------------------------
> *From:* Pascal Boeschoten via discuss <discuss at mpich.org>
> *Sent:* Monday, April 29, 2024 2:37 AM
> *To:* discuss at mpich.org <discuss at mpich.org>
> *Cc:* Pascal Boeschoten <pascal.boeschoten at hapteon.com>
> *Subject:* [mpich-discuss] Zero-copy non-contiguous types
>
> Hello, Does MPICH support zero-copy intra-node communication for
> non-contiguous datatypes? Thanks, Pascal Boeschoten ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍
> ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍
> ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍
> ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍
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> Hello,
>
> Does MPICH support zero-copy intra-node communication for non-contiguous
> datatypes?
>
> Thanks,
> Pascal Boeschoten
>
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