[libfabric-users] PD/MR sharing by multiple NIC

[Xiong, Jianxin]

It depends on the provider. Since MR is domain level object, in order to share the MR, the endpoints must share the same domain. Some providers (e.g. verbs) map domain to a specific nic and thus can't share MR among nics. Other providers (e.g. psm3) have domain as pure software entity and can have multiple NICs under the same domain.

Jianxin

From: Libfabric-users <libfabric-users-bounces at lists.openfabrics.org> On Behalf Of Niyaz Murshed
Sent: Wednesday, August 21, 2024 8:00 AM
To: libfabric-users at lists.openfabrics.org
Subject: [libfabric-users] PD/MR sharing by multiple NIC

Hello,

Is it possible to multiple NICs share the same PD/MR?
i.e., can I register a memory region that can be used by multiple NICs?

Regards,
Niyaz
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