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<p class="MsoNormal">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.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Jianxin<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif;mso-ligatures:none">From:</span></b><span style="font-family:"Calibri",sans-serif;mso-ligatures:none"> Libfabric-users <libfabric-users-bounces@lists.openfabrics.org>
<b>On Behalf Of </b>Niyaz Murshed<br>
<b>Sent:</b> Wednesday, August 21, 2024 8:00 AM<br>
<b>To:</b> libfabric-users@lists.openfabrics.org<br>
<b>Subject:</b> [libfabric-users] PD/MR sharing by multiple NIC<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hello, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is it possible to multiple NICs share the same PD/MR?<o:p></o:p></p>
<p class="MsoNormal">i.e., can I register a memory region that can be used by multiple NICs?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Niyaz<o:p></o:p></p>
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