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<p class="MsoNormal" style="line-height:15.0pt;background:white"><b><i><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#333333;mso-ligatures:none">FI_THREAD_DOMAIN</span></i></b><b><span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#333333;mso-ligatures:none"><o:p></o:p></span></b></p>
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<span style="font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#333333;mso-ligatures:none">A domain serialization model requires applications to serialize access to all objects belonging to a domain.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My immediate take on this definition is that if I am multi-threading I have to have a single lock that I use to access any object belonging to a fi_domain instance; which seems like a terrible idea for multi-threading. However, in Jianxin’s
2.0 API update at the workshop <a href="https://www.openfabrics.org/wp-content/uploads/2024-workshop/2024-workshop-presentations/session-1.pdf">
https://www.openfabrics.org/wp-content/uploads/2024-workshop/2024-workshop-presentations/session-1.pdf</a>, it says: “Recommend FI_THREAD_DOMAIN for multi-thread app with regular endpoint.” If my interpretation of the meaning of FI_THREAD_DOMAIN is correct,
then the only way this makes sense to me is for the expectation to be that a unique fi_domain instance and endpoint be created for each thread. Is this correct or is there something I’m misunderstanding? If it is correct, then there are some painful implications
for multi-threading RMA.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">John Byrne<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p></o:p></p>
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