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<p class="MsoNormal"><span style="font-size:11.0pt">Sean,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I’d like to suggest a minor multi-recv feature enhancement, if you agree I’ll open an issue.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I use a multi-recv buffer to receive metadata messages from clients. The first thing I have to do when I receive a message is memcpy it somewhere else so that it is 8-byte aligned, so that I don’t segfault
when referencing fields in the message.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">It would be nice if there was a fi_setopt() variable for multi-recv buffers, say FI_MIN_MSG_ALIGNMENT, which the application could set to 8 or whatever, guaranteeing that as libfabric lands new messages into
the multi-recv buffer that they would be aligned on 8-byte boundaries, so that an application could safely reference metadata messages in-place in the multi-recv buffer without segfaulting, avoiding constant memcpy calls.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Comments?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Kevan<o:p></o:p></span></p>
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