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<p class="MsoNormal">I apologize for doing so, since we spent time at the last Board meeting…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I was once again reviewing the ANS slide from the Gold Deck. I think we inadvertently munged together some unrelated items in the second major bullet on the ANS slide.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here’s the text as it exists today on Slide 4 (see the attached Gold Deck)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ul style="margin-top:0in" type="square">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo3;vertical-align:baseline">
<span style="font-family:"Arial",sans-serif;color:black">The OFA is actively developing and supporting the following fabric technologies:</span><span style="font-size:12.0pt"><o:p></o:p></span>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="color:#399ACA;margin-left:0in;mso-list:l3 level2 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Kernel-level modules to support device level applications:</span><span style="font-size:10.0pt"><o:p></o:p></span>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Storage Technologies (Lustre™, SRP, NVMoF, etc)</span><span style="font-size:9.0pt"><o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Legacy Communication (Sockets)</span><span style="font-size:9.0pt"><o:p></o:p></span></li></ul>
</li><li class="MsoListParagraph" style="color:#399ACA;margin-left:0in;mso-list:l3 level2 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">User mode APIs for:</span><span style="font-size:10.0pt"><o:p></o:p></span>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Verbs API supporting InfiniBand-style networks</span><span style="font-size:9.0pt"><o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Parallel Message Passing (MPI, SHMEM)</span><span style="font-size:9.0pt"><o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">OpenFabrics Interfaces (OFI) providing a higher level semantic that is untethered to any particular network</span><span style="font-size:9.0pt"><o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">RDMA implementations</span><span style="font-size:9.0pt"><o:p></o:p></span></li></ul>
</li><li class="MsoListParagraph" style="color:#399ACA;margin-left:0in;mso-list:l3 level2 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Support for emerging and future networks</span><span style="font-size:10.0pt"><o:p></o:p></span>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Remote Persistent Memory</span><span style="font-size:9.0pt"><o:p></o:p></span></li></ul>
</li></ul>
</li></ul>
<p class="MsoNormal"><span style="font-size:6.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We were careful in our review of the introductory paragraph, but we may have missed some points in the body of the slide.<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo4">The first bullet refers to ‘device level applications’, but I think a more accurate statement would be ‘kernel level applications. I also recommend replacing the expression “kernel-level
modules” with “kernel modules”, which is accurate and concise.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo4">The major issue occurs in the second bullet referring to user mode. The four subbullets are an unfortunate amalgam of APIs, applications, and protocols. I think we have two choices:<o:p></o:p>
<ol style="margin-top:0in" start="1" type="a">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level2 lfo4">Focus on the classes of user mode applications we’re supporting (e.g. MPI, SHMEM …) or focus on the two families of APIs we support. I am opting for the latter since I think it would
be hard to characterize the user level applications.<o:p></o:p></li></ol>
</li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo4">I also added the word ‘usages’ to the third major bullet, since Remote Persistent Memory (RPM) is an emerging usage, not an emerging network.
<o:p></o:p></li></ol>
<p class="MsoNormal"><span style="font-size:6.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal">Here are my suggested edits:<o:p></o:p></p>
<ul style="margin-top:0in" type="square">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo3;vertical-align:baseline">
<span style="font-family:"Arial",sans-serif;color:black">The OFA is actively developing and supporting the following fabric technologies:</span><span style="font-size:12.0pt"><o:p></o:p></span>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="color:black;margin-left:0in;mso-list:l3 level2 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif">Kernel modules to support kernel level applications:
<o:p></o:p></span>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="color:black;margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif">Storage technologies (Lustre™, SRP, NVMoF, etc)<o:p></o:p></span></li><li class="MsoListParagraph" style="color:black;margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif">Legacy communication interfaces (Sockets)<o:p></o:p></span></li></ul>
</li><li class="MsoListParagraph" style="color:black;margin-left:0in;mso-list:l3 level2 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif">User mode APIs based on:
<o:p></o:p></span>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="color:black;margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif">Verbs supporting InfiniBand-style networks<o:p></o:p></span></li><li class="MsoListParagraph" style="color:black;margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif">OpenFabrics Interfaces (OFI) providing a higher level semantic that is network independent<o:p></o:p></span></li></ul>
</li><li class="MsoListParagraph" style="color:black;margin-left:0in;mso-list:l3 level2 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif">Emerging usages and future networks<o:p></o:p></span>
<ul style="margin-top:0in" type="disc">
<li class="MsoListParagraph" style="color:black;margin-left:0in;mso-list:l3 level3 lfo3;vertical-align:baseline">
<span style="font-size:9.0pt;font-family:"Arial",sans-serif">Remote Persistent Memory<o:p></o:p></span></li></ul>
</li></ul>
</li></ul>
<p class="MsoNormal" style="vertical-align:baseline"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="vertical-align:baseline"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">I’d like to put this on the agenda for next week’s XWG. Hopefully the last time around. Meanwhile, let’s discuss by email.<o:p></o:p></span></p>
<p class="MsoNormal" style="vertical-align:baseline"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="vertical-align:baseline"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Regards,<o:p></o:p></span></p>
<p class="MsoNormal" style="vertical-align:baseline"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">-Paul<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Advanced Technology Group<o:p></o:p></p>
<p class="MsoNormal">Cray, Inc.<o:p></o:p></p>
<p class="MsoNormal">Office – (503) 620 – 8757<o:p></o:p></p>
<p class="MsoNormal">Mobile – (503) 703 - 5382<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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