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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">We do have some hardware designers in the group (me among them, although I’m not a memory controller designer). But the problem is that we probably should
not be designing an architecture that is dependent on any particular hardware implementation. That is definitely true for the memory controller design, since those are very much specific to any particular vendor. It’s somewhat less true for PCIe designs
since the PCIe semantics are driven by an industry standard specification. We are not insulated from a decision by the PCIe SIG to change the semantics, but that seems a lot less risky than relying on the memory controller design.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">-Paul<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> ofiwg-bounces@lists.openfabrics.org [mailto:ofiwg-bounces@lists.openfabrics.org]
<b>On Behalf Of </b>Geoffrey Paulsen<br>
<b>Sent:</b> Tuesday, June 24, 2014 10:08 AM<br>
<b>To:</b> ofiwg@lists.openfabrics.org<br>
<b>Subject:</b> [ofiwg] packet ordering considerations.<o:p></o:p></span></p>
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<p><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Are there any PCI experts or memory controller experts in the working group? As an MPI engineer, I don't know enough about ordering considerations at the lower physical layer to comment intelligently
about this topic. As things become more asyncronus, we don't want to be fighting the memory controllers, or the busses on ordering issues.</span><span style="font-size:7.5pt;font-family:"Arial","sans-serif""><br>
</span><br>
<span style="font-size:7.5pt;font-family:"Arial","sans-serif"">Regards,</span><br>
<br>
<b><span style="font-family:"Arial","sans-serif";color:#888888">Geoffrey (Geoff) Paulsen</span></b><span style="font-size:7.5pt;font-family:"Arial","sans-serif""><br>
Software Engineer - Platform MPI</span> <o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#466BB0">Phone:</span></b><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#5F5F5F"> 1-720-349-2832</span><b><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#466BB0"><br>
E-mail:</span></b><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#5F5F5F"> </span><a href="mailto:gpaulsen@us.ibm.com" target="_blank"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#5F5F5F">gpaulsen@us.ibm.com</span></a><o:p></o:p></p>
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