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<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:14.0pt">Everyone<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Today, we discussed features and interactions of a potential Slurm Spank plug-in with a new Fabric Manager Framework. Key features would be to support ‘mini-fabrics’ where we would have endpoints dynamically
be correlated with physical, virtual, and container Slurm assignments. Potential benefits would include:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="margin-left:.75in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:14.0pt"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Beneficial support for server farms using VMs and containers.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:.75in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-size:14.0pt"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Power reduction in future HPC clusters<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">I will add this current Slurm Batch Use-Case description work up on the Working Group site repository for everyone to interact with over the weekend. We plan on starting back up on Friday 11 September.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Mike<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"> <o:p></o:p></span></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="636" style="width:477.0pt;margin-left:8.5pt;border-collapse:collapse">
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<p class="MsoNormal"><span style="font-size:14.0pt">Use Case Description<o:p></o:p></span></p>
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<td width="336" valign="top" style="width:252.05pt;border:solid windowtext 1.0pt;border-left:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal"><span style="font-size:14.0pt">Slurm Create Batch Run---Spank Plug-in<o:p></o:p></span></p>
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<td width="300" valign="top" style="width:224.95pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt;height:30.55pt">
<p class="MsoNormal"><span style="font-size:14.0pt">Actors<o:p></o:p></span></p>
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<td width="336" valign="top" style="width:252.05pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:30.55pt">
<p class="MsoNormal"><span style="font-size:14.0pt">Proprietary Fabric Manager, Administrator, Compute nodes, Fabric Endpoints, Ethernet Network<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:14.0pt">Description<o:p></o:p></span></p>
</td>
<td width="336" valign="top" style="width:252.05pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal"><span style="font-size:14.0pt">Build out Nodes and topology for an HPC Batch Run
<o:p></o:p></span></p>
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<td width="300" valign="top" style="width:224.95pt;border:solid windowtext 1.0pt;border-top:none;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal"><span style="font-size:14.0pt">Normal Flow<o:p></o:p></span></p>
</td>
<td width="336" valign="top" style="width:252.05pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt">
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Batch run submitted to Slurm<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Init Spank plugin<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Spank extension sets up Allocator context<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Set up logging----use the logging capabilities from the fabric provider.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Get node list values assigned by Slurm to run the batch job—node_list array<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Correlate compute node_list (physical or virtual) with fabric endpoints---physical, full virtual and para virtual, container<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Get service key from list of path choices between the endpoints<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Provide restrictions and features of batch limitations
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Get back necessary security keys, etc. from the fabric<o:p></o:p></span></p>
<p class="MsoNormal"><b><i><span style="font-size:14.0pt"><o:p> </o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-size:14.0pt">Slurm Requirements in/Fabric Manager Responses out---information transferred back and forth<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Run batch job<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in;text-indent:-.25in;mso-list:l1 level2 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:"Courier New""><span style="mso-list:Ignore">o<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">You are running on this physical mapping, identifier and port on the fabric.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Spank-Fini<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Exit job<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:14.0pt">Alternate Flow 1<o:p></o:p></span></p>
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<td width="336" valign="top" style="width:252.05pt;border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;border-right:solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:30.95pt">
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt"> Batch run submitted to Slurm<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Init Spank plugin<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Spank extension sets up Allocator context<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Set up logging for connection
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Get node list values—node_list array<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Correlate node_list with endpoints<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Provide routes to nodes<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Spank detects error<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Log error<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Report Errot<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2">
<![if !supportLists]><span style="font-size:14.0pt;font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:14.0pt">Exit job<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
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