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<div>Hi Starcluster</div>
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<div>Do anyone have advice on what fabric to use when running on AWS?</div>
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<div>I know the interconnect is supposed to be 10-gigE but my model is more dependent on latency than throughput.</div>
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<div>I have had to use the Intel Cluster Compiler Suite rather than the built in OpenMPI. Hoping to resolve those issues and compare the two – I am interested to see the performance differences…</div>
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<div>Currently the model actually has a negative performance curve as I add processors past a single node.</div>
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<div>Model performance on running on Amazon…</div>
<div>C3.8Xlarge - 1 instance, 32 cores</div>
<div> ! IINT <span class="Apple-tab-span" style="white-space:pre"></span>SIMTIME(UTC) <span class="Apple-tab-span" style="white-space:pre">
</span>FINISH IN <span class="Apple-tab-span" style="white-space:pre"></span>SECS/IT PERCENT COMPLETE </div>
<div>!8396282 2014-03-18T00:18:02.000000 0000:07:54:19 0.1103 | |</div>
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<div>C3.8Xlarge - 2 instance, 64 cores</div>
<div> !8395221 2014-03-18T00:00:21.000000 0000:20:27:58 0.2843 | |</div>
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<div>C3.8Xlarge - 3 instance, 96 cores</div>
<div>!8395273 2014-03-18T00:01:13.000000 0007:18:33:19 2.5918 | |</div>
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<b><span lang="EN-GB" style="font-size: 8pt; line-height: 12px; color: navy; font-family: Arial, sans-serif; ">David</span></b><b><span lang="EN-GB" style="font-size: 8pt; line-height: 12px; color: navy; font-family: Arial, sans-serif; "> Stuebe</span></b></p>
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<b><span lang="EN-GB" style="font-size: 8pt; line-height: 12px; color: navy; font-family: Arial, sans-serif; ">Scientist & Software Engineer </span></b><span class="Apple-style-span" style="line-height: normal; "><b><span lang="EN-GB" style="font-size: 8pt; color: navy; font-family: Arial, sans-serif; ">–
RPS ASA</span></b></span><b><span lang="EN-GB" style="font-size: 8pt; line-height: 12px; color: navy; font-family: Arial, sans-serif; "><br>
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</span></b><span lang="EN-GB" style="font-size: 8pt; line-height: 12px; color: black; font-family: Arial, sans-serif; ">55 Village Square Drive <br>
South Kingstown, RI 02879-8248<br>
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</span><b><span lang="EN-GB" style="font-size: 8pt; line-height: 12px; color: navy; font-family: Arial, sans-serif; ">Tel: </span></b><span lang="EN-GB" style="font-size: 8pt; line-height: 12px; color: black; font-family: Arial, sans-serif; ">+1 (401) 789-6224</span></p>
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<span lang="EN-GB"><b style="color: rgb(0, 0, 0); font-family: Arial, sans-serif; font-size: 8pt; line-height: 12px; "><span style="color: navy; ">Email: </span></b><span style="font-size: 8pt; line-height: 12px; color: navy; font-family: Arial, sans-serif; "><a href="mailto:David.Stuebe@rpsgroup.com" style="color: blue; text-decoration: underline; ">David.Stuebe@rpsgroup.com</a></span></span><span style="color: rgb(0, 0, 0); font-size: 12pt; line-height: 18px; font-family: 'Times New Roman', serif; "><br>
</span><b style="color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-size: 11pt; line-height: 17px; "><span lang="EN-GB" style="font-size: 8pt; line-height: 12px; color: navy; font-family: Arial, sans-serif; ">www:</span></b><span lang="EN-GB" style="font-size: 8pt; line-height: 12px; color: navy; font-family: Arial, sans-serif; "> <a href="http://www.asascience.com/" style="color: blue; text-decoration: underline; ">asascience.com</a> | <a href="http://www.rpsgroup.com/" style="color: blue; text-decoration: underline; ">rpsgroup.com</a></span><span style="color: rgb(0, 0, 0); font-size: 12pt; line-height: 18px; font-family: 'Times New Roman', serif; "><br>
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</span><i style="color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-size: 11pt; line-height: 17px; "><span style="font-size: 8pt; line-height: 12px; color: black; font-family: Arial, sans-serif; "><o:p></o:p></span></i></p>
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<i><span style="font-size: 8pt; line-height: 12px; color: black; font-family: Arial, sans-serif; ">A member of the RPS Group plc</span></i></p>
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