<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">DEPARTMENT OF COMPUTER SCIENCE<br><br>UNIVERSITY OF CHICAGO<br><br>Date: Wednesday, February 27, 2008<br>Time: 2:30 p.m.<br>Place: Ryerson 251, 1100 E. 58th Street<br><br>--------------------------------------------------------<br><br>Speaker:<span class="Apple-tab-span" style="white-space: pre; "> </span>Daniel Nurmi<br><br>From:<span class="Apple-tab-span" style="white-space: pre; "> </span><span class="Apple-tab-span" style="white-space: pre; "> </span>University of California - Santa Barbara<br><br>Web Page:<span class="Apple-tab-span" style="white-space: pre; "> </span><a href="http://www.cs.ucsb.edu/~nurmi/">http://www.cs.ucsb.edu/~nurmi/</a><br><br>Title: Statistical Virtualization of Resources for High Performance <br>Computing<br><br>Abstract:<span class="Apple-tab-span" style="white-space: pre; "> </span> Users of high performance computing (HPC) systems generally <br>rely on concurrency to achieve performance. Modern users have the <br>ability to draw from a vast array of distributed HPC resources due to <br>the ever increasing quality of software and networks that connect <br>these resources. However, as the pool of resources available to users <br>grows, so does the level of resource heterogeneity and performance <br>response dynamism. In this talk, I will discuss a new technique that <br>uses statistical methodologies to manage resource performance <br>dynamism, and virtualization techniques to abstract away resource <br>heterogeneity. In particular, I will show how we have successfully <br>applied the idea of “statistical virtualization” to manage the <br>dynamism found in both provisioning delay and availability of HPC <br>resources, and have been able to provide our solution to the HPC <br>community as a generally applicable service. Finally, I will outline <br>the next steps that are required before a fully statistically <br>virtualized HPC resource can be realized, and discuss some of the <br>challenges we face in pursuit of this goal.<br><br>-------------------------------------------------------<br><br>Host:<span class="Apple-tab-span" style="white-space: pre; "> </span>Ian Foster</body></html>