SC is the International Conference for
High Performance Computing, Networking,
Storage and Analysis

SCHEDULE: NOV 12-18, 2011

When viewing the Technical Program schedule, on the far righthand side is a column labeled "PLANNER." Use this planner to build your own schedule. Once you select an event and want to add it to your personal schedule, just click on the calendar icon of your choice (outlook calendar, ical calendar or google calendar) and that event will be stored there. As you select events in this manner, you will have your own schedule to guide you through the week.

You can also create your personal schedule on the SC11 app (Boopsie) on your smartphone. Simply select a session you want to attend and "add" it to your plan. Continue in this manner until you have created your own personal schedule. All your events will appear under "My Event Planner" on your smartphone.

A `Cool' Load Balancer for Parallel Applications

SESSION: Power Optimization


TIME: 2:00PM - 2:30PM

AUTHOR(S):Osman Sarood, Laxmikant Kale


Meeting the power requirements of huge exascale machines of the future would become a major challenge. In this paper, we focus on minimizing cooling power and propose a technique that uses a combination of DVFS and temperature aware load balancing to constrain core temperatures as well as save cooling energy. Our scheme is designed specifically to suit tightly coupled parallel applications. The temperature control comes at the cost of increased execution time, which we try to minimize. We experiment with three applications (with different power utilization profiles) running on a 128-core (32-node) cluster with a dedicated air conditioning unit. We calibrate the efficacy of our scheme based on three metrics: ability to control average core temperatures thereby avoiding hot spot occurrence, timing penalty minimization, and cooling energy savings. Our results show cooling energy savings of up to 57% with timing penalties mostly in the 2 to 20% range.

Chair/Author Details:

Osman Sarood - University of Illinois at Urbana-Champaign

Laxmikant Kale - University of Illinois at Urbana-Champaign

Add to iCal  Click here to download .ics calendar file

Add to Outlook  Click here to download .vcs calendar file

Add to Google Calendarss  Click here to add event to your Google Calendar

The full paper can be found in the ACM Digital Library

   Sponsors    ACM    IEEE