sponsored byIEEEACMThe International Conference for High Performance 
Computing, Networking, Storage and Analysis
FacebookTwitterGoogle PlusLinkedInYouTubeFlickr

SCHEDULE: NOV 16-21, 2014

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.

A Roofline Performance Analysis of an Algebraic Multigrid Solver

SESSION: Poster Reception

EVENT TYPE: Posters

TIME: 5:15PM - 7:00PM

AUTHOR(S):Alex Druinsky, Brian Austin, Xiaoye S. Li, Osni Marques, Eric Roman, Samuel Williams

ROOM:New Orleans Theater Lobby

ABSTRACT:

We present a performance analysis of a novel element-based algebraic multigrid
(AMGe) method combined with a robust coarse-grid solution technique based on
HSS low-rank sparse factorization. Our test datasets come from the SPE
Comparative Solution Project for oil reservoir simulations. The current
performance study focuses on one multicore node and on bound analysis using the
roofline technique. We found that keeping a small value of spectral tolerance
is most critical to achieve the best AMG solver performance. Our roofline bound
estimate is within 23% accuracy compared to the actual runtime on a Cray XC30
12-cores processor.

Chair/Author Details:

Alex Druinsky - Lawrence Berkeley National Laboratory

Brian Austin - Lawrence Berkeley National Laboratory

Xiaoye S. Li - Lawrence Berkeley National Laboratory

Osni Marques - Lawrence Berkeley National Laboratory

Eric Roman - Lawrence Berkeley National Laboratory

Samuel Williams - Lawrence Berkeley National Laboratory

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