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.
Hardware, Software Co-design for Energy Efficient Seismic Modeling
EVENT TYPE: Paper
TIME: 4:00PM - 4:30PM
AUTHOR(S):Jens Krueger, David Donofrio, John Shalf, Samuel Williams, Leonid Oliker, Marghoob Mohiyuddin, Franz-Josef Pfreundt
ABSTRACT: Reverse Time Migration (RTM) has become the standard for high-quality imaging in the seismic industry. RTM relies on PDE solutions using stencils that are 8th order or larger, which require large-scale HPC clusters to meet the computational demands. However, the rising power consumption of conventional cluster technology has prompted investigation of architectural alternatives that offer higher computational efficiency. In this work, we compare the performance and energy efficiency of three architectural alternatives -- the Intel Nehalem X5530 multicore processor, the NVIDIA Tesla C2050 GPU, and a manycore chip design called "Green Wave." We have developed an FPGA-accelerated architectural simulation platform to accurately model the power and performance of the Green Wave design. Results show that across highly tuned higher order RTM stencils, co-designed Green Wave implementation can offer up to 3.5x and 10x node power efficiency improvement compared with the GPU and Nehalem platforms.
Jens Krueger - Fraunhofer ITWM
David Donofrio - Lawrence Berkeley National Laboratory
John Shalf - Lawrence Berkeley National Laboratory
Samuel Williams - Lawrence Berkeley National Laboratory
Leonid Oliker - Lawrence Berkeley National Laboratory