June 16-20, 2013

Leipzig, Germany

Presentation Details

Name: BoF 15: Achieving Scalability to Millions of Heterogeneous Cores: Applications & Programming Models
Time: Wednesday, June 19, 2013
11:00 AM - 12:00 PM
Room:   Hall 4
CCL - Congress Center Leipzig
Breaks:10:30 AM - 11:30 AM Coffee Break
Speakers:   Sadaf R. Alam, CSCS
  Buddy Bland, ORNL
  Thomas Schulthess, CSCS
  Jack Wells, ORNL
Abstract:   The goals of this BOF is to share applications that have been able to target the Cray XK7 platform successfully at scale and to discuss how data locality aware programming models can potentially benefit from a heterogeneous multi-core and accelerator based node and memory architectures. Cray XK7 system at the Oak Ridge National Laboratory is that fastest supercomputing system on the Top500 list published in November 2012 and it is also among the top three most energy efficient platforms according to the Green500 list. Each compute node has a total of 2,704 heterogeneous cores (16 CPU cores and 14 x 192 SMX cores) and two distinct memory subsystems, CPU cache and DDR3 and GPU cache and GDDR5 memory hierarchies. In total, there are 18,688 such nodes. Concrete examples of data locality oriented programming approaches that are currently available on hybrid CPU and accelerator architectures will be presented to demonstrate how existing and emerging homogenous and heterogeneous multi-core applications can exploit these platforms.  
Program may be subject to changes.