XPRESS

XPRESS
Team Members	SNL, IU, LBNL, LSU, ORNL, UNC/RENCI, U. of Houston, U. of Oregon
PI	Lead PI (Institute)
Co-PIs	Co-PIs (Institute)
Website	team website
Download	{{{download}}}

eXascale Programming Environment and System Software or XPRESS

Team Members

• Sandia National Laboratories (SNL): LXK operating system, OpenX software architecture, Applications
• Indiana University (IU): Parallex Execution Model, OpenX software architecture, HPX‐4 runtime system, XPI
• Lawrence Berkeley National Laboratory (LBNL): Applications
• Louisiana State University (LSU): HPX‐4 runtime system
• Oak Ridge National Laboratory (ORNL): Applications
• University of Houston: Application migration
• University of North Carolina at Chapel Hill (UNC)/RENCI: XPI, HPX‐4, APEX
• University of Oregon: Performance instrumentation (APEX)

Goals, Objectives, and Approach

• Goals:
  • Enable exascale performance capability for current and future DOE applications
  • Develop and deliver a practical computing system software X‐stack, “OpenX”, for future practical DOE computing systems
  • Provide programming methods, environments, languages, and tools for effective means of expressing application and system software for portable exascale system execution

• Objectives:
  • Derive a dynamic adaptive introspective strategy for exploiting opportunities and addressing critical exascale technology challenges in the form of an abstract execution model
  • Devise a software architecture as a framework for future exascale system design and implementation
  • Implement core interrelated and interoperable components of the software architecture to realize a fully working and usable system
  • Test, evaluate, validate, and demonstrate correctness, performance, resiliency, and energy efficiency
  • Provide technology transfer through cooperative engagement of industry hardware and software vendors and national labs via documentation and training

• Approach:
  • Research, develop, and deploy a software stack to exploit the ParalleX execution model