BEGIN:VCALENDAR PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN VERSION:1.0 BEGIN:VEVENT DTSTART:20141118T213000Z DTEND:20141118T230000Z LOCATION:383-84-85 DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: HPC faces a dramatic challenge between achieving high performance for applications and the ease with which such codes can be developed. Productivity is a notional quality measure that interrelates the two along with associated costs to provide a single unifying metrics. Although presently ill defined, productivity is essential in delivering effective computing environments, especially as HPC moves towards the exascale era. This panel will highlight the tensions among performance, usability, and cost (including energy) of extreme-scale computing and discuss the implications of the tradeoffs to drive progress toward superior computing methods and capabilities. Experts across diverse fields will consider what is required to make future systems much easier to use and for a wider range of problems even as scaling increases by orders of magnitude. One key issue is legacy code and retaining their investment for future system classes. Audience engagement will be driven by questions directed to attendees. SUMMARY:HPC Productivity or Performance: Choose One PRIORITY:3 END:VEVENT END:VCALENDAR