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PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:1.0
BEGIN:VEVENT
DTSTART:20121114T203000Z
DTEND:20121114T210000Z
LOCATION:155-E
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: Remarkable observational advances have established a compelling=0Across-validated model of the Universe. Yet, two key pillars of this=0Amodel -- dark matter and dark energy -- remain=0Amysterious. Next-generation sky surveys will map billions of galaxies=0Ato explore the physics of the 'Dark Universe'. Science requirements=0Afor these surveys demand simulations at extreme scales; these will be=0Adelivered by the HACC (Hybrid/Hardware Accelerated Cosmology Code)=0Aframework. HACC's novel algorithmic structure allows tuning across=0Adiverse architectures, including accelerated and multi-core systems.=0A=0AHere we describe our efforts on the IBM BG/Q, attaining unprecedented=0Aperformance and efficiency (2.52 PFlops, more than 50% of peak on a=0Aprototype system, 4X expected for the final submission) at extreme=0Aproblem sizes, larger than any cosmological simulation yet performed=0A-- more than a trillion particles. HACC simulations at these scales=0Awill for the first time enable tracking individual galaxies over the=0Aentire volume of a cosmological survey.
SUMMARY:The Universe at Extreme Scale - Multi-Petaflop Sky Simulation on the BG/Q
PRIORITY:3
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