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PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:2.0
BEGIN:VEVENT
DTSTART:20141118T231500Z
DTEND:20141119T010000Z
LOCATION:New Orleans Theater Lobby
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: Simulations involving the edge of magnetically confined, fusion plasma are an extremely challenging task. The physics in this regime is particularly complex due to the presence of neutrals and the device wall. These simulations are extremely computationally intensive but are key to rapidly achieving thermonuclear breakeven on ITER-like machines. Space parallelization has hitherto been the most common approach to the best of our knowledge . Parallelizing time adds a new dimension to the parallelization thus significantly increasing computational speedup and resource utilization. This poster describes the application of the parareal algorithm to the edge-plasma code package – SOLPS. The algorithm requires a coarse (G) and a fine (F) solver – and optimizing G is a challenge. This work explores two approaches for G leading to computational gain >10 which is significant for simulations of this kind. It is also shown that an event-based approach to the algorithm greatly enhances performance.
SUMMARY:Greater than 10x Acceleration of Fusion Plasma Edge Simulations Using the Parareal Algorithm
PRIORITY:3
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