The SuperN-project: Porting and optimizing VERTEX-PROMETHEUS on the cray XE6 at HLRS for three-dimensional simulations of core-collapse supernova explosions of massive stars

Florian Hanke, Andreas Marek, B. Müller, H. Th Janka

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review

Abstract

Supernova explosions are among the most powerful cosmic events, whose physical mechanism and consequences are still incompletely understood. We have developed a fully MPI-OpenMP parallelized version of our VERTEX-PROMETHEUS code in order to perform three-dimensional simulations of stellar core-collapse and explosion on Tier-0 systems such as Hermit at HLRS. Tests on up to 64,000 cores have shown excellent scaling behavior. In this report we present the system of equations and the algorithm for its solution that are employed in our code VERTEX-PROMETHEUS. We also discuss the parallelization of VERTEX-PROMETHEUS and present our progress in porting, optimizing, and performing production runs on a large variety of machines, starting from vector machines and reaching to modern systems. In particular the results of our efforts to achieve good parallel scaling on the new Cray XE6 at HLRS Stuttgart are highlighted.

Original languageEnglish
Title of host publicationHigh Performance Computing in Science and Engineering '12
Subtitle of host publicationTransactions of the High Performance Computing Center, Stuttgart (HLRS) 2012
PublisherSpringer
Pages81-93
Number of pages13
ISBN (Electronic)9783642333743
ISBN (Print)9783642333736
DOIs
Publication statusPublished - 1 Dec 2013
Externally publishedYes
EventResults and Review Workshop on High Performance Computing in Science and Engineering 2012 - Stuttgart, Germany
Duration: 10 Oct 201211 Oct 2012
Conference number: 15th

Conference

ConferenceResults and Review Workshop on High Performance Computing in Science and Engineering 2012
Abbreviated titleHLRS 2012
CountryGermany
CityStuttgart
Period10/10/1211/10/12

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