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ISTI Colloquium: “Heterogeneous High-Performance Computing on Clusters with Many GPU Devices”

October 6, 2010
Time: 1:00 PM
Location: National Security Education Center (NSEC), Los Alamos Research Park, 3rd Floor, Suite 300, Room T301

Speaker:  Amnon Barak
Hebrew University of Jerusalem

Abstract:  Heterogeneous systems provide new opportunities to increase the performance of parallel applications and data intensive on clusters with CPU and GPU architectures. Currently, applications that utilize GPU devices run their device-executable code on local devices in their respective hosting-nodes. This talk describes a package for running OpenMP, C++ and unmodified OpenCL HPC applications on clusters with many GPU devices. This Many GPUs Package (MGP) includes an implementation of the OpenCL specifications and extensions of the OpenMP API that allow applications on one hosting-node to transparently utilize cluster-wide (CPUs and/or GPUs) devices. MGP provides means for reducing the complexity of programming and running parallel applications on clusters, including scheduling based on task dependencies and buffer management. The talk presents MGP and the performance of its internals.

This is joint work with Tal Ben-Nun, Ely Levy and Amnon Shiloh.

Biography:  Amnon Barak is Strauss Chair Professor of Computer Science and director of the Distributed Systems Laboratory in the Computer Science Department at the Hebrew University of Jerusalem. His research interests include operating systems for clusters, multi-clusters and GPU clusters - the MOSIX (http://www.MOSIX.org) project; On-line and gossip algorithms for dynamic resource management; Parallel and distributed High-Performance GPU Computing. During the academic year 2010 - 2011 Prof. Barak is spending a sabbatical year at UCSC, working with researchers at the SSRC.

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NOTE:  This colloquium is being telecast from UC Santa Cruz.  Seating is limited and will be on a first-come basis, first-serve basis.  We also have overflow rooms available on the 2nd Floor, Suite 201, Rooms T226 (Room Capacity 17) and T220 (Room Capacity 14) and also at TA-3, Bldg. 207, Study Center, 1st Floor, Room 115 (Room Capacity 20).

For further information please contact Josephine Olivas, jojo@lanl.gov, 663-5725.

Hosted by the Information Science and Technology Institute (ISTI) and the Institute for Scalable Scientific Data Management (ISSDM)



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