Compilers and More: A GPU and Accelerator Programming Model

December 9, 2008

If you are familiar with current approaches to programming accelerators, you are either discomforted by the complexities, or excited at the levels of control you can get. Can we come up with a different model of GPU and accelerator programming -- a model that allows HPC programmers to focus on domain science instead of on computer science? Read more…

By Michael Wolfe

HPC Clouds — Alto Cirrus or Cumulonimbus

November 21, 2008

The "cloud" model of exporting user workload and services to remote, distributed and virtual environments is emerging as a powerful computing paradigm. Yet, one domain that challenges this model in its characteristics and needs is high performance computing. Read more…

By Thomas Sterling and Dylan Stark

OpenCL Update

November 21, 2008

OpenCL (the Open Computing Language) is under development by the Khronos Group as an open, royalty-free standard for parallel programming of CPUs, GPUs, the Cell and other parallel processors. An update of the effort was presented at SC08 on Nov. 17. Read more…

By Michael D. McCool and Stefanus Du Toit

Live From the Show Floor: A Conversation with SiCortex Chief Engineer Matt Reilly

November 20, 2008

John West had a great conversation with Matt Reilly, chief engineer for SiCortex. Matt talked about what's going on with the SiCortex's low power, high density compute platform, and then he discussed the need for the computer science curriculum to include parallelism. Read more…

By Tiffany Trader (HPC)

Incoming: 10 Gigabit Ethernet for HPC

November 20, 2008

InfiniBand has been a comfort zone for those tightly-coupled HPC applications that can't live without their addiction to low latency and high speed. If your application is a science experiment with good funding and no firm schedule, that's OK. If your application involves business, deadlines, and ROI, it's time to break out of that comfort zone and acquaint yourself with 10 Gigabit Ethernet. Read more…

By Dan Tuchler

The Search for Stable Storage

November 19, 2008

A team led by Thomas Schulthess of Oak Ridge National Laboratory has broken the petaflop barrier with a supercomputing application likely to accelerate the revolution in magnetic storage. Using ORNL's upgraded Cray XT Jaguar supercomputer, the team was able to achieve a sustained performance of 1.05 petaflops for an application that simulates the behavior of electron systems. Read more…

By Leo Williams

Closing the Parallelism Gap with the Chapel Language

November 19, 2008

Chapel is a high-level parallel programming language being developed by Cray for DARPA's High Productivity Computing Systems (HPCS) program. We asked Brad Chamberlain, the technical lead for the Chapel language project, to give us an overview of the language, the rational behind its design, and an update on the current state of the Chapel effort. Read more…

By Michael Feldman

Live From the Show Floor: Wednesday

November 19, 2008

John West talks with John Lee, vice president of advanced technology solutions for Appro; Steve Cumings, director of infrastructure for HP's Scalable Computing and Infrastructure Group; Morgan Littlewood, vice president of Violin Memory; Jim Falgout, chief technologist for Pervasive's DataRush; and Dave Ellis, director of HPC architecture for LSI, on the SC08 show floor. We also present our second Two-Option Audio Quiz. Read more…

By Tiffany Trader (HPC)

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