This, That, and HPC Things

Published on Thursday, 09 April 2009 04:55
Written by Douglas Eadline
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A few tidbits that may help brighten your HPC day

A few links that you may find interesting. First, Dr. Dobbs is running an article on the new Larrabee API. If you have not heard of Larrabee, it as a new architecture from Intel aimed at the GPU market. The design involves many x86 cores (Pentium P54C) and vector processing. All cores will be cache coherent. It is a kind of a cross between a multi-core processor and GP-GPU from NVidia or AMD/ATI. Of course HPC guys would never use a GPU for crunching numbers.

While we are talking about number crunching GP-GPU's, NVidia has released CUDA version 2.2 with the CUDA GDB style debugger. That is right, for those rare programmers that might just need a debugger, a CUDA debugger with GDB interface is available with all those features you know an love including breakpoints, watch variables, inspect state, etc., as well as additional functions for CUDA-specific features. The is also an update of the Visual Profiler for the GPU that supports, among other things, full measurement of memory bandwidth within a kernel. There are some other improvements as well.

Finally, our very own Jeff Layton has created a Nehalem Memory Cheat Sheet. Thanks to Dell for helping Jeff create this and thanks to Jeff for providing good clear information at a product launch.

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