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Networking

Ask Slashdot: Best Use For a New Supercomputing Cluster? 387

Supp0rtLinux writes "In about 2 weeks time I will be receiving everything necessary to build the largest x86_64-based supercomputer on the east coast of the U.S. (at least until someone takes the title away from us). It's spec'ed to start with 1200 dual-socket six-core servers. We primarily do life-science/health/biology related tasks on our existing (fairly small) HPC. We intend to continue this usage, but to also open it up for new uses (energy comes to mind). Additionally, we'd like to lease access to recoup some of our costs. So, what's the best Linux distro for something of this size and scale? Any that include a chargeback option/module? Additionally, due to cost contracts, we have to choose either InfiniBand or 10Gb Ethernet for the backend: which would Slashdot readers go with if they had to choose? Either way, all nodes will have four 1Gbps Ethernet ports. Finally, all nodes include only a basic onboard GPU. We intend to put powerful GPUs into the PCI-e slot and open up the new HPC for GPU related crunching. Any suggestions on the most powerful Linux friendly PCI-e GPU available?"
AMD

FPS Benchmarks No More? New Methods Reveal Deeper GPU Issues 125

crookedvulture writes "Graphics hardware reviews have long used frames per second to measure performance. The thing is, an awful lot of frames are generated in a single second. Calculating the FPS can mask brief moments of perceptible stuttering that only a closer inspection of individual frame times can quantify. This article explores the subject in much greater detail. Along the way, it also effectively illustrates the 'micro-stuttering' attributed to multi-GPU solutions like SLI and CrossFire. AMD and Nvidia both concede that stuttering is a real problem for modern graphics hardware, and benchmarking methods may need to change to properly take it into account."

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