"By using the cell processors in the PS3s and the GPGPUs in unison, we've produced a system that does a very good job at handling this kind of [surveillance] information. We've developed the most powerful heterogeneous supercomputer in the world for a fraction of the cost of building it using individual chips and servers."
From the perspective of most of the supercomputing centers in the DoD, when millions or tens of millions of dollars are invested, you don't want to waste cycles. So these computers are run in what is called "batch mode." They keep these systems running at very high levels, all of the time, so the applications that use them are carefully managed and optimized.
On this computer, we're not tied to these metrics, mainly because it was so inexpensive. We do a lot of research and development on this system, so we start with only a few nodes, make sure [the software] works, and scale up from there. We have a lot of users [in the DoD] who, when they're actually developing code, have a tendency to hang a machine or two. When you do that, the computer becomes ineffective until we reboot it.
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