Volume: 1 Late Winter 2007

"The unexamined program is not worth running."

"The unexamined program is not worth running."

Each node within a SiCortex system has its own central monitoring circuitry which can selectively sample more than 1200 activities around the chip. Because the data comes together in one place, it is possible to learn about dependencies as well as about individual event counts.

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The Payoff For Applications

In the early days of supercomputing there was a very direct and beneficial link of understanding between computational scientists and their hardware. The scientists knew their vector pipes and architects like Seymour Cray knew their inner loops. Each could help the other to maximize the answers per day from the machines.

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