Impact of Quad-Core Chips on Clusters

Christopher Lazou writes on the recent Machine Evaluation Workshop in the UK:
“The 18th Machine Evaluation Workshop highlighted some very positive trends in multicore chip developments. For example, quad-core processors in general are more cost-effective than dual-core processors, but when memory bandwidth is an issue, the performance starts to unravel. There is an impact from message passing latency. For large clusters, there are still some concerns. Reliability is not robust enough and availability often dips below 90 percent. Some sites need to reboot the whole system as often as twice a week.” Full Story

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About Rich
FlexRex began his life as a cartoon character I created a Sun Microsystems. As the world's first "fictional blogger," he appeared in numerous parody films that made fun of the whole work-from-home thing. Somewhere along the line, the Sun IT department adopted FlexRex as their spokesman in a half-dozen security awareness films for employees. So when I left Sun recently, I started FlexRex Communications, a Marketing company in Portland, Oregon.

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