Buying the Best Linux Performance?

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Douglas Eadline writes “Recently the following was posted to the Beowulf Mailing list:
I would like to know what server has the best performance for HPC systems between The Dell Poweredge 1950 (Xeon) And 1435SC (Opteron). Please send me suggestions…

The response was probably not what the poster expected. From his specifications, almost certainly the Opteron would work well for a variety of reasons. If you think you know
about buying Linux performance, learn why you should not believe the answer.”

Link: clustermonkey.net