Mike Davis wrote:
That's excellent information. I was surpised by how close to the documented power use my number were. Knowing that even high disk use adds little power usage is important to though of us fighting the power/cooling wars.
Memory dimms are a major consumer. If you have the choice to make between smaller cheaper DIMMs using more slots, versus fewer larger (and more costly) DIMMs using fewer slots, the latter will usually consume less power. 8 GB can be 8x1GB dimms, 4x2GB dimms (or 2x 4GB dimms, though this is still not cost competitive even factoring in the power).
The 2GB dimms emit the same heat as the 1 GB dimms. So if you have a 1000 node cluster, and you use the larger (slightly more expensive) 2GB dimms vs the 1GB dimms, you will emit somewhat less heat. I haven't done the analysis, but I bet it would be close to a good tradeoff for TCO.
That and few parts means lower absolute number of failures, but that is another issue.
-- Joseph Landman, Ph.D Founder and CEO Scalable Informatics LLC, email: [EMAIL PROTECTED] web : http://www.scalableinformatics.com http://jackrabbit.scalableinformatics.com phone: +1 734 786 8423 fax : +1 866 888 3112 cell : +1 734 612 4615 _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
