Try cpufreqd to manage power and be sure to set ondemand mode for balance. AMD box may consume less while the Intel north bridge can eat about 11-25W per chip. Memory will eat more than we expected when the load is light. I can't find some daemon to mange power consumed by RAM. Now, there are some transaction based approaches to run a cluster on demand, but I am afraid before fast wake up is ready, nothing can be practical. Regards, Li, Bo
----- Original Message ----- From: "Jon Bernard" <[EMAIL PROTECTED]> To: <beowulf@beowulf.org> Sent: Wednesday, July 11, 2007 6:22 AM Subject: [Beowulf] power usage, Intel 5160 vs. AMD 2216 > Two vendors recently bid on a cluster we're buying, and we've got > questions about their power estimates that I though I'd also put to the > list while we wait for the vendors to respond. > > Vendor A estimates that at peak load a compute node with two AMD 2216s, > 4 GB of 667 DDR2 RAM, a hard drive, and an IB board will draw 265 watts. > Vendor B estimates that such a node will draw 450 watts. > > Vendor B also estimates that a similar machine with two Intel 5160s will > draw 550 watts at peak load. > > Anybody have any actual measurements? > > Jon > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
