[Beowulf] Power consumption for opterons?
xyzzy at speakeasy.org
Tue Mar 9 21:08:45 EST 2004
On Tue, 9 Mar 2004, C J Kenneth Tan -- Heuchera Technologies wrote:
> What is the power consumption that you measured for your dual P3 and
System #1: Dual P3-500 Katmai, BX motherbaord, 512 MB PC100 ECC RAM, two
tulip NICs, cheap graphics card, 5400 RPM IDE drive, floppy drive, one case
fan, and a normal 250W ATX PS with a fan:
System #2: Nearly the same as system #1 more or less, but with dual P3-850
Coppermines and no case fan.
System #3: Dual Xeon 2.4 GHz 533FSB, E7501 chipset, 1 GB PC2100 ECC memory,
two 3Ware 8506-8 cards, a firewire card, onboard intel GB and FE, one Maxtor
6Y200P0 drive, 6 high speed case fans (rated 4.44W each), floppy drive, CD-ROM
drive, 550W PS with power factor correction (rated minimum 63% efficient),
SATA backplane, and 16 Maxtor 6Y200M0 SATA drives (rated 7.4W idle each) in
hotswap carriers. I measured system #3 with the SATA drives both installed
Unfortunately I don't have a dual Xeon with minimal extra hardware to test.
#1 Idle 42W 72 VA (.58 PF)
#1 Loaded 103W 157 VA (.66 PF)
#2 Idle 39W 67 VA (.58 PF)
#2 Loaded 96W 148 VA (.65 PF)
#3 Idle w/o RAID 162W 168 VA (.96 PF)
#3 Loaded w/o RAID 283W 289 VA (.98 PF)
#3 Idle w/ RAID 375W (stays at .98)
#3 Loaded w/ RAID 510W (stays at .98)
#3 Loaded w/RAID/bonnie 534W (stays at .98)
For the load, I used two processes of burnP6, part of cpuburn at
For a load breakdown by load type for system 1:
1 process 2 processes
burnP6 72WA 103W (exactly 30W per CPU over idle)
burnBX 87W 90W
stream 84W 85W
The stream and burnBX memory loaders use more power than a single CPU load
program, but two at once and the CPU loaders use more power.
To load system #3 with the disks on, I ran bonnie++ on all 16 drives.
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