My post from 2/22 quoted below on how I used C. Crane's Kill-A-Watt meter <http://www.ccrane.com/kill-a-watt-accessory.aspx> to track power use.
-Marc -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rick Pali Sent: Friday, April 08, 2005 2:13 PM To: The Great Internet Mersenne Prime Search list Subject: [Prime] Prime Power I was in the hardware store today, and a nifty product caught my eye. It's a device you plug into the electrical outlet. It's got a receptacle of its own into which you plug an appliance. It displays the voltage, current, wattage, peak wattage use, peak current drawn, KWh, a timer, and even the cost of the electricity used since the timer started. It was an impulse buy, but I also have remarkably few conveniently placed outlets in my apartment so this will be useful in determining how much load I'm placing on each outlet. My computer (a 1.5GHz P4) with two hard drives and a DVD burner, monitor, and cable modem, uses an average of 160 Watts. That's without Prime95 running. Start up our favourite distributed computing application and power use jumps to just a few Watts over 200. I know work is being done with consequent heat generated, and this work takes power, but I never really had any idea how much electricity was being used by Prime95's execution. Interesting. Rick. -+-- [EMAIL PROTECTED] http://www.alienshore.com/seeking/ _______________________________________________ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marc Getty Sent: Tuesday, February 22, 2005 11:21 PM To: 'The Great Internet Mersenne Prime Search list' Subject: RE: [Prime] hot CPU! Sorry to dig up a dead thread, but I was away on vacation last week and could not respond in a proper manner via BlackBerry. I've prepared a spreadsheet detailing just how much power a modern Dell is using at various times. See: <http://getty.net/gimps/dells.xls> for power use on a Dell OptiPlex GX 270 small form factor computer at 3.2 GHz and 1 GB of RAM. Unfortunately due primarily to the noise of the fans, and partially due to the heat, I have not been able to deploy a GIMPS client in our computer labs. In an amphitheater with 102 machines, all on top of the tables, it gets so loud with PrimeNT running that you can't have a conversation at a normal level. I'm close to deploying a system that will start the prime service shortly after the labs close and stop the prime service shortly before the labs open to avoid the noise problem. Running PrimeNT at 104.5 hours a week on 350 2.8+ GHz machines is better then not running it at all! -Marc ------------------------------------------ Marc Getty [EMAIL PROTECTED] Instructional & Information Technology Temple University, College of Liberal Arts Cell: 215-962-5603 Fax: 215-204-3731 ------------------------------------------ _______________________________________________ Prime mailing list [email protected] http://hogranch.com/mailman/listinfo/prime
