Message boards : Number crunching : Credit w/ HADSM3 Mid-Holocene
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Send message Joined: 27 Jan 07 Posts: 300 Credit: 3,288,263 RAC: 26,370 |
I recently finished three models of various types: hadsm3mh_kl47_006000145 hadcm3istd_11n1_1920_160_05994120 hadam3h_c_70s31_2000_2000_5 Just out of curiosity, I calculated the radio of credits over CPU time (for my particular machine). I found a big advantage with the SM3MH models. A HadAM3 model took about the same time as an HadSM3MH model but I got double credit for the SM3 one. Anyone else getting a really good credit ratio on the new HADSM3MH models? My CPU is Intel Core2 Duo. How much of a difference could that be making? |
Send message Joined: 14 Jan 07 Posts: 52 Credit: 284,001 RAC: 0 |
Anyone else getting a really good credit ratio on the new HADSM3MH models? My CPU is Intel Core2 Duo. How much of a difference could that be making? Hi Yes also on a Core2 duo I find the same. The Hadam trickles bang on every 3 hours =24 points an hour The Hadsm3mh about every 3.5 hours =26.5 points an hour Not exactly milky way or FreeHal stuff :) but a nice little bonus. especially when Compared to work done on WCG =14.5 an hour. That credit system though is based on benchmarks by someone with very short arms and deep pockets who also may have had a hand in designing the ducks backside.But great science. :) Chris. |
Send message Joined: 12 Feb 08 Posts: 66 Credit: 4,877,652 RAC: 0 |
On my AMD X2 dual-core machine HadAM3 seems to be a very poor performer. hadSM3 = 24.5 credit/hour hadSM3mh = 25.0 hadAM3 = 18.5 hadCM3 = 22.7 |
Send message Joined: 5 Sep 04 Posts: 7629 Credit: 24,240,330 RAC: 0 |
hadam3 is a hi-res model, and takes longer at certain times, as it calculates the hi-res part. It may be more realistic to work out the credits per day, instead of per hour. |
Send message Joined: 12 Feb 08 Posts: 66 Credit: 4,877,652 RAC: 0 |
I calculated those credit/hour ratios from completed models, ie. total time taken divided by total credit granted. |
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