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cluster:167 [2018/06/27 18:07]
hmeij07 [CPU vs GPU] 		cluster:167 [2018/06/28 12:27]
hmeij07 [CPU vs GPU]
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   * That period covers 600 hours of time   * That period covers 600 hours of time
   * Assume 99% utilization of cpu core or gpu device   * Assume 99% utilization of cpu core or gpu device
-  * Available time is measured per cpu core but by gpu device+  * Available time is measured per physical cpu core but by gpu device
   * There is no good/bad metric   * There is no good/bad metric
   * Never collated such data before   * Never collated such data before
Line 16: Line 16:
  
  
-^ Metric ^ CPU ^ Ratio ^ GPU ^ Notes ^+^ Metric ^ CPU ^ Ratio ^ GPU ^ Notes June 2018 ^
 | Device Count | 72  |  3:1  |  24 | cpu all intel, gpu all nvidia | | Device Count | 72  |  3:1  |  24 | cpu all intel, gpu all nvidia |
 | Core Count | 1,192 |  1:54  |  64,300 | physical only  |  | Core Count | 1,192 |  1:54  |  64,300 | physical only  | 
Line 24: Line 24:
 | Avail Hours | 715,200  |  50:1  |  14,400 | total cpu cores, total gpus | | Avail Hours | 715,200  |  50:1  |  14,400 | total cpu cores, total gpus |
 | Job Hours | 221,136  |  77:1  |  2,872 | cumulative hours of consumed usage | | Job Hours | 221,136  |  77:1  |  2,872 | cumulative hours of consumed usage |
-| Job Hours % | 31  |  6:1  |  5 | as a percentage...weeping... |+| Job Hours % | 31  |  6:1  |  5 | as a percentage |
 | Avail Hours2 | 561,600  |  39:1  |  14,400 | total cpu cores - hp12's 256 cores, total gpus | | Avail Hours2 | 561,600  |  39:1  |  14,400 | total cpu cores - hp12's 256 cores, total gpus |
 | Job Hours % | 39  |  8:1  |  5 | more realistic...hp12 rarely used in June18| | Job Hours % | 39  |  8:1  |  5 | more realistic...hp12 rarely used in June18|
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 |313,303|273,051|128,390|111,224|280,101|51,727|306,453|222,585|437,959|262,227|294,724| |313,303|273,051|128,390|111,224|280,101|51,727|306,453|222,585|437,959|262,227|294,724|
  
 +^ Metric ^ CPU ^ Ratio ^ GPU ^ Notes July 2017 ^
 +| Device Count | 72  |  4:1  |  20 | cpu all intel, gpu all nvidia |
 +| Core Count | 1,192 |  1:42  |  50,000 | physical only  | 
 +| Memory | 7,408  |  74:1  |  100 | GB |
 +| Teraflops | 38  |  1.7:1  |  23 | double precision, floating point, theoretical |
 +| Job Count | 12,798  |  18:1  |  722 | scheduled jobs irregardless of exit status |
 +| Avail Hours | 886,848  |  60:1  |  14,880 | total cpu cores, total gpus |
 +| Job Hours |  260,997  |  69:1  |  3,805 | cumulative hours of consumed usage |
 +| Job Hours % | 30  |  1:1  |  26 | as a percentage |
 +| Avail Hours2 | 696,384  |  47:1  |  14,880 | total cpu cores - hp12's 256 cores, total gpus |
 +| Job Hours % | 37  |  1.5:1  |  26 | more realistic...hp12 rarely used in June18|
 +
 +  * Some noise in this data with the inability to match start and end of job (~15% of records)
 +  * The assumption that ''hp12'' was barely used might not be correct
 +
 +Based on Jul17 we process about 60-70 times more CPU jobs than GPU jobs, that seems consistent with Jul18. The metric of Job Hours consumed versus Available Hours in %, the picture is probably more like Jul17...30-40% of CPU cycles are consumed and 25% of GPU cycles. We shall wait for Jul18 metrics.
 + 
  
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cluster/167.txt ยท Last modified: 2018/08/01 14:11 by hmeij07

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