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cluster:167 [2018/06/26 16:58] hmeij07 [CPU vs GPU] |
cluster:167 [2018/06/27 17:32] hmeij07 [CPU vs GPU] |
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So the question was raised what does our usage look like between CPU and GPU devices? I have no idea what the appropriate metrics would be but lets start with comparing the hardware deployed. We'll also need to make some assumptions | So the question was raised what does our usage look like between CPU and GPU devices? I have no idea what the appropriate metrics would be but lets start with comparing the hardware deployed. We'll also need to make some assumptions | ||
- | * Data is period | + | * Data is period |
- | * That period | + | * Maybe build monthly script if this turns out to be usable info |
+ | * That period | ||
* 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 cpu core but by gpu device | ||
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* Never collated such data before | * Never collated such data before | ||
* The GPU usage is based on detecting gpu reservations (gpu= flag) | * The GPU usage is based on detecting gpu reservations (gpu= flag) | ||
- | * | + | |
^ Metric ^ CPU ^ Ratio ^ GPU ^ Notes ^ | ^ Metric ^ CPU ^ Ratio ^ GPU ^ Notes ^ | ||
- | | 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 | 1,712 | 1:38 | 64,300 | physical | + | | Core Count | 1,192 | 1:54 |
- | | Avail Hours | 7,272,576 | 71:1 | 101,952 | total cpu cores, total gpus | | + | | Memory |
- | | Job Count | 19,043 | 4:1 | 4,765 | scheduled jobs irregardless of exit status | | + | | Teraflops | 38 | 1.5:1 | 25 | double precision, floating point, theoretical |
+ | | Avail Hours | 715, | ||
+ | | Job Count | 2,834 | ||
+ | | Job Hours | 221, | ||
+ | | Avail Hrs Util% | 31 | 6:1 | 5 | weeping... | | ||
+ | | Avail Hours2 | 561, | ||
+ | | Avail Hrs2 Util% | 39 | 8:1 | 5 | more realistic... | | ||
+ | |||
+ | The logs showing gpu %util confirm the extremely low GPU usage. When concatenating the four gpu %util values int a string, since 01Jan2017, the string ' | ||
+ | |||
+ | So were these 25 days in June 2018 an oddity? March is Honors' | ||
+ | |||
+ | ^ Total Monthly CPU+GPU Hours ^^^^^^^^^^^ | ||
+ | ^Ju17^Aug17^Sep17^Oct17^Nov17^Dec17^Jan18^Feb18^Mar18^Apr18^May18^ | ||
+ | |313, | ||
**[[cluster: | **[[cluster: |