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cluster:184 [2019/09/03 12:54]
hmeij07 created 		cluster:184 [2019/09/05 11:56]
hmeij07 [2019 GPU Expansion]
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   * [[cluster:181|2019 GPU Models]] page   * [[cluster:181|2019 GPU Models]] page
   * [[cluster:182|P100 vs RTX 6000 & T4]] page   * [[cluster:182|P100 vs RTX 6000 & T4]] page
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 +^  Vendor  ^  A  ^^  B  ^^  C  ^^  D  ^^  Notes  ^
 +^  Quote  ^  #1  ^  #2  ^  #1  ^  #2  ^  #1  ^  #2  ^  #1  ^  #2  ^    |
 +|  Nodes  |    |    |    |    |    |    |    |    |  U  |
 +|  Cpus  |    |    |    |    |    |    |    |    |    |
 +|  Cores  |    |    |    |    |    |    |    |    |  physical  |
 +|  Gpus  |    |    |    |    |    |    |    |    |    |
 +|  Cores  |    |    |    |    |    |    |    |    |  cuda  |
 +|  Cores  |    |    |    |    |    |    |    |    |  tensor  |
 +|  Tflops  |    |    |    |    |    |    |    |    |  cpu dpfp  |
 +|  Tflops  |    |    |    |    |    |    |    |    |  gpu spfp  |
 +
 +**Exxactcorp**: For the GPU discussion, 2 to 4 GPUs per node is fine. T4 GPU is 100% fine , and the passive heatsink is better not worse. The system needs to be one that supports passive Tesla cards and the chassis fans would simply ramp to cool the card properly, as in any passive tesla situation.  Titan RTX GPUs is what you should be worried about, and I would be hesitant to quote them. They are *NOT GOOD* for multi GPU systems.
 +
 +**Microway**: For this mix of workloads two to four GPUs per node is a good balance. Passive GPUs are *better* for HPC usage. All Tesla GPUs for the last 5? years have been passive. I'd be happy to help allay any concerns you may have there. The short version is that the GPU and the server platform communicate as to the GPUs temperature. The server adjusts fan speeds appropriately and is able to move far more air than a built-in fan would ever be able to.
 +
 +**ConRes**: In regards to the question around active vs. passive cooling on GPUs, the T4, V100, and other passively cooled GPUs are intended for 100% utilization and actually can offer better cooling and higher density in a system than active GPU models.
  
  
 ==== Summary ==== ==== Summary ====
 +
 +Lets amend this request [to vendors]. I realize with 100k we might be only talking about 4-6 boxes. I can handle all the software. Would be nice if all nodes did have centos7+cuda installed. Not required but let me know. \\
 + --- //[[hmeij@wesleyan.edu|Henk]] 2019/09/03 08:55//
 +
  
  
cluster/184.txt ยท Last modified: 2020/01/03 13:22 by hmeij07

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