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cluster:176 [2018/11/20 18:46] hmeij07 [HPC Power] |
cluster:176 [2018/11/20 19:58] hmeij07 |
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As part of our reevaluation of our data center cooling capacity and overhaul, we need to get a handle on non-emergency power consumption in data center. This will be done by a third party consultant by clamping power cables in the penthouse of Excley. So I bought myself a metered PDU and have been busy plugging entire racks into it one at a time. I then measure " | As part of our reevaluation of our data center cooling capacity and overhaul, we need to get a handle on non-emergency power consumption in data center. This will be done by a third party consultant by clamping power cables in the penthouse of Excley. So I bought myself a metered PDU and have been busy plugging entire racks into it one at a time. I then measure " | ||
- | * " | + | * " |
* " | * " | ||
- | * Amps * 208V = Watts | + | * Metered |
* Watts * (24 * 365)/1000 = KwH/Y | * Watts * (24 * 365)/1000 = KwH/Y | ||
- | * kwH/Y * $0.12 = $/Y (mix cogen and utility, 2013 assumption by Pete of PP) | + | * kwH/Y * $0.125 = $/Y (mix cogen and utility, 2013 assumption by Pete of PP) |
* Double the $/Y to include cooling costs (Pete of PP assumption) | * Double the $/Y to include cooling costs (Pete of PP assumption) | ||
- | ^ ^^ Idle ^ Peak ^ Idle ^ Peak ^ Idle ^ Peak ^ Idle ^ Peak ^ | + | ^ |
- | ^ Rack ^ L6-30P | + | ^ Rack ^ L6-30P |
- | | R4R04 | 3 | 22 | 37 | 4,576 | 7,696 | 40, | + | | R4R04 | 3 | 22 | 37 | 4,576 | 7,696 | 40, |
- | | R4R05 | 4 | 17 | 34 | 3,536 | 7,072 | | + | | R4R05 | 4 | 17 | 34 | 3,536 | 7,072 | |
- | | R4R06 | 2 | 6 | | 1,204 | | 8,970 | | 1,121 | | | + | | R4R06 | 2 | 6 | | 1,204 | | 8,970 | | 1,121 | |
- | | R4R07 | 2 | 14 | 34 | 2,912 | 7,072 | 25, | + | | R4R07 | 2 | 14 | 34 | 2,912 | 7,072 | 25, |
- | | R4R08 | 2 | 4 | | 832 | | 7,288 | | 911 | | | + | | R4R08 | 2 | 4 | | 832 | | 7,288 | | 911 | |
- | | Total | 13 | 63 | 105 | 13, | + | | Total | 13 | 63 | 105 | 13, |
+ | |||
+ | In 2013 we found for our Dell Racks purchased in 2006 (full of PE1950 and PE2950 servers) [[cluster: | ||
+ | |||
+ | * 115,000 KwH/Y per rack for power | ||
+ | * 14,375 $/Y per rack for power | ||
+ | |||
+ | So a great improvement in energy efficiency. We probably grew from near 5 teraflops to near 60 teraflops in this time period (double precision, floating point, theoretical). | ||
- | * in 2013 we found for Dell Racks: | ||