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cluster:112

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All campus utilities are within the physical plant chart of accounts. Departments are not charged.

Overview

Cluster Blue Sky Dell HP GPU1) CPU2) Comment
12/2006 11/2010 04/2013 04/2013
Age (yrs) 11 5.5 1.5 0 0
Nodes (Nr) 45 36 32 4 13
Cores (Nr) 90 256 256 3)16 gpu, 64 cpu 208
Ram (GB) 1,080 384 340 80 gpu, 512 cpu 1,664
Teraflops 4)0.5-0.7 5)0.66 6)1.5 7)18.71 + 8)1.1 9)3.6
L6-30 (Nr) 4 8 4 2 2
Capacity10) (Watts) 24,960 49,920 24,960 12,480 12,480
Power (Watts11)) N/A12) 13)11,500 14)10,602 15)5,900 16)5,250
Cooling (Btus17)) 18)39,240 19)36,175 20)20,171 21)17,913
Annual Costs22) ($) 46,091 42,930 25,864 23,506 23)using 2009 data
$1,000/Tflop 69.8 28.6 1.3 6.5 24)using 2009 data

Details

All dollar figures based on spreadsheet using March 2009 values

  • This will overestimate actual costs because now we have cogen generation
    • 64% off peak, 36% on peak consumption
    • includes distribution and transmission charges

Notes

  • one L6-30 connector can sustain 7,500 watts at 250 volts
    • we run at 208V which can sustain 6,240 watts per connector
  • wattometer: example 7 Kwh consumed in 19 hours = 368 watts per hour on average
  • 1,000 Btus equal 293 watts
  • assume cost of $ 0.10 per Kwh (kilo watt hour)
  • annual Kwh = watts/1000 (from wattometer) * 24 * 365 * 30! (6 servers died)
  • power costs per year = $0.10/Kwh * watts/1,000 * 24 hours * 365 days

HP Nov-2010

  • 1.5 years old
  • 32 blade servers in 8 2U-shelves
  • 4 L6-30
    • 10,602 watts = 92,856 kwh annual = $21,465
    • 36,175 btus = 10,600 watts = 92,856 kwh annual = $21,465
  • total costs: $42,930/year
  • “roughly” $4,770 per 2U-shelves (8 2U-shelves + 1 head node of 2U)

Dell Jan-2007

  • 5.5 years old
  • 36 1U rack servers in 18 2U-shelves
  • 8 L6-30
    • 11,500 watts = 100,740 kwh annual = $23,098
    • 39,240 btus = 11,497 watts = 100,713 kwh annual = $23,093
  • total costs: $46,091/year
  • “roughly” $2,310 per 2U-shelves (18 2U-shelves + 2 head nodes of 2U)

CPU HPC 2012

  • new acquisition
  • 13 1U rack servers in 6.5 2U-shelves
  • 2 L6-30
    • 5,250 watts = 45,990 kwh annual = $11,754
    • 17,913 btus = 5,249 watts = 45,981 kwh annual= $11,752
  • total costs: $23,506/year
  • “roughly” $3,134 per 2U-shelves (6.5 2U-shelves + 1 head node of 2U)

GPU HPC 2012

  • new acquisition
  • 4 rack servers in 4 2U-shelves
  • 2 L6-30
    • 5,900 watts = 51,684 kwh annual = $12,934
    • 20,171 btus = 5,898 watts = 51,667 kwn annual = $12,930
  • total costs: $25,864
  • “roughly” $2,874 per 2U-shelves (8 2U-shelves + 1 head node of 2U)

Replace Dell

This is what the picture would look like using the 2009 spreadsheet data

What we should look at is teraflops replacement …

  • 0.66 teraflops, measured with Linpack (actual)
  • E5-2660 is rated at 140 Gflops so one node provides 280 Gflops (theoretical)
  • 2 and 1/3rd 1U nodes then replace the cluster
  • acquisition costs
    • 3 x $5,782 = $17,346 + PDUs, ethernet switch, cables
    • 48 cores, 840 Gflops
    • power/AC costs: 3($23,506/13) x3 years = $16,273
  • add both costs of new hardware and divide by dell total annual costs power+cooling
    • ROI: 3/4 year - but this is on a teraflop by teraflop basis

And if we double the teraflops…1.6 Tflops (actually + 1 Tflops), 1.5 years ROI for 96 cores.

L6-30 Connections

  • Dell
    • left rack (from rear) LCBR 01, 09, 08, 02 and UPS on 01
    • right rack (from rear) LCBR 03, 04 and UPS on 07
  • BSS
    • LCBR CIR 25/27, 21/23, 22/24, 26/28
  • HP
    • LCBR CIR 29/31, 28/30
    • LCBR 06
    • (#3 on Enterprise UPS) PDI1 CIR 31,33

Dell April-2013

Actual data obtained April - May, 2013

Kill-A-Watt Meter Stats; pulled one power supply … mean/1000 * 24 * 365 * 30!

Node jobs kwh time hh:mm mean comment annual kwh power annual +cooling annual (x2)
c04 8 2.29 06:30 352 idle, no jobs 92,509 $21,393 $42,786 wow
c32 8 6.94 19:35 356 jobs finished 93,556 $21,610 $43,220
c27 8 7.42 19:30 381 jobs finished 100,127 $22,971 $45,942
c06 8 27.46 65:11 395 4 running 103,806 $23,734 $47,468
c00 8 8.26 21:00 393 still running 103,280 $23,625 $47,250 *
c03 8 10.36 24:03 432 still running 113,530 $25,748 $51,496 *
c04 8 12.02 28:08 429 still running 112,741 $25,585 $51,170 *
c09 8 10.36 24:00 432 still running 113,530 $25,748 $51,496 *
c10 8 10.21 23:55 425 still running 111,690 $25,367 $50,734 * mean
c11 4 still running *
c13 3 still running *
c17 8 27.07 71:00 381 still running *
c18 8 11.23 24:41 455 still running *
c20 8 50.23 143: 351 still running *
c23 8 8.71 24:00 363 still running *
c25 8 9.80 25:02 392 still running *
c29 8 30.22 66:22 455 still running 119,574 $27,001 $54,002 *
c31 8 10.30 25:10 409 still running 107,485 $24,496 $48,992 *
c32 8 11.42 24:00 476 still running 123,379 $27,789 $55,578 *
c33 8 46.23 113: 409 still running *
c35 8 13.69 28:53 474 still running *


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1)
graphical processing unit, learn more about GPU History
2)
central processing unit
3)
provides 40,000 total cuda-cores
4)
cpu estimated
5) , 6)
cpu measured with Linpack
7)
gpu published by Nvidia
8) , 9)
cpu theoretical
10)
at 208 Volts
11)
per hour, KwH=Watts/1,000
12)
only turned on when needed, perhaps 8 weeks per year
13)
2009 Wesleyan calculation
14) , 15) , 16) , 19) , 20) , 21)
vendor published
17)
per hour, 1,000 Btus=293 Watts per hour
18)
2009 Wesleyan estimate
22)
power and cooling
23) , 24)
for Wesleyan/vendors data
cluster/112.1368455684.txt.gz · Last modified: by hmeij