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HS06 on last generation of HEP worker nodes Berkeley, Hepix Fall ‘09

HS06 on last generation of HEP worker nodes Berkeley, Hepix Fall ‘09. INFN - Padova michele.michelotto at pd.infn.it. 471.omnetpp 473.astar 483.xalancbmk 444.amd 447.dealII 450.soplex 453.povray. Geometric average on 7 tests. Sum on all cores Sum on all Worker nodes. HEP-SPEC06.

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HS06 on last generation of HEP worker nodes Berkeley, Hepix Fall ‘09

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  1. HS06 on last generation of HEP worker nodesBerkeley, Hepix Fall ‘09 INFN - Padova michele.michelotto at pd.infn.it

  2. 471.omnetpp 473.astar 483.xalancbmk 444.amd 447.dealII 450.soplex 453.povray Geometric average on 7 tests. Sum on all cores Sum on all Worker nodes HEP-SPEC06 Integer tests Floating Point tests michele michelotto - INFN Padova

  3. “old cpu” michele michelotto - INFN Padova

  4. Modern 4core processor • About 60 Measurement from Brunengo, Macorini, Crescente, Calzolari (all INFN), Srinivasan (LBNL), Iribarren (CERN), Alef (GridKa), PIC, RAL, Nikhef nehalem DC-QC Xeon michele michelotto - INFN Padova

  5. Measuring Nehalem • Phase space complicated • 32-64 bit • Hyperthreading ON - OFF • Memory (Size and number of channels) • Turbo Mode ON - OFF michele michelotto - INFN Padova

  6. The official HS06: 32bit • HS06 HT is on118.30 (16t)81.81(8t) michele michelotto - INFN Padova

  7. 64 bit • HS06 HT is on136.74 (16t)95.14(8t) michele michelotto - INFN Padova

  8. 32 vs 64 michele michelotto - INFN Padova

  9. Memory48GB (6x8)24GB (3x8)16GB (2x8) 64 bit 32 bit michele michelotto - INFN Padova

  10. HT OFF 32bit • With HT OFF I’d imagine saturation after 8th thread • Will HT OFF 1-8 = HT ON? michele michelotto - INFN Padova

  11. HT ON vs HT OFF HT ON:81.81HT OFF: 95.96HT OFF is better up to 11t michele michelotto - INFN Padova

  12. HT OFF 64bit At 64 bit: same behaviour Hepix Fall 09 michele michelotto - INFN Padova 12

  13. Turbo mode • Turn off the voltage on idle cores and overclock +133 MHz or even +266MHz the actives cores if temperature is ok • 5520 Default clock is 2266 MHz • 5520 3 of 4 core +1bin  2400 MHz • 5520 1 or 2 core +2bin  2533 MHz • New half-generation e.g. Xeon 3500 up to 4 bin michele michelotto - INFN Padova

  14. Turbo mode • Benefit of Turbo mode decrease when number of active core increase michele michelotto - INFN Padova

  15. Opteron 2427 32bit • HS06: 98.05 (12t) michele michelotto - INFN Padova

  16. Opteron 2427 – 64bit • HS06: 111.46 (12t) Hepix Fall 09 michele michelotto - INFN Padova 16

  17. Instanbul 2 x exacore • Opteron 2427 – 2200 MHz – 32GB • 2P x 6cores Hepix Fall 09 michele michelotto - INFN Padova 17

  18. Overbooking? • 5520 with HT OFF increased performance even after 8 cores • 2247 doesn’t show any drop with 12 cores fully loaded • What happens if we start overloading with more processes than cores?

  19. 5520(2266) vs 2427(2200) michele michelotto - INFN Padova

  20. 5520(2266) vs 2427(2200) Hepix Fall 09 michele michelotto - INFN Padova 20

  21. 5520(2266) vs 2427(2200) Hepix Fall 09 michele michelotto - INFN Padova 21

  22. Todo • Compare with Atlas and CMS code • GEN, SIM, DIGI and RECO • Effect of HT, Turbo Mode and Overbooking on Power Consumption

  23. Questions? michele michelotto - INFN Padova

  24. Nehalem “gainestown” • 45 nm • Cache L1 32+32 KB • Cache L2 256KB/core • Cache L3 8MB shared • 80W: E5502 1.86 GHz  E5540 2.53 GHz • 95W: X5550 2.66 GHz  X5570 2.93 GHz • Dual Thread (from 5520 upwards) • Turbo Mode • Quad core (excl. 5502 and 5508) michele michelotto - INFN Padova

  25. Opteron Instanbul 45 nm Cache L1 128 KB Cache L2 512KB/core Cache L3 6MB shared Power Consumption: EE: max 40W (1.8 GHz) HE: max 55W (2.0-2.1 GHz) Standard max 75W (2.2-2.6 GHz) SE max 105W (2.8GHz) Hepix Fall 09 michele michelotto - INFN Padova 25

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