Tesla M2090 throttles after a while?

Accelerated Computing CUDA CUDA Programming and Performance
1

This Tesla M2090 doesn’t run at P0 under heavy load.

from ‘nvidia-smi -a’
– cut here –
Product Name : Tesla M2090
Power Management Object : 4.0
Gpu : 99 %
Memory : 2 %
Power Readings
Power State : P1
Power Management : Supported
Power Draw : 225.42 W
Power Limit : 225 W
– cut here –

and after a while it is even running at P2
– cut here –
Product Name : Tesla M2090
Power Management Object : 4.0
Gpu : 99 %
Memory : 2 %
Power Readings
Power State : P2
Power Management : Supported
Power Draw : 207.78 W
Power Limit : 225 W
– cut here –

I would expect to run at P0 all the time.

software:

  • openSUSE 11.3
  • gcc 4.3.3
  • devdriver_4.0_linux_64_270.41.19.run
  • gpucomputingsdk_4.0.17_linux.run

Performance goes down a few percent once the GPU enters P2…

Oliver

2

Tesla M2090 comes with an advanced power management scheme. Please contact your OEM or NVIDIA

contact to find out more.