Case K40 Bedienungsanleitung PDF herunterladen (Seite 7)

NVIDIA GPU Boost for Tesla

NVIDIA GPU Boost for Tesla DA-06767-001_v02 | 3

NVIDIA GPU Boost is available on other NVIDIA products and the implementation

varies because of the customer use cases and workloads.

In the Tesla K40 there is something called the “Base Clock” and “Boost Clock(s).”

 Base Clock: Selected based on worst-case reference workload. All Tesla K40 boards

ship at the graphics core clock set at “base clock.” By default all Tesla K40 boards will

run at this clock setting.

 Boost Clock(s): These clocks are selected based on less power aggressive workloads.

There may be more than one boost clock to provide deterministic performance for

workloads that consume less than 235 W. In the case of the Tesla K40 there are two

boost clocks. An end user can select one of the boost clocks using NVML or nvidia-

smi. As long as the board power remains within 235 W the board will maintain the

selected boost clock for the entire execution period.

Figure 2. Base and Boost Clocks on Tesla K40

NVIDIA GPU Boost works on the principle that when an end user selects a higher boost

clock, all the cores run at that clock. It is unlike other implementations where under

boost different cores may be running at different clock frequency.

The boost clocks for Tesla K40 have been selected assuming that the workload demands

that the GPU runs at those clocks for close to 100% of the duration.

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Case K40 Bedienungsanleitung Seite 7