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GPU/CPU performance dependence from AR value

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Raistmer:
I switched to 6.6.20 CUDA management from V10 pack for using rebranding and seems not edit app_info flop estimates right. So I recived 500 tasks at once. Did rebranding on whole queue (lost only few tasks during debugging). sorted by deadline time queue looks similarly GPU.CPU performance graph. 603 then 608 CUDA then 603 again. It seems scriopt work.
If some other successful reports will arive will put it to this thread. Maybe it could be ported to VBscript, to avoid using of Perl interpretator.

Raistmer:
To evaluate dependance of performance curve from type of GPU I did the same measurements on the same host with different GPU.
Now it was 8500GT, one of the slowest CUDA-capable GPUs. First experiment was with 9600GSO that can be viewed as midrange GPU.
Results plotted on this graph.

Performance values normalized on 100% to simplify GPU comparison.
One can see that the slower GPU is the less sensitive it to differencies in performances for different ARs. Nevertheless, curve has the same peculiarities as for 9600GSO.
IMHO the extrapolation to the faster GPUs will emphasize differencies in performance for different ARs. That is, the more fast GPU is the more it needs correct AR tasks to compute.

EDIT: current results in VHAR area recived for single core busy with other cores idle on CPU. CPU VHAR performance drops significally when all CPU cores busy with same VHAR task.
This effect needs more investigations (and will take influence on VHAR part of provided curves).

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