Tutorial CUDA
Tutorial CUDA
Tutorial CUDA
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Device Management<br />
CPU can query and select GPU devices<br />
© NVIDIA Corporation 2008<br />
cudaGetDeviceCount( int *count )<br />
cudaSetDevice( int device )<br />
cudaGetDevice( int *current_device )<br />
cudaGetDeviceProperties( cudaDeviceProp* prop,<br />
int device )<br />
cudaChooseDevice( int *device, cudaDeviceProp* prop )<br />
Multi-GPU setup:<br />
device 0 is used by default<br />
one CPU thread can control only one GPU<br />
multiple CPU threads can control the same GPU<br />
– calls are serialized by the driver<br />
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