[topi][CuDNN] Removed requirement for GPU from topi conv2d_cudnn.cuda and conv3d_cudnn.cuda #8276
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Previously,
conv2d_cudnn.cuda
would use cudnn's benchmarking function to select a forward convolution whencfg.is_fallback
, andconv3d_cudnn.cuda
would use cudnn's benchmarking at all times. After this commit, both expose the cudnn algorithm choice as an option. Ifcfg.is_fallback
, the local device will be benchmarked if present, otherwise will select a default cudnn implementation.In the future, to better support RPC use-cases, the fallback config should be based on cudnn-specific parameters saved in the Target object.