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Tianlei Wu authored and GitHub committed 3afb38cfb7d
[CUDA] Add use_tf32 cuda provider option (for FP32 Conv) (#19426) Follow up of https://github.com/microsoft/onnxruntime/pull/19357 to apply the use_tf32 option on fp32 cuDNN convolution. When use_tf32 = 0, we will disable TF32 in cuDNN convolution for FP32 inputs. https://docs.nvidia.com/deeplearning/cudnn/api/cudnn-graph-library.html#cudnnmathtype-t **CUDNN_FMA_MATH** - Restricted to only kernels that use FMA instructions. - On pre-NVIDIA A100 GPU devices, CUDNN_DEFAULT_MATH and CUDNN_FMA_MATH have the same behavior: Tensor Core kernels will not be selected. - With NVIDIA Ampere architecture and CUDA toolkit 11, CUDNN_DEFAULT_MATH permits TF32 Tensor Core operation and CUDNN_FMA_MATH does not. - The TF32 behavior for CUDNN_DEFAULT_MATH and the other Tensor Core math types can be explicitly disabled by the environment variable NVIDIA_TF32_OVERRIDE=0.