Add explanation of CUPY_TF32 to docs
@@ -57,6 +57,11 @@ Here are the environment variables CuPy uses.
| | its priority. Default is empty string (all |
| | accelerators are disabled). |
+------------------------------------+----------------------------------------------------+
+| ``CUPY_TF32`` | If set to 1, it allows CUDA libraries to use |
+| | Tensor Cores TF32 compute for 32-bit floating |
+| | point compute. |
+| | The default is 0 and TF32 is not used. |
++------------------------------------+----------------------------------------------------+
| ``NVCC`` | Define the compiler to use when compiling CUDA |
| | source. Note that most CuPy kernels are built with |
| | NVRTC; this environment is only effective for |
