Fixed error in doc

Fixes cl.exe not being seen on Windows

Port the speedup from #3163 to the new backend.

Enable cudnn for AbstractConv2d

comp, out and err evaluate to:

False
b"nvcc fatal   : Cannot find compiler 'cl.exe' in PATH\r\n"
b''

So I found it necessary to add the --compiler-bindir flag to the source, in order to actually use cudnn.

CorrMM optimizations

Allow optimizer_excluding=inplace to keep the move to GPU.

Clean up (outs|inps)_on_gpu to (outs|inps)_is_tensor

Scan - Move costly checks from runtime to compilation

Better detect if we can use -lblas and more reuse of anaconda blas.

Correctly detect if we can reuse -lblas. We need to check with the compilation argument to be used and execute the program. Otherwise we won't detect some type of error

[ENH] Infer more things in Scan.infer_shape()

Use the right stream for cudnn.

 pep8 tensor signal list directory

Continued work on #3018: Stacktrace fix

Simplify comparisons