[backend] :cl-waffe2/backends.cpu
The package :cl-waffe2/backends.cpu provides a CPUTensor backend which relies most of kernel implementations on foreign libraries invoked via CFFI. (e.g.: OpenBLAS, oneDNN in the coming future).
Enabling the SIMD Extension
$ make build_simd_extension
See also: cl-waffe2-simd
To get further performance on CPU, SIMD Extension must be installed on your device. This extension provides further SIMD-enabled CPUTensor operations (e.g.: !max/!min, Sparse Matrix Supports, vectorized mathematical functions of SLEEF, etc...). To use it, run make build_simd_extension in the same directory as cl-waffe2.asd. You can confirm that it works properly with the (cl-waffe2:show-backends) function.