查看“Jax”的源代码

*简单的说就是GPU加速、支持自动微分(autodiff)的numpy。参考[https://jax.readthedocs.io/en/latest/notebooks/quickstart.html]
*[https://cloud.tencent.com/developer/article/1593308]

==安装==
*jax和jaxlib版本要匹配（注意cuda支持）
*我的CUDA版本是11.1 ，卡是A40，系统是Ubuntu，cudnn版本是805
*安装最新版本 jax 0.2.26和jaxlib0.1.75后会在random函数报错“CustomCall failed: jaxlib/cuda_prng_kernels.cc:30: operation cudaGetLastError() failed: the provided PTX was compiled with an unsupported toolchain”
*最后安装的 jax0.2.1 (pip install -v jax==0.2.1), jaxlib是0.1.71 [https://storage.googleapis.com/jax-releases/cuda111/jaxlib-0.1.71+cuda111-cp38-none-manylinux2010_x86_64.whl]解决问题