Compile pytorch from the latest git library. How to set the variables to let cmake detect NNPack or MKLDNN , I found there are variables like NO_MKLDNN  WITH_MKLDNN  MKLDNN_LIBRARY  MKLDNN_LIB_DIR  MKLDNN_INCLUDE_DIR .  How to pass these variables to cmake?
Does NNPack or  MKLDNN speed up for double precision?