mkldnn.mk

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ifeq ($(USE_MKLDNN), 1)
	MKLDNN_SUBMODDIR = $(ROOTDIR)/3rdparty/mkldnn
	MKLDNN_BUILDDIR = $(MKLDNN_SUBMODDIR)/build
	MXNET_LIBDIR = $(ROOTDIR)/lib
ifeq ($(UNAME_S), Darwin)
	OMP_LIBFILE = $(MKLDNNROOT)/lib/libiomp5.dylib
	MKLML_LIBFILE = $(MKLDNNROOT)/lib/libmklml.dylib
	MKLDNN_LIBFILE = $(MKLDNNROOT)/lib/libmkldnn.0.dylib
else
	OMP_LIBFILE = $(MKLDNNROOT)/lib/libiomp5.so
	MKLML_LIBFILE = $(MKLDNNROOT)/lib/libmklml_intel.so
	MKLDNN_LIBFILE = $(MKLDNNROOT)/lib/libmkldnn.so.0
endif
endif

.PHONY: mkldnn mkldnn_clean

ifneq ($(CPU_TARGET_ARCH),)
  ARCH_OPT_FLAGS=-mtune=$(CPU_TARGET_ARCH) -march=$(CPU_TARGET_ARCH)
else
  ARCH_OPT_FLAGS=
endif

mkldnn_build: $(MKLDNN_LIBFILE)
$(MKLDNN_LIBFILE):
	mkdir -p $(MKLDNNROOT)
	cd $(MKLDNN_SUBMODDIR) && rm -rf external && cd scripts && ./prepare_mkl.sh && cd .. && cp -a external/*/* $(MKLDNNROOT)/.
	cmake $(MKLDNN_SUBMODDIR) -DCMAKE_INSTALL_PREFIX=$(MKLDNNROOT) -B$(MKLDNN_BUILDDIR) -DARCH_OPT_FLAGS="$(ARCH_OPT_FLAGS)" -DWITH_TEST=OFF -DWITH_EXAMPLE=OFF
	$(MAKE) -C $(MKLDNN_BUILDDIR) VERBOSE=1
	$(MAKE) -C $(MKLDNN_BUILDDIR) install
	mkdir -p $(MXNET_LIBDIR)
	cp $(OMP_LIBFILE) $(MXNET_LIBDIR)
	cp $(MKLML_LIBFILE) $(MXNET_LIBDIR)
	cp $(MKLDNN_LIBFILE) $(MXNET_LIBDIR)

mkldnn_clean:
	$(RM) -r 3rdparty/mkldnn/build
	$(RM) -r $(MKLDNNROOT)

ifeq ($(USE_MKLDNN), 1)
mkldnn: mkldnn_build
else
mkldnn:
endif