[bundles] Add lenet_mnist bundle example

examples/bundles/lenet_mnist/Makefile

@@ -0,0 +1,56 @@
+# The path to the image-classifier executable.
+LOADER?=~/src/build/glow/bin/image-classifier
+
+# The root directory of the Glow repo.
+GLOW_SRC?=~/src/glow
+
+# Should quantize the network (YES/NO)?
+QUANTIZE?=YES
+
+# Path to the images.
+IMAGES=${GLOW_SRC}/tests/images/mnist
+
+# Input name of the model.
+MODEL_INPUT_NAME=data
+
+# Compiler.
+CXX=clang++
+
+run: lenet_mnist
+	cd build; \
+	for file in ${IMAGES}/*; do \
+		./lenet_mnist $$file; \
+	done
+
+# Build executable for floating point lenet_mnist.
+lenet_mnist: build/main.o build/lenet_mnist.o
+	${CXX} -o build/lenet_mnist build/lenet_mnist.o build/main.o -lpng
+
+profile.yml: download_weights
+	# Capture quantization profile based on all inputs.
+	# Note, Interpreter backend is used to collect the profile data.
+	${LOADER} ${IMAGES}/*.png -image_mode=0to1 -dump_profile=profile.yml -m lenet_mnist -model_input_name=${MODEL_INPUT_NAME}
+
+ifeq ($(QUANTIZE),YES)
+build/lenet_mnist.o: profile.yml
+	mkdir -p build
+	# Create bundle with quantized weights and computation graph.
+	${LOADER} ${IMAGES}/3_1020.png -image_mode=0to1 -load_profile=profile.yml -m lenet_mnist -model_input_name=${MODEL_INPUT_NAME} -cpu -emit-bundle build -g
+else
+build/lenet_mnist.o: download_weights
+	mkdir -p build
+	${LOADER} ${IMAGES}/3_1020.png -image_mode=0to1 -m lenet_mnist -model_input_name=${MODEL_INPUT_NAME} -cpu -emit-bundle build -g
+endif
+
+build/main.o: lenet_mnist.cpp
+	mkdir -p build
+	${CXX} -std=c++11 -c -g lenet_mnist.cpp -o build/main.o
+
+download_weights:
+	for file in predict_net.pbtxt predict_net.pb init_net.pb; do \
+		wget http://fb-glow-assets.s3.amazonaws.com/models/lenet_mnist/$$file -P lenet_mnist -nc; \
+	done
+
+clean:
+	rm -rf ./build
+	rm -f profile.yml