Add a comment about how to get nvml.h

Makefile.gpu

@@ -24,6 +24,7 @@
 # You may need to do the following or something similar for all this to work
 # export LD_LIBRARY_PATH=/usr/local/acml5.3.0/gfortran64/lib:/usr/local/cuda/lib64:/usr/local/lib
 # export PATH=$PATH:/usr/local/bin:/usr/local/cuda/bin
+# Install the GPU deployment Kit@ https://developer.nvidia.com/gpu-deployment-kit
 
 CC = g++-4.8
 NVCC = nvcc
@@ -62,11 +63,11 @@ else
 	MATHLIB_DEFINE = -DUSE_ACML
 endif
 
-CUDA_PATH = /usr/local/cuda-7.0
+CUDA_PATH = /scratch/cuda-7.0
 CUDA_INCLUDE = $(CUDA_PATH)/include
 CUDA_LIB = -L$(CUDA_PATH)/lib64 -lcublas -lcudart -lcuda -lcurand -lcusparse -lnvidia-ml
 
-NVML_INCLUDE = /usr/include/nvidia/gdk
+NVML_INCLUDE = /scratch/usr/include/nvidia/gdk # install and include it @ https://developer.nvidia.com/gpu-deployment-kit
 
 INCFLAGS = -I Common/Include -I Math/Math -I MachineLearning/CNTK -I $(CUDA_INCLUDE) -I $(MATHLIB_INCLUDE) -I $(NVML_INCLUDE)