Add OpenMP makefile that targets CPUs and GPUs, with common defaults.

OpenMP.make

@@ -0,0 +1,29 @@
+
+ifndef COMPILER
+$(info Define a compiler to set common defaults, i.e make COMPILER=GNU)
+endif
+
+COMPILER_ = $(CXX)
+COMPILER_GNU = g++
+COMPILER_INTEL = icpc
+COMPILER_CRAY = CC
+CC = $(COMPILER_$(COMPILER))
+
+FLAGS_ = -O3
+FLAGS_GNU = -O3 -std=c++11
+FLAGS_INTEL = -O3 -std=c++11
+FLAGS_CRAY = -O3 -hstd=c++11
+CFLAGS = $(FLAGS_$(COMPILER))
+
+OMP_ = 
+OMP_GNU   = -fopenmp
+OMP_INTEL = -qopenmp
+OMP_CRAY  =
+OMP = $(OMP_$(COMPILER))
+
+omp-stream: main.cpp OMPStream.cpp
+	$(CC) -O3 -std=c++11 -DOMP $^ $(OMP) -o $@
+
+omp-target-stream: main.cpp OMPStream.cpp
+	$(CC) -O3 -std=c++11 -DOMP -DOMP_TARGET_GPU $^ $(OMP) -o $@
+