Makefile.single

# When building a library with CUDA code we should support diverse scenarios,
# where the CUDA code in the library may be used by:
#   - host code in the library itself (i.e. a kernel defined and used within the library)
#   - host code in a user program or library (i.e. a kernel defined in the library)
#   - CUDA code in a user program or library (i.e. __device__ code in the library)

.PHONY: all clean

BUILD:=build$(suffix $(word 1, $(MAKEFILE_LIST)))

CUDA_BASE=/usr/local/cuda-9.2
CUDA_ARCH=sm_35 sm_50 sm_61
CUDA_CXXFLAGS=$(foreach ARCH,$(CUDA_ARCH),-gencode arch=$(ARCH:sm_%=compute_%),code=$(ARCH))

HOST_CXX=g++
HOST_CXXFLAGS=-fPIC -Wall

CXXFLAGS=-std=c++14 -O2 -I$(CUDA_BASE)/include -I.

CUDA_LDFLAGS=-L$(CUDA_BASE)/lib64/stubs -L$(CUDA_BASE)/lib64 -lcudadevrt -lcudart -lrt -lpthread -ldl

all: $(BUILD)/app
	echo ./$(BUILD)/app

clean:
	rm -rf $(BUILD)

$(BUILD)/app: particle/particle.cu particle/v3.cu propagate/propagate.cu main.cc
	@mkdir -p $(dir $@)
	# call the host linker to build the executable
	cat $^ | $(CUDA_BASE)/bin/nvcc -x cu $(CXXFLAGS) $(CUDA_CXXFLAGS) -ccbin $(HOST_CXX) -Xcompiler '$(HOST_CXXFLAGS)' - -o $@