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118 lines
3.7 KiB
118 lines
3.7 KiB
CC := g++-10
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NVCC := nvcc
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CFLAGS := -Wall -std=c++17 -fopenmp -MMD
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NVCC_FLAGS := -MMD -w -Xcompiler
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INCLUDE := ../../
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LIBS_DIR :=
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LIBS_DIR_GPU := /usr/local/cuda/lib64
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LIBS :=
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LIBS_GPU := cuda cudart cublas
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TARGET = arrayFunctions
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SRC_DIR = .
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BUILD_DIR = build
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# Should not need to modify below.
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int main() {
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CudaTools::Array<int> arr = CudaTools::Array<int>::constant(0);
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arr.reshape({4, 5, 5}); // Creates a three dimensional array.
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arr[0][0][0] = 1; // Axis by axis indexing.
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arr[{1, 0, 0}] = 100; // Specific 'coordinate' indexing.
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std::cout << arr << "\n";
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CudaTools::Array<int> arrRange = CudaTools::Array<int>::range(18);
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auto arrSlice = arr.slice({{1, 2}, {1, 4}, {1, 4}}). // Takes a slice of the center.
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std::cout << "Before Copy:\n" << arrSlice << "\n";
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arrSlice = arrRange; // Copies arrRange into arrSlice. (Does NOT replace!)
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std::cout << "After Copy:\n" << arrSlice << "\n";
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std::cout << "Modified: \n" << arr << "\n"; // The original array is modified, since a slice does not copy.
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CudaTools::Array<int> newArr = arr.copy(); // Copies the original Array.
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for (auto it = newArr.begin(); it != newArr.end(); ++it) { // Iterate through the array.
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*it = 1;
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}
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std::cout << "Modified New Array:\n" << newArr << "\n";
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std::cout << "Old Array:\n" << arr << "\n"; // The original array was not modified after a copy.
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return 0;
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}
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CPU_BUILD_DIR = $(BUILD_DIR)/cpu
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GPU_BUILD_DIR = $(BUILD_DIR)/gpu
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SRC = $(wildcard $(SRC_DIR)/*/*.cpp) $(wildcard $(SRC_DIR)/*.cpp)
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# Get source files and object files.
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GCC_SRC = $(filter-out %.cu.cpp ,$(SRC))
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NVCC_SRC = $(filter %.cu.cpp, $(SRC))
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GCC_OBJ = $(GCC_SRC:$(SRC_DIR)/%.cpp=%.o)
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NVCC_OBJ = $(NVCC_SRC:$(SRC_DIR)/%.cpp=%.o)
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# If compiling for CPU, all go to GCC. Otherwise, they are split.
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CPU_OBJ = $(addprefix $(CPU_BUILD_DIR)/,$(GCC_OBJ)) $(addprefix $(CPU_BUILD_DIR)/,$(NVCC_OBJ))
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GPU_GCC_OBJ = $(addprefix $(GPU_BUILD_DIR)/,$(GCC_OBJ))
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GPU_NVCC_OBJ = $(addprefix $(GPU_BUILD_DIR)/,$(NVCC_OBJ))
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# $(info $$GCC_SRC is [${GCC_SRC}])
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# $(info $$NVCC_SRC is [${NVCC_SRC}])
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# $(info $$GCC_OBJ is [${GCC_OBJ}])
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# $(info $$NVCC_OBJ is [${NVCC_OBJ}])
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# $(info $$CPU_OBJ is [${CPU_OBJ}])
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# $(info $$GPU_GCC_OBJ is [${GPU_GCC_OBJ}])
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# $(info $$GPU_NVCC_OBJ is [${GPU_NVCC_OBJ}])
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HEADER = $(wildcard $(SRC_DIR)/*/*.h) $(wildcard $(SRC_DIR)/*.h)
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CPU_DEPS = $(wildcard $(CPU_BUILD_DIR)/*.d)
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GPU_DEPS = $(wildcard $(GPU_BUILD_DIR)/*.d)
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INC := $(INCLUDE:%=-I%)
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LIB := $(LIBS_DIR:%=-L%)
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LIB_GPU := $(LIBS_DIR_GPU:%=-L%)
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LD := $(LIBS:%=-l%)
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LD_GPU := $(LIBS_GPU:%=-l%)
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# Reminder:
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# $< = first prerequisite
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# $@ = the target which matched the rule
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# $^ = all prerequisites
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.PHONY: all clean
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all : cpu gpu
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cpu: $(TARGET)CPU
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gpu: $(TARGET)GPU
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$(TARGET)CPU: $(CPU_OBJ)
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$(CC) $(CFLAGS) $^ -o $@ $(INC) $(LIB) $(LDFLAGS)
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$(CPU_BUILD_DIR)/%.o $(CPU_BUILD_DIR)/%.cu.o: $(SRC_DIR)/%.cpp | $(CPU_BUILD_DIR)
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$(CC) $(CFLAGS) -c -o $@ $< $(INC)
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# For GPU, we need to build the NVCC objects, the NVCC linked object, and the
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# regular ones. Then, we link them all together.
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$(TARGET)GPU: $(GPU_BUILD_DIR)/link.o $(GPU_GCC_OBJ) | $(GPU_BUILD_DIR)
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$(CC) -g -DCUDA $(CFLAGS) $(GPU_NVCC_OBJ) $^ -o $@ $(INC) $(LIB) $(LIB_GPU) $(LD) $(LD_GPU)
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$(GPU_BUILD_DIR)/link.o: $(GPU_NVCC_OBJ) | $(GPU_BUILD_DIR)
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$(NVCC) --device-link $^ -o $@
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$(GPU_BUILD_DIR)/%.cu.o: $(SRC_DIR)/%.cu.cpp | $(GPU_BUILD_DIR)
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$(NVCC) $(NVCC_FLAGS) -DCUDA -x cu --device-c -o $@ $< $(INC)
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$(GPU_BUILD_DIR)/%.o: $(SRC_DIR)/%.cpp | $(GPU_BUILD_DIR)
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$(CC) $(CFLAGS) -g -DCUDA -c -o $@ $< $(INC)
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-include $(CPU_DEPS)
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-include $(GPU_DEPS)
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$(CPU_BUILD_DIR):
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mkdir -p $@
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$(GPU_BUILD_DIR):
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mkdir -p $@
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clean:
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rm -Rf $(BUILD_DIR) $(TARGET)CPU $(TARGET)GPU
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