80 lines
2.1 KiB
Makefile
80 lines
2.1 KiB
Makefile
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# Compiler and flags
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CC := g++
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CXXFLAGS := -std=c++14 -Wall -Iinclude -O3 -march=native -fopenmp
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LDFLAGS := -fopenmp
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# Directories
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SRC_DIR := src
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INC_DIR := include
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OBJ_DIR := obj
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BIN_DIR := bin
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#
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# === Executable Name ===
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TARGET := $(BIN_DIR)/abc_lab
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# === Find all .cpp files recursively in src/ ===
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SRCS := $(shell find $(SRC_DIR) -name '*.cpp')
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# === Convert src/foo/bar.cpp → obj/foo/bar.o ===
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OBJS := $(patsubst $(SRC_DIR)/%.cpp,$(OBJ_DIR)/%.o,$(SRCS))
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# === OpenMP runtime configuration (override-able) ===
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OMP_PROC_BIND ?= close # close|spread|master
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OMP_PLACES ?= cores # cores|threads|sockets
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OMP_MAX_LEVELS ?= 1 # 1 = no nested teams; set 2+ to allow nesting
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OMP_THREADS ?= 16 # e.g. "16" or "8,4" for nested (outer,inner)
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OMP_DYNAMIC ?= true # true/false: let runtime adjust threads
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OMP_DISPLAY_ENV ?= FALSE # TRUE to print runtime config at startup
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# === Default Target ===
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all: $(TARGET)
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# === Linking final executable ===
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$(TARGET): $(OBJS)
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@mkdir -p $(dir $@)
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$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
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# === Compiling source files to object files ===
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$(OBJ_DIR)/%.o: $(SRC_DIR)/%.cpp
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@mkdir -p $(dir $@)
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$(CXX) $(CXXFLAGS) -c $< -o $@
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# === Run with OpenMP env set only for the run ===
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.PHONY: run
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run: $(TARGET)
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OMP_PROC_BIND=$(OMP_PROC_BIND) \
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OMP_PLACES=$(OMP_PLACES) \
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OMP_MAX_ACTIVE_LEVELS=$(OMP_MAX_LEVELS) \
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OMP_NUM_THREADS="$(OMP_THREADS)" \
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OMP_DYNAMIC=$(OMP_DYNAMIC) \
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OMP_DISPLAY_ENV=$(OMP_DISPLAY_ENV) \
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./$(TARGET)
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# Handy presets
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.PHONY: run-single
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run-single: ## Single-level parallel (good default)
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$(MAKE) run OMP_MAX_LEVELS=1 OMP_THREADS=16 OMP_PROC_BIND=close OMP_PLACES=cores
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.PHONY: run-nested
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run-nested: ## Two-level nested (outer,inner), adjust to your cores
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$(MAKE) run OMP_MAX_LEVELS=2 OMP_THREADS="4,8" OMP_PROC_BIND=close OMP_PLACES=cores
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# Clean up
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.PHONY: clean
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clean:
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rm -rf $(OBJ_DIR) $(BIN_DIR)
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# Optional: print debug info
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.PHONY: info
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info:
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@echo "Source files: $(SRCS)"
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@echo "Object files: $(OBJS)"
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@echo "CXXFLAGS: $(CXXFLAGS)"
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@echo "LDFLAGS: $(LDFLAGS)"
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