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263-0007-00L-Advanced-Syste…/Makefile
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Makefile

# Makefile for the project.
# Provides targets for building, running, benchmarking, testing, and visualization.
#
# Main commands:
# make run run the simulation, producing a CSV file
# containing pedestrian states at each iteration
# make video generate a video of the simulation
# make run-bench run benchmark measurements
# make test run all unit tests
#
# Default parameters can be overridden from the shell, as follows:
# (parameters can be provided selectively and in any order)
#
# make run N_P=<num_ped> N_ITER=<num_iter> CSV=<out.csv>
# make video N_P=<num_ped> N_ITER=<num_iter> CSV=<out.csv> MP4=<video.mp4>
# make run-bench N_P=<num_ped> N_ITER=<num_iter>
# Select the C++ compiler.
# Prefer g++ when available, otherwise fall back to clang++.
CXX := $(shell command -v g++ || command -v clang++)
ifeq ($(CXX),)
$(error No C++ compiler found. Please install g++ or clang++)
endif
ARCH := $(shell uname -m)
# Prepend sudo on ARM machines when benchmarking.
# This is needed to access the PMU performance counters.
ifeq ($(ARCH),arm64)
SUDO_BENCH := sudo
else ifeq ($(ARCH),aarch64)
SUDO_BENCH := sudo
else
SUDO_BENCH :=
endif
# Compiler flags:
# -O3 enable high-level optimization
# -march=native optimize for the current machine
# -std=c++23 use the C++23 standard
# -Wall -Wextra enable useful warnings
# -flto enable link-time optimization across .cpp files, allowing
# cross-file optimizations such as function inlining
CXXFLAGS := -O3 -march=native -std=c++23 -Wall -Wextra -flto
SRC := main.cpp forces.cpp social_force_baseline.cpp
HEADERS := board.hpp forces.hpp pedestrian.hpp vector2d.hpp constants.hpp social_force.hpp
TEST_SRC := test_vector2d.cpp test_board.cpp test_forces.cpp forces.cpp
TEST_TARGET := run_tests
TEST_LIBS := -lgtest -lgtest_main -pthread
TARGET := main
SIZES_TARGET := sizes
# Default simulation parameters and output files.
# These can be overridden from the make command line; see examples above.
N_P ?= 60 # Default number of pedestrians.
N_ITER ?= 4000 # Default number of simulation iterations.
CSV ?= positions.csv # Default CSV output file.
MP4 ?= simulation.mp4 # Default visualization video output file.
# Enable/disable non-reproducible random seeding.
# Default: RANDOM_SEED=0 uses the fixed seed for reproducibility.
# Use RANDOM_SEED=1 to seed from std::random_device.
RANDOM_SEED ?= 0
# Pass random-seeding mode to the C++ code.
CXXFLAGS += -DRANDOM_SEED=$(RANDOM_SEED)
.PHONY: all main run bench run-bench video sizes asm test clean clean-all
all: main
# make main : compile the main executable with benchmarking disabled.
main: clean
$(CXX) $(CXXFLAGS) $(SRC) -o $(TARGET)
# make run : compile the code and run the simulation without generating a video.
run: main
./$(TARGET) $(N_P) $(N_ITER) $(CSV)
# make bench : compile the main executable with benchmarking enabled.
bench: CXXFLAGS += -DBENCHMARK=1
bench: clean
$(SUDO_BENCH) $(CXX) $(CXXFLAGS) $(SRC) -o $(TARGET)
# make run-bench : compile and run benchmark measurements.
run-bench: bench
$(SUDO_BENCH) ./$(TARGET) $(N_P) $(N_ITER)
# make video : compile the code, run the simulation, and generate the video.
video: run
python visualization.py $(CSV) $(MP4)
# make sizes : compile the size-check helper.
sizes: clean
$(CXX) $(CXXFLAGS) sizes.cpp -o $(SIZES_TARGET)
# make test : compile and run all unit tests.
test: clean
$(CXX) $(CXXFLAGS) $(TEST_SRC) $(TEST_LIBS) -o $(TEST_TARGET)
./$(TEST_TARGET)
# make asm : compile and generate assembly files.
asm: clean main.s forces.s social_force_baseline.s
%.s: %.cpp $(HEADERS)
$(CXX) -O3 -march=native -std=c++23 -Wall -Wextra -DRANDOM_SEED=$(RANDOM_SEED) -S $< -o $@
# make clean : delete generated files from previous builds.
clean:
rm -f $(TARGET) $(SIZES_TARGET) $(TEST_TARGET) *.o *.s
# make clean-all : delete all generated files from previous builds and runs.
# WARNING: this deletes all *.csv and *.mp4 files in this directory.
# Move any output files you want to keep to another directory before running it.
clean-all: clean
rm -f *.csv *.mp4