104 lines
3.9 KiB
Makefile
104 lines
3.9 KiB
Makefile
# Interface:
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# make
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# make build
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# make format
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# make run
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# Compiler
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CC=gcc
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# CC=tcc # <= faster compilation
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# Main file
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SRC=samples.c
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OUTPUT=out/samples
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SRC_ONE_THREAD=./samples-one-thread.c
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OUTPUT_ONE_THREAD=out/samples-one-thread
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## Dependencies
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# Has no dependencies
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MATH=-lm
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## Flags
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DEBUG= #'-g'
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STANDARD=-std=c99
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WARNINGS=-Wall
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OPTIMIZED=-O3 #-O3 actually gives better performance than -Ofast, at least for this version
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OPENMP=-fopenmp
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## Formatter
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STYLE_BLUEPRINT=webkit
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FORMATTER=clang-format -i -style=$(STYLE_BLUEPRINT)
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## make build
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build: $(SRC)
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$(CC) $(OPTIMIZED) $(DEBUG) $(SRC) $(OPENMP) $(MATH) -o $(OUTPUT)
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format: $(SRC)
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$(FORMATTER) $(SRC)
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run: $(SRC) $(OUTPUT)
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OMP_NUM_THREADS=1 ./$(OUTPUT) && echo
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multi:
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OMP_NUM_THREADS=1 ./$(OUTPUT) && echo
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OMP_NUM_THREADS=2 ./$(OUTPUT) && echo
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OMP_NUM_THREADS=4 ./$(OUTPUT) && echo
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OMP_NUM_THREADS=8 ./$(OUTPUT) && echo
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OMP_NUM_THREADS=16 ./$(OUTPUT) && echo
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## Timing
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time-linux:
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@echo "Requires /bin/time, found on GNU/Linux systems" && echo
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@echo "Running 100x and taking avg time: OMP_NUM_THREADS=1 $(OUTPUT)"
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@t=$$(/usr/bin/time -f "%e" -p bash -c 'for i in {1..100}; do OMP_NUM_THREADS=1 $(OUTPUT); done' 2>&1 >/dev/null | grep real | awk '{print $$2}' ); echo "scale=2; 1000 * $$t / 100" | bc | sed "s|^|Time using 1 thread: |" | sed 's|$$|ms|' && echo
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@echo "Running 100x and taking avg time: OMP_NUM_THREADS=2 $(OUTPUT)"
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@t=$$(/usr/bin/time -f "%e" -p bash -c 'for i in {1..100}; do OMP_NUM_THREADS=2 $(OUTPUT); done' 2>&1 >/dev/null | grep real | awk '{print $$2}' ); echo "scale=2; 1000 * $$t / 100" | bc | sed "s|^|Time using 2 threads: |" | sed 's|$$|ms|' && echo
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@echo "Running 100x and taking avg time: OMP_NUM_THREADS=4 $(OUTPUT)"
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@t=$$(/usr/bin/time -f "%e" -p bash -c 'for i in {1..100}; do OMP_NUM_THREADS=4 $(OUTPUT); done' 2>&1 >/dev/null | grep real | awk '{print $$2}' ); echo "scale=2; 1000 * $$t / 100" | bc | sed "s|^|Time for 4 threads: |" | sed 's|$$|ms|' && echo
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@echo "Running 100x and taking avg time: OMP_NUM_THREADS=8 $(OUTPUT)"
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@t=$$(/usr/bin/time -f "%e" -p bash -c 'for i in {1..100}; do OMP_NUM_THREADS=8 $(OUTPUT); done' 2>&1 >/dev/null | grep real | awk '{print $$2}' ); echo "scale=2; 1000 * $$t / 100" | bc | sed "s|^|Time using 8 threads: |" | sed 's|$$|ms|' && echo
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@echo "Running 100x and taking avg time: OMP_NUM_THREADS=16 $(OUTPUT)"
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@t=$$(/usr/bin/time -f "%e" -p bash -c 'for i in {1..100}; do OMP_NUM_THREADS=16 $(OUTPUT); done' 2>&1 >/dev/null | grep real | awk '{print $$2}' ); echo "scale=2; 1000 * $$t / 100" | bc | sed "s|^|Time using 16 threads: |" | sed 's|$$|ms|' && echo
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time-linux-fastest:
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@echo "Running 100x and taking avg time: OMP_NUM_THREADS=16 $(OUTPUT)"
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@t=$$(/usr/bin/time -f "%e" -p bash -c 'for i in {1..100}; do OMP_NUM_THREADS=16 $(OUTPUT); done' 2>&1 >/dev/null | grep real | awk '{print $$2}' ); echo "scale=2; 1000 * $$t / 100" | bc | sed "s|^|Time using 16 threads: |" | sed 's|$$|ms|' && echo
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time-linux-simple:
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@echo "Requires /bin/time, found on GNU/Linux systems" && echo
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OMP_NUM_THREADS=1 /bin/time -f "Time: %es" ./$(OUTPUT) && echo
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OMP_NUM_THREADS=2 /bin/time -f "Time: %es" ./$(OUTPUT) && echo
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OMP_NUM_THREADS=4 /bin/time -f "Time: %es" ./$(OUTPUT) && echo
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OMP_NUM_THREADS=8 /bin/time -f "Time: %es" ./$(OUTPUT) && echo
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OMP_NUM_THREADS=16 /bin/time -f "Time: %es" ./$(OUTPUT) && echo
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## Profiling
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profile-linux:
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echo "Requires perf, which depends on the kernel, and might be in linux-tools package or similar"
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echo "Must be run as sudo"
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$(CC) $(SRC) $(OPENMP) $(MATH) -o $(OUTPUT)
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# ./$(OUTPUT)
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# gprof:
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# gprof $(OUTPUT) gmon.out > analysis.txt
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# rm gmon.out
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# vim analysis.txt
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# rm analysis.txt
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# perf:
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OMP_NUM_THREADS=16 sudo perf record $(OUTPUT)
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perf report
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rm perf.data
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## Install
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debian-install-dependencies:
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sudo apt-get install libomp-dev
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