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modified time benchmark to repeat same buffer over and over to avoid IO bottlenecks and get more consistent numbers.

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Mark Borgerding
2003-11-01 04:44:50 +00:00
parent 471803ca08
commit 8ac63adc77
5 changed files with 118 additions and 16 deletions
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11
tools/Makefile
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@ -28,25 +28,26 @@ endif
$(UTIL): $(UTILSRC)
gcc -o $@ $(CFLAGS) $(TYPEFLAGS) $(UTILSRC)
RANDDAT=rand_$(DATATYPE)_$(NUMFFTS)_$(NFFT).dat
RANDDAT=rand_$(DATATYPE)_$(NFFT).dat
$(RANDDAT):
./rand_fft_data.py -n $(NUMFFTS) -N $(NFFT) -t $(DATATYPE) > $(RANDDAT)
./rand_fft_data.py -n 1 -N $(NFFT) -t $(DATATYPE) > $(RANDDAT)
time: all $(RANDDAT)
@echo
@echo -n "#### timing $(NUMFFTS) x $(NFFT) point FFTs. "; factor $(NFFT)
@if [ -x ~/fftw/st ] && [ $(DATATYPE) == "double" ]; then \
echo "#### FFTW FFT $(DATATYPE)"; \
time ~/fftw/st -n $(NFFT) < $(RANDDAT) > /dev/null;\
time ~/fftw/st -x $(NUMFFTS) -n $(NFFT) < $(RANDDAT) > /dev/null;\
fi
@echo "#### KISS FFT $(DATATYPE)"
@time ./$(UTIL) -n $(NFFT) < $(RANDDAT) > /dev/null
@time ./$(UTIL) -x $(NUMFFTS) -n $(NFFT) < $(RANDDAT) > /dev/null
@rm $(RANDDAT)
POW2=256 512 1024 2048
POW3=243 729 2187
POW5=25 125 625
mtime: all
@for n in $(POW2) ;do \
@for n in $(POW5) ;do \
export NFFT=$$n;make time; \
done