Binary Neural Network Toolkit

Training Part

• Python & Chainer

Inference Part

• C

Examples

• AlexNet
• Convolutional Neural Networks for Sentence Classification

https://ja.wikipedia.org/wiki/OpenMP

pi_openMP.cpp

g++ -fopenmp -std=gnu++11 pi_openMP.cpp

pi@raspberrypi:~/program $ ./a.out 
OpenMP max threads count = 4
PI ~= 3.14159265458984
Error [%] = 3.18325320541326e-08
Elapsed time [ms] = 13092
pi@raspberrypi:~/program $ ./a.out 
OpenMP max threads count = 4
PI ~= 3.14159265458984
Error [%] = 3.18325461899311e-08
Elapsed time [ms] = 13082
pi@raspberrypi:~/program $ ./a.out 
OpenMP max threads count = 4
PI ~= 3.14159265458984
Error [%] = 3.18325320541326e-08
Elapsed time [ms] = 13060
pi@raspberrypi:~/program $ ./a.out 
OpenMP max threads count = 4
PI ~= 3.14159265458984
Error [%] = 3.18325461899311e-08
Elapsed time [ms] = 13139
pi@raspberrypi:~/program $ ./a.out 
OpenMP max threads count = 4
PI ~= 3.14159265458984
Error [%] = 3.18325461899311e-08
Elapsed time [ms] = 13186

4 Cores - 約13秒

COMMENT OUT THIS #pragma omp parallel for reduction(+ : sum)

pi@raspberrypi:~/program $ ./a.out 
OpenMP max threads count = 4
PI ~= 3.14159265459007
Error [%] = 3.18398543977992e-08
Elapsed time [ms] = 52032

約52秒で完了した。4コアの実行結果のほぼ4倍。