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SkyNet is a light deep learning library.

Linux/Windows License
Build Status License: MIT

ResNet cpp-example for Win

Compare with Tensorflow, inference ResNet50. PC: i5-2400, GF1050, Win7, MSVC12.

CPU: time/img, ms GPU: time/img, ms CPU: RAM, Mb GPU: RAM, Mb
Skynet 195 15 600 800
Tensorflow 250 25 400 1400

Features

  • the library is written from scratch in C++ (only STL + OpenBLAS for calculation), C-interface

  • win / linux;

  • network structure is set in JSON;

  • base layers: fully connected, convolutional, pooling. Additional: resize, crop..;

  • basic chips: batchNorm, dropout, weight optimizers - adam, adagrad..;

  • for calculation on the CPU, OpenBLAS is used, for the video card - CUDA / cuDNN;

  • interfaces for C++, C# and Python.

Python example

# create net
net = snNet.Net()
net.addNode('In', snOperator.Input(), 'C1') \
   .addNode('C1', snOperator.Convolution(15), 'C2') \
   .addNode('C2', snOperator.Convolution(25), 'P1') \
   .addNode('P1', snOperator.Pooling(), 'F1') \
   .addNode('F1', snOperator.FullyConnected(256), 'F2') \
   .addNode('F2', snOperator.FullyConnected(10), 'LS') \
   .addNode('LS', snOperator.LossFunction(snType.lossType.softMaxToCrossEntropy), 'Output')
   
   .............

# cycle lern
for n in range(1000):
   acc = [0]  
   net.training(lr, inLayer, outLayer, targLayer, acc)

   # calc accurate
   acc[0] = 0
   for i in range(bsz):
       if (np.argmax(outLayer[i][0][0]) == np.argmax(targLayer[i][0][0])):
           acc[0] += 1

   accuratSumm += acc[0]/bsz

   print(datetime.datetime.now().strftime('%H:%M:%S'), n, "accurate", accuratSumm / (n + 1))

Install in Python

  • pip install libskynet - CPU

  • pip install libskynet-cu - CUDA + cuDNN7.3.1

License

Licensed under an [MIT-2.0]-license.

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  • C++ 84.4%
  • C 6.7%
  • C# 3.2%
  • Python 2.8%
  • Cuda 2.7%
  • CMake 0.2%