Fixed multi-GPU training for Tensor Cores

AlexeyAB

2018-03-09 880cf187d87c904f5fe574802ecff99118643f2d

 src/network.h

@@ -64,6 +64,10 @@
    #ifdef GPU
    float **input_gpu;
    float **truth_gpu;
   float **input16_gpu;
   float **output16_gpu;
   size_t *max_input16_size;
   size_t *max_output16_size;
   int wait_stream;
    #endif
} network;