If there is excessive GPU-RAM consumption by CUDNN then then do not use Wor...

AlexeyAB

2018-02-21 033e934ce82826c73d851098baf7ce4b1a27c89a

 src/network.c

@@ -316,7 +316,17 @@
        net->layers[i].batch = b;
#ifdef CUDNN
        if(net->layers[i].type == CONVOLUTIONAL){
            cudnn_convolutional_setup(net->layers + i);
         layer *l = net->layers + i;
            cudnn_convolutional_setup(l, cudnn_fastest);
         // check for excessive memory consumption 
         size_t free_byte;
         size_t total_byte;
         check_error(cudaMemGetInfo(&free_byte, &total_byte));
         if (l->workspace_size > free_byte || l->workspace_size >= total_byte / 2) {
            printf(" used slow CUDNN algo without Workspace! \n");
            cudnn_convolutional_setup(l, cudnn_smallest);
            l->workspace_size = get_workspace_size(*l);
         }
        }
#endif
    }
@@ -378,6 +388,7 @@
    }
#ifdef GPU
    if(gpu_index >= 0){
      printf(" try to allocate workspace = %zu * sizeof(float), ", (workspace_size - 1) / sizeof(float) + 1);
        net->workspace = cuda_make_array(0, (workspace_size-1)/sizeof(float)+1);
      printf(" CUDA allocate done! \n");
    }else {