| | |
| | | { |
| | | |
| | | #ifdef CUDNN_HALF |
| | | // TRUE_HALF_CONFIG is only supported on architectures with true fp16 support (compute capability 5.3 and 6.0): Tegra X1, Jetson TX1, DRIVE CX, DRIVE PX, Quadro GP100, Tesla P100 |
| | | // TRUE_HALF_CONFIG is only supported on architectures with true fp16 support (compute capability 5.3 and 6.0): |
| | | // Tegra X1, Jetson TX1, DRIVE CX, DRIVE PX, Quadro GP100, Tesla P100 |
| | | // PSEUDO_HALF_CONFIG is required for Tensor Cores - our case! |
| | | const cudnnDataType_t data_type = CUDNN_DATA_HALF; |
| | | #else |
| | |
| | | // on architectures with DP4A support (compute capability 6.1 and later). |
| | | //cudnnDataType_t data_type = CUDNN_DATA_INT8; |
| | | |
| | | // backward delta |
| | | cudnnSetTensor4dDescriptor(l->dsrcTensorDesc, CUDNN_TENSOR_NCHW, data_type, l->batch, l->c, l->h, l->w); |
| | | cudnnSetTensor4dDescriptor(l->ddstTensorDesc, CUDNN_TENSOR_NCHW, data_type, l->batch, l->out_c, l->out_h, l->out_w); |
| | | cudnnSetFilter4dDescriptor(l->dweightDesc, data_type, CUDNN_TENSOR_NCHW, l->n, l->c, l->size, l->size); |
| | | |
| | | // forward |
| | | cudnnSetTensor4dDescriptor(l->srcTensorDesc, CUDNN_TENSOR_NCHW, data_type, l->batch, l->c, l->h, l->w); |
| | | cudnnSetTensor4dDescriptor(l->dstTensorDesc, CUDNN_TENSOR_NCHW, data_type, l->batch, l->out_c, l->out_h, l->out_w); |
| | | cudnnSetFilter4dDescriptor(l->weightDesc, data_type, CUDNN_TENSOR_NCHW, l->n, l->c, l->size, l->size); |
| | |
| | | l.weights_gpu = cuda_make_array(l.weights, c*n*size*size); |
| | | #ifdef CUDNN_HALF |
| | | l.weights_gpu16 = cuda_make_array(l.weights, c*n*size*size/2); |
| | | l.weight_updates_gpu16 = cuda_make_array(l.weight_updates, c*n*size*size / 2); |
| | | #endif |
| | | l.weight_updates_gpu = cuda_make_array(l.weight_updates, c*n*size*size); |
| | | |