mirror of https://github.com/pjreddie/darknet.git
42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
#include "cuda_runtime.h"
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#include "curand.h"
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#include "cublas_v2.h"
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extern "C" {
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#include "dropout_layer.h"
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#include "cuda.h"
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#include "utils.h"
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}
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__global__ void yoloswag420blazeit360noscope(float *input, int size, float *rand, float prob, float scale)
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{
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int id = (blockIdx.x + blockIdx.y*gridDim.x) * blockDim.x + threadIdx.x;
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if(id < size) input[id] = (rand[id] < prob) ? 0 : input[id]*scale;
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}
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void forward_dropout_layer_gpu(dropout_layer layer, network net)
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{
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if (!net.train) return;
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int size = layer.inputs*layer.batch;
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cuda_random(layer.rand_gpu, size);
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/*
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int i;
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for(i = 0; i < size; ++i){
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layer.rand[i] = rand_uniform();
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}
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cuda_push_array(layer.rand_gpu, layer.rand, size);
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*/
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yoloswag420blazeit360noscope<<<cuda_gridsize(size), BLOCK>>>(net.input_gpu, size, layer.rand_gpu, layer.probability, layer.scale);
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check_error(cudaPeekAtLastError());
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}
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void backward_dropout_layer_gpu(dropout_layer layer, network net)
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{
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if(!net.delta_gpu) return;
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int size = layer.inputs*layer.batch;
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yoloswag420blazeit360noscope<<<cuda_gridsize(size), BLOCK>>>(net.delta_gpu, size, layer.rand_gpu, layer.probability, layer.scale);
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check_error(cudaPeekAtLastError());
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}
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