From 6553b3f0e3e55fc30a99c7d4b5798aa86d18a114 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Mon, 30 Mar 2015 02:31:47 +0000
Subject: [PATCH] no comment
---
src/maxpool_layer.c | 27 ++++++++++++++++++---------
1 files changed, 18 insertions(+), 9 deletions(-)
diff --git a/src/maxpool_layer.c b/src/maxpool_layer.c
index 834ebdb..790cb28 100644
--- a/src/maxpool_layer.c
+++ b/src/maxpool_layer.c
@@ -40,16 +40,25 @@
return layer;
}
-void resize_maxpool_layer(maxpool_layer *layer, int h, int w, int c)
+void resize_maxpool_layer(maxpool_layer *layer, int h, int w)
{
layer->h = h;
layer->w = w;
- layer->c = c;
- layer->output = realloc(layer->output, ((h-1)/layer->stride+1) * ((w-1)/layer->stride+1) * c * layer->batch* sizeof(float));
- layer->delta = realloc(layer->delta, ((h-1)/layer->stride+1) * ((w-1)/layer->stride+1) * c * layer->batch*sizeof(float));
+ int output_size = ((h-1)/layer->stride+1) * ((w-1)/layer->stride+1) * layer->c * layer->batch;
+ layer->output = realloc(layer->output, output_size * sizeof(float));
+ layer->delta = realloc(layer->delta, output_size * sizeof(float));
+
+ #ifdef GPU
+ cuda_free((float *)layer->indexes_gpu);
+ cuda_free(layer->output_gpu);
+ cuda_free(layer->delta_gpu);
+ layer->indexes_gpu = cuda_make_int_array(output_size);
+ layer->output_gpu = cuda_make_array(layer->output, output_size);
+ layer->delta_gpu = cuda_make_array(layer->delta, output_size);
+ #endif
}
-void forward_maxpool_layer(const maxpool_layer layer, float *input)
+void forward_maxpool_layer(const maxpool_layer layer, network_state state)
{
int b,i,j,k,l,m;
int w_offset = (-layer.size-1)/2 + 1;
@@ -73,7 +82,7 @@
int index = cur_w + layer.w*(cur_h + layer.h*(k + b*layer.c));
int valid = (cur_h >= 0 && cur_h < layer.h &&
cur_w >= 0 && cur_w < layer.w);
- float val = (valid != 0) ? input[index] : -FLT_MAX;
+ float val = (valid != 0) ? state.input[index] : -FLT_MAX;
max_i = (val > max) ? index : max_i;
max = (val > max) ? val : max;
}
@@ -86,16 +95,16 @@
}
}
-void backward_maxpool_layer(const maxpool_layer layer, float *delta)
+void backward_maxpool_layer(const maxpool_layer layer, network_state state)
{
int i;
int h = (layer.h-1)/layer.stride + 1;
int w = (layer.w-1)/layer.stride + 1;
int c = layer.c;
- memset(delta, 0, layer.batch*layer.h*layer.w*layer.c*sizeof(float));
+ memset(state.delta, 0, layer.batch*layer.h*layer.w*layer.c*sizeof(float));
for(i = 0; i < h*w*c*layer.batch; ++i){
int index = layer.indexes[i];
- delta[index] += layer.delta[i];
+ state.delta[index] += layer.delta[i];
}
}
--
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