1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
#ifndef __OPENCL_VERSION__
#include "header.cl"
#endif
__kernel void TEMPLATE(tile,Dtype)(const int_tp nthreads, __global const Dtype* bottom_data,
const int_tp tile_size, const int_tp num_tiles,
const int_tp bottom_tile_axis,
__global Dtype* top_data) {
for (int_tp index = get_global_id(0); index < nthreads;
index += get_global_size(0)) {
const int_tp d = index % tile_size;
const int_tp b = (index / tile_size / num_tiles) % bottom_tile_axis;
const int_tp n = index / tile_size / num_tiles / bottom_tile_axis;
const int_tp bottom_index = (n * bottom_tile_axis + b) * tile_size + d;
top_data[index] = bottom_data[bottom_index];
}
}
__kernel void TEMPLATE(tile_backward,Dtype)(const int_tp nthreads,
__global const Dtype* top_diff,
const int_tp tile_size,
const int_tp num_tiles,
const int_tp bottom_tile_axis,
__global Dtype* bottom_diff) {
for (int_tp index = get_global_id(0); index < nthreads;
index += get_global_size(0)) {
const int_tp d = index % tile_size;
const int_tp b = (index / tile_size) % bottom_tile_axis;
const int_tp n = index / tile_size / bottom_tile_axis;
bottom_diff[index] = 0;
int_tp top_index = (n * num_tiles * bottom_tile_axis + b) * tile_size + d;
for (int_tp t = 0; t < num_tiles; ++t) {
bottom_diff[index] += top_diff[top_index];
top_index += bottom_tile_axis * tile_size;
}
}
}
|
