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pooling.cpp
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#include <stdio.h>
#include <assert.h>
#include <string.h>
#include <stdbool.h>
#include "ap_int.h"
#include "math.h"
#include "conv.h"
#define PARA 16
//#define img_num 32
void pool(int_ *input, char_ *pos,
int_ *output, int *params, int * sparams)
{
char_ weight_buf[PARA][64];
int_ in_buf[64][PARA*img_num];
// char_ bias_buf[PARA][2048/PARA];
int_ tmp[PARA*128];
ubit_ larger = 0;
ubit_ smaller = 1;
int inChannel = params[0];
int outChannel = params[1];
int inCh_once = params[2];
int outCh_once = params[3];
int iteration_out = outChannel/PARA;
int x_dim = params[4];
int y_dim = params[5];
int stride = params[6];
int pad = params[7];
int ksize = params[8];
int maxpool = params[9];
//int img_num = params[10];
/*int s_in = params[11];
int s_w = params[12];
int s_out = params[13];
int s_b = params[14];
int s_in_pre = params[15];
int s_w_pre = params[16];
int s_out_pre = params[17];
int s_b_pre = params[18];
int s_indif_pre = params[19];
int s_outdif_pre = params[20];*/
// int s_in_pre0 = params[21];
// int rate = params[16];
int s_in = sparams[0];
int s_w = sparams[1];
int s_out = sparams[2];
int s_b = sparams[3];
int s_in_pre = sparams[4];
int s_w_pre = sparams[5];
int s_out_pre = sparams[6];
int s_b_pre = sparams[7];
int s_indif_pre = sparams[8];
int s_outdif_pre = sparams[9];
int s_in_pre0 = sparams[10];
int x_out = ((x_dim - ksize) / stride) + 1;
int y_out = x_out;
for(int o = 0; o<iteration_out; o++)
for(int y =0; y < y_out; y++)
for(int x = 0; x < x_out;x++)
{
for(int p=0;p<ksize;p++)
for(int q=0;q<ksize;q++)
{
int x_in = x*stride+q;
int y_in = y*stride+p;
int inoff = (p*ksize+q);
int insize = PARA*img_num;
if((stride + q < ksize) && x != 0)
{
memcpy_int(in_buf[inoff], in_buf[p*ksize+stride + q], insize);
}
else
{
int in_off = ((y_in*x_dim+x_in) * inChannel + o*PARA )*img_num;
memcpy_int(in_buf[inoff], input + in_off, insize);
// for(int dd = 0 ;dd<insize; dd++)
// {printf(" %d ", *((int*)(input+in_off+dd)));}
}
}
for(int p=0;p<PARA;p++)
#pragma omp parallel for
for(int im=0;im<img_num;im++)
{
int_ max = 0;
char_ idx = 0;
ap_int<64> sum = 0;
for(int m=0;m<ksize;m++)
for(int n=0;n<ksize;n++)
{
int_ ip = in_buf[m*ksize+n][p*img_num+im];
// printf(" %d ", (int)ip);
if(maxpool)
{if(ip>max)
{
idx = m*ksize+n;
max = ip;
}
}
else
{
sum += ip;
}
}
// printf("\n");
int out_off = ((y*x_out+x)*outChannel + o*PARA + p)*img_num+im;
if(maxpool)
{
output[out_off] = max;
pos[out_off] = idx;
}
else
{
output[out_off] = sum/ksize/ksize;
// printf(" %d ", (int)output[out_off]);
}
}
}
sparams[17-11] = s_in_pre;
}
void back_pool(int_ *indiff, char_ *pos,
int_ *outdiff0, int_ *outdiff1, int *params, int* sparams)
{
// char_ weight_buf[PARA][64];
int_ out_buf[PARA];
int_ out0_buf[PARA];
char_ pos_buf[PARA][img_num];
// char_ bias_buf[PARA][2048/PARA];
ubit_ larger = 0;
ubit_ smaller = 1;
int inChannel = params[0];
int outChannel = params[1];
int inCh_once = params[2];
int outCh_once = params[3];
int iteration_out = outChannel/PARA;
int x_dim = params[4];
int y_dim = params[5];
int stride = params[6];
int dup = params[7];
int ksize = params[8];
int maxpool = params[9];
// int img_num = params[10];
/* int s_in = params[11];
int s_w = params[12];
int s_out = params[13];
int s_b = params[14];
int s_in_pre = params[15];
int s_w_pre = params[16];
int s_out_pre = params[17];
int s_b_pre = params[18];
int s_indif_pre = params[19];
int s_outdif_pre = params[20];
int s_outdif_pre0 = params[21];*/
int s_in = sparams[0];
int s_w = sparams[1];
int s_out = sparams[2];
int s_b = sparams[3];
int s_in_pre = sparams[4];
int s_w_pre = sparams[5];
int s_out_pre = sparams[6];
int s_b_pre = sparams[7];
int s_indif_pre = sparams[8];
int s_outdif_pre = sparams[9];
int s_outdif_pre0 = sparams[10];
// int rate = params[16];
int x_out = ((x_dim - ksize) / stride) + 1;
int y_out = x_out;
for(int o = 0; o<iteration_out; o++)
for(int y =0; y < y_out; y++)
for(int x = 0; x < x_out;x++)
{
int out_trans_size = PARA;
int out_offset = ((y*x_out+x)*outChannel + o*PARA);
memcpy(out_buf, outdiff0+out_offset, 4*out_trans_size);
if(dup)
{
memcpy(out0_buf, outdiff1+out_offset, 4*out_trans_size);
}
//if(maxpool)
memcpy(pos_buf, pos+out_offset, out_trans_size*img_num);
#pragma omp parallel for
for(int p =0;p<PARA;p++)
{
int_ tmpout;
if(dup)
{ if( s_outdif_pre > s_outdif_pre0)
tmpout = out_buf[p] + out0_buf[p]<<(s_outdif_pre-s_outdif_pre0);
else
tmpout = out_buf[p] + out0_buf[p]>>(s_outdif_pre0-s_outdif_pre);
}
else
tmpout = out_buf[p];
if(maxpool)
{ int_ tmp[49];
memset_int(tmp, 49);
for(int im=0;im<img_num;im++)
{
int idx = pos_buf[p][im];
tmp[idx] += tmpout;
}
for(int m=0; m<ksize; m++)
for(int n=0; n<ksize; n++)
{
int x_in = x*stride + n;
int y_in = y*stride + m;
int in_off = (y_in*x_dim+x_in) * inChannel + o*PARA+p;
if (((stride+ n) <ksize && x!= 0) || ((stride +m) <ksize && y!=0) )
indiff[in_off] += tmp[m*ksize+n]/img_num;
else
indiff[in_off] = tmp[m*ksize+n]/img_num;
}
}
else
for(int m=0;m<ksize;m++)
for(int n=0;n<ksize;n++)
{
int x_in = x*stride + n;
int y_in = y*stride + m;
int in_off = (y_in*x_dim+x_in) * inChannel + o*PARA+p;
if (((stride+ n) <ksize && x!= 0) || ((stride +m) <ksize && y!=0) )
indiff[in_off] += tmpout /ksize/ksize;
else
indiff[in_off] = tmpout /ksize/ksize;
}
}
}
sparams[19-11] = s_outdif_pre;
}