99 lines
3.0 KiB
C++
99 lines
3.0 KiB
C++
#include "convolution.h"
|
|
#include <mpi.h>
|
|
#include <stdio.h>
|
|
#include "util.h"
|
|
|
|
static float *input, *output, *filter;
|
|
static int N, C, H, W;
|
|
static int K, R, S;
|
|
static int OH, OW;
|
|
static int pad;
|
|
static int dilation;
|
|
static int stride;
|
|
static int mpi_rank, mpi_world_size;
|
|
|
|
int num_threads = 40;
|
|
|
|
void convolution(
|
|
float *_input, float *_output, float *_filter,
|
|
int _N, int _C, int _H, int _W,
|
|
int _K, int _R, int _S,
|
|
int _pad, int _dilation, int _stride) {
|
|
int size[2];
|
|
MPI_Request request;
|
|
MPI_Status status;
|
|
|
|
input = _input;
|
|
output = _output;
|
|
filter = _filter;
|
|
|
|
if (mpi_world_size == 2) size[1] = _N / 2;
|
|
else size[1] = 0;
|
|
size[0] = N - size[1];
|
|
|
|
OH = (H + 2 * pad - dilation * (R - 1) - 1) / stride + 1;
|
|
OW = (W + 2 * pad - dilation * (S - 1) - 1) / stride + 1;
|
|
|
|
if (mpi_rank == 0 && mpi_world_size == 2) {
|
|
MPI_Isend(&input[size[0]*C*H*W], size[1]*C*H*W, MPI_FLOAT, 1, 0, MPI_COMM_WORLD, &request);
|
|
MPI_Isend(filter, K*C*R*S, MPI_FLOAT, 1, 0, MPI_COMM_WORLD, &request);
|
|
} else if (mpi_world_size == 2) {
|
|
alloc_tensor(&input, size[1], C, H, W);
|
|
alloc_tensor(&output, size[1], K, OH, OW);
|
|
alloc_tensor(&filter, K, C, R, S);
|
|
MPI_Recv(input, size[1]*C*H*W, MPI_FLOAT, 0, 0, MPI_COMM_WORLD, &status);
|
|
MPI_Recv(filter, K*C*R*S, MPI_FLOAT, 0, 0, MPI_COMM_WORLD, &status);
|
|
}
|
|
|
|
#pragma omp parallel for num_threads(num_threads) collapse(3) schedule(dynamic)
|
|
for (int n = 0; n < size[mpi_rank]; ++n) {
|
|
for (int k = 0; k < K; ++k) {
|
|
for (int oh = 0; oh < OH; ++oh) {
|
|
for (int ow = 0; ow < OW; ++ow) {
|
|
float o = 0.f;
|
|
for (int c = 0; c < C; ++c) {
|
|
for (int r = 0; r < R; ++r) {
|
|
for (int s = 0; s < S; ++s) {
|
|
int h = oh * stride - pad + r * dilation;
|
|
int w = ow * stride - pad + s * dilation;
|
|
if (h < 0 || h >= H || w < 0 || w >= W) continue;
|
|
float i = input[n * C * H * W + c * H * W + h * W + w];
|
|
float f = filter[k * C * R * S + c * R * S + r * S + s];
|
|
o += i * f;
|
|
} // s
|
|
} // r
|
|
} // c
|
|
output[n * K * OH * OW + k * OH * OW + oh * OW + ow] = o;
|
|
} //ow
|
|
} // oh
|
|
} // k
|
|
} // n
|
|
|
|
if (mpi_rank == 0 && mpi_world_size == 2) {
|
|
MPI_Recv(&output[size[0]*K*OH*OW], size[1]*K*OH*OW, MPI_FLOAT, 1, 0, MPI_COMM_WORLD, &status);
|
|
} else if(mpi_world_size == 2){
|
|
MPI_Isend(output, size[1]*K*OH*OW, MPI_FLOAT, 0, 0, MPI_COMM_WORLD, &request);
|
|
}
|
|
|
|
}
|
|
|
|
void convolution_init(
|
|
int _N, int _C, int _H, int _W,
|
|
int _K, int _R, int _S,
|
|
int _pad, int _dilation, int _stride) {
|
|
N = _N; C = _C; H = _H; W = _W;
|
|
K = _K; R = _R; S = _S;
|
|
pad = _pad;
|
|
dilation = _dilation;
|
|
stride = _stride;
|
|
|
|
MPI_Comm_rank(MPI_COMM_WORLD, &mpi_rank);
|
|
MPI_Comm_size(MPI_COMM_WORLD, &mpi_world_size);
|
|
}
|
|
|
|
void convolution_final(
|
|
int _N, int _C, int _H, int _W,
|
|
int _K, int _R, int _S,
|
|
int _pad, int _dilation, int _stride) {
|
|
}
|