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Copy pathomp.cpp
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276 lines (216 loc) · 9.17 KB
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#include <iostream>
#include <chrono>
#include <omp.h>
#include "levelgraph.hpp"
void traverse_regular_graph_omp(LevelGraph& graph, unsigned num_threads, int repeat){
omp_set_num_threads(num_threads);
for(auto i=0; i<repeat; i++) {
#pragma omp parallel
{
#pragma omp single
{
for(size_t l=0; l<graph.level(); l++){
for(size_t i=0; i<graph.length(); i++){
Node& n = graph.node_at(l, i);
size_t out_edge_num = n._out_edges.size();
size_t in_edge_num = n._in_edges.size();
switch(in_edge_num){
case(0):{
switch(out_edge_num){
case(1):{
int* out0 = n.edge_ptr(0);
#pragma omp task depend(out: out0[0]) shared(n)
{ n.mark(); }
break;
}
case(2):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
#pragma omp task depend(out: out0[0], out1[0]) shared(n)
{ n.mark(); }
break;
}
case(3):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
#pragma omp task depend(out: out0[0], out1[0], out2[0]) shared(n)
{ n.mark(); }
break;
}
case(4):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
int* out3 = n.edge_ptr(3);
#pragma omp task depend(out: out0[0], out1[0], out2[0], out3[0]) shared(n)
{ n.mark(); }
break;
}
}
break;
}
case(1):{
int* in0 = graph.node_at(l-1, n._in_edges[0].first).edge_ptr(n._in_edges[0].second);
switch(out_edge_num){
case(1):{
int* out0 = n.edge_ptr(0);
#pragma omp task depend(in: in0[0]) depend(out: out0[0]) shared(n)
{ n.mark(); }
break;
}
case(2):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
#pragma omp task depend(in: in0[0]) depend(out: out0[0], out1[0]) shared(n)
{ n.mark(); }
break;
}
case(3):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
#pragma omp task depend(in: in0[0]) depend(out: out0[0], out1[0], out2[0]) shared(n)
{ n.mark(); }
break;
}
case(4):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
int* out3 = n.edge_ptr(3);
#pragma omp task depend(in: in0[0]) depend(out: out0[0], out1[0], out2[0], out3[0]) shared(n)
{ n.mark(); }
break;
}
}
break;
}
case(2):{
int* in0 = graph.node_at(l-1, n._in_edges[0].first).edge_ptr(n._in_edges[0].second);
int* in1 = graph.node_at(l-1, n._in_edges[1].first).edge_ptr(n._in_edges[1].second);
switch(out_edge_num){
case(1):{
int* out0 = n.edge_ptr(0);
#pragma omp task depend(in: in0[0], in1[0]) depend(out: out0[0]) shared(n)
{ n.mark(); }
break;
}
case(2):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
#pragma omp task depend(in: in0[0], in1[0]) depend(out: out0[0], out1[0]) shared(n)
{ n.mark(); }
break;
}
case(3):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
#pragma omp task depend(in: in0[0], in1[0]) depend(out: out0[0], out1[0], out2[0]) shared(n)
{ n.mark(); }
break;
}
case(4):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
int* out3 = n.edge_ptr(3);
#pragma omp task depend(in: in0[0], in1[0]) depend(out: out0[0], out1[0], out2[0], out3[0]) shared(n)
{ n.mark(); }
break;
}
}
break;
}
case(3):{
int* in0 = graph.node_at(l-1, n._in_edges[0].first).edge_ptr(n._in_edges[0].second);
int* in1 = graph.node_at(l-1, n._in_edges[1].first).edge_ptr(n._in_edges[1].second);
int* in2 = graph.node_at(l-1, n._in_edges[2].first).edge_ptr(n._in_edges[2].second);
switch(out_edge_num){
case(1):{
int* out0 = n.edge_ptr(0);
#pragma omp task depend(in: in0[0], in1[0], in2[0]) depend(out: out0[0]) shared(n)
{ n.mark(); }
break;
}
case(2):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
#pragma omp task depend(in: in0[0], in1[0], in2[0]) depend(out: out0[0], out1[0]) shared(n)
{ n.mark(); }
break;
}
case(3):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
#pragma omp task depend(in: in0[0], in1[0], in2[0]) depend(out: out0[0], out1[0], out2[0]) shared(n)
{ n.mark(); }
break;
}
case(4):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
int* out3 = n.edge_ptr(3);
#pragma omp task depend(in: in0[0], in1[0], in2[0]) depend(out: out0[0], out1[0], out2[0], out3[0]) shared(n)
{ n.mark(); }
break;
}
}
break;
}
case(4):{
int* in0 = graph.node_at(l-1, n._in_edges[0].first).edge_ptr(n._in_edges[0].second);
int* in1 = graph.node_at(l-1, n._in_edges[1].first).edge_ptr(n._in_edges[1].second);
int* in2 = graph.node_at(l-1, n._in_edges[2].first).edge_ptr(n._in_edges[2].second);
int* in3 = graph.node_at(l-1, n._in_edges[3].first).edge_ptr(n._in_edges[3].second);
switch(out_edge_num){
case(1):{
int* out0 = n.edge_ptr(0);
#pragma omp task depend(in: in0[0], in1[0], in2[0], in3[0]) depend(out: out0[0]) shared(n)
{ n.mark(); }
break;
}
case(2):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
#pragma omp task depend(in: in0[0], in1[0], in2[0], in3[0]) depend(out: out0[0], out1[0]) shared(n)
{ n.mark(); }
break;
}
case(3):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
#pragma omp task depend(in: in0[0], in1[0], in2[0], in3[0]) depend(out: out0[0], out1[0], out2[0]) shared(n)
{ n.mark(); }
break;
}
case(4):{
int* out0 = n.edge_ptr(0);
int* out1 = n.edge_ptr(1);
int* out2 = n.edge_ptr(2);
int* out3 = n.edge_ptr(3);
#pragma omp task depend(in: in0[0], in1[0], in2[0], in3[0]) depend(out: out0[0], out1[0], out2[0], out3[0]) shared(n)
{ n.mark(); }
break;
}
}
break;
}
}
}
}
}
}
graph.clear_graph();
}
}
std::chrono::microseconds measure_time_omp(LevelGraph& graph, unsigned num_threads, int repeat){
auto beg = std::chrono::high_resolution_clock::now();
traverse_regular_graph_omp(graph, num_threads, repeat);
auto end = std::chrono::high_resolution_clock::now();
return std::chrono::duration_cast<std::chrono::microseconds>(end - beg);
}
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