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amg4psblas/amgprec/impl/aggregator/isAlreadyMatched.cpp

46 lines
1.1 KiB
C++

#include "MatchBoxPC.h"
/**
* //TODO documentation
* @param k
* @param verLocInd
* @param StartIndex
* @param EndIndex
* @param GMate
* @param Mate
* @param Ghost2LocalMap
* @return
*/
bool isAlreadyMatched(MilanLongInt node,
MilanLongInt StartIndex,
MilanLongInt EndIndex,
vector<MilanLongInt> &GMate,
MilanLongInt *Mate,
map<MilanLongInt, MilanLongInt> &Ghost2LocalMap)
{
/*
#pragma omp critical(Mate)
{
if ((node < StartIndex) || (node > EndIndex)) { //Is it a ghost vertex?
result = GMate[Ghost2LocalMap[node]] >= 0;// Already matched
} else { //A local vertex
result = (Mate[node - StartIndex] >= 0); // Already matched
}
}
*/
MilanLongInt val;
if ((node < StartIndex) || (node > EndIndex)) // if ghost vertex
{
#pragma omp atomic read
val = GMate[Ghost2LocalMap[node]];
return val >= 0; // Already matched
}
// If not ghost vertex
#pragma omp atomic read
val = Mate[node - StartIndex];
return val >= 0; // Already matched
}