本文整理汇总了C++中Epetra_MultiVector::ReplaceGlobalValue方法的典型用法代码示例。如果您正苦于以下问题：C++ Epetra_MultiVector::ReplaceGlobalValue方法的具体用法？C++ Epetra_MultiVector::ReplaceGlobalValue怎么用？C++ Epetra_MultiVector::ReplaceGlobalValue使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Epetra_MultiVector的用法示例。
在下文中一共展示了Epetra_MultiVector::ReplaceGlobalValue方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: G_localRMap
//.........这里部分代码省略.........
#endif
int nentries;
// size > maxentries as there could be fill
// TODO: Currently the size of the two arrays can be one, Even if we switch
// the loop below the size of the array required is nvectors. Fix it
double *values = new double[nvectors];
int *indices = new int[nvectors];
double *vecvalues;
#ifdef SHYLU_DEBUG
// mfh 25 May 2015: Don't declare this variable if it's not used.
// It's only used if SHYLU_DEBUG is defined.
int dropped = 0;
#endif // SHYLU_DEBUG
double *maxvalue = new double[nvectors];
#ifdef TIMING_OUTPUT
ftime.start();
#endif
int findex = g_localElems / nvectors ;
int cindex;
// int mypid = C->Comm().MyPID(); // unused
Epetra_MultiVector probevec (G_localRMap, nvectors);
Epetra_MultiVector Scol (G_localRMap, nvectors);
probevec.PutScalar(0.0);
for (i = 0 ; i < findex*nvectors ; i+=nvectors)
{
// Set the probevec to find block columns of S.
for (int k = 0; k < nvectors; k++)
{
cindex = k+i;
// TODO: Can do better than this, just need to go to the column map
// of C, there might be null columns in C
probevec.ReplaceGlobalValue(g_rows[cindex], k, 1.0);
//if (mypid == 0)
//cout << "Changing row to 1.0 " << g_rows[cindex] << endl;
}
#ifdef TIMING_OUTPUT
app_time.start();
#endif
probeop.Apply(probevec, Scol);
#ifdef TIMING_OUTPUT
app_time.stop();
#endif
// Reset the probevec to all zeros.
for (int k = 0; k < nvectors; k++)
{
cindex = k+i;
probevec.ReplaceGlobalValue(g_rows[cindex], k, 0.0);
}
Scol.MaxValue(maxvalue);
nentries = 0;
for (int j = 0 ; j < g_localElems ; j++)
{
for (int k = 0; k < nvectors; k++)
{
cindex = k+i;
vecvalues = Scol[k];
if ((g_rows[cindex] == g_rows[j]) ||
(abs(vecvalues[j]/maxvalue[k]) > relative_thres))
// diagonal entry or large entry.
{
values[nentries] = vecvalues[j];