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Addtional routines for Lanczos (SYM2, Chebyshef)..

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This commit is contained in:
Jung
2016-01-25 01:26:25 -05:00
parent 5c57d4f403
commit b8fb05a422
5 changed files with 66 additions and 11 deletions
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11
lib/algorithms/iterative/EigenSort.h
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@@ -38,6 +38,8 @@ template<class Field>
class SortEigen {
private:
//hacking for testing for now
#if 0
static bool less_lmd(RealD left,RealD right){
return fabs(left) < fabs(right);
}
@@ -45,6 +47,15 @@ class SortEigen {
std::pair<RealD,Field>& right){
return fabs(left.first) < fabs(right.first);
}
#else
static bool less_lmd(RealD left,RealD right){
return left > right;
}
static bool less_pair(std::pair<RealD,Field>& left,
std::pair<RealD,Field>& right){
return left.first > (right.first);
}
#endif
public:

8
lib/algorithms/iterative/ImplicitlyRestartedLanczos.h
View File

@@ -241,20 +241,15 @@ public:
double evals_tmp[NN];
double evec_tmp[NN][NN];
memset(evec_tmp[0],0,sizeof(double)*NN*NN);
double AA[NN][NN];
// double AA[NN][NN];
double DD[NN];
double EE[NN];
memset(AA, 0, sizeof(double)*NN*NN);
// memset(ZZ, 0, sizeof(double)*NN*NN);
for (int i = 0; i< NN; i++)
for (int j = i - 1; j <= i + 1; j++)
if ( j < NN && j >= 0 ) {
// AA[i][j] = AH(i,j);
if (i==j) DD[i] = lmd[i];
if (i==j) evals_tmp[i] = lmd[i];
if (j==(i-1)) EE[j] = lme[j];
// if (i<20 && j<20)
// std:: cout << "AA["<<i<<"]["<<j<<"]="<<AA[i][j]<<endl;
}
int evals_found;
int lwork = ( (18*NN) > (1+4*NN+NN*NN)? (18*NN):(1+4*NN+NN*NN)) ;
@@ -301,7 +296,6 @@ public:
}
}
{
// TIMER("QMP_sum_double_array");
// QMP_sum_double_array(evals_tmp,NN);
// QMP_sum_double_array((double *)evec_tmp,NN*NN);
_fgrid.GlobalSumVector(evals_tmp,NN);