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updates for deflation in the RB solver

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paboyle
2018-02-20 14:28:38 +00:00
parent c96483e3bd
commit 945684c470
4 changed files with 30 additions and 39 deletions
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19
lib/algorithms/iterative/ImplicitlyRestartedLanczos.h
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@ -149,19 +149,6 @@ void basisSortInPlace(std::vector<Field> & _v,std::vector<RealD>& sort_vals, boo
basisReorderInPlace(_v,sort_vals,idx);
}
// PAB: faster to compute the inner products first then fuse loops.
// If performance critical can improve.
template<class Field>
void basisDeflate(const std::vector<Field> &_v,const std::vector<RealD>& eval,const Field& src_orig,Field& result) {
result = zero;
assert(_v.size()==eval.size());
int N = (int)_v.size();
for (int i=0;i<N;i++) {
Field& tmp = _v[i];
axpy(result,TensorRemove(innerProduct(tmp,src_orig)) / eval[i],tmp,result);
}
}
/////////////////////////////////////////////////////////////
// Implicitly restarted lanczos
/////////////////////////////////////////////////////////////
@ -245,12 +232,6 @@ class ImplicitlyRestartedLanczos {
public:
static void Deflate(const std::vector<Field> &_v,
const std::vector<RealD>& eval,
const Field& src_orig,Field& result) {
basisDeflate(_v,eval,src_orig,result);
}
//////////////////////////////////////////////////////////////////
// PAB:
//////////////////////////////////////////////////////////////////