PEXSI::UBlock< T > Struct Template Reference

UBlock stores a nonzero block in the upper triangular part in PSelInv. More...

#include <pselinv.hpp>

Public Member Functions
UBlock &	operator= (const UBlock &UB)

Public Attributes
Int	blockIdx
	Block index (supernodal index)
Int	numRow
	Number of nonzero rows.
Int	numCol
	Number of nonzero columns.
IntNumVec	cols
	Dimension numRow * 1, index (0-based) for the number of nonzero rows.
NumMat< T >	nzval
	Dimension numRow * numCol, nonzero elements.

Friends
std::ostream &	operator<< (std::ostream &out, const UBlock &vec)

Detailed Description

template<typename T>
struct PEXSI::UBlock< T >

UBlock stores a nonzero block in the upper triangular part in PSelInv.

In particular, the current version of PSelInv is for sparse symmetric matrices. All UBlocks, labeled as U(i,j), i<j save the redundant information as saved in L(j,i). The purpose of having UBlocks is to facilitate the communication.

See Also

PMatrix::SelInv

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The documentation for this struct was generated from the following file:

• include/pexsi/pselinv.hpp