Extracts main diagonal of matrix. More...
#include "slu_ddefs.h"
Include dependency graph for dGetDiagU.c:
Functions | |
| void | dGetDiagU (SuperMatrix *L, double *diagU) |
Detailed Description
-- Auxiliary routine in SuperLU (version 2.0) --
Lawrence Berkeley National Lab, Univ. of California Berkeley.
Xiaoye S. Li
September 11, 2003
Purpose
=======
GetDiagU extracts the main diagonal of matrix U of the LU factorization.
Arguments
=========
L (input) SuperMatrix*
The factor L from the factorization Pr*A*Pc=L*U as computed by
dgstrf(). Use compressed row subscripts storage for supernodes,
i.e., L has types: Stype = SLU_SC, Dtype = SLU_D, Mtype = SLU_TRLU.
diagU (output) double*, dimension (n)
The main diagonal of matrix U.
Note
====
The diagonal blocks of the L and U matrices are stored in the L
data structures.
Function Documentation
◆ dGetDiagU()
| void dGetDiagU | ( | SuperMatrix * | L, |
| double * | diagU | ||
| ) |
