slepc-main 2024-11-09
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SVDSolve

Solves the singular value problem.

Synopsis

#include "slepcsvd.h" 
PetscErrorCode SVDSolve(SVD svd)
Collective

Input Parameter

svd  - singular value solver context obtained from SVDCreate()

Options Database Keys

-svd_view  - print information about the solver used
-svd_view_mat0  - view the first matrix (A)
-svd_view_mat1  - view the second matrix (B)
-svd_view_signature  - view the signature matrix (omega)
-svd_view_vectors  - view the computed singular vectors
-svd_view_values  - view the computed singular values
-svd_converged_reason  - print reason for convergence, and number of iterations
-svd_error_absolute  - print absolute errors of each singular triplet
-svd_error_relative  - print relative errors of each singular triplet
-svd_error_norm  - print errors relative to the matrix norms of each singular triplet

Notes

All the command-line options listed above admit an optional argument specifying the viewer type and options. For instance, use '-svd_view_mat0 binary:amatrix.bin' to save the A matrix to a binary file, '-svd_view_values draw' to draw the computed singular values graphically, or '-svd_error_relative :myerr.m:ascii_matlab' to save the errors in a file that can be executed in Matlab.

See Also

SVDCreate(), SVDSetUp(), SVDDestroy()

Level

beginner

Location

src/svd/interface/svdsolve.c

Examples

src/svd/tutorials/ex8.c
src/svd/tutorials/ex14.c
src/svd/tutorials/ex15.c
src/svd/tutorials/ex15f.F90
src/svd/tutorials/ex45.c
src/svd/tutorials/ex48.c
src/svd/tutorials/ex51.c
src/svd/tutorials/ex52.c
src/svd/tutorials/ex53.c
src/svd/tutorials/cnetwork/embedgsvd.c


Index of all SVD routines
Table of Contents for all manual pages
Index of all manual pages