SVDMonitorFirst#
Print the first unconverged approximate value and error estimate at each iteration of the singular value solver.
Synopsis#
#include "slepcsvd.h"
PetscErrorCode SVDMonitorFirst(SVD svd,PetscInt its,PetscInt nconv,PetscReal sigma[],PetscReal errest[],PetscInt nest,PetscViewerAndFormat *vf)
Collective
Input Parameters#
svd - the singular value solver context
its - iteration number
nconv - number of converged singular triplets so far
sigma - singular values
errest - error estimates
nest - number of error estimates to display
vf - viewer and format for monitoring
Options Database Key#
-svd_monitor - activates
SVDMonitorFirst()
Note#
This is not called directly by users, rather one calls SVDMonitorSet(), with this
function as an argument, to cause the monitor to be used during the SVD solve.
See Also#
SVD: Singular Value Decomposition, SVDMonitorSet(), SVDMonitorAll(), SVDMonitorConditioning(), SVDMonitorConverged()
Level#
intermediate
Location#
Index of all SVD routines Table of Contents for all manual pages Index of all manual pages