#include "slepcsvd.h" PetscErrorCode SVDSetConvergenceTest(SVD svd,SVDConv conv)Logically Collective
| svd | - singular value solver context obtained from SVDCreate() | |
| conv | - the type of convergence test |
| -svd_conv_abs | - Sets the absolute convergence test | |
| -svd_conv_rel | - Sets the convergence test relative to the singular value | |
| -svd_conv_norm | - Sets the convergence test relative to the matrix norm | |
| -svd_conv_maxit | - Forces the maximum number of iterations as set by -svd_max_it | |
| -svd_conv_user | - Selects the user-defined convergence test |
| SVD_CONV_ABS | - absolute error ||r|| | |
| SVD_CONV_REL | - error relative to the singular value sigma, ||r||/sigma | |
| SVD_CONV_NORM | - error relative to the matrix norms, ||r||/||Z||, with Z=A or Z=[A;B] | |
| SVD_CONV_MAXIT | - no convergence until maximum number of iterations has been reached | |
| SVD_CONV_USER | - function set by SVDSetConvergenceTestFunction() |
The default in standard SVD is SVD_CONV_REL, while in GSVD the default is SVD_CONV_NORM.