PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(SVDStoppingTestFn)(SVD svd,PetscInt its,PetscInt max_it,PetscInt nconv,PetscInt nsv,SVDConvergedReason *reason,void *ctx);
| svd | - singular value solver context obtained from SVDCreate() | |
| its | - current number of iterations | |
| max_it | - maximum number of iterations | |
| nconv | - number of currently converged singular triplets | |
| nsv | - number of requested singular triplets | |
| reason | - [output] result of the stopping test | |
| ctx | - [optional] user-defined context for private data for the stopping test routine (may be NULL) |