KSPCGLS

Conjugate Gradient method for Least-Squares problems. Supports non-square (rectangular) matrices.

Note

This does not use the preconditioner, so one should probably use KSPLSQR instead.

See PETSCREGRESSORLINEAR for a general toolkit for linear regression, include least squares.

See Also

KSP: Linear System Solvers, KSPLSQR, KSPCreate(), KSPSetType(), KSPType, KSP, KSPCGSetType(), KSPCGUseSingleReduction(), KSPPIPECG, KSPGROPPCG, PETSCREGRESSORLINEAR

Level

beginner

Location

src/ksp/ksp/impls/cg/cgls.c

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