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PCMAT#

A preconditioner obtained by multiplying by the preconditioner matrix supplied in PCSetOperators() or KSPSetOperators()

Note#

This one is a little strange. One rarely has an explicit matrix that approximates the inverse of the matrix they wish to solve for.

See Also#

PCCreate(), PCSetType(), PCType, PC, PCSHELL

Level#

intermediate

Location#

src/ksp/pc/impls/mat/pcmat.c


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

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© Copyright 1991-2023, UChicago Argonne, LLC and the PETSc Development Team.

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Last updated on 2023-03-30T10:44:47-0500 (v3.18.6).