MATSHELL#
MATSHELL = “shell” - A matrix type to be used to define your own matrix type with its own data structure – perhaps matrix-free.
Notes#
See MatCreateShell() for details on the usage of MATSHELL
PCSHELL can be used in conjunction with MATSHELL to provide a custom preconditioner appropriate for your MATSHELL. Since
many standard preconditioners such as PCILU depend on having an explicit representation of the matrix entries they cannot be used
directly with MATSHELL.
See Also#
Matrices, Mat, MatCreateShell(), PCSHELL
Level#
advanced
Location#
Examples#
src/tao/leastsquares/tutorials/tomography.c
src/ts/tutorials/ex50.c
src/snes/tutorials/ex12.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages