petsc-master 2019-12-13
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PCHPDDMSetAuxiliaryMat

Sets the auxiliary matrix used by PCHPDDM for the concurrent GenEO eigenproblems at the finest level. As an example, in a finite element context with nonoverlapping subdomains plus (overlapping) ghost elements, this could be the unassembled (Neumann) local overlapping operator. As opposed to the assembled (Dirichlet) local overlapping operator obtained by summing neighborhood contributions at the interface of ghost elements.

Input Parameters

pc - preconditioner context
is - index set of the local auxiliary, e.g., Neumann, matrix
A - auxiliary sequential matrix
setup - function for generating the auxiliary matrix
setup_ctx - context for setup

See Also

PCCreate(), PCSetType(), PCType (for list of available types), PC, MATIS

Level

intermediate

Location

src/ksp/pc/impls/hpddm/hpddm.cxx

Examples

src/ksp/ksp/examples/tutorials/ex76.c.html

Implementations

PCHPDDMSetAuxiliaryMat_HPDDM(PC pc, IS is, Mat A, PetscErrorCode (*setup) in src/ksp/pc/impls/hpddm/hpddm.cxx

Index of all PC routines
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Index of all manual pages