PETSc version 3.17.4
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# PCHPDDMShellMatApply

Variant of PCHPDDMShellApply() for blocks of vectors.

### Synopsis

    #include "petscpc.h"
    static PetscErrorCode PCHPDDMShellMatApply(PC pc, Mat X, Mat Y)

### Input Parameters

| pc | - preconditioner context
| X | - block of input vectors

### Output Parameter

| Y | - block of output vectors

Application Interface Routine: PCApply()

### See Also

PCHPDDM, PCHPDDMShellMatApply(), PCHPDDMCoarseCorrectionType

### Level

advanced

### Location

src/ksp/pc/impls/hpddm/hpddm.cxx
Index of all PC routines
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Index of all manual pages