Date: 2026-05-01T06:11:54+00:00

Actual source code: pbjacobi.h

      1: #pragma once

      3: #include <petsc/private/pcimpl.h>

      5: /*
      6:    Private context (data structure) for the PBJacobi preconditioner.
      7: */
      8: typedef struct {
      9:   const MatScalar *diag;
     10:   PetscInt         bs, mbs; /* block size (bs), and number of blocks (mbs) */
     11:   Mat              diagPB;  /* the matrix made of the diagonal blocks if some shell smatrix provided it; otherwise, NULL. Need to destroy it after use */
     12:   void            *spptr;   /* opaque pointer to a device data structure */
     13: } PC_PBJacobi;

     15: #if defined(PETSC_HAVE_CUDA)
     16: PETSC_INTERN PetscErrorCode PCSetUp_PBJacobi_CUDA(PC, Mat);
     17: #endif

     19: #if defined(PETSC_HAVE_KOKKOS_KERNELS)
     20: PETSC_INTERN PetscErrorCode PCSetUp_PBJacobi_Kokkos(PC, Mat);
     21: #endif

     23: PETSC_INTERN PetscErrorCode PCSetUp_PBJacobi_Host(PC, Mat);
     24: PETSC_INTERN PetscErrorCode PCDestroy_PBJacobi(PC);