/usr/lib/petscdir/3.7.7/x86_64-linux-gnu-real-debug/include/petsc/private/dmpleximpl.h is in libpetsc3.7.7-dbg 3.7.7+dfsg1-2build5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#define _PLEXIMPL_H
#include <petscmat.h> /*I "petscmat.h" I*/
#include <petscdmplex.h> /*I "petscdmplex.h" I*/
#include <petscbt.h>
#include <petscsf.h>
#include <petsc/private/dmimpl.h>
#include <petsc/private/isimpl.h> /* for inline access to atlasOff */
#include <../src/sys/utils/hash.h>
PETSC_EXTERN PetscLogEvent DMPLEX_Interpolate, PETSCPARTITIONER_Partition, DMPLEX_Distribute, DMPLEX_DistributeCones, DMPLEX_DistributeLabels, DMPLEX_DistributeSF, DMPLEX_DistributeOverlap, DMPLEX_DistributeField, DMPLEX_DistributeData, DMPLEX_Migrate, DMPLEX_GlobalToNaturalBegin, DMPLEX_GlobalToNaturalEnd, DMPLEX_NaturalToGlobalBegin, DMPLEX_NaturalToGlobalEnd, DMPLEX_Stratify, DMPLEX_Preallocate, DMPLEX_ResidualFEM, DMPLEX_JacobianFEM, DMPLEX_InterpolatorFEM, DMPLEX_InjectorFEM, DMPLEX_IntegralFEM, DMPLEX_CreateGmsh;
PETSC_EXTERN PetscBool PetscPartitionerRegisterAllCalled;
PETSC_EXTERN PetscErrorCode PetscPartitionerRegisterAll(void);
PETSC_EXTERN PetscErrorCode PetscPartitionerSetTypeFromOptions_Internal(PetscPartitioner);
typedef enum {REFINER_NOOP = 0,
REFINER_SIMPLEX_1D,
REFINER_SIMPLEX_2D,
REFINER_HYBRID_SIMPLEX_2D,
REFINER_HEX_2D,
REFINER_HYBRID_HEX_2D,
REFINER_SIMPLEX_3D,
REFINER_HYBRID_SIMPLEX_3D,
REFINER_HEX_3D,
REFINER_HYBRID_HEX_3D} CellRefiner;
typedef struct _PetscPartitionerOps *PetscPartitionerOps;
struct _PetscPartitionerOps {
PetscErrorCode (*setfromoptions)(PetscPartitioner);
PetscErrorCode (*setup)(PetscPartitioner);
PetscErrorCode (*view)(PetscPartitioner,PetscViewer);
PetscErrorCode (*destroy)(PetscPartitioner);
PetscErrorCode (*partition)(PetscPartitioner, DM, PetscInt, PetscInt, PetscInt[], PetscInt[], PetscSection, IS *);
};
struct _p_PetscPartitioner {
PETSCHEADER(struct _PetscPartitionerOps);
void *data; /* Implementation object */
PetscInt height; /* Height of points to partition into non-overlapping subsets */
};
typedef struct {
PetscInt dummy;
} PetscPartitioner_Chaco;
typedef struct {
PetscInt dummy;
} PetscPartitioner_ParMetis;
typedef struct {
PetscSection section; /* Sizes for each partition */
IS partition; /* Points in each partition */
} PetscPartitioner_Shell;
typedef struct {
PetscInt dummy;
} PetscPartitioner_Simple;
typedef struct {
PetscInt dummy;
} PetscPartitioner_Gather;
/* Utility struct to store the contents of a Gmsh file in memory */
typedef struct {
PetscInt dim; /* Entity dimension */
PetscInt id; /* Element number */
PetscInt numNodes; /* Size of node array */
int nodes[8]; /* Node array */
PetscInt numTags; /* Size of tag array */
int tags[4]; /* Tag array */
} GmshElement;
/* Utility struct to store the contents of a Fluent file in memory */
typedef struct {
int index; /* Type of section */
int zoneID;
int first;
int last;
int type;
int nd; /* Either ND or element-type */
void *data;
} FluentSection;
struct _PetscGridHash {
PetscInt dim;
PetscReal lower[3]; /* The lower-left corner */
PetscReal upper[3]; /* The upper-right corner */
PetscReal extent[3]; /* The box size */
PetscReal h[3]; /* The subbox size */
PetscInt n[3]; /* The number of subboxes */
PetscSection cellSection; /* Offsets for cells in each subbox*/
IS cells; /* List of cells in each subbox */
DMLabel cellsSparse; /* Sparse storage for cell map */
};
typedef struct {
PetscInt refct;
/* Sieve */
PetscSection coneSection; /* Layout of cones (inedges for DAG) */
PetscInt maxConeSize; /* Cached for fast lookup */
PetscInt *cones; /* Cone for each point */
PetscInt *coneOrientations; /* Orientation of each cone point, means cone traveral should start on point 'o', and if negative start on -(o+1) and go in reverse */
PetscSection supportSection; /* Layout of cones (inedges for DAG) */
PetscInt maxSupportSize; /* Cached for fast lookup */
PetscInt *supports; /* Cone for each point */
PetscBool refinementUniform; /* Flag for uniform cell refinement */
PetscReal refinementLimit; /* Maximum volume for refined cell */
PetscErrorCode (*refinementFunc)(const PetscReal [], PetscReal *); /* Function giving the maximum volume for refined cell */
PetscInt hybridPointMax[8]; /* Allow segregation of some points, each dimension has a divider (used in VTK output and refinement) */
PetscInt *facesTmp; /* Work space for faces operation */
/* Hierarchy */
PetscBool regularRefinement; /* This flag signals that we are a regular refinement of coarseMesh */
/* Generation */
char *tetgenOpts;
char *triangleOpts;
PetscPartitioner partitioner;
/* Submesh */
DMLabel subpointMap; /* Label each original mesh point in the submesh with its depth, subpoint are the implicit numbering */
/* Labels and numbering */
PetscObjectState depthState; /* State of depth label, so that we can determine if a user changes it */
IS globalVertexNumbers;
IS globalCellNumbers;
/* Constraints */
PetscSection anchorSection; /* maps constrained points to anchor points */
IS anchorIS; /* anchors indexed by the above section */
PetscErrorCode (*createanchors)(DM); /* automatically compute anchors (probably from tree constraints) */
PetscErrorCode (*computeanchormatrix)(DM,PetscSection,PetscSection,Mat);
/* Tree: automatically construct constraints for hierarchically non-conforming meshes */
PetscSection parentSection; /* dof == 1 if point has parent */
PetscInt *parents; /* point to parent */
PetscInt *childIDs; /* point to child ID */
PetscSection childSection; /* inverse of parent section */
PetscInt *children; /* point to children */
DM referenceTree; /* reference tree to which child ID's refer */
PetscErrorCode (*getchildsymmetry)(DM,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt*,PetscInt*);
/* Adjacency */
PetscBool useCone; /* Use cone() first when defining adjacency */
PetscBool useClosure; /* Use the transitive closure when defining adjacency */
PetscBool useAnchors; /* Replace constrained points with their anchors in adjacency lists */
/* Projection */
PetscInt maxProjectionHeight; /* maximum height of cells used in DMPlexProject functions */
/* Output */
PetscInt vtkCellHeight; /* The height of cells for output, default is 0 */
PetscReal scale[NUM_PETSC_UNITS]; /* The scale for each SI unit */
/* Geometry */
PetscReal minradius; /* Minimum distance from cell centroid to face */
PetscBool useHashLocation; /* Use grid hashing for point location */
PetscGridHash lbox; /* Local box for searching */
/* Debugging */
PetscBool printSetValues;
PetscInt printFEM;
PetscReal printTol;
} DM_Plex;
PETSC_EXTERN PetscErrorCode DMPlexVTKWriteAll_VTU(DM,PetscViewer);
PETSC_EXTERN PetscErrorCode DMPlexVTKGetCellType(DM,PetscInt,PetscInt,PetscInt*);
PETSC_EXTERN PetscErrorCode VecView_Plex_Local(Vec,PetscViewer);
PETSC_EXTERN PetscErrorCode VecView_Plex_Native(Vec,PetscViewer);
PETSC_EXTERN PetscErrorCode VecView_Plex(Vec,PetscViewer);
PETSC_EXTERN PetscErrorCode VecLoad_Plex_Local(Vec,PetscViewer);
PETSC_EXTERN PetscErrorCode VecLoad_Plex_Native(Vec,PetscViewer);
PETSC_EXTERN PetscErrorCode VecLoad_Plex(Vec,PetscViewer);
PETSC_EXTERN PetscErrorCode DMPlexGetFieldType_Internal(DM, PetscSection, PetscInt, PetscInt *, PetscInt *, PetscViewerVTKFieldType *);
#if defined(PETSC_HAVE_HDF5)
PETSC_EXTERN PetscErrorCode VecView_Plex_Local_HDF5(Vec, PetscViewer);
PETSC_EXTERN PetscErrorCode VecView_Plex_HDF5(Vec, PetscViewer);
PETSC_EXTERN PetscErrorCode VecLoad_Plex_HDF5(Vec, PetscViewer);
PETSC_EXTERN PetscErrorCode VecView_Plex_HDF5_Native(Vec, PetscViewer);
PETSC_EXTERN PetscErrorCode VecLoad_Plex_HDF5_Native(Vec, PetscViewer);
PETSC_EXTERN PetscErrorCode DMPlexView_HDF5(DM, PetscViewer);
PETSC_EXTERN PetscErrorCode DMPlexLoad_HDF5(DM, PetscViewer);
#endif
PETSC_EXTERN PetscErrorCode DMPlexGetAdjacency_Internal(DM,PetscInt,PetscBool,PetscBool,PetscBool,PetscInt*,PetscInt*[]);
PETSC_EXTERN PetscErrorCode DMPlexGetFaces_Internal(DM,PetscInt,PetscInt,PetscInt*,PetscInt*,const PetscInt*[]);
PETSC_EXTERN PetscErrorCode DMPlexGetRawFaces_Internal(DM,PetscInt,PetscInt,const PetscInt[], PetscInt*,PetscInt*,const PetscInt*[]);
PETSC_EXTERN PetscErrorCode DMPlexRestoreFaces_Internal(DM,PetscInt,PetscInt,PetscInt*,PetscInt*,const PetscInt*[]);
PETSC_EXTERN PetscErrorCode DMPlexRefineUniform_Internal(DM,CellRefiner,DM*);
PETSC_EXTERN PetscErrorCode DMPlexGetCellRefiner_Internal(DM,CellRefiner*);
PETSC_EXTERN PetscErrorCode CellRefinerGetAffineTransforms_Internal(CellRefiner, PetscInt *, PetscReal *[], PetscReal *[], PetscReal *[]);
PETSC_EXTERN PetscErrorCode CellRefinerRestoreAffineTransforms_Internal(CellRefiner, PetscInt *, PetscReal *[], PetscReal *[], PetscReal *[]);
PETSC_EXTERN PetscErrorCode CellRefinerInCellTest_Internal(CellRefiner, const PetscReal[], PetscBool *);
PETSC_EXTERN PetscErrorCode DMPlexCreateGmsh_ReadElement(PetscViewer, PetscInt, PetscBool, PetscBool, GmshElement **);
PETSC_EXTERN PetscErrorCode DMPlexInvertCell_Internal(PetscInt, PetscInt, PetscInt[]);
PETSC_EXTERN PetscErrorCode DMPlexVecSetFieldClosure_Internal(DM, PetscSection, Vec, PetscBool[], PetscInt, const PetscScalar[], InsertMode);
PETSC_EXTERN PetscErrorCode DMPlexProjectConstraints_Internal(DM, Vec, Vec);
PETSC_EXTERN PetscErrorCode DMSetFromOptions_NonRefinement_Plex(PetscOptionItems*,DM);
PETSC_EXTERN PetscErrorCode DMPlexLabelComplete_Internal(DM,DMLabel,PetscBool);
PETSC_EXTERN PetscErrorCode DMPlexCreateReferenceTree_Union(DM,DM,const char *,DM*);
PETSC_EXTERN PetscErrorCode DMPlexComputeInterpolatorTree(DM,DM,PetscSF,PetscInt *,Mat);
PETSC_EXTERN PetscErrorCode DMPlexComputeInjectorTree(DM,DM,PetscSF,PetscInt *,Mat);
PETSC_EXTERN PetscErrorCode DMPlexAnchorsModifyMat(DM,PetscSection,PetscInt,PetscInt,const PetscInt*,const PetscScalar*,PetscInt*,PetscInt*,PetscInt**,PetscScalar**,PetscInt*,PetscBool);
PETSC_EXTERN PetscErrorCode indicesPoint_private(PetscSection,PetscInt,PetscInt,PetscInt *,PetscBool,PetscInt,PetscInt []);
PETSC_EXTERN PetscErrorCode indicesPointFields_private(PetscSection,PetscInt,PetscInt,PetscInt [],PetscBool,PetscInt,PetscInt []);
PETSC_EXTERN PetscErrorCode DMPlexLocatePoint_Internal(DM,PetscInt,const PetscScalar [],PetscInt,PetscInt *);
PETSC_INTERN PetscErrorCode DMPlexCreateCellNumbering_Internal(DM, PetscBool, IS *);
PETSC_INTERN PetscErrorCode DMPlexCreateVertexNumbering_Internal(DM, PetscBool, IS *);
#undef __FUNCT__
#define __FUNCT__ "DihedralInvert"
/* invert dihedral symmetry: return a^-1,
* using the representation described in
* DMPlexGetConeOrientation() */
PETSC_STATIC_INLINE PetscInt DihedralInvert(PetscInt N, PetscInt a)
{
return (a <= 0) ? a : (N - a);
}
#undef __FUNCT__
#define __FUNCT__ "DihedralCompose"
/* invert dihedral symmetry: return b * a,
* using the representation described in
* DMPlexGetConeOrientation() */
PETSC_STATIC_INLINE PetscInt DihedralCompose(PetscInt N, PetscInt a, PetscInt b)
{
if (!N) return 0;
return (a >= 0) ?
((b >= 0) ? ((a + b) % N) : -(((a - b - 1) % N) + 1)) :
((b >= 0) ? -(((N - b - a - 1) % N) + 1) : ((N + b - a) % N));
}
#undef __FUNCT__
#define __FUNCT__ "DihedralSwap"
/* swap dihedral symmetries: return b * a^-1,
* using the representation described in
* DMPlexGetConeOrientation() */
PETSC_STATIC_INLINE PetscInt DihedralSwap(PetscInt N, PetscInt a, PetscInt b)
{
return DihedralCompose(N,DihedralInvert(N,a),b);
}
PETSC_EXTERN PetscErrorCode DMPlexComputeResidual_Internal(DM, PetscInt, PetscInt, PetscReal, Vec, Vec, Vec, void *);
PETSC_EXTERN PetscErrorCode DMPlexComputeJacobian_Internal(DM, PetscInt, PetscInt, PetscReal, PetscReal, Vec, Vec, Mat, Mat,void *);
#undef __FUNCT__
#define __FUNCT__ "DMPlex_Invert2D_Internal"
PETSC_STATIC_INLINE void DMPlex_Invert2D_Internal(PetscReal invJ[], PetscReal J[], PetscReal detJ)
{
const PetscReal invDet = 1.0/detJ;
invJ[0] = invDet*J[3];
invJ[1] = -invDet*J[1];
invJ[2] = -invDet*J[2];
invJ[3] = invDet*J[0];
(void)PetscLogFlops(5.0);
}
#undef __FUNCT__
#define __FUNCT__ "DMPlex_Invert3D_Internal"
PETSC_STATIC_INLINE void DMPlex_Invert3D_Internal(PetscReal invJ[], PetscReal J[], PetscReal detJ)
{
const PetscReal invDet = 1.0/detJ;
invJ[0*3+0] = invDet*(J[1*3+1]*J[2*3+2] - J[1*3+2]*J[2*3+1]);
invJ[0*3+1] = invDet*(J[0*3+2]*J[2*3+1] - J[0*3+1]*J[2*3+2]);
invJ[0*3+2] = invDet*(J[0*3+1]*J[1*3+2] - J[0*3+2]*J[1*3+1]);
invJ[1*3+0] = invDet*(J[1*3+2]*J[2*3+0] - J[1*3+0]*J[2*3+2]);
invJ[1*3+1] = invDet*(J[0*3+0]*J[2*3+2] - J[0*3+2]*J[2*3+0]);
invJ[1*3+2] = invDet*(J[0*3+2]*J[1*3+0] - J[0*3+0]*J[1*3+2]);
invJ[2*3+0] = invDet*(J[1*3+0]*J[2*3+1] - J[1*3+1]*J[2*3+0]);
invJ[2*3+1] = invDet*(J[0*3+1]*J[2*3+0] - J[0*3+0]*J[2*3+1]);
invJ[2*3+2] = invDet*(J[0*3+0]*J[1*3+1] - J[0*3+1]*J[1*3+0]);
(void)PetscLogFlops(37.0);
}
#undef __FUNCT__
#define __FUNCT__ "DMPlex_Det2D_Internal"
PETSC_STATIC_INLINE void DMPlex_Det2D_Internal(PetscReal *detJ, PetscReal J[])
{
*detJ = J[0]*J[3] - J[1]*J[2];
(void)PetscLogFlops(3.0);
}
#undef __FUNCT__
#define __FUNCT__ "DMPlex_Det3D_Internal"
PETSC_STATIC_INLINE void DMPlex_Det3D_Internal(PetscReal *detJ, PetscReal J[])
{
*detJ = (J[0*3+0]*(J[1*3+1]*J[2*3+2] - J[1*3+2]*J[2*3+1]) +
J[0*3+1]*(J[1*3+2]*J[2*3+0] - J[1*3+0]*J[2*3+2]) +
J[0*3+2]*(J[1*3+0]*J[2*3+1] - J[1*3+1]*J[2*3+0]));
(void)PetscLogFlops(12.0);
}
#undef __FUNCT__
#define __FUNCT__ "DMPlex_WaxpyD_Internal"
PETSC_STATIC_INLINE void DMPlex_WaxpyD_Internal(PetscInt dim, PetscReal a, const PetscReal *x, const PetscReal *y, PetscReal *w) {PetscInt d; for (d = 0; d < dim; ++d) w[d] = a*x[d] + y[d];}
#undef __FUNCT__
#define __FUNCT__ "DMPlex_DotD_Internal"
PETSC_STATIC_INLINE PetscReal DMPlex_DotD_Internal(PetscInt dim, const PetscScalar *x, const PetscReal *y) {PetscReal sum = 0.0; PetscInt d; for (d = 0; d < dim; ++d) sum += PetscRealPart(x[d])*y[d]; return sum;}
#undef __FUNCT__
#define __FUNCT__ "DMPlex_DotRealD_Internal"
PETSC_STATIC_INLINE PetscReal DMPlex_DotRealD_Internal(PetscInt dim, const PetscReal *x, const PetscReal *y) {PetscReal sum = 0.0; PetscInt d; for (d = 0; d < dim; ++d) sum += x[d]*y[d]; return sum;}
#undef __FUNCT__
#define __FUNCT__ "DMPlex_NormD_Internal"
PETSC_STATIC_INLINE PetscReal DMPlex_NormD_Internal(PetscInt dim, const PetscReal *x) {PetscReal sum = 0.0; PetscInt d; for (d = 0; d < dim; ++d) sum += x[d]*x[d]; return PetscSqrtReal(sum);}
#undef __FUNCT__
#define __FUNCT__ "DMPlexGetLocalOffset_Private"
PETSC_STATIC_INLINE PetscErrorCode DMPlexGetLocalOffset_Private(DM dm, PetscInt point, PetscInt *start, PetscInt *end)
{
PetscFunctionBeginHot;
#if defined(PETSC_USE_DEBUG)
{
PetscInt dof;
PetscErrorCode ierr;
*start = *end = 0; /* Silence overzealous compiler warning */
if (!dm->defaultSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a default Section, see DMSetDefaultSection()");
ierr = PetscSectionGetOffset(dm->defaultSection, point, start);CHKERRQ(ierr);
ierr = PetscSectionGetDof(dm->defaultSection, point, &dof);CHKERRQ(ierr);
*end = *start + dof;
}
#else
{
const PetscSection s = dm->defaultSection;
*start = s->atlasOff[point - s->pStart];
*end = *start + s->atlasDof[point - s->pStart];
}
#endif
PetscFunctionReturn(0);
}
#undef __FUNCT__
#define __FUNCT__ "DMPlexGetLocalFieldOffset_Private"
PETSC_STATIC_INLINE PetscErrorCode DMPlexGetLocalFieldOffset_Private(DM dm, PetscInt point, PetscInt field, PetscInt *start, PetscInt *end)
{
PetscFunctionBegin;
#if defined(PETSC_USE_DEBUG)
{
PetscInt dof;
PetscErrorCode ierr;
*start = *end = 0; /* Silence overzealous compiler warning */
if (!dm->defaultSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a default Section, see DMSetDefaultSection()");
ierr = PetscSectionGetFieldOffset(dm->defaultSection, point, field, start);CHKERRQ(ierr);
ierr = PetscSectionGetFieldDof(dm->defaultSection, point, field, &dof);CHKERRQ(ierr);
*end = *start + dof;
}
#else
{
const PetscSection s = dm->defaultSection->field[field];
*start = s->atlasOff[point - s->pStart];
*end = *start + s->atlasDof[point - s->pStart];
}
#endif
PetscFunctionReturn(0);
}
#undef __FUNCT__
#define __FUNCT__ "DMPlexGetGlobalOffset_Private"
PETSC_STATIC_INLINE PetscErrorCode DMPlexGetGlobalOffset_Private(DM dm, PetscInt point, PetscInt *start, PetscInt *end)
{
PetscFunctionBegin;
#if defined(PETSC_USE_DEBUG)
{
PetscErrorCode ierr;
PetscInt dof,cdof;
*start = *end = 0; /* Silence overzealous compiler warning */
if (!dm->defaultSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a default Section, see DMSetDefaultSection()");
if (!dm->defaultGlobalSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a default global Section. It will be created automatically by DMGetDefaultGlobalSection()");
ierr = PetscSectionGetOffset(dm->defaultGlobalSection, point, start);CHKERRQ(ierr);
ierr = PetscSectionGetDof(dm->defaultGlobalSection, point, &dof);CHKERRQ(ierr);
ierr = PetscSectionGetConstraintDof(dm->defaultGlobalSection, point, &cdof);CHKERRQ(ierr);
*end = *start + dof - cdof + (dof < 0 ? 1 : 0);
}
#else
{
const PetscSection s = dm->defaultGlobalSection;
const PetscInt dof = s->atlasDof[point - s->pStart];
const PetscInt cdof = s->bc ? s->bc->atlasDof[point - s->bc->pStart] : 0;
*start = s->atlasOff[point - s->pStart];
*end = *start + dof - cdof + (dof < 0 ? 1 : 0);
}
#endif
PetscFunctionReturn(0);
}
#undef __FUNCT__
#define __FUNCT__ "DMPlexGetGlobalFieldOffset_Private"
PETSC_STATIC_INLINE PetscErrorCode DMPlexGetGlobalFieldOffset_Private(DM dm, PetscInt point, PetscInt field, PetscInt *start, PetscInt *end)
{
PetscFunctionBegin;
#if defined(PETSC_USE_DEBUG)
{
PetscInt loff, lfoff, fdof, fcdof, ffcdof, f;
PetscErrorCode ierr;
*start = *end = 0; /* Silence overzealous compiler warning */
if (!dm->defaultSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a default Section, see DMSetDefaultSection()");
if (!dm->defaultGlobalSection) SETERRQ(PetscObjectComm((PetscObject) dm), PETSC_ERR_ARG_WRONG, "DM must have a default global Section. It will be crated automatically by DMGetDefaultGlobalSection()");
ierr = PetscSectionGetOffset(dm->defaultGlobalSection, point, start);CHKERRQ(ierr);
ierr = PetscSectionGetOffset(dm->defaultSection, point, &loff);CHKERRQ(ierr);
ierr = PetscSectionGetFieldOffset(dm->defaultSection, point, field, &lfoff);CHKERRQ(ierr);
ierr = PetscSectionGetFieldDof(dm->defaultSection, point, field, &fdof);CHKERRQ(ierr);
ierr = PetscSectionGetFieldConstraintDof(dm->defaultSection, point, field, &fcdof);CHKERRQ(ierr);
*start = *start < 0 ? *start - (lfoff-loff) : *start + lfoff-loff;
for (f = 0; f < field; ++f) {
ierr = PetscSectionGetFieldConstraintDof(dm->defaultSection, point, f, &ffcdof);CHKERRQ(ierr);
*start = *start < 0 ? *start + ffcdof : *start - ffcdof;
}
*end = *start < 0 ? *start - (fdof-fcdof) : *start + fdof-fcdof;
}
#else
{
const PetscSection s = dm->defaultSection;
const PetscSection fs = dm->defaultSection->field[field];
const PetscSection gs = dm->defaultGlobalSection;
const PetscInt loff = s->atlasOff[point - s->pStart];
const PetscInt goff = gs->atlasOff[point - s->pStart];
const PetscInt lfoff = fs->atlasOff[point - s->pStart];
const PetscInt fdof = fs->atlasDof[point - s->pStart];
const PetscInt fcdof = fs->bc ? fs->bc->atlasDof[point - fs->bc->pStart] : 0;
PetscInt ffcdof = 0, f;
for (f = 0; f < field; ++f) {
const PetscSection ffs = dm->defaultSection->field[f];
ffcdof += ffs->bc ? ffs->bc->atlasDof[point - ffs->bc->pStart] : 0;
}
*start = goff + (goff < 0 ? loff-lfoff + ffcdof : lfoff-loff - ffcdof);
*end = *start < 0 ? *start - (fdof-fcdof) : *start + fdof-fcdof;
}
#endif
PetscFunctionReturn(0);
}
#endif /* _PLEXIMPL_H */
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