/usr/lib/petscdir/3.7.7/x86_64-linux-gnu-complex/include/petscsf.h is in libpetsc-complex-3.7.7-dev 3.7.7+dfsg1-2build5.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 | /*
A star forest (SF) describes a communication pattern
*/
#if !defined(__PETSCSF_H)
#define __PETSCSF_H
#include <petscsys.h>
#include <petscsftypes.h>
PETSC_EXTERN PetscClassId PETSCSF_CLASSID;
/*J
PetscSFType - String with the name of a PetscSF method or the creation function
with an optional dynamic library name, for example
http://www.mcs.anl.gov/petsc/lib.so:mysfcreate()
Level: beginner
Notes: The two approaches provided are
$ PETSCSFBASIC which uses MPI 1 message passing to perform the communication and
$ PETSCSFWINDOW which uses MPI 2 one-sided operations to perform the communication, this may be more efficient,
$ but may not be available for all MPI distributions. In particular OpenMPI has bugs in its one-sided
$ operations that prevent its use.
.seealso: PetscSFSetType(), PetscSF
J*/
typedef const char *PetscSFType;
#define PETSCSFBASIC "basic"
#define PETSCSFWINDOW "window"
/*E
PetscSFWindowSyncType - Type of synchronization for PETSCSFWINDOW
$ PETSCSF_WINDOW_SYNC_FENCE - simplest model, synchronizing across communicator
$ PETSCSF_WINDOW_SYNC_LOCK - passive model, less synchronous, requires less setup than PETSCSF_WINDOW_SYNC_ACTIVE, but may require more handshakes
$ PETSCSF_WINDOW_SYNC_ACTIVE - active model, provides most information to MPI implementation, needs to construct 2-way process groups (more setup than PETSCSF_WINDOW_SYNC_LOCK)
Level: advanced
.seealso: PetscSFWindowSetSyncType(), PetscSFWindowGetSyncType()
E*/
typedef enum {PETSCSF_WINDOW_SYNC_FENCE,PETSCSF_WINDOW_SYNC_LOCK,PETSCSF_WINDOW_SYNC_ACTIVE} PetscSFWindowSyncType;
PETSC_EXTERN const char *const PetscSFWindowSyncTypes[];
/*E
PetscSFDuplicateOption - Aspects to preserve when duplicating a PetscSF
$ PETSCSF_DUPLICATE_CONFONLY - configuration only, user must call PetscSFSetGraph()
$ PETSCSF_DUPLICATE_RANKS - communication ranks preserved, but different graph (allows simpler setup after calling PetscSFSetGraph())
$ PETSCSF_DUPLICATE_GRAPH - entire graph duplicated
Level: beginner
.seealso: PetscSFDuplicate()
E*/
typedef enum {PETSCSF_DUPLICATE_CONFONLY,PETSCSF_DUPLICATE_RANKS,PETSCSF_DUPLICATE_GRAPH} PetscSFDuplicateOption;
PETSC_EXTERN const char *const PetscSFDuplicateOptions[];
PETSC_EXTERN PetscFunctionList PetscSFList;
PETSC_EXTERN PetscErrorCode PetscSFRegister(const char[],PetscErrorCode (*)(PetscSF));
PETSC_EXTERN PetscErrorCode PetscSFInitializePackage(void);
PETSC_EXTERN PetscErrorCode PetscSFFinalizePackage(void);
PETSC_EXTERN PetscErrorCode PetscSFCreate(MPI_Comm comm,PetscSF*);
PETSC_EXTERN PetscErrorCode PetscSFDestroy(PetscSF*);
PETSC_EXTERN PetscErrorCode PetscSFSetType(PetscSF,PetscSFType);
PETSC_EXTERN PetscErrorCode PetscSFView(PetscSF,PetscViewer);
PETSC_STATIC_INLINE PetscErrorCode PetscSFViewFromOptions(PetscSF A,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)A,obj,name);}
PETSC_EXTERN PetscErrorCode PetscSFSetUp(PetscSF);
PETSC_EXTERN PetscErrorCode PetscSFSetFromOptions(PetscSF);
PETSC_EXTERN PetscErrorCode PetscSFDuplicate(PetscSF,PetscSFDuplicateOption,PetscSF*);
PETSC_EXTERN PetscErrorCode PetscSFWindowSetSyncType(PetscSF,PetscSFWindowSyncType);
PETSC_EXTERN PetscErrorCode PetscSFWindowGetSyncType(PetscSF,PetscSFWindowSyncType*);
PETSC_EXTERN PetscErrorCode PetscSFSetRankOrder(PetscSF,PetscBool);
PETSC_EXTERN PetscErrorCode PetscSFSetGraph(PetscSF,PetscInt,PetscInt,const PetscInt*,PetscCopyMode,const PetscSFNode*,PetscCopyMode);
PETSC_EXTERN PetscErrorCode PetscSFGetGraph(PetscSF,PetscInt *nroots,PetscInt *nleaves,const PetscInt **ilocal,const PetscSFNode **iremote);
PETSC_EXTERN PetscErrorCode PetscSFGetLeafRange(PetscSF,PetscInt*,PetscInt*);
PETSC_EXTERN PetscErrorCode PetscSFCreateEmbeddedSF(PetscSF,PetscInt nroots,const PetscInt *selected,PetscSF *newsf);
PETSC_EXTERN PetscErrorCode PetscSFCreateEmbeddedLeafSF(PetscSF,PetscInt,const PetscInt *, PetscSF *);
PETSC_EXTERN PetscErrorCode PetscSFReset(PetscSF);
PETSC_EXTERN PetscErrorCode PetscSFGetRanks(PetscSF,PetscInt*,const PetscMPIInt**,const PetscInt**,const PetscInt**,const PetscInt**);
PETSC_EXTERN PetscErrorCode PetscSFGetGroups(PetscSF,MPI_Group*,MPI_Group*);
PETSC_EXTERN PetscErrorCode PetscSFGetMultiSF(PetscSF,PetscSF*);
PETSC_EXTERN PetscErrorCode PetscSFCreateInverseSF(PetscSF,PetscSF*);
/* broadcasts rootdata to leafdata */
PETSC_EXTERN PetscErrorCode PetscSFBcastBegin(PetscSF,MPI_Datatype,const void *rootdata,void *leafdata)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2);
PETSC_EXTERN PetscErrorCode PetscSFBcastEnd(PetscSF,MPI_Datatype,const void *rootdata,void *leafdata)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2);
/* Reduce leafdata into rootdata using provided operation */
PETSC_EXTERN PetscErrorCode PetscSFReduceBegin(PetscSF,MPI_Datatype,const void *leafdata,void *rootdata,MPI_Op)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2);
PETSC_EXTERN PetscErrorCode PetscSFReduceEnd(PetscSF,MPI_Datatype,const void *leafdata,void *rootdata,MPI_Op)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2);
/* Atomically modifies (using provided operation) rootdata using leafdata from each leaf, value at root at time of modification is returned in leafupdate. */
PETSC_EXTERN PetscErrorCode PetscSFFetchAndOpBegin(PetscSF,MPI_Datatype,void *rootdata,const void *leafdata,void *leafupdate,MPI_Op)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2) PetscAttrMPIPointerWithType(5,2);
PETSC_EXTERN PetscErrorCode PetscSFFetchAndOpEnd(PetscSF,MPI_Datatype,void *rootdata,const void *leafdata,void *leafupdate,MPI_Op)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2) PetscAttrMPIPointerWithType(5,2);
/* Compute the degree of every root vertex (number of leaves in its star) */
PETSC_EXTERN PetscErrorCode PetscSFComputeDegreeBegin(PetscSF,const PetscInt **degree);
PETSC_EXTERN PetscErrorCode PetscSFComputeDegreeEnd(PetscSF,const PetscInt **degree);
/* Concatenate data from all leaves into roots */
PETSC_EXTERN PetscErrorCode PetscSFGatherBegin(PetscSF,MPI_Datatype,const void *leafdata,void *multirootdata)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2);
PETSC_EXTERN PetscErrorCode PetscSFGatherEnd(PetscSF,MPI_Datatype,const void *leafdata,void *multirootdata)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2);
/* Distribute distinct values to each leaf from roots */
PETSC_EXTERN PetscErrorCode PetscSFScatterBegin(PetscSF,MPI_Datatype,const void *multirootdata,void *leafdata)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2);
PETSC_EXTERN PetscErrorCode PetscSFScatterEnd(PetscSF,MPI_Datatype,const void *multirootdata,void *leafdata)
PetscAttrMPIPointerWithType(3,2) PetscAttrMPIPointerWithType(4,2);
PETSC_EXTERN PetscErrorCode PetscSFCompose(PetscSF,PetscSF,PetscSF*);
#if defined(MPI_REPLACE)
# define MPIU_REPLACE MPI_REPLACE
#else
/* When using an old MPI such that MPI_REPLACE is not defined, we do not pass MPI_REPLACE to MPI at all. Instead, we
* use it as a flag for our own reducer in the PETSCSFBASIC implementation. This could be any unique value unlikely to
* collide with another MPI_Op so we'll just use the value that has been used by every version of MPICH since
* MPICH2-1.0.6. */
# define MPIU_REPLACE (MPI_Op)(0x5800000d)
#endif
#endif
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