/usr/lib/petscdir/3.4.2/include/petscthreadcomm.h is in libpetsc3.4.2-dev 3.4.2.dfsg1-8.1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | #if !defined(__PETSCTHREADCOMM_H)
#define __PETSCTHREADCOMM_H
#include <petscsys.h>
/* Function pointer cast for the kernel function */
PETSC_EXTERN_TYPEDEF typedef PetscErrorCode (*PetscThreadKernel)(PetscInt,...);
/*
PetscThreadComm - Abstract object that manages all thread communication models
Level: developer
Concepts: threads
.seealso: PetscThreadCommCreate(), PetscThreadCommDestroy
*/
typedef struct _p_PetscThreadComm *PetscThreadComm;
/*
PetscThreadCommReduction - Context used for managing threaded reductions
Level: developer
*/
typedef struct _p_PetscThreadCommReduction *PetscThreadCommReduction;
typedef const char* PetscThreadCommType;
#define PTHREAD "pthread"
#define NOTHREAD "nothread"
#define OPENMP "openmp"
PETSC_EXTERN PetscFunctionList PetscThreadCommList;
typedef enum {THREADCOMM_SUM,THREADCOMM_PROD,THREADCOMM_MAX,THREADCOMM_MIN,THREADCOMM_MAXLOC,THREADCOMM_MINLOC} PetscThreadCommReductionOp;
PETSC_EXTERN const char* const PetscThreadCommReductionOps[];
/* Max. number of reductions */
#define PETSC_REDUCTIONS_MAX 32
PETSC_EXTERN PetscErrorCode PetscGetNCores(PetscInt*);
PETSC_EXTERN PetscErrorCode PetscCommGetThreadComm(MPI_Comm,PetscThreadComm*);
PETSC_EXTERN PetscErrorCode PetscThreadCommInitializePackage(void);
PETSC_EXTERN PetscErrorCode PetscThreadCommFinalizePackage(void);
PETSC_EXTERN PetscErrorCode PetscThreadCommInitialize(void);
PETSC_EXTERN PetscErrorCode PetscThreadCommGetNThreads(MPI_Comm,PetscInt*);
PETSC_EXTERN PetscErrorCode PetscThreadCommGetAffinities(MPI_Comm,PetscInt[]);
PETSC_EXTERN PetscErrorCode PetscThreadCommView(MPI_Comm,PetscViewer);
PETSC_EXTERN PetscErrorCode PetscThreadCommGetScalars(MPI_Comm,PetscScalar**,PetscScalar**,PetscScalar**);
PETSC_EXTERN PetscErrorCode PetscThreadCommGetInts(MPI_Comm,PetscInt**,PetscInt**,PetscInt**);
PETSC_EXTERN PetscErrorCode PetscThreadCommRunKernel(MPI_Comm,PetscErrorCode (*)(PetscInt,...),PetscInt,...);
PETSC_EXTERN PetscErrorCode PetscThreadCommRunKernel0(MPI_Comm,PetscErrorCode (*)(PetscInt,...));
PETSC_EXTERN PetscErrorCode PetscThreadCommRunKernel1(MPI_Comm,PetscErrorCode (*)(PetscInt,...),void*);
PETSC_EXTERN PetscErrorCode PetscThreadCommRunKernel2(MPI_Comm,PetscErrorCode (*)(PetscInt,...),void*,void*);
PETSC_EXTERN PetscErrorCode PetscThreadCommRunKernel3(MPI_Comm,PetscErrorCode (*)(PetscInt,...),void*,void*,void*);
PETSC_EXTERN PetscErrorCode PetscThreadCommRunKernel4(MPI_Comm,PetscErrorCode (*)(PetscInt,...),void*,void*,void*,void*);
PETSC_EXTERN PetscErrorCode PetscThreadCommRunKernel6(MPI_Comm,PetscErrorCode (*)(PetscInt,...),void*,void*,void*,void*,void*,void*);
PETSC_EXTERN PetscErrorCode PetscThreadCommBarrier(MPI_Comm);
PETSC_EXTERN PetscErrorCode PetscThreadCommGetOwnershipRanges(MPI_Comm,PetscInt,PetscInt*[]);
PETSC_EXTERN PetscErrorCode PetscThreadCommGetRank(PetscThreadComm,PetscInt*);
PETSC_EXTERN PetscErrorCode PetscThreadCommAttach(MPI_Comm,PetscThreadComm);
PETSC_EXTERN PetscErrorCode PetscThreadCommDestroy(PetscThreadComm*);
PETSC_EXTERN PetscErrorCode PetscGetThreadCommWorld(PetscThreadComm*);
/* Reduction operations */
PETSC_EXTERN PetscErrorCode PetscThreadReductionKernelPost(PetscInt,PetscThreadCommReduction,void*);
PETSC_EXTERN PetscErrorCode PetscThreadReductionKernelEnd(PetscInt,PetscThreadCommReduction,void*);
PETSC_EXTERN PetscErrorCode PetscThreadReductionBegin(MPI_Comm,PetscThreadCommReductionOp,PetscDataType,PetscInt,PetscThreadCommReduction*);
PETSC_EXTERN PetscErrorCode PetscThreadReductionEnd(PetscThreadCommReduction,void*);
#endif
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