566a050c23
- move files out of toplevel include/ and etc/, moving it into the
sub-projects
- rather than including config headers with <project>/include,
have them as <project>
- require all headers to be included with a project prefix, with
the exception of the config headers ({opal,orte,ompi}_config.h
mpi.h, and mpif.h)
This commit was SVN r8985.
167 строки
4.1 KiB
C
167 строки
4.1 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/**
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* @file:
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*
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* Infrastructure for MPI group support.
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*/
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#ifndef OMPI_GROUP_H
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#define OMPI_GROUP_H
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#include "opal/util/output.h"
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#include "mpi.h"
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#include "ompi/class/ompi_pointer_array.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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/**
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* Group structure
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*/
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struct ompi_group_t {
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opal_object_t super; /**< base class */
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int grp_proc_count; /**< number of processes in group */
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int grp_my_rank; /**< rank in group */
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int grp_f_to_c_index; /**< index in Fortran <-> C translation array */
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uint32_t grp_flags; /**< flags, e.g. freed, cannot be freed etc.*/
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struct ompi_proc_t **grp_proc_pointers;
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/**< list of pointers to ompi_proc_t structures
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for each process in the group */
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};
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typedef struct ompi_group_t ompi_group_t;
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OMPI_DECLSPEC OBJ_CLASS_DECLARATION(ompi_group_t);
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/* Some definitions for the flags */
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#define OMPI_GROUP_ISFREED 0x00000001
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#define OMPI_GROUP_INTRINSIC 0x00000002
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#define OMPI_GROUP_IS_INTRINSIC(_group) ((_group)->grp_flags&OMPI_GROUP_INTRINSIC)
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/**
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* Table for Fortran <-> C group handle conversion
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*/
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OMPI_DECLSPEC extern struct ompi_pointer_array_t *ompi_group_f_to_c_table;
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OMPI_DECLSPEC extern ompi_group_t ompi_mpi_group_null;
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/*
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* function prototypes
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*/
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/**
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* Allocate a new group structure.
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*
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* @param group_size Number of MPI processes in the group
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*
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* @return Pointer to new group structure
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*/
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ompi_group_t *ompi_group_allocate(int group_size);
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/**
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* Increment the reference count of the proc structures.
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*
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* @param group Pointer to ompi_group_t structute (IN)
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*
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*/
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void ompi_group_increment_proc_count(ompi_group_t *group);
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/**
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* Decrement the reference count of the proc structures.
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*
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* @param group Pointer to ompi_group_t structute (IN)
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*
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*/
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void ompi_group_decrement_proc_count(ompi_group_t *group);
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/**
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* Initialize OMPI group infrastructure.
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*
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* @return Error code
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*/
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int ompi_group_init(void);
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/**
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* Clean up OMPI group infrastructure.
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*
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* @return Error code
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*/
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int ompi_group_finalize(void);
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/**
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* Get group size.
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*
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* @param group Pointer to ompi_group_t structute (IN)
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*
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* @return Group size
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*/
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static inline int ompi_group_size(ompi_group_t *group)
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{
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return group->grp_proc_count;
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}
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/**
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* Get group rank
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*
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* @param group Pointer to ompi_group_t structure (IN)
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*
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* @return Group rank
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*/
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static inline int ompi_group_rank(ompi_group_t *group)
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{
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return group->grp_my_rank;
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}
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/**
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* Set group rank in the input group structure
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*
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* @param group Group Pointer to ompi_group_t structure (IN)
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* @param proc_pointer Pointer to ompi_proc_t structure for process.
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* MPI_PROC_NULL may be used to indicate proc not
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* in group
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*
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* @return Error code
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*/
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void ompi_set_group_rank(ompi_group_t *group, struct ompi_proc_t *proc_pointer);
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/**
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* Abstracting MPI_Group_translate_ranks to an ompi function for internal use
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*/
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int ompi_group_translate_ranks ( ompi_group_t *group1,
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int n_ranks, int *ranks1,
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ompi_group_t *group2,
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int *ranks2);
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/**
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* Abstracting MPI_Group_free, since it is required by some internal functions...
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*/
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int ompi_group_free (ompi_group_t **group);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif /* OMPI_GROUP_H */
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