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/* -*- Mode: C; c-basic-offset:4 ; -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2013 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2008-2016 University of Houston. All rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef MCA_IO_OMPIO_AGGREGATORS_H
#define MCA_IO_OMPIO_AGGREGATORS_H
/*AGGREGATOR GROUPING DECISIONS*/
#define OMPIO_MERGE 1
#define OMPIO_SPLIT 2
#define OMPIO_RETAIN 3
typedef struct {
int ndims;
int *dims;
int *periods;
int *coords;
int reorder;
} mca_io_ompio_cart_topo_components;
typedef struct{
OMPI_MPI_OFFSET_TYPE contg_chunk_size;
int *procs_in_contg_group;
int procs_per_contg_group;
} mca_io_ompio_contg;
/*Aggregator selection methods*/
OMPI_DECLSPEC int mca_io_ompio_set_aggregator_props (struct mca_io_ompio_file_t *fh,
int num_aggregators,
size_t bytes_per_proc);
int mca_io_ompio_cart_based_grouping(mca_io_ompio_file_t *ompio_fh, int *num_groups,
mca_io_ompio_contg *contg_groups);
int mca_io_ompio_fview_based_grouping(mca_io_ompio_file_t *fh, int *num_groups,
mca_io_ompio_contg *contg_groups);
int mca_io_ompio_simple_grouping(mca_io_ompio_file_t *fh, int *num_groups,
mca_io_ompio_contg *contg_groups);
int mca_io_ompio_finalize_initial_grouping(mca_io_ompio_file_t *fh, int num_groups,
mca_io_ompio_contg *contg_groups);
int mca_io_ompio_create_groups(mca_io_ompio_file_t *fh, size_t bytes_per_proc);
int mca_io_ompio_prepare_to_group(mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE **start_offsets_lens,
OMPI_MPI_OFFSET_TYPE **end_offsets,
OMPI_MPI_OFFSET_TYPE **aggr_bytes_per_group,
OMPI_MPI_OFFSET_TYPE *bytes_per_group,
int **decision_list,
size_t bytes_per_proc,
int *is_aggregator,
int *ompio_grouping_flag);
int mca_io_ompio_retain_initial_groups(mca_io_ompio_file_t *fh);
int mca_io_ompio_split_initial_groups(mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE *start_offsets_lens,
OMPI_MPI_OFFSET_TYPE *end_offsets,
OMPI_MPI_OFFSET_TYPE bytes_per_group);
int mca_io_ompio_split_a_group(mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE *start_offsets_lens,
OMPI_MPI_OFFSET_TYPE *end_offsets,
int size_new_group,
OMPI_MPI_OFFSET_TYPE *max_cci,
OMPI_MPI_OFFSET_TYPE *min_cci,
int *num_groups, int *size_smallest_group);
int mca_io_ompio_finalize_split(mca_io_ompio_file_t *fh, int size_new_group,
int size_last_group);
int mca_io_ompio_merge_initial_groups(mca_io_ompio_file_t *fh,
OMPI_MPI_OFFSET_TYPE *aggr_bytes_per_group,
int *decision_list, int is_aggregator);
int mca_io_ompio_merge_groups(mca_io_ompio_file_t *fh, int *merge_aggrs,
int num_merge_aggrs);
#endif
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