164 строки
6.1 KiB
C
164 строки
6.1 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 (c) 2008-2011 University of Houston. 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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#ifndef OMPI_MCA_FBTL_H
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#define OMPI_MCA_FBTL_H
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#include "ompi_config.h"
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#include "mpi.h"
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#include "opal/mca/mca.h"
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#include "opal/mca/base/base.h"
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#include "ompi/request/request.h"
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#ifdef HAVE_SYS_UIO_H
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#include <sys/uio.h>
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#endif
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BEGIN_C_DECLS
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struct mca_io_ompio_file_t;
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/*
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* Macro for use in components that are of type coll
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*/
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#define MCA_FBTL_BASE_VERSION_2_0_0 \
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MCA_BASE_VERSION_2_0_0, \
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"fbtl", 2, 0, 0
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/*
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* The file byte transfer layer (fbtl) framework provides the abstraction
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* for individual blocking and non-blocking read and write operations.
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* The functionality provided by the interfaces in this module
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* can be used to implement the corresponding operations in MPI I/O.
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* Note however, that the interfaces are not a one-to-one mapping
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* of the MPI individual read and write operations, since the fbtl framework
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* avoids using derived MPI datatypes. The step mapping/unrolling the MPI
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* derived data types into a vector of (offset into file, memory address, length)
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* is done in the OMPIO module of the IO framework.
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*
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* These are the component function prototypes. These function pointers
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* go into the component structure. These functions (query() and finalize()
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* are called during fbtl_base_select(). Each component is query() ied
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* and subsequently, all the unselected components are finalize() 'ed
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* so that any *stuff* they did during query() can be undone. By
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* similar logic, finalize() is also called on the component which
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* was selected when the communicator is being destroyed.
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*
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* So, to sum it up, every component carries 4 functions:
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* 1. open() - called during MPI_INIT
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* 2. close() - called during MPI_FINALIZE
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* 3. query() - called to select a particular component
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* 4. finalize() - called when actions taken during query have
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* to be undone
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*/
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/*
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* **************** component struct *******************************
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* *********** These functions go in the component struct **********
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* **************** component struct *******************************
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*/
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typedef int (*mca_fbtl_base_component_init_query_1_0_0_fn_t)
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(bool enable_progress_threads,
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bool enable_mpi_threads);
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typedef struct mca_fbtl_base_module_1_0_0_t *
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(*mca_fbtl_base_component_file_query_1_0_0_fn_t) (struct mca_io_ompio_file_t *file,
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int *priority);
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typedef int (*mca_fbtl_base_component_file_unquery_1_0_0_fn_t)
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(struct mca_io_ompio_file_t *file);
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/*
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* ****************** component struct ******************************
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* Structure for fbtl v2.0.0 components.This is chained to MCA v2.0.0
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* ****************** component struct ******************************
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*/
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struct mca_fbtl_base_component_2_0_0_t {
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mca_base_component_t fbtlm_version;
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mca_base_component_data_t fbtlm_data;
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mca_fbtl_base_component_init_query_1_0_0_fn_t fbtlm_init_query;
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mca_fbtl_base_component_file_query_1_0_0_fn_t fbtlm_file_query;
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mca_fbtl_base_component_file_unquery_1_0_0_fn_t fbtlm_file_unquery;
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};
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typedef struct mca_fbtl_base_component_2_0_0_t mca_fbtl_base_component_2_0_0_t;
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typedef struct mca_fbtl_base_component_2_0_0_t mca_fbtl_base_component_t;
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/*
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* ***********************************************************************
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* ************************ Interface function definitions **************
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* These are the typedefbtl for the function pointers to various fbtl
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* backend functions which will be used by the various fbtl components
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* ***********************************************************************
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*/
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typedef int (*mca_fbtl_base_module_init_1_0_0_fn_t)
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(struct mca_io_ompio_file_t *file);
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typedef int (*mca_fbtl_base_module_finalize_1_0_0_fn_t)
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(struct mca_io_ompio_file_t *file);
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typedef size_t (*mca_fbtl_base_module_preadv_fn_t)
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(struct mca_io_ompio_file_t *file,
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int *sorted);
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typedef size_t (*mca_fbtl_base_module_pwritev_fn_t)
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(struct mca_io_ompio_file_t *file,
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int *sorted);
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typedef size_t (*mca_fbtl_base_module_ipreadv_fn_t)
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(struct mca_io_ompio_file_t *file,
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int *sorted,
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ompi_request_t **request);
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typedef size_t (*mca_fbtl_base_module_ipwritev_fn_t)
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(struct mca_io_ompio_file_t *file,
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int *sorted,
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ompi_request_t **request);
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/*
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* ***********************************************************************
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* *************************** module structure *************************
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* ***********************************************************************
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*/
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struct mca_fbtl_base_module_1_0_0_t {
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/*
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* Per-file initialization function. This is called only
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* on the module which is selected. The finalize corresponding to
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* this function is present on the component struct above
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*/
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mca_fbtl_base_module_init_1_0_0_fn_t fbtl_module_init;
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mca_fbtl_base_module_finalize_1_0_0_fn_t fbtl_module_finalize;
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/* FBTL function pointers */
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mca_fbtl_base_module_preadv_fn_t fbtl_preadv;
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mca_fbtl_base_module_ipreadv_fn_t fbtl_ipreadv;
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mca_fbtl_base_module_pwritev_fn_t fbtl_pwritev;
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mca_fbtl_base_module_ipwritev_fn_t fbtl_ipwritev;
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/*
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mca_fbtl_base_module_test_fn_t fbtl_test;
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mca_fbtl_base_module_wait_fn_t fbtl_wait;
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mca_fbtl_base_module_progress_fn_t fbtl_progress;
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*/
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};
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typedef struct mca_fbtl_base_module_1_0_0_t mca_fbtl_base_module_1_0_0_t;
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typedef mca_fbtl_base_module_1_0_0_t mca_fbtl_base_module_t;
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END_C_DECLS
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#endif /* OMPI_MCA_FBTL_H */
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