50aa143ab6
ompi_communicator_t, ompi_win_t, ompi_file_t all have a super class of type opal_infosubscriber_t instead of a base/super type of opal_object_t (in previous code comm used c_base, but file used super). It may be a bit bold to say that being a subscriber of MPI_Info is the foundational piece that ties these three things together, but if you object, then I would prefer to turn infosubscriber into a more general name that encompasses other common features rather than create a different super class. The key here is that we want to be able to pass comm, win and file objects as if they were opal_infosubscriber_t, so that one routine can heandle all 3 types of objects being passed to it.
MPI_INFO_NULL is still an ompi_predefined_info_t type since an MPI_Info is part of ompi but the internal details of the underlying information concept is part of opal.
An ompi_info_t type still exists for exposure to the user, but it is simply a wrapper for the opal object.
Routines such as ompi_info_dup, etc have all been moved to opal_info_dup and related to the opal directory.
Fortran to C translation tables are only used for MPI_Info that is exposed to the application and are therefore part of the ompi_info_t and not the opal_info_t
The data structure changes are primarily in the following files:
communicator/communicator.h
ompi/info/info.h
ompi/win/win.h
ompi/file/file.h
The following new files were created:
opal/util/info.h
opal/util/info.c
opal/util/info_subscriber.h
opal/util/info_subscriber.c
This infosubscriber concept is that communicators, files and windows can have subscribers that subscribe to any changes in the info associated with the comm/file/window. When xxx_set_info is called, the new info is presented to each subscriber who can modify the info in any way they want. The new value is presented to the next subscriber and so on until all subscribers have had a chance to modify the value. Therefore, the order of subscribers can make a difference but we hope that there is generally only one subscriber that cares or modifies any given key/value pair. The final info is then stored and returned by a call to xxx_get_info.
The new model can be seen in the following files:
ompi/mpi/c/comm_get_info.c
ompi/mpi/c/comm_set_info.c
ompi/mpi/c/file_get_info.c
ompi/mpi/c/file_set_info.c
ompi/mpi/c/win_get_info.c
ompi/mpi/c/win_set_info.c
The current subscribers where changed as follows:
mca/io/ompio/io_ompio_file_open.c
mca/io/ompio/io_ompio_module.c
mca/osc/rmda/osc_rdma_component.c (This one actually subscribes to "no_locks")
mca/osc/sm/osc_sm_component.c (This one actually subscribes to "blocking_fence" and "alloc_shared_contig")
Signed-off-by: Mark Allen <markalle@us.ibm.com>
Conflicts:
AUTHORS
ompi/communicator/comm.c
ompi/debuggers/ompi_mpihandles_dll.c
ompi/file/file.c
ompi/file/file.h
ompi/info/info.c
ompi/mca/io/ompio/io_ompio.h
ompi/mca/io/ompio/io_ompio_file_open.c
ompi/mca/io/ompio/io_ompio_file_set_view.c
ompi/mca/osc/pt2pt/osc_pt2pt.h
ompi/mca/sharedfp/addproc/sharedfp_addproc.h
ompi/mca/sharedfp/addproc/sharedfp_addproc_file_open.c
ompi/mca/topo/treematch/topo_treematch_dist_graph_create.c
ompi/mpi/c/lookup_name.c
ompi/mpi/c/publish_name.c
ompi/mpi/c/unpublish_name.c
opal/mca/mpool/base/mpool_base_alloc.c
opal/util/Makefile.am
84 строки
2.8 KiB
C
84 строки
2.8 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2010 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) 2004-2007 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) 2007-2012 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2012-2015 Los Alamos National Security, LLC. All rights
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* 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_INFOSUBSCRIBE_H
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#define OMPI_INFOSUBSCRIBE_H
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#include <string.h>
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#include "opal/class/opal_list.h"
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#include "opal/class/opal_pointer_array.h"
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#include "opal/class/opal_hash_table.h"
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#include "opal/threads/mutex.h"
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#include "opal/util/info.h"
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#include "opal/mca/base/mca_base_var_enum.h"
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#define INFO_SUBSCRIBER_SIZE 5
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struct opal_infosubscriber_t {
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opal_object_t s_base;
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opal_hash_table_t s_subscriber_table;
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opal_info_t *s_info;
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};
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typedef struct opal_infosubscriber_t opal_infosubscriber_t;
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OPAL_DECLSPEC OBJ_CLASS_DECLARATION(opal_infosubscriber_t);
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typedef char*(opal_key_interest_callback_t)(opal_infosubscriber_t*, char*, char*);
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/**
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* opal_infosubscribe_change_info - Make changes to a Comm/Win/File Info
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*
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* @param type Comm/Win/File
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* @param object corresponding Com/Win/File object
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* @param old_info previous info setting
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* @param new_info new info setting
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*
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* @retval OPAL status
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*
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* Notifies subscribers of info's that have gone away and new info settings
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*/
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int opal_infosubscribe_change_info(opal_infosubscriber_t*, opal_info_t *);
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/**
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* opal_infosubscribe_subscribe - Request to be updated about info changes to a Comm/Win/File Info
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*
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* @param type Comm/Win/File of obj
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* @param obj either a comm, win or file
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* @param key info key being set
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* @param initial_value default value (or NULL if none)
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* @param callback callback to be called when key changes
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*
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* @retval OPAL status
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*
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* Notifies subscribers of info's that have gone away and new info settings
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* Does not try to optimize settings that are the same between old and new
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* info's.
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*/
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int opal_infosubscribe_subscribe(opal_infosubscriber_t*, char *, char *, opal_key_interest_callback_t);
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#endif /* OMPI_INFO_H */
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