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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Chapter 26. Boost.MPI</title>
<link rel="stylesheet" href="../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="index.html" title="The Boost C++ Libraries BoostBook Documentation Subset">
<link rel="up" href="libraries.html" title="Part I. The Boost C++ Libraries (BoostBook Subset)">
<link rel="prev" href="boost/move_if_not_l_idp664973312.html" title="Function template move_if_not_lvalue_reference">
<link rel="next" href="mpi/getting_started.html" title="Getting started">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../boost.png"></td>
<td align="center"><a href="../../index.html">Home</a></td>
<td align="center"><a href="../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="boost/move_if_not_l_idp664973312.html"><img src="../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="libraries.html"><img src="../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="mpi/getting_started.html"><img src="../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="chapter">
<div class="titlepage"><div>
<div><h2 class="title">
<a name="mpi"></a>Chapter 26. Boost.MPI</h2></div>
<div><div class="author"><h3 class="author">
<span class="firstname">Douglas</span> <span class="surname">Gregor</span>
</h3></div></div>
<div><div class="author"><h3 class="author">
<span class="firstname">Matthias</span> <span class="surname">Troyer</span>
</h3></div></div>
<div><p class="copyright">Copyright © 2005-2007 Douglas Gregor,
Matthias Troyer, Trustees of Indiana University</p></div>
<div><div class="legalnotice">
<a name="mpi.legal"></a><p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">
http://www.boost.org/LICENSE_1_0.txt </a>)
</p>
</div></div>
</div></div>
<div class="toc">
<p><b>Table of Contents</b></p>
<dl class="toc">
<dt><span class="section"><a href="mpi.html#mpi.intro">Introduction</a></span></dt>
<dt><span class="section"><a href="mpi/getting_started.html">Getting started</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="mpi/getting_started.html#mpi.mpi_impl">MPI Implementation</a></span></dt>
<dt><span class="section"><a href="mpi/getting_started.html#mpi.config">Configure and Build</a></span></dt>
<dt><span class="section"><a href="mpi/getting_started.html#mpi.using">Using Boost.MPI</a></span></dt>
</dl></dd>
<dt><span class="section"><a href="mpi/tutorial.html">Tutorial</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="mpi/tutorial.html#mpi.point_to_point">Point-to-Point communication</a></span></dt>
<dt><span class="section"><a href="mpi/tutorial.html#mpi.collectives">Collective operations</a></span></dt>
<dt><span class="section"><a href="mpi/tutorial.html#mpi.communicators">Managing communicators</a></span></dt>
<dt><span class="section"><a href="mpi/tutorial.html#mpi.skeleton_and_content">Separating structure from content</a></span></dt>
<dt><span class="section"><a href="mpi/tutorial.html#mpi.performance_optimizations">Performance optimizations</a></span></dt>
<dt><span class="section"><a href="mpi/tutorial.html#mpi.c_mapping">Mapping from C MPI to Boost.MPI</a></span></dt>
</dl></dd>
<dt><span class="section"><a href="mpi/reference.html">Reference</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi_hpp">Header <boost/mpi.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.allocator_hpp">Header <boost/mpi/allocator.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.collectives_hpp">Header <boost/mpi/collectives.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.collectives_fwd_hpp">Header <boost/mpi/collectives_fwd.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.communicator_hpp">Header <boost/mpi/communicator.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.config_hpp">Header <boost/mpi/config.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.datatype_hpp">Header <boost/mpi/datatype.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.datatype_fwd_hpp">Header <boost/mpi/datatype_fwd.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.environment_hpp">Header <boost/mpi/environment.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.exception_hpp">Header <boost/mpi/exception.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.graph_communicator_hpp">Header <boost/mpi/graph_communicator.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.group_hpp">Header <boost/mpi/group.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.inplace_hpp">Header <boost/mpi/inplace.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.intercommunicator_hpp">Header <boost/mpi/intercommunicator.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.nonblocking_hpp">Header <boost/mpi/nonblocking.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.operations_hpp">Header <boost/mpi/operations.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.packed_iarchive_hpp">Header <boost/mpi/packed_iarchive.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.packed_oarchive_hpp">Header <boost/mpi/packed_oarchive.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.python_hpp">Header <boost/mpi/python.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.request_hpp">Header <boost/mpi/request.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.skeleton_and_content_hpp">Header <boost/mpi/skeleton_and_content.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.skeleton_and_content_fwd_hpp">Header <boost/mpi/skeleton_and_content_fwd.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.status_hpp">Header <boost/mpi/status.hpp></a></span></dt>
<dt><span class="section"><a href="mpi/reference.html#header.boost.mpi.timer_hpp">Header <boost/mpi/timer.hpp></a></span></dt>
</dl></dd>
<dt><span class="section"><a href="mpi/python.html">Python Bindings</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="mpi/python.html#mpi.python_quickstart">Quickstart</a></span></dt>
<dt><span class="section"><a href="mpi/python.html#mpi.python_user_data">Transmitting User-Defined Data</a></span></dt>
<dt><span class="section"><a href="mpi/python.html#mpi.python_collectives">Collectives</a></span></dt>
<dt><span class="section"><a href="mpi/python.html#mpi.python_skeleton_content">Skeleton/Content Mechanism</a></span></dt>
<dt><span class="section"><a href="mpi/python.html#mpi.design">Design Philosophy</a></span></dt>
<dt><span class="section"><a href="mpi/python.html#mpi.threading">Threads</a></span></dt>
<dt><span class="section"><a href="mpi/python.html#mpi.performance">Performance Evaluation</a></span></dt>
<dt><span class="section"><a href="mpi/python.html#mpi.history">Revision History</a></span></dt>
<dt><span class="section"><a href="mpi/python.html#mpi.acknowledge">Acknowledgments</a></span></dt>
</dl></dd>
</dl>
</div>
<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="mpi.intro"></a>Introduction</h2></div></div></div>
<p>
Boost.MPI is a library for message passing in high-performance parallel applications.
A Boost.MPI program is one or more processes that can communicate either via
sending and receiving individual messages (point-to-point communication) or
by coordinating as a group (collective communication). Unlike communication
in threaded environments or using a shared-memory library, Boost.MPI processes
can be spread across many different machines, possibly with different operating
systems and underlying architectures.
</p>
<p>
Boost.MPI is not a completely new parallel programming library. Rather, it
is a C++-friendly interface to the standard Message Passing Interface (<a href="http://www-unix.mcs.anl.gov/mpi/" target="_top">MPI</a>), the most popular library
interface for high-performance, distributed computing. MPI defines a library
interface, available from C, Fortran, and C++, for which there are many <a href="http://www-unix.mcs.anl.gov/mpi/implementations.html" target="_top">MPI implementations</a>.
Although there exist C++ bindings for MPI, they offer little functionality
over the C bindings. The Boost.MPI library provides an alternative C++ interface
to MPI that better supports modern C++ development styles, including complete
support for user-defined data types and C++ Standard Library types, arbitrary
function objects for collective algorithms, and the use of modern C++ library
techniques to maintain maximal efficiency.
</p>
<p>
At present, Boost.MPI supports the majority of functionality in MPI 1.1. The
thin abstractions in Boost.MPI allow one to easily combine it with calls to
the underlying C MPI library. Boost.MPI currently supports:
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
Communicators: Boost.MPI supports the creation, destruction, cloning, and
splitting of MPI communicators, along with manipulation of process groups.
</li>
<li class="listitem">
Point-to-point communication: Boost.MPI supports point-to-point communication
of primitive and user-defined data types with send and receive operations,
with blocking and non-blocking interfaces.
</li>
<li class="listitem">
Collective communication: Boost.MPI supports collective operations such
as <code class="computeroutput"><a class="link" href="boost/mpi/reduce.html" title="Function reduce">reduce</a></code>
and <code class="computeroutput"><a class="link" href="boost/mpi/gather_idp667893312.html" title="Function gather">gather</a></code>
with both built-in and user-defined data types and function objects.
</li>
<li class="listitem">
MPI Datatypes: Boost.MPI can build MPI data types for user-defined types
using the <a href="../../libs/serialization/doc" target="_top">Boost.Serialization</a>
library.
</li>
<li class="listitem">
Separating structure from content: Boost.MPI can transfer the shape (or
"skeleton") of complex data structures (lists, maps, etc.) and
then separately transfer their content. This facility optimizes for cases
where the data within a large, static data structure needs to be transmitted
many times.
</li>
</ul></div>
<p>
Boost.MPI can be accessed either through its native C++ bindings, or through
its alternative, <a class="link" href="mpi/python.html" title="Python Bindings">Python interface</a>.
</p>
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"><p><small>Last revised: April 17, 2017 at 02:30:54 GMT</small></p></td>
<td align="right"><div class="copyright-footer"></div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="boost/move_if_not_l_idp664973312.html"><img src="../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="libraries.html"><img src="../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="mpi/getting_started.html"><img src="../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>
|
