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Package mpi4py
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<h1 class="epydoc">Source Code for <a href="mpi4py-module.html">Package mpi4py</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno"> 1</tt> <tt class="py-line"><tt class="py-comment"># Author: Lisandro Dalcin</tt> </tt>
<a name="L2"></a><tt class="py-lineno"> 2</tt> <tt class="py-line"><tt class="py-comment"># Contact: dalcinl@gmail.com</tt> </tt>
<a name="L3"></a><tt class="py-lineno"> 3</tt> <tt class="py-line"><tt class="py-docstring">"""</tt> </tt>
<a name="L4"></a><tt class="py-lineno"> 4</tt> <tt class="py-line"><tt class="py-docstring">This is the **MPI for Python** package.</tt> </tt>
<a name="L5"></a><tt class="py-lineno"> 5</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L6"></a><tt class="py-lineno"> 6</tt> <tt class="py-line"><tt class="py-docstring">What is *MPI*?</tt> </tt>
<a name="L7"></a><tt class="py-lineno"> 7</tt> <tt class="py-line"><tt class="py-docstring">==============</tt> </tt>
<a name="L8"></a><tt class="py-lineno"> 8</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L9"></a><tt class="py-lineno"> 9</tt> <tt class="py-line"><tt class="py-docstring">The *Message Passing Interface*, is a standardized and portable</tt> </tt>
<a name="L10"></a><tt class="py-lineno"> 10</tt> <tt class="py-line"><tt class="py-docstring">message-passing system designed to function on a wide variety of</tt> </tt>
<a name="L11"></a><tt class="py-lineno"> 11</tt> <tt class="py-line"><tt class="py-docstring">parallel computers. The standard defines the syntax and semantics of</tt> </tt>
<a name="L12"></a><tt class="py-lineno"> 12</tt> <tt class="py-line"><tt class="py-docstring">library routines and allows users to write portable programs in the</tt> </tt>
<a name="L13"></a><tt class="py-lineno"> 13</tt> <tt class="py-line"><tt class="py-docstring">main scientific programming languages (Fortran, C, or C++). Since</tt> </tt>
<a name="L14"></a><tt class="py-lineno"> 14</tt> <tt class="py-line"><tt class="py-docstring">its release, the MPI specification has become the leading standard</tt> </tt>
<a name="L15"></a><tt class="py-lineno"> 15</tt> <tt class="py-line"><tt class="py-docstring">for message-passing libraries for parallel computers.</tt> </tt>
<a name="L16"></a><tt class="py-lineno"> 16</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L17"></a><tt class="py-lineno"> 17</tt> <tt class="py-line"><tt class="py-docstring">What is *MPI for Python*?</tt> </tt>
<a name="L18"></a><tt class="py-lineno"> 18</tt> <tt class="py-line"><tt class="py-docstring">=========================</tt> </tt>
<a name="L19"></a><tt class="py-lineno"> 19</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L20"></a><tt class="py-lineno"> 20</tt> <tt class="py-line"><tt class="py-docstring">*MPI for Python* provides MPI bindings for the Python programming</tt> </tt>
<a name="L21"></a><tt class="py-lineno"> 21</tt> <tt class="py-line"><tt class="py-docstring">language, allowing any Python program to exploit multiple processors.</tt> </tt>
<a name="L22"></a><tt class="py-lineno"> 22</tt> <tt class="py-line"><tt class="py-docstring">This package is constructed on top of the MPI-1/2 specifications and</tt> </tt>
<a name="L23"></a><tt class="py-lineno"> 23</tt> <tt class="py-line"><tt class="py-docstring">provides an object oriented interface which closely follows MPI-2 C++</tt> </tt>
<a name="L24"></a><tt class="py-lineno"> 24</tt> <tt class="py-line"><tt class="py-docstring">bindings.</tt> </tt>
<a name="L25"></a><tt class="py-lineno"> 25</tt> <tt class="py-line"><tt class="py-docstring">"""</tt> </tt>
<a name="L26"></a><tt class="py-lineno"> 26</tt> <tt class="py-line"> </tt>
<a name="L27"></a><tt class="py-lineno"> 27</tt> <tt class="py-line"><tt class="py-name">__version__</tt> <tt class="py-op">=</tt> <tt class="py-string">'3.0.3'</tt> </tt>
<a name="L28"></a><tt class="py-lineno"> 28</tt> <tt class="py-line"><tt class="py-name">__author__</tt> <tt class="py-op">=</tt> <tt class="py-string">'Lisandro Dalcin'</tt> </tt>
<a name="L29"></a><tt class="py-lineno"> 29</tt> <tt class="py-line"><tt class="py-name">__credits__</tt> <tt class="py-op">=</tt> <tt class="py-string">'MPI Forum, MPICH Team, Open MPI Team'</tt> </tt>
<a name="L30"></a><tt class="py-lineno"> 30</tt> <tt class="py-line"> </tt>
<a name="L31"></a><tt class="py-lineno"> 31</tt> <tt class="py-line"> </tt>
<a name="L32"></a><tt class="py-lineno"> 32</tt> <tt class="py-line"><tt class="py-name">__all__</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-string">'MPI'</tt><tt class="py-op">]</tt> </tt>
<a name="L33"></a><tt class="py-lineno"> 33</tt> <tt class="py-line"> </tt>
<a name="L34"></a><tt class="py-lineno"> 34</tt> <tt class="py-line"> </tt>
<a name="get_include"></a><div id="get_include-def"><a name="L35"></a><tt class="py-lineno"> 35</tt> <a class="py-toggle" href="#" id="get_include-toggle" onclick="return toggle('get_include');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="mpi4py-module.html#get_include">get_include</a><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="get_include-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="get_include-expanded"><a name="L36"></a><tt class="py-lineno"> 36</tt> <tt class="py-line"> <tt class="py-docstring">"""Return the directory in the package that contains header files.</tt> </tt>
<a name="L37"></a><tt class="py-lineno"> 37</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L38"></a><tt class="py-lineno"> 38</tt> <tt class="py-line"><tt class="py-docstring"> Extension modules that need to compile against mpi4py should use</tt> </tt>
<a name="L39"></a><tt class="py-lineno"> 39</tt> <tt class="py-line"><tt class="py-docstring"> this function to locate the appropriate include directory. Using</tt> </tt>
<a name="L40"></a><tt class="py-lineno"> 40</tt> <tt class="py-line"><tt class="py-docstring"> Python distutils (or perhaps NumPy distutils)::</tt> </tt>
<a name="L41"></a><tt class="py-lineno"> 41</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L42"></a><tt class="py-lineno"> 42</tt> <tt class="py-line"><tt class="py-docstring"> import mpi4py</tt> </tt>
<a name="L43"></a><tt class="py-lineno"> 43</tt> <tt class="py-line"><tt class="py-docstring"> Extension('extension_name', ...</tt> </tt>
<a name="L44"></a><tt class="py-lineno"> 44</tt> <tt class="py-line"><tt class="py-docstring"> include_dirs=[..., mpi4py.get_include()])</tt> </tt>
<a name="L45"></a><tt class="py-lineno"> 45</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L46"></a><tt class="py-lineno"> 46</tt> <tt class="py-line"><tt class="py-docstring"> """</tt> </tt>
<a name="L47"></a><tt class="py-lineno"> 47</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt> <tt class="py-keyword">import</tt> <tt class="py-name">join</tt><tt class="py-op">,</tt> <tt class="py-name">dirname</tt> </tt>
<a name="L48"></a><tt class="py-lineno"> 48</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-name">dirname</tt><tt class="py-op">(</tt><tt class="py-name">__file__</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-string">'include'</tt><tt class="py-op">)</tt> </tt>
</div><a name="L49"></a><tt class="py-lineno"> 49</tt> <tt class="py-line"> </tt>
<a name="L50"></a><tt class="py-lineno"> 50</tt> <tt class="py-line"> </tt>
<a name="get_config"></a><div id="get_config-def"><a name="L51"></a><tt class="py-lineno"> 51</tt> <a class="py-toggle" href="#" id="get_config-toggle" onclick="return toggle('get_config');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="mpi4py-module.html#get_config">get_config</a><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="get_config-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="get_config-expanded"><a name="L52"></a><tt class="py-lineno"> 52</tt> <tt class="py-line"> <tt class="py-docstring">"""Return a dictionary with information about MPI."""</tt> </tt>
<a name="L53"></a><tt class="py-lineno"> 53</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt> <tt class="py-keyword">import</tt> <tt class="py-name">join</tt><tt class="py-op">,</tt> <tt class="py-name">dirname</tt> </tt>
<a name="L54"></a><tt class="py-lineno"> 54</tt> <tt class="py-line"> <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L55"></a><tt class="py-lineno"> 55</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt class="py-name">configparser</tt> <tt class="py-keyword">import</tt> <tt class="py-name">ConfigParser</tt> </tt>
<a name="L56"></a><tt class="py-lineno"> 56</tt> <tt class="py-line"> <tt class="py-keyword">except</tt> <tt class="py-name">ImportError</tt><tt class="py-op">:</tt> <tt class="py-comment"># pragma: no cover</tt> </tt>
<a name="L57"></a><tt class="py-lineno"> 57</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt class="py-name">ConfigParser</tt> <tt class="py-keyword">import</tt> <tt class="py-name">ConfigParser</tt> </tt>
<a name="L58"></a><tt class="py-lineno"> 58</tt> <tt class="py-line"> <tt class="py-name">parser</tt> <tt class="py-op">=</tt> <tt class="py-name">ConfigParser</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L59"></a><tt class="py-lineno"> 59</tt> <tt class="py-line"> <tt class="py-name">parser</tt><tt class="py-op">.</tt><tt class="py-name">read</tt><tt class="py-op">(</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-name">dirname</tt><tt class="py-op">(</tt><tt class="py-name">__file__</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-string">'mpi.cfg'</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L60"></a><tt class="py-lineno"> 60</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">dict</tt><tt class="py-op">(</tt><tt class="py-name">parser</tt><tt class="py-op">.</tt><tt id="link-0" class="py-name" targets="Method mpi4py.MPI.Info.items()=mpi4py.MPI.Info-class.html#items"><a title="mpi4py.MPI.Info.items" class="py-name" href="#" onclick="return doclink('link-0', 'items', 'link-0');">items</a></tt><tt class="py-op">(</tt><tt class="py-string">'mpi'</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
</div><a name="L61"></a><tt class="py-lineno"> 61</tt> <tt class="py-line"> </tt>
<a name="L62"></a><tt class="py-lineno"> 62</tt> <tt class="py-line"> </tt>
<a name="rc"></a><div id="rc-def"><a name="L63"></a><tt class="py-lineno"> 63</tt> <a class="py-toggle" href="#" id="rc-toggle" onclick="return toggle('rc');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="mpi4py-module.html#rc">rc</a><tt class="py-op">(</tt><tt class="py-op">**</tt><tt class="py-param">kargs</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> <tt class="py-comment"># pylint: disable=invalid-name</tt> </tt>
</div><a name="L64"></a><tt class="py-lineno"> 64</tt> <tt class="py-line"> <tt class="py-docstring">"""Runtime configuration options.</tt> </tt>
<a name="L65"></a><tt class="py-lineno"> 65</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L66"></a><tt class="py-lineno"> 66</tt> <tt class="py-line"><tt class="py-docstring"> Parameters</tt> </tt>
<a name="L67"></a><tt class="py-lineno"> 67</tt> <tt class="py-line"><tt class="py-docstring"> ----------</tt> </tt>
<a name="L68"></a><tt class="py-lineno"> 68</tt> <tt class="py-line"><tt class="py-docstring"> initialize : bool</tt> </tt>
<a name="L69"></a><tt class="py-lineno"> 69</tt> <tt class="py-line"><tt class="py-docstring"> Automatic MPI initialization at import (default: True).</tt> </tt>
<a name="L70"></a><tt class="py-lineno"> 70</tt> <tt class="py-line"><tt class="py-docstring"> threads : bool</tt> </tt>
<a name="L71"></a><tt class="py-lineno"> 71</tt> <tt class="py-line"><tt class="py-docstring"> Request for thread support (default: True).</tt> </tt>
<a name="L72"></a><tt class="py-lineno"> 72</tt> <tt class="py-line"><tt class="py-docstring"> thread_level : {'multiple', 'serialized', 'funneled', 'single'}</tt> </tt>
<a name="L73"></a><tt class="py-lineno"> 73</tt> <tt class="py-line"><tt class="py-docstring"> Level of thread support to request (default: 'multiple').</tt> </tt>
<a name="L74"></a><tt class="py-lineno"> 74</tt> <tt class="py-line"><tt class="py-docstring"> finalize : None or bool</tt> </tt>
<a name="L75"></a><tt class="py-lineno"> 75</tt> <tt class="py-line"><tt class="py-docstring"> Automatic MPI finalization at exit (default: None).</tt> </tt>
<a name="L76"></a><tt class="py-lineno"> 76</tt> <tt class="py-line"><tt class="py-docstring"> fast_reduce : bool</tt> </tt>
<a name="L77"></a><tt class="py-lineno"> 77</tt> <tt class="py-line"><tt class="py-docstring"> Use tree-based reductions for objects (default: True).</tt> </tt>
<a name="L78"></a><tt class="py-lineno"> 78</tt> <tt class="py-line"><tt class="py-docstring"> recv_mprobe : bool</tt> </tt>
<a name="L79"></a><tt class="py-lineno"> 79</tt> <tt class="py-line"><tt class="py-docstring"> Use matched probes to receive objects (default: True).</tt> </tt>
<a name="L80"></a><tt class="py-lineno"> 80</tt> <tt class="py-line"><tt class="py-docstring"> errors : {'exception', 'default', 'fatal'}</tt> </tt>
<a name="L81"></a><tt class="py-lineno"> 81</tt> <tt class="py-line"><tt class="py-docstring"> Error handling policy (default: 'exception').</tt> </tt>
<a name="L82"></a><tt class="py-lineno"> 82</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L83"></a><tt class="py-lineno"> 83</tt> <tt class="py-line"><tt class="py-docstring"> """</tt> </tt>
<a name="L84"></a><tt class="py-lineno"> 84</tt> <tt class="py-line"> <tt class="py-keyword">for</tt> <tt class="py-name">key</tt> <tt class="py-keyword">in</tt> <tt class="py-name">kargs</tt><tt class="py-op">:</tt> </tt>
<a name="L85"></a><tt class="py-lineno"> 85</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">hasattr</tt><tt class="py-op">(</tt><tt id="link-1" class="py-name" targets="Function mpi4py.rc()=mpi4py-module.html#rc"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-1', 'rc', 'link-1');">rc</a></tt><tt class="py-op">,</tt> <tt class="py-name">key</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L86"></a><tt class="py-lineno"> 86</tt> <tt class="py-line"> <tt class="py-keyword">raise</tt> <tt class="py-name">TypeError</tt><tt class="py-op">(</tt><tt class="py-string">"unexpected argument '{0}'"</tt><tt class="py-op">.</tt><tt class="py-name">format</tt><tt class="py-op">(</tt><tt class="py-name">key</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L87"></a><tt class="py-lineno"> 87</tt> <tt class="py-line"> <tt class="py-keyword">for</tt> <tt class="py-name">key</tt><tt class="py-op">,</tt> <tt class="py-name">value</tt> <tt class="py-keyword">in</tt> <tt class="py-name">kargs</tt><tt class="py-op">.</tt><tt id="link-2" class="py-name"><a title="mpi4py.MPI.Info.items" class="py-name" href="#" onclick="return doclink('link-2', 'items', 'link-0');">items</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L88"></a><tt class="py-lineno"> 88</tt> <tt class="py-line"> <tt class="py-name">setattr</tt><tt class="py-op">(</tt><tt id="link-3" class="py-name"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-3', 'rc', 'link-1');">rc</a></tt><tt class="py-op">,</tt> <tt class="py-name">key</tt><tt class="py-op">,</tt> <tt class="py-name">value</tt><tt class="py-op">)</tt> </tt>
</div><a name="L89"></a><tt class="py-lineno"> 89</tt> <tt class="py-line"> </tt>
<a name="L90"></a><tt class="py-lineno"> 90</tt> <tt class="py-line"><tt id="link-4" class="py-name"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-4', 'rc', 'link-1');">rc</a></tt><tt class="py-op">.</tt><tt class="py-name">initialize</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L91"></a><tt class="py-lineno"> 91</tt> <tt class="py-line"><tt id="link-5" class="py-name"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-5', 'rc', 'link-1');">rc</a></tt><tt class="py-op">.</tt><tt class="py-name">threads</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L92"></a><tt class="py-lineno"> 92</tt> <tt class="py-line"><tt id="link-6" class="py-name"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-6', 'rc', 'link-1');">rc</a></tt><tt class="py-op">.</tt><tt class="py-name">thread_level</tt> <tt class="py-op">=</tt> <tt class="py-string">'multiple'</tt> </tt>
<a name="L93"></a><tt class="py-lineno"> 93</tt> <tt class="py-line"><tt id="link-7" class="py-name"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-7', 'rc', 'link-1');">rc</a></tt><tt class="py-op">.</tt><tt class="py-name">finalize</tt> <tt class="py-op">=</tt> <tt class="py-name">None</tt> </tt>
<a name="L94"></a><tt class="py-lineno"> 94</tt> <tt class="py-line"><tt id="link-8" class="py-name"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-8', 'rc', 'link-1');">rc</a></tt><tt class="py-op">.</tt><tt class="py-name">fast_reduce</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L95"></a><tt class="py-lineno"> 95</tt> <tt class="py-line"><tt id="link-9" class="py-name"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-9', 'rc', 'link-1');">rc</a></tt><tt class="py-op">.</tt><tt class="py-name">recv_mprobe</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L96"></a><tt class="py-lineno"> 96</tt> <tt class="py-line"><tt id="link-10" class="py-name"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-10', 'rc', 'link-1');">rc</a></tt><tt class="py-op">.</tt><tt class="py-name">errors</tt> <tt class="py-op">=</tt> <tt class="py-string">'exception'</tt> </tt>
<a name="L97"></a><tt class="py-lineno"> 97</tt> <tt class="py-line"><tt class="py-name">__import__</tt><tt class="py-op">(</tt><tt class="py-string">'sys'</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">modules</tt><tt class="py-op">[</tt><tt class="py-name">__name__</tt> <tt class="py-op">+</tt> <tt class="py-string">'.rc'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt id="link-11" class="py-name"><a title="mpi4py.rc" class="py-name" href="#" onclick="return doclink('link-11', 'rc', 'link-1');">rc</a></tt> </tt>
<a name="L98"></a><tt class="py-lineno"> 98</tt> <tt class="py-line"> </tt>
<a name="L99"></a><tt class="py-lineno"> 99</tt> <tt class="py-line"> </tt>
<a name="profile"></a><div id="profile-def"><a name="L100"></a><tt class="py-lineno">100</tt> <a class="py-toggle" href="#" id="profile-toggle" onclick="return toggle('profile');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="mpi4py-module.html#profile">profile</a><tt class="py-op">(</tt><tt class="py-param">name</tt><tt class="py-op">,</tt> <tt class="py-op">**</tt><tt class="py-param">kargs</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="profile-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="profile-expanded"><a name="L101"></a><tt class="py-lineno">101</tt> <tt class="py-line"> <tt class="py-docstring">"""Support for the MPI profiling interface.</tt> </tt>
<a name="L102"></a><tt class="py-lineno">102</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L103"></a><tt class="py-lineno">103</tt> <tt class="py-line"><tt class="py-docstring"> Parameters</tt> </tt>
<a name="L104"></a><tt class="py-lineno">104</tt> <tt class="py-line"><tt class="py-docstring"> ----------</tt> </tt>
<a name="L105"></a><tt class="py-lineno">105</tt> <tt class="py-line"><tt class="py-docstring"> name : str</tt> </tt>
<a name="L106"></a><tt class="py-lineno">106</tt> <tt class="py-line"><tt class="py-docstring"> Name of the profiler library to load.</tt> </tt>
<a name="L107"></a><tt class="py-lineno">107</tt> <tt class="py-line"><tt class="py-docstring"> path : list of str, optional</tt> </tt>
<a name="L108"></a><tt class="py-lineno">108</tt> <tt class="py-line"><tt class="py-docstring"> Additional paths to search for the profiler.</tt> </tt>
<a name="L109"></a><tt class="py-lineno">109</tt> <tt class="py-line"><tt class="py-docstring"> logfile : str, optional</tt> </tt>
<a name="L110"></a><tt class="py-lineno">110</tt> <tt class="py-line"><tt class="py-docstring"> Filename prefix for dumping profiler output.</tt> </tt>
<a name="L111"></a><tt class="py-lineno">111</tt> <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L112"></a><tt class="py-lineno">112</tt> <tt class="py-line"><tt class="py-docstring"> """</tt> </tt>
<a name="L113"></a><tt class="py-lineno">113</tt> <tt class="py-line"> <tt class="py-keyword">import</tt> <tt class="py-name">sys</tt> </tt>
<a name="L114"></a><tt class="py-lineno">114</tt> <tt class="py-line"> <tt class="py-keyword">import</tt> <tt class="py-name">os</tt> </tt>
<a name="L115"></a><tt class="py-lineno">115</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt class="py-op">.</tt><tt class="py-name">dl</tt> <tt class="py-keyword">import</tt> <tt class="py-name">dlopen</tt><tt class="py-op">,</tt> <tt class="py-name">dlerror</tt><tt class="py-op">,</tt> <tt class="py-name">RTLD_NOW</tt><tt class="py-op">,</tt> <tt class="py-name">RTLD_GLOBAL</tt> </tt>
<a name="L116"></a><tt class="py-lineno">116</tt> <tt class="py-line"> </tt>
<a name="L117"></a><tt class="py-lineno">117</tt> <tt class="py-line"> <tt class="py-keyword">def</tt> <tt class="py-def-name">lookup_dylib</tt><tt class="py-op">(</tt><tt class="py-param">name</tt><tt class="py-op">,</tt> <tt class="py-param">path</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L118"></a><tt class="py-lineno">118</tt> <tt class="py-line"> <tt class="py-comment"># pylint: disable=missing-docstring</tt> </tt>
<a name="L119"></a><tt class="py-lineno">119</tt> <tt class="py-line"> <tt class="py-name">pattern</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-op">]</tt> </tt>
<a name="L120"></a><tt class="py-lineno">120</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">platform</tt><tt class="py-op">.</tt><tt class="py-name">startswith</tt><tt class="py-op">(</tt><tt class="py-string">'win'</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> <tt class="py-comment"># pragma: no cover</tt> </tt>
<a name="L121"></a><tt class="py-lineno">121</tt> <tt class="py-line"> <tt class="py-name">pattern</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-string">''</tt><tt class="py-op">,</tt> <tt class="py-string">'.dll'</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L122"></a><tt class="py-lineno">122</tt> <tt class="py-line"> <tt class="py-keyword">elif</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">platform</tt> <tt class="py-op">==</tt> <tt class="py-string">'darwin'</tt><tt class="py-op">:</tt> <tt class="py-comment"># pragma: no cover</tt> </tt>
<a name="L123"></a><tt class="py-lineno">123</tt> <tt class="py-line"> <tt class="py-name">pattern</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-string">'lib'</tt><tt class="py-op">,</tt> <tt class="py-string">'.dylib'</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L124"></a><tt class="py-lineno">124</tt> <tt class="py-line"> <tt class="py-keyword">elif</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt id="link-12" class="py-name" targets="Variable mpi4py.MPI.Comm.name=mpi4py.MPI.Comm-class.html#name,Variable mpi4py.MPI.Datatype.name=mpi4py.MPI.Datatype-class.html#name,Variable mpi4py.MPI.Win.name=mpi4py.MPI.Win-class.html#name"><a title="mpi4py.MPI.Comm.name
mpi4py.MPI.Datatype.name
mpi4py.MPI.Win.name" class="py-name" href="#" onclick="return doclink('link-12', 'name', 'link-12');">name</a></tt> <tt class="py-op">==</tt> <tt class="py-string">'posix'</tt><tt class="py-op">:</tt> <tt class="py-comment"># pragma: no cover</tt> </tt>
<a name="L125"></a><tt class="py-lineno">125</tt> <tt class="py-line"> <tt class="py-name">pattern</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-string">'lib'</tt><tt class="py-op">,</tt> <tt class="py-string">'.so'</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L126"></a><tt class="py-lineno">126</tt> <tt class="py-line"> <tt class="py-name">pattern</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-string">''</tt><tt class="py-op">,</tt> <tt class="py-string">''</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L127"></a><tt class="py-lineno">127</tt> <tt class="py-line"> <tt class="py-keyword">for</tt> <tt class="py-name">pth</tt> <tt class="py-keyword">in</tt> <tt class="py-name">path</tt><tt class="py-op">:</tt> </tt>
<a name="L128"></a><tt class="py-lineno">128</tt> <tt class="py-line"> <tt class="py-keyword">for</tt> <tt class="py-op">(</tt><tt class="py-name">lib</tt><tt class="py-op">,</tt> <tt class="py-name">dso</tt><tt class="py-op">)</tt> <tt class="py-keyword">in</tt> <tt class="py-name">pattern</tt><tt class="py-op">:</tt> </tt>
<a name="L129"></a><tt class="py-lineno">129</tt> <tt class="py-line"> <tt class="py-name">filename</tt> <tt class="py-op">=</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-name">pth</tt><tt class="py-op">,</tt> <tt class="py-name">lib</tt> <tt class="py-op">+</tt> <tt id="link-13" class="py-name"><a title="mpi4py.MPI.Comm.name
mpi4py.MPI.Datatype.name
mpi4py.MPI.Win.name" class="py-name" href="#" onclick="return doclink('link-13', 'name', 'link-12');">name</a></tt> <tt class="py-op">+</tt> <tt class="py-name">dso</tt><tt class="py-op">)</tt> </tt>
<a name="L130"></a><tt class="py-lineno">130</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">isfile</tt><tt class="py-op">(</tt><tt class="py-name">filename</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L131"></a><tt class="py-lineno">131</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">abspath</tt><tt class="py-op">(</tt><tt class="py-name">filename</tt><tt class="py-op">)</tt> </tt>
<a name="L132"></a><tt class="py-lineno">132</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">None</tt> </tt>
</div><a name="L133"></a><tt class="py-lineno">133</tt> <tt class="py-line"> </tt>
<a name="L134"></a><tt class="py-lineno">134</tt> <tt class="py-line"> <tt class="py-name">logfile</tt> <tt class="py-op">=</tt> <tt class="py-name">kargs</tt><tt class="py-op">.</tt><tt class="py-name">pop</tt><tt class="py-op">(</tt><tt class="py-string">'logfile'</tt><tt class="py-op">,</tt> <tt class="py-name">None</tt><tt class="py-op">)</tt> </tt>
<a name="L135"></a><tt class="py-lineno">135</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">logfile</tt><tt class="py-op">:</tt> </tt>
<a name="L136"></a><tt class="py-lineno">136</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt id="link-14" class="py-name"><a title="mpi4py.MPI.Comm.name
mpi4py.MPI.Datatype.name
mpi4py.MPI.Win.name" class="py-name" href="#" onclick="return doclink('link-14', 'name', 'link-12');">name</a></tt> <tt class="py-keyword">in</tt> <tt class="py-op">(</tt><tt class="py-string">'mpe'</tt><tt class="py-op">,</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L137"></a><tt class="py-lineno">137</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-string">'MPE_LOGFILE_PREFIX'</tt> <tt class="py-keyword">not</tt> <tt class="py-keyword">in</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">environ</tt><tt class="py-op">:</tt> </tt>
<a name="L138"></a><tt class="py-lineno">138</tt> <tt class="py-line"> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">environ</tt><tt class="py-op">[</tt><tt class="py-string">'MPE_LOGFILE_PREFIX'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">logfile</tt> </tt>
<a name="L139"></a><tt class="py-lineno">139</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt id="link-15" class="py-name"><a title="mpi4py.MPI.Comm.name
mpi4py.MPI.Datatype.name
mpi4py.MPI.Win.name" class="py-name" href="#" onclick="return doclink('link-15', 'name', 'link-12');">name</a></tt> <tt class="py-keyword">in</tt> <tt class="py-op">(</tt><tt class="py-string">'vt'</tt><tt class="py-op">,</tt> <tt class="py-string">'vt-mpi'</tt><tt class="py-op">,</tt> <tt class="py-string">'vt-hyb'</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L140"></a><tt class="py-lineno">140</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-string">'VT_FILE_PREFIX'</tt> <tt class="py-keyword">not</tt> <tt class="py-keyword">in</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">environ</tt><tt class="py-op">:</tt> </tt>
<a name="L141"></a><tt class="py-lineno">141</tt> <tt class="py-line"> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">environ</tt><tt class="py-op">[</tt><tt class="py-string">'VT_FILE_PREFIX'</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">logfile</tt> </tt>
<a name="L142"></a><tt class="py-lineno">142</tt> <tt class="py-line"> </tt>
<a name="L143"></a><tt class="py-lineno">143</tt> <tt class="py-line"> <tt class="py-name">path</tt> <tt class="py-op">=</tt> <tt class="py-name">kargs</tt><tt class="py-op">.</tt><tt class="py-name">pop</tt><tt class="py-op">(</tt><tt class="py-string">'path'</tt><tt class="py-op">,</tt> <tt class="py-op">[</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L144"></a><tt class="py-lineno">144</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">isinstance</tt><tt class="py-op">(</tt><tt class="py-name">path</tt><tt class="py-op">,</tt> <tt class="py-name">str</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L145"></a><tt class="py-lineno">145</tt> <tt class="py-line"> <tt class="py-name">path</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">path</tt><tt class="py-op">]</tt> </tt>
<a name="L146"></a><tt class="py-lineno">146</tt> <tt class="py-line"> <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L147"></a><tt class="py-lineno">147</tt> <tt class="py-line"> <tt class="py-name">path</tt> <tt class="py-op">=</tt> <tt class="py-name">list</tt><tt class="py-op">(</tt><tt class="py-name">path</tt><tt class="py-op">)</tt> </tt>
<a name="L148"></a><tt class="py-lineno">148</tt> <tt class="py-line"> <tt class="py-name">prefix</tt> <tt class="py-op">=</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">dirname</tt><tt class="py-op">(</tt><tt class="py-name">__file__</tt><tt class="py-op">)</tt> </tt>
<a name="L149"></a><tt class="py-lineno">149</tt> <tt class="py-line"> <tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">path</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-name">prefix</tt><tt class="py-op">,</tt> <tt class="py-string">'lib-pmpi'</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L150"></a><tt class="py-lineno">150</tt> <tt class="py-line"> <tt class="py-name">filename</tt> <tt class="py-op">=</tt> <tt class="py-name">lookup_dylib</tt><tt class="py-op">(</tt><tt id="link-16" class="py-name"><a title="mpi4py.MPI.Comm.name
mpi4py.MPI.Datatype.name
mpi4py.MPI.Win.name" class="py-name" href="#" onclick="return doclink('link-16', 'name', 'link-12');">name</a></tt><tt class="py-op">,</tt> <tt class="py-name">path</tt><tt class="py-op">)</tt> </tt>
<a name="L151"></a><tt class="py-lineno">151</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">filename</tt> <tt class="py-keyword">is</tt> <tt class="py-name">None</tt><tt class="py-op">:</tt> </tt>
<a name="L152"></a><tt class="py-lineno">152</tt> <tt class="py-line"> <tt class="py-keyword">raise</tt> <tt class="py-name">ValueError</tt><tt class="py-op">(</tt><tt class="py-string">"profiler '{0}' not found"</tt><tt class="py-op">.</tt><tt class="py-name">format</tt><tt class="py-op">(</tt><tt id="link-17" class="py-name"><a title="mpi4py.MPI.Comm.name
mpi4py.MPI.Datatype.name
mpi4py.MPI.Win.name" class="py-name" href="#" onclick="return doclink('link-17', 'name', 'link-12');">name</a></tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L153"></a><tt class="py-lineno">153</tt> <tt class="py-line"> </tt>
<a name="L154"></a><tt class="py-lineno">154</tt> <tt class="py-line"> <tt class="py-name">handle</tt> <tt class="py-op">=</tt> <tt class="py-name">dlopen</tt><tt class="py-op">(</tt><tt class="py-name">filename</tt><tt class="py-op">,</tt> <tt class="py-name">RTLD_NOW</tt> <tt class="py-op">|</tt> <tt class="py-name">RTLD_GLOBAL</tt><tt class="py-op">)</tt> </tt>
<a name="L155"></a><tt class="py-lineno">155</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">handle</tt><tt class="py-op">:</tt> </tt>
<a name="L156"></a><tt class="py-lineno">156</tt> <tt class="py-line"> <tt id="link-18" class="py-name" targets="Function mpi4py.profile()=mpi4py-module.html#profile"><a title="mpi4py.profile" class="py-name" href="#" onclick="return doclink('link-18', 'profile', 'link-18');">profile</a></tt><tt class="py-op">.</tt><tt class="py-name">registry</tt><tt class="py-op">.</tt><tt class="py-name">append</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt id="link-19" class="py-name"><a title="mpi4py.MPI.Comm.name
mpi4py.MPI.Datatype.name
mpi4py.MPI.Win.name" class="py-name" href="#" onclick="return doclink('link-19', 'name', 'link-12');">name</a></tt><tt class="py-op">,</tt> <tt class="py-op">(</tt><tt class="py-name">handle</tt><tt class="py-op">,</tt> <tt class="py-name">filename</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L157"></a><tt class="py-lineno">157</tt> <tt class="py-line"> <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L158"></a><tt class="py-lineno">158</tt> <tt class="py-line"> <tt class="py-keyword">from</tt> <tt class="py-name">warnings</tt> <tt class="py-keyword">import</tt> <tt class="py-name">warn</tt> </tt>
<a name="L159"></a><tt class="py-lineno">159</tt> <tt class="py-line"> <tt class="py-name">warn</tt><tt class="py-op">(</tt><tt class="py-name">dlerror</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
</div><a name="L160"></a><tt class="py-lineno">160</tt> <tt class="py-line"> </tt>
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<a name="L162"></a><tt class="py-lineno">162</tt> <tt class="py-line"> </tt><script type="text/javascript">
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