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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<!-- Generated by javadoc (version 1.7.0) on Sat Apr 18 02:54:48 PKT 2015 -->
<title>Graphcomm</title>
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<h2 title="Class Graphcomm" class="title">Class Graphcomm</h2>
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<li>java.lang.Object</li>
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<li><a href="../mpi/Comm.html" title="class in mpi">mpi.Comm</a></li>
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<pre>public class <span class="strong">Graphcomm</span>
extends <a href="../mpi/Intracomm.html" title="class in mpi">Intracomm</a></pre>
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<h3>Fields inherited from class&nbsp;mpi.<a href="../mpi/Comm.html" title="class in mpi">Comm</a></h3>
<code><a href="../mpi/Comm.html#group">group</a>, <a href="../mpi/Comm.html#mpjdevComm">mpjdevComm</a></code></li>
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<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../mpi/Graphcomm.html#clone()">clone</a></strong>()</code>
<div class="block">Clone the communicator This method will be called only by intracommunicator
 ....</div>
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<td class="colFirst"><code><a href="../mpi/GraphParms.html" title="class in mpi">GraphParms</a></code></td>
<td class="colLast"><code><strong><a href="../mpi/Graphcomm.html#Get()">Get</a></strong>()</code>
<div class="block">Returns graph topology information.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../mpi/Graphcomm.html#Map(int[], int[])">Map</a></strong>(int[]&nbsp;index,
   int[]&nbsp;edges)</code>
<div class="block">Compute an optimal placement.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int[]</code></td>
<td class="colLast"><code><strong><a href="../mpi/Graphcomm.html#Neighbours(int)">Neighbours</a></strong>(int&nbsp;rank)</code>
<div class="block">Provides adjacency information for general graph topology.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../mpi/Graphcomm.html#Topo_test()">Topo_test</a></strong>()</code>
<div class="block">Returns the type of topology associated with the communicator.</div>
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<h3>Methods inherited from class&nbsp;mpi.<a href="../mpi/Intracomm.html" title="class in mpi">Intracomm</a></h3>
<code><a href="../mpi/Intracomm.html#Allgather(java.lang.Object, int, int, mpi.Datatype, java.lang.Object, int, int, mpi.Datatype)">Allgather</a>, <a href="../mpi/Intracomm.html#Allgatherv(java.lang.Object, int, int, mpi.Datatype, java.lang.Object, int, int[], int[], mpi.Datatype)">Allgatherv</a>, <a href="../mpi/Intracomm.html#Allreduce(java.lang.Object, int, java.lang.Object, int, int, mpi.Datatype, mpi.Op)">Allreduce</a>, <a href="../mpi/Intracomm.html#Alltoall(java.lang.Object, int, int, mpi.Datatype, java.lang.Object, int, int, mpi.Datatype)">Alltoall</a>, <a href="../mpi/Intracomm.html#Alltoallv(java.lang.Object, int, int[], int[], mpi.Datatype, java.lang.Object, int, int[], int[], mpi.Datatype)">Alltoallv</a>, <a href="../mpi/Intracomm.html#Barrier()">Barrier</a>, <a href="../mpi/Intracomm.html#Bcast(java.lang.Object, int, int, mpi.Datatype, int)">Bcast</a>, <a href="../mpi/Intracomm.html#Compare(mpi.Comm, mpi.Comm)">Compare</a>, <a href="../mpi/Intracomm.html#Create_cart(int[], boolean[], boolean)">Create_cart</a>, <a href="../mpi/Intracomm.html#Create_graph(int[], int[], boolean)">Create_graph</a>, <a href="../mpi/Intracomm.html#Create(mpi.Group)">Create</a>, <a href="../mpi/Intracomm.html#Gather(java.lang.Object, int, int, mpi.Datatype, java.lang.Object, int, int, mpi.Datatype, int)">Gather</a>, <a href="../mpi/Intracomm.html#Gatherv(java.lang.Object, int, int, mpi.Datatype, java.lang.Object, int, int[], int[], mpi.Datatype, int)">Gatherv</a>, <a href="../mpi/Intracomm.html#Reduce_scatter(java.lang.Object, int, java.lang.Object, int, int[], mpi.Datatype, mpi.Op)">Reduce_scatter</a>, <a href="../mpi/Intracomm.html#Reduce(java.lang.Object, int, java.lang.Object, int, int, mpi.Datatype, mpi.Op, int)">Reduce</a>, <a href="../mpi/Intracomm.html#Scan(java.lang.Object, int, java.lang.Object, int, int, mpi.Datatype, mpi.Op)">Scan</a>, <a href="../mpi/Intracomm.html#Scatter(java.lang.Object, int, int, mpi.Datatype, java.lang.Object, int, int, mpi.Datatype, int)">Scatter</a>, <a href="../mpi/Intracomm.html#Scatterv(java.lang.Object, int, int[], int[], mpi.Datatype, java.lang.Object, int, int, mpi.Datatype, int)">Scatterv</a>, <a href="../mpi/Intracomm.html#Split(int, int)">Split</a></code></li>
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<h3>Methods inherited from class&nbsp;mpi.<a href="../mpi/Comm.html" title="class in mpi">Comm</a></h3>
<code><a href="../mpi/Comm.html#Abort(int)">Abort</a>, <a href="../mpi/Comm.html#Attr_delete(int)">Attr_delete</a>, <a href="../mpi/Comm.html#Attr_get(int)">Attr_get</a>, <a href="../mpi/Comm.html#Bsend_init(java.lang.Object, int, int, mpi.Datatype, int, int)">Bsend_init</a>, <a href="../mpi/Comm.html#Bsend(java.lang.Object, int, int, mpi.Datatype, int, int)">Bsend</a>, <a href="../mpi/Comm.html#bsend(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">bsend</a>, <a href="../mpi/Comm.html#Create_intercomm(mpi.Comm, int, int, int)">Create_intercomm</a>, <a href="../mpi/Comm.html#Free()">Free</a>, <a href="../mpi/Comm.html#Group()">Group</a>, <a href="../mpi/Comm.html#Ibsend(java.lang.Object, int, int, mpi.Datatype, int, int)">Ibsend</a>, <a href="../mpi/Comm.html#ibsend(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">ibsend</a>, <a href="../mpi/Comm.html#Iprobe(int, int)">Iprobe</a>, <a href="../mpi/Comm.html#Irecv(java.lang.Object, int, int, mpi.Datatype, int, int)">Irecv</a>, <a href="../mpi/Comm.html#irecv(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">irecv</a>, <a href="../mpi/Comm.html#Irsend(java.lang.Object, int, int, mpi.Datatype, int, int)">Irsend</a>, <a href="../mpi/Comm.html#irsend(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">irsend</a>, <a href="../mpi/Comm.html#Isend(java.lang.Object, int, int, mpi.Datatype, int, int)">Isend</a>, <a href="../mpi/Comm.html#isend(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">isend</a>, <a href="../mpi/Comm.html#Issend(java.lang.Object, int, int, mpi.Datatype, int, int)">Issend</a>, <a href="../mpi/Comm.html#issend(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">issend</a>, <a href="../mpi/Comm.html#Pack_size(int, mpi.Datatype)">Pack_size</a>, <a href="../mpi/Comm.html#Pack(java.lang.Object, int, int, mpi.Datatype, mpjbuf.Buffer, int)">Pack</a>, <a href="../mpi/Comm.html#Probe(int, int)">Probe</a>, <a href="../mpi/Comm.html#Rank()">Rank</a>, <a href="../mpi/Comm.html#Recv_init(java.lang.Object, int, int, mpi.Datatype, int, int)">Recv_init</a>, <a href="../mpi/Comm.html#Recv(java.lang.Object, int, int, mpi.Datatype, int, int)">Recv</a>, <a href="../mpi/Comm.html#recv(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">recv</a>, <a href="../mpi/Comm.html#Rsend_init(java.lang.Object, int, int, mpi.Datatype, int, int)">Rsend_init</a>, <a href="../mpi/Comm.html#Rsend(java.lang.Object, int, int, mpi.Datatype, int, int)">Rsend</a>, <a href="../mpi/Comm.html#rsend(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">rsend</a>, <a href="../mpi/Comm.html#Send_init(java.lang.Object, int, int, mpi.Datatype, int, int)">Send_init</a>, <a href="../mpi/Comm.html#Send(java.lang.Object, int, int, mpi.Datatype, int, int)">Send</a>, <a href="../mpi/Comm.html#send(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">send</a>, <a href="../mpi/Comm.html#Sendrecv_replace(java.lang.Object, int, int, mpi.Datatype, int, int, int, int)">Sendrecv_replace</a>, <a href="../mpi/Comm.html#sendrecv(java.lang.Object, int, int, mpi.Datatype, int, int, java.lang.Object, int, int, mpi.Datatype, int, int)">sendrecv</a>, <a href="../mpi/Comm.html#Sendrecv(java.lang.Object, int, int, mpi.Datatype, int, int, java.lang.Object, int, int, mpi.Datatype, int, int)">Sendrecv</a>, <a href="../mpi/Comm.html#Size()">Size</a>, <a href="../mpi/Comm.html#Ssend_init(java.lang.Object, int, int, mpi.Datatype, int, int)">Ssend_init</a>, <a href="../mpi/Comm.html#Ssend(java.lang.Object, int, int, mpi.Datatype, int, int)">Ssend</a>, <a href="../mpi/Comm.html#ssend(java.lang.Object, int, int, mpi.Datatype, int, int, boolean)">ssend</a>, <a href="../mpi/Comm.html#Test_inter()">Test_inter</a>, <a href="../mpi/Comm.html#Unpack(mpjbuf.Buffer, int, java.lang.Object, int, int, mpi.Datatype)">Unpack</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>clone</h4>
<pre>public&nbsp;java.lang.Object&nbsp;clone()
                       throws <a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../mpi/Intracomm.html#clone()">Intracomm</a></code></strong></div>
<div class="block">Clone the communicator This method will be called only by intracommunicator
 .... changed the return value to Intracomm ...(instead of Object) ...</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../mpi/Intracomm.html#clone()">clone</a></code>&nbsp;in class&nbsp;<code><a href="../mpi/Intracomm.html" title="class in mpi">Intracomm</a></code></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></code></dd></dl>
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<a name="Get()">
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<h4>Get</h4>
<pre>public&nbsp;<a href="../mpi/GraphParms.html" title="class in mpi">GraphParms</a>&nbsp;Get()
               throws <a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></pre>
<div class="block">Returns graph topology information.
 <p>
 <table>
 <tr><td><em> returns: </em></td><td> object defining node degress and
                                      edges of graph </tr>
 </table>
 <p>
 Java binding of the MPI operation <tt>MPI_GRAPHDIMS_GET</tt>.
 <p>
 The number of nodes and number of edges can be extracted
 from the sizes of the <tt>index</tt> and <tt>edges</tt> fields
 of the returned object.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></code></dd></dl>
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<h4>Neighbours</h4>
<pre>public&nbsp;int[]&nbsp;Neighbours(int&nbsp;rank)
                 throws <a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></pre>
<div class="block">Provides adjacency information for general graph topology.
 <p>
 <table>
 <tr><td><tt> rank     </tt></td><td> rank of a process in the group
                                      of this communicator </tr>
 <tr><td><em> returns: </em></td><td> array of ranks of neighbouring
                                      processes to one specified </tr>
 </table>
 <p>
 Java binding of the MPI operations <tt>MPI_GRAPH_NEIGHBOURS_COUNT</tt>
 and <tt>MPI_GRAPH_NEIGHBOURS</tt>.
 <p>
 The number of neighbours can be extracted from the size of the result.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></code></dd></dl>
</li>
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<a name="Map(int[], int[])">
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<h4>Map</h4>
<pre>public&nbsp;int&nbsp;Map(int[]&nbsp;index,
      int[]&nbsp;edges)
        throws <a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></pre>
<div class="block">Compute an optimal placement.
 <p>
 <table>
 <tr><td><tt> index    </tt></td><td> node degrees </tr>
 <tr><td><tt> edges    </tt></td><td> graph edges </tr>
 <tr><td><em> returns: </em></td><td> reordered rank of calling
                                      process </tr>
 </table>
 <p>
 Java binding of the MPI operation <tt>MPI_GRAPH_MAP</tt>.
 <p>
 The number of nodes is taken to be size of the <tt>index</tt> argument.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></code></dd></dl>
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<a name="Topo_test()">
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<h4>Topo_test</h4>
<pre>public&nbsp;int&nbsp;Topo_test()
              throws <a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../mpi/Comm.html#Topo_test()">Comm</a></code></strong></div>
<div class="block">Returns the type of topology associated with the communicator.
 <p>
 <table>
 <tr>
 <td><em> returns: </em></td>
 <td>topology type of communicator
 </tr>
 </table>
 <p>
 Java binding of the MPI operation <tt>MPI_TOPO_TEST</tt>.
 <p>
 The return value will be one of <tt>MPI.GRAPH</tt>, <tt>MPI.CART</tt> or
 <tt>MPI.UNDEFINED</tt>.</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../mpi/Comm.html#Topo_test()">Topo_test</a></code>&nbsp;in class&nbsp;<code><a href="../mpi/Comm.html" title="class in mpi">Comm</a></code></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../mpi/MPIException.html" title="class in mpi">MPIException</a></code></dd></dl>
</li>
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