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   <h4 class="subsectionHead"><span class="titlemark">7.17   </span> <a 
 id="x85-1220007.17"></a>psb_rcv &#8212; Receive data</h4>
                                                                  

                                                                  
   <div class="verbatim" id="verbatim-100">
call&#x00A0;psb_rcv(icontxt,&#x00A0;dat,&#x00A0;src,&#x00A0;m)
</div>
<!--l. 706--><p class="nopar" >
<!--l. 708--><p class="indent" >   This subroutine receives a packet of data to a destination.
     <dl class="description"><dt class="description">
<span 
class="cmbx-10">Type:</span> </dt><dd 
class="description">Synchronous: see usage notes.
     </dd><dt class="description">
<span 
class="cmbx-10">On Entry</span>  </dt><dd 
class="description">
     </dd><dt class="description">
<span 
class="cmbx-10">icontxt</span> </dt><dd 
class="description">the communication context identifying the virtual parallel machine.<br 
class="newline" />Scope: <span 
class="cmbx-10">global</span>.<br 
class="newline" />Type: <span 
class="cmbx-10">required</span>.<br 
class="newline" />Intent: <span 
class="cmbx-10">in</span>.<br 
class="newline" />Specified as: an integer variable.
     </dd><dt class="description">
<span 
class="cmbx-10">src</span> </dt><dd 
class="description">Source process.<br 
class="newline" />Scope: <span 
class="cmbx-10">global</span>.<br 
class="newline" />Type: <span 
class="cmbx-10">required</span>.<br 
class="newline" />Intent: <span 
class="cmbx-10">in</span>.<br 
class="newline" />Specified as: an integer value 0 <span 
class="cmmi-10">&#x003C;</span>= <span 
class="cmmi-10">src &#x003C;</span>= <span 
class="cmmi-10">np </span><span 
class="cmsy-10">- </span>1. <br 
class="newline" />
     </dd><dt class="description">
<span 
class="cmbx-10">m</span> </dt><dd 
class="description">Number of rows.<br 
class="newline" />Scope: <span 
class="cmbx-10">global</span>.<br 
class="newline" />Type: <span 
class="cmbx-10">Optional</span>.<br 
class="newline" />Intent: <span 
class="cmbx-10">in</span>.<br 
class="newline" />Specified as: an integer value 0 <span 
class="cmmi-10">&#x003C;</span>= <span 
class="cmmi-10">m &#x003C;</span>= <span 
class="cmmi-10">size</span>(<span 
class="cmmi-10">dat,</span>1). <br 
class="newline" />When  <span 
class="cmmi-10">dat </span>is  a  rank  2  array,  specifies  the  number  of  rows  to  be  sent
     independently of the leading dimension <span 
class="cmmi-10">size</span>(<span 
class="cmmi-10">dat,</span>1); must have the same
     value on sending and receiving processes.</dd></dl>
<!--l. 734--><p class="indent" >
     <dl class="description"><dt class="description">
<span 
class="cmbx-10">On Return</span> </dt><dd 
class="description">
     </dd><dt class="description">
<span 
class="cmbx-10">dat</span> </dt><dd 
class="description">The data to be received.<br 
class="newline" />Scope: <span 
class="cmbx-10">local</span>.<br 
class="newline" />Type: <span 
class="cmbx-10">required</span>.<br 
class="newline" />Intent: <span 
class="cmbx-10">inout</span>.<br 
class="newline" />Specified as: an integer, real or complex variable, which may be a scalar,
     or a rank 1 or 2 array, or a character or logical scalar. &#x00A0;Type, kind and
     rank must agree on sender and receiver process; if <span 
class="cmmi-10">m </span>is not specified, size
     must agree as well.</dd></dl>
                                                                  

                                                                  
<!--l. 746--><p class="noindent" ><span 
class="cmbx-12">Notes</span>
     <ol  class="enumerate1" >
     <li 
  class="enumerate" id="x85-122002x1">This subroutine implies a synchronization, but only between the calling
     process and the source process <span 
class="cmmi-10">src</span>.</li></ol>
                                                                  

                                                                  
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