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<h4 class="subsectionHead"><span class="titlemark">7.16 </span> <a
id="x84-1210007.16"></a>psb_snd &#8212; Send data</h4>
<pre class="verbatim" id="verbatim-76">
call&#x00A0;psb_snd(ctxt,&#x00A0;dat,&#x00A0;dst,&#x00A0;m)
</pre>
<!--l. 655--><p class="nopar" >
<!--l. 657--><p class="indent" > This subroutine sends 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">ctxt</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">dat</span> </dt><dd
class="description">The data to be sent.<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">in</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><dt class="description">
<span
class="cmbx-10">dst</span> </dt><dd
class="description">Destination 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">dst &#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. 691--><p class="indent" >
<dl class="description"><dt class="description">
<span
class="cmbx-10">On Return</span> </dt><dd
class="description"></dd></dl>
<!--l. 695--><p class="noindent" ><span
class="cmbx-12">Notes</span>
<ol class="enumerate1" >
<li
class="enumerate" id="x84-121002x1">This subroutine implies a synchronization, but only between the calling
process and the destination process <span
class="cmmi-10">dst</span>.</li></ol>
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