You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
119 lines
5.0 KiB
HTML
119 lines
5.0 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
|
|
"http://www.w3.org/TR/html4/loose.dtd">
|
|
<html >
|
|
<head><title>psb_info — Return information about PSBLAS parallel environment</title>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
|
<meta name="generator" content="TeX4ht (http://www.tug.org/tex4ht/)">
|
|
<meta name="originator" content="TeX4ht (http://www.tug.org/tex4ht/)">
|
|
<!-- html,3 -->
|
|
<meta name="src" content="userhtml.tex">
|
|
<link rel="stylesheet" type="text/css" href="userhtml.css">
|
|
</head><body
|
|
>
|
|
<!--l. 65--><div class="crosslinks"><p class="noindent">[<a
|
|
href="userhtmlsu62.html" >next</a>] [<a
|
|
href="userhtmlsu57.html" >prev</a>] [<a
|
|
href="userhtmlsu57.html#tailuserhtmlsu57.html" >prev-tail</a>] [<a
|
|
href="userhtmlsu56.html#tailuserhtmlsu58.html">tail</a>] [<a
|
|
href="userhtmlsu59.html#userhtmlsu61.html" >up</a>] </p></div>
|
|
<h4 class="subsectionHead"><span class="titlemark">7.2 </span> <a
|
|
id="x70-1070007.2"></a>psb_info — Return information about PSBLAS parallel environment</h4>
|
|
|
|
|
|
|
|
<div class="verbatim" id="verbatim-85">
|
|
call psb_info(icontxt, iam, np)
|
|
</div>
|
|
<!--l. 69--><p class="nopar" >
|
|
<!--l. 71--><p class="indent" > This subroutine returns information about the PSBLAS parallel environment,
|
|
defining a virtual parallel machine.
|
|
<dl class="description"><dt class="description">
|
|
<span
|
|
class="cmbx-10">Type:</span> </dt><dd
|
|
class="description">Asynchronous.
|
|
</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></dl>
|
|
<!--l. 84--><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">iam</span> </dt><dd
|
|
class="description">Identifier of current process in the PSBLAS virtual parallel machine.<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">out</span>.<br
|
|
class="newline" />Specified as: an integer value. <span
|
|
class="cmsy-10">-</span>1 <span
|
|
class="cmsy-10">≤ </span><span
|
|
class="cmmi-10">iam </span><span
|
|
class="cmsy-10">≤ </span><span
|
|
class="cmmi-10">np </span><span
|
|
class="cmsy-10">- </span>1 
|
|
</dd><dt class="description">
|
|
<span
|
|
class="cmbx-10">np</span> </dt><dd
|
|
class="description">Number of processes in the PSBLAS 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">out</span>.<br
|
|
class="newline" />Specified as: an integer variable.  </dd></dl>
|
|
<!--l. 99--><p class="noindent" ><span
|
|
class="cmbx-12">Notes</span>
|
|
<ol class="enumerate1" >
|
|
<li
|
|
class="enumerate" id="x70-107002x1">For processes in the virtual parallel machine the identifier will satisfy
|
|
0 <span
|
|
class="cmsy-10">≤ </span><span
|
|
class="cmmi-10">iam </span><span
|
|
class="cmsy-10">≤ </span><span
|
|
class="cmmi-10">np </span><span
|
|
class="cmsy-10">- </span>1;
|
|
</li>
|
|
<li
|
|
class="enumerate" id="x70-107004x2">If the user has requested on <span class="obeylines-h"><span class="verb"><span
|
|
class="cmtt-10">psb_init</span></span></span> a number of processes less than
|
|
the total available in the parallel execution environment, the remaining
|
|
processes will have on return <span
|
|
class="cmmi-10">iam </span>= <span
|
|
class="cmsy-10">-</span>1; the only call involving <span class="obeylines-h"><span class="verb"><span
|
|
class="cmtt-10">icontxt</span></span></span>
|
|
that any such process may execute is to <span class="obeylines-h"><span class="verb"><span
|
|
class="cmtt-10">psb_exit</span></span></span>.</li></ol>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<!--l. 111--><div class="crosslinks"><p class="noindent">[<a
|
|
href="userhtmlsu62.html" >next</a>] [<a
|
|
href="userhtmlsu57.html" >prev</a>] [<a
|
|
href="userhtmlsu57.html#tailuserhtmlsu57.html" >prev-tail</a>] [<a
|
|
href="userhtmlsu58.html" >front</a>] [<a
|
|
href="userhtmlsu59.html#userhtmlsu61.html" >up</a>] </p></div>
|
|
<!--l. 111--><p class="indent" > <a
|
|
id="tailuserhtmlsu58.html"></a>
|
|
</body></html>
|