2009-12-08 04:49:23 +00:00
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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2010-02-11 20:42:56 +00:00
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<meta name="generator" content="AsciiDoc 8.4.5" />
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2009-12-08 04:52:22 +00:00
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<title>cset-set(1)</title>
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2009-12-08 04:49:23 +00:00
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<style type="text/css">
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/* Debug borders */
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p, li, dt, dd, div, pre, h1, h2, h3, h4, h5, h6 {
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/*
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border: 1px solid red;
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*/
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}
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body {
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margin: 1em 5% 1em 5%;
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}
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a {
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color: blue;
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text-decoration: underline;
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}
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a:visited {
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color: fuchsia;
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}
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em {
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font-style: italic;
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2009-12-08 04:52:22 +00:00
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color: navy;
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2009-12-08 04:49:23 +00:00
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}
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strong {
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font-weight: bold;
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2009-12-08 04:52:22 +00:00
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color: #083194;
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2009-12-08 04:49:23 +00:00
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}
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tt {
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color: navy;
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}
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h1, h2, h3, h4, h5, h6 {
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color: #527bbd;
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font-family: sans-serif;
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margin-top: 1.2em;
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margin-bottom: 0.5em;
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line-height: 1.3;
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}
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2009-12-08 04:52:22 +00:00
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h1, h2, h3 {
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2009-12-08 04:49:23 +00:00
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border-bottom: 2px solid silver;
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}
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h2 {
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padding-top: 0.5em;
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}
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2009-12-08 04:52:22 +00:00
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h3 {
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float: left;
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}
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h3 + * {
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clear: left;
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}
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2009-12-08 04:49:23 +00:00
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div.sectionbody {
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font-family: serif;
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margin-left: 0;
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}
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hr {
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border: 1px solid silver;
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}
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p {
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margin-top: 0.5em;
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margin-bottom: 0.5em;
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}
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2009-12-08 04:52:22 +00:00
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ul, ol, li > p {
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margin-top: 0;
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}
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2009-12-08 04:49:23 +00:00
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pre {
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padding: 0;
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margin: 0;
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}
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span#author {
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color: #527bbd;
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font-family: sans-serif;
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font-weight: bold;
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font-size: 1.1em;
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}
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span#email {
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}
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2010-02-11 20:42:56 +00:00
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span#revnumber, span#revdate, span#revremark {
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2009-12-08 04:49:23 +00:00
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font-family: sans-serif;
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}
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div#footer {
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font-family: sans-serif;
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font-size: small;
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border-top: 2px solid silver;
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padding-top: 0.5em;
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margin-top: 4.0em;
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}
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div#footer-text {
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float: left;
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padding-bottom: 0.5em;
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}
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div#footer-badges {
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float: right;
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padding-bottom: 0.5em;
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}
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2010-02-11 20:42:56 +00:00
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div#preamble {
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margin-top: 1.5em;
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margin-bottom: 1.5em;
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}
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2009-12-08 04:49:23 +00:00
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div.tableblock, div.imageblock, div.exampleblock, div.verseblock,
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div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
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div.admonitionblock {
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margin-top: 1.5em;
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margin-bottom: 1.5em;
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}
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div.admonitionblock {
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margin-top: 2.5em;
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margin-bottom: 2.5em;
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}
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div.content { /* Block element content. */
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padding: 0;
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}
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/* Block element titles. */
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div.title, caption.title {
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2009-12-08 04:52:22 +00:00
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color: #527bbd;
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2009-12-08 04:49:23 +00:00
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font-family: sans-serif;
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font-weight: bold;
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text-align: left;
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margin-top: 1.0em;
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margin-bottom: 0.5em;
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}
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div.title + * {
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margin-top: 0;
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}
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td div.title:first-child {
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margin-top: 0.0em;
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}
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div.content div.title:first-child {
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margin-top: 0.0em;
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}
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div.content + div.title {
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margin-top: 0.0em;
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}
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div.sidebarblock > div.content {
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background: #ffffee;
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border: 1px solid silver;
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padding: 0.5em;
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}
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div.listingblock > div.content {
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border: 1px solid silver;
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background: #f4f4f4;
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padding: 0.5em;
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}
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2009-12-08 04:52:22 +00:00
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div.quoteblock {
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2009-12-08 04:49:23 +00:00
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padding-left: 2.0em;
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2010-02-11 20:42:56 +00:00
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margin-right: 10%;
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2009-12-08 04:49:23 +00:00
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}
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2009-12-08 04:52:22 +00:00
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div.quoteblock > div.attribution {
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padding-top: 0.5em;
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2009-12-08 04:49:23 +00:00
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text-align: right;
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}
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2009-12-08 04:52:22 +00:00
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div.verseblock {
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padding-left: 2.0em;
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2010-02-11 20:42:56 +00:00
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margin-right: 10%;
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2009-12-08 04:52:22 +00:00
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}
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div.verseblock > div.content {
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white-space: pre;
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}
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div.verseblock > div.attribution {
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padding-top: 0.75em;
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text-align: left;
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}
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/* DEPRECATED: Pre version 8.2.7 verse style literal block. */
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2009-12-08 04:49:23 +00:00
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div.verseblock + div.attribution {
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text-align: left;
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}
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div.admonitionblock .icon {
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vertical-align: top;
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font-size: 1.1em;
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font-weight: bold;
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text-decoration: underline;
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color: #527bbd;
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padding-right: 0.5em;
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}
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div.admonitionblock td.content {
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padding-left: 0.5em;
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border-left: 2px solid silver;
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}
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div.exampleblock > div.content {
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border-left: 2px solid silver;
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padding: 0.5em;
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}
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div.imageblock div.content { padding-left: 0; }
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span.image img { border-style: none; }
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2010-02-11 20:42:56 +00:00
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a.image:visited { color: white; }
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2009-12-08 04:49:23 +00:00
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dl {
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margin-top: 0.8em;
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margin-bottom: 0.8em;
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}
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dt {
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margin-top: 0.5em;
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margin-bottom: 0;
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2009-12-08 04:52:22 +00:00
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font-style: normal;
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color: navy;
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2009-12-08 04:49:23 +00:00
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}
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dd > *:first-child {
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2009-12-08 04:52:22 +00:00
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margin-top: 0.1em;
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2009-12-08 04:49:23 +00:00
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}
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ul, ol {
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list-style-position: outside;
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}
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2009-12-08 04:52:22 +00:00
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ol.arabic {
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list-style-type: decimal;
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}
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ol.loweralpha {
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2009-12-08 04:49:23 +00:00
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list-style-type: lower-alpha;
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}
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2009-12-08 04:52:22 +00:00
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ol.upperalpha {
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list-style-type: upper-alpha;
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}
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ol.lowerroman {
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list-style-type: lower-roman;
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}
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ol.upperroman {
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list-style-type: upper-roman;
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}
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div.compact ul, div.compact ol,
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div.compact p, div.compact p,
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div.compact div, div.compact div {
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margin-top: 0.1em;
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margin-bottom: 0.1em;
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}
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2009-12-08 04:49:23 +00:00
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div.tableblock > table {
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border: 3px solid #527bbd;
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}
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thead {
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font-family: sans-serif;
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font-weight: bold;
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}
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tfoot {
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font-weight: bold;
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}
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2009-12-08 04:52:22 +00:00
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td > div.verse {
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white-space: pre;
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}
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p.table {
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margin-top: 0;
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}
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/* Because the table frame attribute is overriden by CSS in most browsers. */
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div.tableblock > table[frame="void"] {
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border-style: none;
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}
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div.tableblock > table[frame="hsides"] {
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border-left-style: none;
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border-right-style: none;
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}
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div.tableblock > table[frame="vsides"] {
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border-top-style: none;
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border-bottom-style: none;
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}
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2009-12-08 04:49:23 +00:00
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2009-12-08 04:52:22 +00:00
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div.hdlist {
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2009-12-08 04:49:23 +00:00
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margin-top: 0.8em;
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margin-bottom: 0.8em;
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}
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2009-12-08 04:52:22 +00:00
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div.hdlist tr {
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padding-bottom: 15px;
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}
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dt.hdlist1.strong, td.hdlist1.strong {
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font-weight: bold;
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}
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td.hdlist1 {
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2009-12-08 04:49:23 +00:00
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vertical-align: top;
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2009-12-08 04:52:22 +00:00
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font-style: normal;
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2009-12-08 04:49:23 +00:00
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padding-right: 0.8em;
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2009-12-08 04:52:22 +00:00
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color: navy;
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2009-12-08 04:49:23 +00:00
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}
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2009-12-08 04:52:22 +00:00
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td.hdlist2 {
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2009-12-08 04:49:23 +00:00
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vertical-align: top;
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}
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2009-12-08 04:52:22 +00:00
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div.hdlist.compact tr {
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margin: 0;
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padding-bottom: 0;
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}
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2009-12-08 04:49:23 +00:00
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2010-02-11 20:42:56 +00:00
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.comment {
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background: yellow;
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}
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2009-12-08 04:49:23 +00:00
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@media print {
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div#footer-badges { display: none; }
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}
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div#toctitle {
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color: #527bbd;
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font-family: sans-serif;
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font-size: 1.1em;
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font-weight: bold;
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margin-top: 1.0em;
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margin-bottom: 0.1em;
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}
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2009-12-08 04:52:22 +00:00
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div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {
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2009-12-08 04:49:23 +00:00
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margin-top: 0;
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margin-bottom: 0;
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}
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div.toclevel2 {
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margin-left: 2em;
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2009-12-08 04:52:22 +00:00
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font-size: 0.9em;
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</style>
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</head>
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<body>
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<div id="header">
|
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<h1>
|
|
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|
|
cset-set(1) Manual Page
|
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|
|
</h1>
|
|
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|
|
<h2>NAME</h2>
|
|
|
|
|
<div class="sectionbody">
|
|
|
|
|
<p>cset-set -
|
|
|
|
|
manage sets of cpus
|
|
|
|
|
</p>
|
|
|
|
|
</div>
|
|
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|
|
</div>
|
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|
|
|
<h2 id="_synopsis">SYNOPSIS</h2>
|
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|
|
|
<div class="sectionbody">
|
|
|
|
|
<div class="verseblock">
|
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|
|
|
<div class="verseblock-content"><em>cset</em> [cset options] <em>set</em> [set options] [args]
|
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|
|
|
<em>cset</em> set --help
|
|
|
|
|
<em>cset</em> set
|
|
|
|
|
<em>cset</em> set --recurse
|
|
|
|
|
<em>cset</em> set --list myset
|
|
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|
|
<em>cset</em> set myset
|
|
|
|
|
<em>cset</em> set --recurse --list myset
|
|
|
|
|
<em>cset</em> set --cpu 2-5 --mem 0 --set newset
|
|
|
|
|
<em>cset</em> set --cpu 2-5 newset
|
|
|
|
|
<em>cset</em> set --cpu 1,2,5-7 another_set
|
|
|
|
|
<em>cset</em> set --destroy newset
|
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|
|
|
<em>cset</em> set --destroy /mygroup_sets/my_set</div>
|
|
|
|
|
<div class="verseblock-attribution">
|
|
|
|
|
</div></div>
|
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|
|
|
</div>
|
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|
|
|
<h2 id="_options">OPTIONS</h2>
|
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|
|
|
<div class="sectionbody">
|
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|
|
|
<div class="dlist"><dl>
|
|
|
|
|
<dt class="hdlist1">
|
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|
|
|
-h, --help
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
prints the list of options for this command
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
<dt class="hdlist1">
|
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|
|
|
-l, --list
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
list the named cpuset(s); if -a is used, will list members of named
|
|
|
|
|
cpuset; if -r is used, will list recursively
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
<dt class="hdlist1">
|
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|
|
|
-c CPUSPEC, --cpu=CPUSPEC
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
create or modify cpuset in the specified cpuset with CPUSPEC
|
|
|
|
|
specification
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
<dt class="hdlist1">
|
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|
|
|
-m MEMSPEC, --mem=MEMSPEC
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
specify which memory nodes to assign to the created or modified
|
|
|
|
|
cpuset
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
<dt class="hdlist1">
|
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|
|
|
-d, --destroy
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
destroy specified cpuset
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
<dt class="hdlist1">
|
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|
|
|
-s CPUSET, --set=CPUSET
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
specify cpuset name to be acted on
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
<dt class="hdlist1">
|
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|
|
|
-r, --recurse
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
do recursive listing, for use with --list
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
<dt class="hdlist1">
|
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|
|
|
-v, --verbose
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
prints more detailed output, for the set command, using this flag
|
|
|
|
|
will not chop listing to fit in 80 columns
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
<dt class="hdlist1">
|
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|
|
|
--cpu_exclusive
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
mark this cpuset as owning its CPUs exclusively
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
<dt class="hdlist1">
|
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|
|
|
--mem_exclusive
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
mark this cpuset as owning its MEMs exclusively
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
</dl></div>
|
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|
|
|
</div>
|
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|
|
|
<h2 id="_description">DESCRIPTION</h2>
|
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|
|
|
<div class="sectionbody">
|
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|
|
|
<div class="paragraph"><p>This command is used to create, modify, and destroy cpusets.
|
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|
|
|
Cpusets form a tree-like structure rooted at the root cpuset
|
|
|
|
|
which always includes all system CPUs and all system memory
|
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|
|
|
nodes.</p></div>
|
|
|
|
|
<div class="paragraph"><p>A cpuset is an organizational unit that defines a group of CPUs
|
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|
|
|
and a group of memory nodes where a process or thread (i.e. task)
|
|
|
|
|
is allowed to run on. For non-NUMA machines, the memory node is
|
|
|
|
|
always 0 (zero) and cannot be set to anything else. For NUMA
|
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|
|
|
machines, the memory node can be set to a similar specification
|
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|
|
|
as the CPU definition and will tie those memory nodes to that
|
|
|
|
|
cpuset. You will usually want the memory nodes that belong to
|
2009-12-08 04:52:22 +00:00
|
|
|
the CPUs defined to be in the same cpuset.</p></div>
|
|
|
|
|
<div class="paragraph"><p>A cpuset can have exclusive right to the CPUs defined in it.
|
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|
|
|
This means that only this cpuset can own these CPUs. Similarly,
|
|
|
|
|
a cpuset can have exclusive right to the memory nodes defined in
|
|
|
|
|
it. This means that only this cpuset can own these memory
|
2009-12-08 04:52:22 +00:00
|
|
|
nodes.</p></div>
|
|
|
|
|
<div class="paragraph"><p>Cpusets can be specified by name or by path; however, care
|
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|
|
|
should be taken when specifying by name if the name is not
|
|
|
|
|
unique. This tool will generally not let you do destructive
|
2009-12-08 04:52:22 +00:00
|
|
|
things to non-unique cpuset names.</p></div>
|
|
|
|
|
<div class="paragraph"><p>Cpusets are uniquely specified by path. The path starts at where
|
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|
|
|
the cpusets filesystem is mounted so you generally do not have to
|
|
|
|
|
know where that is. For example, so specify a cpuset that is
|
|
|
|
|
called "two" which is a subset of "one" which in turn is a subset
|
|
|
|
|
of the root cpuset, use the path "/one/two" regardless of where
|
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|
|
|
the cpusets filesystem is mounted.</p></div>
|
|
|
|
|
<div class="paragraph"><p>When specifying CPUs, a so-called CPUSPEC is used. The CPUSPEC
|
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|
|
|
will accept a comma-separated list of CPUs and inclusive range
|
|
|
|
|
specifications. For example, --cpu=1,3,5-7 will assign CPU1,
|
2009-12-08 04:52:22 +00:00
|
|
|
CPU3, CPU5, CPU6, and CPU7 to the specified cpuset.</p></div>
|
|
|
|
|
<div class="paragraph"><p>Note that cpusets follow certain rules. For example, children
|
2009-12-08 04:49:23 +00:00
|
|
|
can only include CPUs that the parents already have. If you do
|
|
|
|
|
not follow those rules, the kernel cpuset subsystem will not let
|
|
|
|
|
you create that cpuset. For example, if you create a cpuset that
|
|
|
|
|
contains CPU3, and then attempt to create a child of that cpuset
|
|
|
|
|
with a CPU other than 3, you will get an error, and the cpuset
|
|
|
|
|
will not be active. The error is somewhat cryptic in that it is
|
2009-12-08 04:52:22 +00:00
|
|
|
usually a "Permission denied" error.</p></div>
|
|
|
|
|
<div class="paragraph"><p>Memory nodes are specified with a MEMSPEC in a similar way to
|
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|
|
|
the CPUSPEC. For example, --mem=1,3-6 will assign MEM1, MEM3,
|
2009-12-08 04:52:22 +00:00
|
|
|
MEM4, MEM5, and MEM6 to the specified cpuset.</p></div>
|
|
|
|
|
<div class="paragraph"><p>Note that if you attempt to create or modify a cpuset with a
|
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|
|
|
memory node specification that is not valid, you may get a
|
|
|
|
|
cryptic error message, "No space left on device", and the
|
2009-12-08 04:52:22 +00:00
|
|
|
modification will not be allowed.</p></div>
|
|
|
|
|
<div class="paragraph"><p>When you destroy a cpuset, then the tasks running in that set are
|
2009-12-08 04:49:23 +00:00
|
|
|
moved to the parent of that cpuset. If this is not what you
|
|
|
|
|
want, then manually move those tasks to the cpuset of your choice
|
|
|
|
|
with the <em>cset proc</em> command (see <em>cset proc --help</em> for more
|
2009-12-08 04:52:22 +00:00
|
|
|
information).</p></div>
|
|
|
|
|
<h3 id="_examples">EXAMPLES</h3><div style="clear:left"></div>
|
|
|
|
|
<div class="dlist"><dl>
|
|
|
|
|
<dt class="hdlist1">
|
2009-12-08 04:49:23 +00:00
|
|
|
Create a cpuset with the default memory specification
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
<strong><tt># cset set --cpu=2,4,6-8 --set=new_set</tt></strong>
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
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|
|
|
</dl></div>
|
|
|
|
|
<div class="paragraph"><p>This command creates a cpuset called "new_set" located
|
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|
|
|
off the root cpuset which holds CPUS 2,4,6,7,8 and node 0
|
|
|
|
|
(interleaved) memory. Note that --set is optional, and
|
|
|
|
|
you can just specify the name for the new cpuset after
|
2009-12-08 04:52:22 +00:00
|
|
|
all arguments.</p></div>
|
|
|
|
|
<div class="dlist"><dl>
|
|
|
|
|
<dt class="hdlist1">
|
2009-12-08 04:49:23 +00:00
|
|
|
Create a cpuset that specifies both CPUs and memory nodes
|
|
|
|
|
</dt>
|
|
|
|
|
<dd>
|
|
|
|
|
<p>
|
|
|
|
|
<strong><tt># cset set --cpu=3 --mem=3 /rad/set_one</tt></strong>
|
|
|
|
|
</p>
|
|
|
|
|
</dd>
|
2009-12-08 04:52:22 +00:00
|
|
|
</dl></div>
|
|
|
|
|
<div class="paragraph"><p>Note that this command uses the full path method to
|
2009-12-08 04:49:23 +00:00
|
|
|
specify the name of the new cpuset "/rad/set_one". It
|
2009-12-08 04:52:22 +00:00
|
|
|
also names the new cpuset implicitly (i.e. no --set
|
2009-12-08 04:49:23 +00:00
|
|
|
option, although you can use that if you want to). If
|
|
|
|
|
the "set_one" name is unique, you can subsequently refer
|
|
|
|
|
to is just by that. Memory node 3 is assigned to this
|
2009-12-08 04:52:22 +00:00
|
|
|
cpuset as well as CPU 3.</p></div>
|
|
|
|
|
<div class="paragraph"><p>The above commands will create the new cpusets, or if they
|
|
|
|
|
already exist, they will modify them to the new specifications.</p></div>
|
2009-12-08 04:49:23 +00:00
|
|
|
</div>
|
2009-12-08 04:52:22 +00:00
|
|
|
<h2 id="_license">LICENSE</h2>
|
2009-12-08 04:49:23 +00:00
|
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<div class="sectionbody">
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2009-12-08 04:52:22 +00:00
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<div class="paragraph"><p>Cpuset is licensed under the GNU GPL V2 only.</p></div>
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2009-12-08 04:49:23 +00:00
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</div>
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2009-12-08 04:52:22 +00:00
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<h2 id="_copyright">COPYRIGHT</h2>
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2009-12-08 04:49:23 +00:00
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<div class="sectionbody">
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2010-02-11 20:42:56 +00:00
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<div class="paragraph"><p>Copyright (c) 2008-2010 Novell Inc.</p></div>
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2009-12-08 04:49:23 +00:00
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</div>
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<h2 id="_author">AUTHOR</h2>
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2009-12-08 04:52:22 +00:00
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<div class="paragraph"><p>Written by Alex Tsariounov <alext@novell.com>.</p></div>
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2009-12-08 04:49:23 +00:00
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</div>
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<h2 id="_see_also">SEE ALSO</h2>
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<div class="sectionbody">
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2009-12-08 04:52:22 +00:00
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<div class="paragraph"><p>cset(1), cset-proc(1), cset-shield(1)</p></div>
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<div class="paragraph"><p>/usr/share/doc/packages/cpuset/html/tutorial.html</p></div>
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<div class="paragraph"><p>taskset(1), chrt(1)</p></div>
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<div class="paragraph"><p>/usr/src/linux/Documentation/cpusets.txt</p></div>
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<div id="footer">
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<div id="footer-text">
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2010-02-11 20:42:56 +00:00
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Version 1.5.3<br />
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Last updated 2010-02-11 13:36:30 MDT
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2009-12-08 04:49:23 +00:00
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