https://wiki.cs.earlham.edu/index.php?action=history&feed=atom&title=Cluster%3A_C3_Tools_README 2026-06-14T06:11:08Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wiki.cs.earlham.edu/index.php?title=Cluster:_C3_Tools_README&diff=10077&oldid=prev 2009-08-03T16:38:13Z

<p>New page: &lt;pre&gt;&lt;nowiki&gt; C3 version 4.0: Cluster Command &amp; Control Suite Oak Ridge National Laboratory, Oak Ridge, TN, Authors: M.Brim, R.Flanery, G.A.Geist, B.Luethke, S.L.Scott (C...</p> <p><b>New page</b></p><div>&lt;pre&gt;&lt;nowiki&gt;<br /> C3 version 4.0: Cluster Command &amp; Control Suite<br /> Oak Ridge National Laboratory, Oak Ridge, TN,<br /> Authors: M.Brim, R.Flanery, G.A.Geist, B.Luethke, S.L.Scott<br /> (C) 2001 All Rights Reserved<br /> <br /> <br /> <br /> for help or reporting a bug please e-mail luethkeb@ornl.gov or <br /> scottsl@ornl.gov<br /> <br /> For installation instructions see INSTALL<br /> <br /> for examples of scripts using the C3 tools and it&#039;s related libraries see<br /> the contrib directory<br /> <br /> node position in the c3.conf file is important. C3 version 3 and above allows <br /> the use of node ranges on the command line. The numbers used for position refer to <br /> the nodes position in the c3.conf file. To use an example, take the following<br /> c3.conf file:<br /> <br /> cluster local {<br /> htorc-00:node0 #head node<br /> node[1-64] #compute nodes<br /> exclude 60<br /> node[128-256]<br /> }<br /> <br /> this cluster is made up of 192 nodes. the range of name &quot;node[1-64]&quot; is listed<br /> as slots 0-63 in the list. the range of names &quot;node[128-256] fill up the slots<br /> 64-192. As you can see the slot a node fills in a command line range does not<br /> necessarily coincide with it&#039;s node name. It is also a reason to explicitly<br /> specify that a node is dead (as opposed to commenting that line out), that <br /> way the node at slot 63 is always the machine labeled node64. There are two <br /> tools added to the C3 tools suite to help manage node numbers. cname is given<br /> a name and returns its position, or slot, that it occupies. cnum takes a range<br /> and returns what machine names are in that slot. Please see the c3.conf(5) and<br /> c3-range(5) man pages for more details.<br /> <br /> Version 4.0 and above allow the use of a scalable configuration. You divide your<br /> cluster into smaller sub-clusters than execute in a parallel. For example<br /> <br /> cluster part1 {<br /> node1<br /> node[1-10]<br /> }<br /> cluster part2 {<br /> node11<br /> node[11-20]<br /> }<br /> <br /> is a 20 node cluster. Since C3 can easily handle up to about a 64 node fanout on<br /> most hardware the maximum recommended size is 64 64-way clusters, or 4096 nodes. <br /> See c3-scale(5) for full details.<br /> &lt;/nowiki&gt;&lt;/pre&gt;</div>

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