182 lines
2.8 KiB
HTML
182 lines
2.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML
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><TITLE
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>Cluster Mask</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="The openMosix HOWTO"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Administrating openMosix"
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HREF="admin.html"><LINK
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REL="PREVIOUS"
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TITLE="the userspace-tools"
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HREF="x739.html"><LINK
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REL="NEXT"
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TITLE="Tuning Mosix"
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HREF="tuning.html"></HEAD
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><TR
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>The openMosix HOWTO: </TH
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>Prev</A
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>Chapter 8. Administrating openMosix</TD
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><A
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NAME="AEN861"
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></A
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>8.4. Cluster Mask</H1
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><P
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>(by Moshe Bar)</P
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><P
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>Several people have asked for a feature in openMosix which allows to
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specifiy to which nodes a given process and it's children can migrate
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and to which nodes it cannot.</P
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><P
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>Simone Ettore has just committed a new patch to the CVS which allows
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you to do just that.</P
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><P
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>Here is how it works:
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<P
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></P
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><UL
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><LI
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><P
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>/proc/[pid]/migfilter enable/disable the capability of filter migration.</P
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></LI
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><LI
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><P
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>/proc/[pid]/mignodes is a bit-list of nodes. The bit position of a node
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is calculated as 2^(PE-1). PE is node number.</P
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></LI
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><LI
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><P
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>/proc/[pid]/migpolicy is the policy of the filtering:
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0=DENY: the process can migrate in all nodes except when the relative
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bit on mignodes is 1
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1=ALLOW: the process can migrate in all nodes where the relative bit on
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mignodes is 1</P
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></LI
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></UL
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></P
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><P
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> We are shortly going to release also a simple user-land tool to set the
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node mask, but I would like you guys to give it a try asap before we
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release it as openMosix 2.4.20-3.</P
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></DIV
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>Prev</A
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>Home</A
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>the userspace-tools</TD
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>Tuning Mosix</TD
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> |