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Running Hama Over InfiniBand
- Java 7+ required.
Create an SDP configuration file
Each BSP peer (task) will have its own port number for communicating with others. For example, if you set set bsp.peer.port to 61000 and set bsp.tasks.maximum to 5, BSP peers will use the port range from 61000 to 61005.unmigrated-wiki-markup
To enable SDP^\[1\]^ support for BSP peers, create a configuration file like the following enable SDP support for BSP peers, create a configuration file like the following sample:
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[edward@192.168.10.1 ~]# cat {$HAMA_HOME}/conf/sdp.conf
# Use SDP when binding to
bind 192.168.10.1 61000-61010
# Use SDP when connecting to
connect 192.168.10.0/24 61000-61010
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<property>
<name>bsp.child.java.opts</name>
<value>-Dcom.sun.sdp.conf={$HAMA_HOME}/conf/sdp.conf -Xmx1024m</value>
<description>Java opts for the groom server child processes.
The following symbol, if present, will be interpolated: <at:var at:name="taskid" /> is replaced
by current TaskID. Any other occurrences of '@' will go unchanged.
For example, to enable verbose gc logging to a file named for the taskid in
/tmp and to set the heap maximum to be a gigabyte, pass a 'value' of:
-Xmx1024m -verbose:gc -Xloggc:/tmp/<at:var at:name="taskid" />.gc
The configuration variable bsp.child.ulimit can be used to control the
maximum virtual memory of the child processes.
</description>
</property>
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