Difference between revisions of "Template:JAVA OPTIONS"
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export _JAVA_OPTIONS="-Xms1g -Xmx4g" | export _JAVA_OPTIONS="-Xms1g -Xmx4g" | ||
| − | will set Java heap memory usage to a minimum of 1g and a maximum of 4g. Please note that ''_JAVA_OPTIONS'' environment variable overrides the respective command-line arguments | + | will set Java heap memory usage to a minimum of 1g and a maximum of 4g. Please note that ''_JAVA_OPTIONS'' environment variable overrides the respective command-line arguments. For example, the above <code>'_JAVA_OPTIONS'</code> variable will override the <code>'-Xmx500m'</code> argument in |
| + | |||
| + | ''java -Xmx500m -jar someprogram.jar...''. | ||
Latest revision as of 15:26, 19 December 2014
To set the heap memory to be used by a java program export the _JAVA_OPTIONS variable in the environment the program runs in - either on the command line, in a personal module, or in a job script. For example,
export _JAVA_OPTIONS="-Xms1g -Xmx4g"
will set Java heap memory usage to a minimum of 1g and a maximum of 4g. Please note that _JAVA_OPTIONS environment variable overrides the respective command-line arguments. For example, the above '_JAVA_OPTIONS' variable will override the '-Xmx500m' argument in
java -Xmx500m -jar someprogram.jar....