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i set MPJ_HOME in the environment variable and when i execute mpjboot machines i get this error

Error: MPJ_HOME environment variable not set!!!

java.lang.Exception: MPJ_HOME environment variable not set!!!

at runtime.daemon.MPJDaemon.<init>(MPJDaemon.java:87)



at runtime.daemon.MPJDaemon.main(MPJDaemon.java:252)

[server] Unable to start MPJ Express daemon
Luis Antonio García González
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1 Answers1

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MPJDaemon class is executed on compute nodes, it listens for the requests from mpirun module (running on head machine)

Please make sure that MPJ_HOME variable is set in all compute nodes you listed in machines file

Hamza Zafar
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  • 'compute nodes' in the sense what? My machines file include two IP addresses, first one is the IP address of head node from where `mpjboot machines` command is issued, and second IP address is of the machine where exactly the same configuration of mpj is done. But I am still getting the error `MPJ_HOME variable isn't set!!!` despite being already set correctly in .bashrc on both the machines. – user1612078 Apr 24 '15 at 03:47
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    if you are using ubuntu, try writing the export MPJ_HOME statements on the top of your bashrc – Hamza Zafar Apr 24 '15 at 19:19