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This section provides a variety of information that may prove to be useful in the configuration and management of your EASA system’s set of compute servers.
This section provides tips on how to better control the throughput of EASAP runs on your set of compute servers.
This section provides tips on how to make better use of computer resources that may not be dedicated solely for use by your EASA system.
easarun_low.bat. This run file will submit EASA processes with a low priority on the compute server, thus minimizing the interruption caused to any interactive users of the computer.
easarun_evenings.bat. This run file will submit EASA processes only after 6:00 PM local time and before 7:00 AM. These times can be modified by editing the
easarun_evenings.batfile, which is located in the
Note: EASA will not stop any runs submitted for overnight computing, so only software applications that will finish running before the next work day begins should be allowed to run on evenings-only compute servers.
EASA Run Files are used to run processes on compute servers. The EASA Run Files shipped with EASA and available for use with compute servers are located in the
folder. The EASA Run File used for a specific compute server is determined by the Run File parameter of the Server Processing object selected in the Server Processing parameter of the Compute server object.
Modifications to the EASA Run File used in a Server Processing object can allow new behavior and functionality to be introduced into the way EASA submits processes to compute servers for processing. For example, EASA Run Files have been modified to provide the following enhancements:
easarun_evenings.batand works with SSH and RSH communication approaches, but not WSCS approach).
easarun_stoppable.bat). See Stopping Jobs on Windows Compute Servers below for details.
If you are interested in implementing one of the enhancements listed above for which the Run File is not available within EASA, please contact your designated EASA support representative for further assistance.
The default method used for stopping processes on Windows compute servers is to terminate the EASA Run File script initially used to start the process running. This default method can sometimes prove to be ineffective in stopping all processes initiated by the EASA Run File and “child” processes can be left running. By using a modified EASA Run File and making other configuration changes, improvements can be made when configuring a Windows XP or later compute server.
You should follow the procedure described below to improve the stopping of processes on Windows XP or later compute servers:
<EASAROOT>/webapps/easa/etc/easa_process.exeto the system directory on the compute server:
easarun_stoppable.batand its Stop Using parameter to
Now when users stop jobs that have been sent to a Windows compute server for processing, the command
easa_process.exe -stop will be executed, which will end the process using its PID.
Under EASA→Administrator→Configure→Compute Servers, table allows “closed to business” status flag to be set for each remote server to allow a rolling update of a group of servers. A server with “Closed to business” status will refuse new EASAP's while allowing currently running EASAPs to complete.