GRAM Tutorial - Part II

GRAM Tutorial - Part II NGS Induction, NeSC EdinburghGuy Warner, NeSC Training Team This tutorial extends the previous tutorial into the more advanced topics of multiple jobs running simultaneously, the globus GRAM API and using the Message Passing Interface (MPI). The assumption is made that an understanding of job submission and compiling code was acquired from the previous tutorial. Please consult the previous tutorial, which may be found here, if in any doubt.This tutorial optionally involves some editing of files. To use a graphical editor you must first launch Exceed - double click the "Exceed" shortcut on your desktop. After the splash screen no further screen will appear - this is what is meant to happen. To edit a file use the command kwrite &where is the name of the file you wish to edit. You can safely ignore any messages that appear in your terminal window. When you exit you may also see a message about "This may end your X session" - just click "Ok". 1. Before starting the tutorial it is necessary to ensure you have a running grid-proxy. Open a putty session onto "lab-07". You can check the state of your proxy by typing grid-proxy-info -timeleftThis shows the amount of time left in your proxy (in seconds). If this is zero or low (anything less than 10800 (3 hours) can be considered as low) then restart your proxy by running the following commands grid-proxy-destroygrid-proxy-init2. The simplest form of project ...