Edinburgh Informatics students will have accounts on the local University system Eddie - the following points will be different from the Sharpen exercise sheet which is written for ARCHER. Note that documentation is available at https://www.wiki.ed.ac.uk/display/ecdfwiki/Documentation To access Eddie: ssh @eddie.ecdf.ed.ac.uk and enter your EASE password. There are three extra files supplied in the source code bundle: o Makefile-eddie o sharpen-eddie.sge o submit-eddie.sge First, to compile the code type: module load intel # only need to do this once per login session module load impi # only need to do this once per login session make -f Makefile-eddie To run on the login node on, e.g., 4 processors: mpirun -n 4 ./sharpen To get real performance figures you will need to submit to the backend compute nodes via the Sun Grid Engine (SGE) batch system. All jobs need to be charged to a budget - change the default budget "ecdf_physics" in sharpen-eddie.sge #$ -P ecdf_physics to one of the groups you get when you type: groups $USER You can then submit this batch script using the command: ./submit-eddie.sge and follow the progress of your job using the "qstat" command. The submit script is set to run on 4 processors - it contains the line qsub -V -pe impi_fillup_mark2 4 sharpen-eddie.sge To change the number of processors, just change this number. We have put this command in a separate script for convenience - you can type the qsub command directly at the command line if you prefer.