#!/bin/bash

#############################################################
# This example produces a very simple plot and              #
# saves it as Matlab figure file and as PNG file            #
#############################################################

#############################################################
# set qsub options                                          #
#############################################################
# run in low.q
#$ -l low

# request enough memory
#$ -l h_vmem=8G,memory=8G,h_stack=8M

# request 1 matlab license.
#$ -l matlab=1

# Name the job 'Matlab'
#$ -N Matlab

# send e-mail after job has finished
# use the -M option to define your e-mail address
# #$ -M meine-email@example.org
#$ -m e

# join stdout and stderr in one file
#$ -j y

#############################################################
# output hostname and date (comment out if not needed)      #
#############################################################
echo "Runnning Matlab on host " `hostname`
echo "Starting Matlab at " `date`

#############################################################
# launch matlab                                             #
#############################################################

# run non-interactive Matlab session
# use no display (-nodisplay)
# don't show splash screen at startup (-nosplash)
# don't start the matlab desktop (-nodesktop)
# use software opengl (-softwareopengl)
# only use single threaded computations (limit to use of 1 core, -singleCompThread)
# execute all matlab commands between '<< END' and matching 'END'

# Don't forget to add 'exit' and 'END' after replacing
# the commands with your own!

/opt/matlab/bin/matlab -nodisplay -nosplash -nodesktop -softwareopengl -singleCompThread << END

  % get environment variable JOB_ID
  jobid=str2num(getenv('JOB_ID'));
  if isempty(jobid)
     jobid = 0;
  end

  % create filenames for the figure
  filename=sprintf('matlab_figure_%d', jobid);

  % create new empty figure and save figure handle
  fh = figure();

  % draw plot
  plot(-pi:0.01:pi, sin(-pi:0.01:pi));

  % save figure as matlab figure and PNG
  saveas(fh, filename, 'fig');
  saveas(fh, filename, 'png');

  % EXIT MATLAB
  exit;

END

#############################################################
# output date (comment out if not needed)                   #
#############################################################
echo "Matlab finnished at " `date`