-print "<?xml version='1.0'?>\n";
-print "<!DOCTYPE platform_description SYSTEM \"surfxml.dtd\">\n";
-print "<platform_description version=\"1\">\n\n";
-print " <!-- The master, arguments :: all others nodes -->\n";
-print " <process host=\"$host[0]\" function=\"master\">\n";
-
-# put the slaves as argument of the master