#open log file
	$path="";											#path to the working directory
	
	$logname="rez_inf.txt";
	open(LOG, ">$path$logname") || die "$0: $path$logname will not open.";
	close(LOG);
	
	$logname="rez_fifo.txt";
	open(LOG, ">$path$logname") || die "$0: $path$logname will not open.";
	close(LOG);
	
	$logname="rez_lru.txt";
	open(LOG, ">$path$logname") || die "$0: $path$logname will not open.";
	close(LOG);
	
	$logname="rez_lfd.txt";
	open(LOG, ">$path$logname") || die "$0: $path$logname will not open.";
	close(LOG);
	
	$logname="rez_pd.txt";
	open(LOG, ">$path$logname") || die "$0: $path$logname will not open.";
	close(LOG);