+die "\$myalias \& \$mycall are the same ($mycall)!, they must be different (hint: make \$mycall = '${mycall}-2';).\n" if $mycall eq $myalias;
+
+$lockfn = localdata("cluster.lck"); # lock file name
+if (-e $lockfn) {
+ open(CLLOCK, "$lockfn") or die "Can't open Lockfile ($lockfn) $!";
+ my $pid = <CLLOCK>;
+ chomp $pid;
+ die "Sorry, Lockfile ($lockfn) and process $pid exist, a cluster is running\n" if kill 0, $pid;
+ close CLLOCK;
+}
+
+$DXUser::v3 = 1;
+
+if (-e "$userfn.v2" || -e "$userfn.v3") {