Last fixes. Multi nodes is working now.

daliuge-engine/dlg/deploy/remotes.py

@@ -46,7 +46,7 @@ def __init__(self, options, my_ip):
 
     def _get_ip_from_name(self, hostname):
         rx = re.compile("^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$")
-        if re.match(hostname):   # already an IP??
+        if rx.match(hostname):   # already an IP??
             return hostname
         else:
             return socket.gethostbyname(hostname)
@@ -55,10 +55,10 @@ def _set_world(self, rank, size, sorted_peers):
         """Called by subclasses"""
         self.rank = rank
         self.size = size
-        if len(set(self.sorted_peers)) != self.size:
+        if len(set(sorted_peers)) != self.size:
             raise RuntimeError("More than one task started per node, cannot continue")
         # convert nodes to IP addresses if hostnames
-        self.sorted_peers = list(map(lambda x:self.get_ip_from_name, 
+        self.sorted_peers = list(map(lambda x:self._get_ip_from_name(x), 
             sorted_peers))
         nm_range = self._nm_range()
         if nm_range[0] == nm_range[1]: