Task #9522: Use 2 cores/process by default, to more evenly spread resources...

Task #9522: Use 2 cores/process by default, to more evenly spread resources and prevent extreme load figures. Almost all pipelines have a step that requires 2 cores.

CEP/Pipeline/framework/lofarpipe/support/remotecommand.py

@@ -184,7 +184,7 @@ def run_via_custom_cmdline(logger, host, command, environment, arguments, config
 
       command      = commandStr,
       job_name     = jobname(command),
-      nr_cores     = resources.get("cores", 1),
+      nr_cores     = resources.get("cores", 2),
     ).split()
 
     logger.debug("Dispatching command to %s with custom_cmdline: %s" % (host, full_command_line))