parallel twoIsosurfaces(model1, model2) {
  var msg = ""
  process { 
	msg += "process 1..."
	echo @{msg}
	isosurface s1 model @model1 molecular; color isosurface red 
  }
  process { 
	msg += "process 2..."
	echo @{msg}
	isosurface s2 model @model2 molecular; color isosurface green 
  }
  echo "starting processes..."
}

load files "1crn.pdb" "1blu.pdb"
frame *
refresh;
t = now()
twoIsosurfaces("1.1", "2.1")
print "time in milliseconds: " + (now() - t)