PROCESSORS_MAP
BEGIN
Multi_Comp_Start
2              (this line is optional)
ice   0  2
land  1  3
Multi_Comp_End
coupler
END 
ADD any comments in this line and below.
  for multiple components in single executable, 
  include component info between Multi_Comp_Start
  and Multi_Comp_End, list the number of components (optional),
  and each component's relative processor_id in
  that executable world. Up to 5 strings could also be
  attached in the end to pass input and output file names
  and some other info.  Processor overlap is 
  allowed within each multi-component executable but
  NOT within each multi-instance executable.