Communication

• The conformance rules for the previous operations mean no communication is needed in their implementation.
• The array member remap takes an argument of the same shape as the array (which does not, however, conform with the array) and copies its value into the array.

       void ArrayInt    :: remap(ArrayInt) ;
       void ArrayFloat  :: remap(ArrayFloat) ;
       void ArrayDouble :: remap(ArrayDouble) ;
       ...
  

  Eg

       c.remap(d) ;  // c = d
  

  This operation clearly does require communication.
• shift is similar to remap, except that the argument does conform with the array, but the copy is a shifted copy.

  Again, communication is required.

• Other analogous members are provided.