CoordThe dim and crd fields of the base class should define the process dimension of the parent range, and the associated coordinate of processes holding the location.
temThe template subscript associated with the location.
subThe shell subscript associated with the location. Undefined if the range has level 0.
blkUsed only for level 2 ranges. This field specifies the block that contains the location. Technically it is a shell subscript in the immediate kernel of the parent range (that kernel being a level 1 range).