Q. What do you mean by Processor Arrangements?
It is a very common event in data parallel programming to combine many processors to execute specific tasks. To achieve this objective HPF provides a directive known as PROCESSORS directive. This directive states a theoretical processor grid. The PROCESSORS directive is used to specify shape and size of an array of abstract processors. These don't have to be of same shape as underlying hardware. The syntax of a PROCESSORS directive is:
!HPF$ PROCESSORS array_name (dim1, dim 2, ....dim n)
Where array_name is combined name of abstract processors. Dim i specifies size of ith dimension of array_name.