6.1 The Autoscoping Data Scope Clause

The autoscoping data scope clause is a Sun extension to the OpenMP specification. A user can specify a variable to be autoscoped by using one of the following two clauses.

6.1.1 __auto Clause

Syntax:

__auto(list-of-variables)

The __auto clause on a parallel construct directs the compiler to automatically determine the scope of the named variables in the construct. (Note the two underscores before auto.)

The __auto clause can appear on a PARALLEL, PARALLEL DO/for, PARALLEL SECTIONS, or on a Fortran 95 PARALLEL WORKSHARE directive.

If a variable is specified on the __auto clause, then it cannot be specified in any other data scope clause.

6.1.2 default(__auto) Clause

The default(__auto) clause on a parallel construct directs the compiler to automatically determine the scope of all variables referenced in the construct that are not explicitly scoped in any data scope clause.

The default(__auto) clause can appear on a PARALLEL, PARALLEL DO/for, PARALLEL SECTIONS, or on a Fortran 95 PARALLEL WORKSHARE directive.