## OpenACC™ wait directive

  Causes the host to wait until asychronous activities complete. Asychronous activities are specified via an `async` clause on a `parallel`, `kernels`, or `update` directive.

`!$acc wait` [ `(` expression `)` ] | `#pragma acc wait` [ `(` expression `)` ]

The expression must be of integer type.

For more information, see Section 2.12.2 of The OpenACC™ Application Programming Interface, Version 1.0, available from http://www.openacc-standard.org.

OpenACC™ Application Programming Interface Version 1.0