4.6.5 Fortran 2003 Asynchronous I/O

The compiler recognizes the ASYNCHRONOUS specifier on I/O statements:

ASYNCHRONOUS=[’YES’ | ’NO’]

This syntax is as proposed in the Fortran 2003 standard, Chapter 9. In combination with the WAIT statement it allows the programmer to specify I/O processes that may be overlapped with computation. While the compiler recognizes ASYNCHRONOUS=’YES’, the draft standard does not require actual asynchronous I/O. In this release of the compiler, I/O is always synchronous.