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When the language specified in an extrinsic definition is
Fortran the rules are basically the same as those for HPF
because HPF is based on the Fortran standard. There are a few issues
to consider in this case:
- Only Fortran constructs should be used. Features such as
asynchronous I/O or the HPF library may not be supported.
- It is recommended that Fortran language processors to be used
for this purpose be extended to support the HPF_LOCAL
distribution query routines and the associated
- Assuming the intent is to compile the extrinsic routines with a
Fortran processor, these routines should be in separate files rather
than incorporated into files with HPF source code.
- The programmer should expect any HPF directives may be ignored.