HP 3000 Manuals

HP FORTRAN 77/iX Reference

LOCALITY Directive 

The LOCALITY directive groups the generated code from a program unit
together in the same general memory area as other program units having
the same LOCALITY name.

Syntax 

$LOCALITY {'name'}
          {"name"}

Default               None; procedures that call each other are not
                      necessarily grouped in the same general memory
                      area.

Location              The LOCALITY directive must appear before any
                      nondirective statements in the program unit.

Toggling/ Duration    Cannot be toggled after the appearance of
                      nondirective statements in a program unit.

Impact on             This directive can improve run-time performance
Performance           because grouping procedures that frequently call
                      each other makes memory access more efficient.

MPE/iX 5.0 Documentation