(j3.2006) (SC22WG5.3998) [ukfortran] New summary of coarrays

[N.M. Maclaren]

I would add something to the end of section 15.3, along the lines of:

While the atomic subroutines are very simple, their consequences are not, 
and the effect of interleaving atomic actions in multiple images may vary 
between compilers. In some cases, they will appear to be globally 
consistent, but may not do so under all compilers. The exact details are 
intentionally left processor dependent, and programmers should read their 
compiler's release notes before using atomic subroutines.


Regards,
Nick Maclaren,
University of Cambridge Computing Service,
New Museums Site, Pembroke Street, Cambridge CB2 3QH, England.
Email:  nmm1 at cam.ac.uk
Tel.:  +44 1223 334761    Fax:  +44 1223 334679