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Re: ssnwait routine

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  • Subject: Re: ssnwait routine
  • Date: Fri, 23 Dec 2005 13:48:46 -0500
Hi everyone,

With this modification to ssnwait.f, I no longer have a runtime warning.

Thanks and Happy Holidays!

Christian
UQAM

2005/12/16, Ron McTaggart-Cowan <address@hidden>:
> Hi guys - I've managed to reproduce Christian's error w/ a minimalist C
> program ... but it *only* appears on x86_64 systems -- identical code
> runs w/o warnings w/ FC4 on i386.  I'll stick in the mod that you
> suggest and take if for another spin on the 64bit machine ... will keep
> you posted :)
> ron
>
> On Fri, 2005-12-16 at 12:47 -0700, Steve Chiswell wrote:
> > Ron and Kevin,
> >
> > I'll ammend my previous support reply about the ssnwait.f routine which
> > calls:
> > CALL CSSLEEP  ( nanosec, ier )
> >
> > Here, the nanosec value is defined in GEMPRM.PRM
> > PARAMETER       ( NANOSEC = 59999999 )
> >
> > By passing this parameter value to cssleep as "long *nanosec",
> > the gcc compiler is treating the quantity as a modifiable quantity
> > which seems to confuse the optimizer in certain cases.
> >
> > Even though the cssleep routine does not modify the value, it could-
> > which is a runtime error seen in several Garp routines recently,
> > so I've modified the ssnwait.f routine as follows:
> >
> >         nsecval = nanosec
> >         CALL CSSLEEP  ( nsecval, ier )
> >
> > I haven't seen Christian's error here, but he may want to try
> > that possibility to see if that is related or not.
> >
> > Steve Chiswell
> > Unidata User Support
> >
>
>


--
Christian Pagé
http://meteocentre.com/    http://meteoalerte.com/
Etudiant au Doctorat en Sciences de l'environnement UQAM