Re: [ferret_users] ,return=lend and constants

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi
Thanks Russ.  This may be related to another bug that's already been 
reported having to do with variables that are constants.  I'll get the 
details from Ryo and we'll report back what we find.

Ansley


On 10/17/2012 8:43 PM, Russ Fiedler wrote:
> Ryo,
>
> It looks to be related to the new E and F axes.
>
> Defining refp to be on the same grid as salt and temp
>
> let refp = 0*salt
>
> works with V6.82.
>
> Russ
>   
>
> On Thu, 2012-10-18 at 12:55 +1100, Ryo Furue wrote:
> > Ferret users,
> >
> > Has anybody seen this behavior? Is this a bug?  Basically,
> > "return=lend" tries to allocate a lot of memory in some cases.
> >
> > yes? set data bug.nc
> > yes? let refp = 0
> > yes? let den1 = RHO_UN(salt,temp,0)    !! Good
> > yes? let den2 = RHO_UN(salt,temp,refp) !! Bad
> > yes? say `den1,return=lend`
> >   !-> MESSAGE/CONTINUE 2
> > 2
> > yes? say `den2,return=lend`
> >   **ERROR: request exceeds memory setting: 10 Mwords were requested.
> > [ . . . remaining error messages elided . . .]
> >
> > The dataset bug.nc contains salt(i,j,k,l) and temp(i,j,k,l)
> > with l = 1:2.  I'm attaching the results of "show grid" below.
> >
> > If you are interested and you cannot reproduce this error,
> > I'll send the dataset to you.
> >
> > I'm currently using
> > FERRET v6.81 Linux 2.6.32-279.1.1.el6.x86_64 32-bit - 07/23/12
> >
> > The same script didn't cause this error some versions ago.
> >
> > Regards,
> > Ryo
> > --------------------------------
> > yes? show grid den1
> >      GRID GCF1
> >   name       axis              # pts   start                end
> >   LONGITUDE_T LONGITUDE        564mr   104.17E(104.17)      68.167W(291.83)
> >   LATITUDE_T LATITUDE          168 r   25.833S              29.833N
> >   DEPTH_T   DEPTH (m)           51 i-  2.5                  5745
> >   TIME1     TIME                 2 r   21-JAN-2031 00:00    01-FEB-2031 00:00
> >   normal    E
> >   normal    F
> > yes? show grid den2
> >      GRID (G002)
> >   name       axis              # pts   start                end
> >   LONGITUDE_T LONGITUDE        564mr   104.17E(104.17)      68.167W(291.83)
> >   LATITUDE_T LATITUDE          168 r   25.833S              29.833N
> >   DEPTH_T   DEPTH (m)           51 i-  2.5                  5745
> >   TIME1     TIME                 2 r   21-JAN-2031 00:00    01-FEB-2031 00:00
> >   ABSTRACT  E              9999999 r   1                    9999999
> >   ABSTRACT  F              9999999 r   1                    9999999