Grads answers different on different machines with same version...any idea?

[Douglas Clark]

Bernd is right that you can use "options byteswapped", but this will not work if you try to use GrADS to read a file on the same platform that it was written on - which is a pretty common occurence - as  GrADS will ALWAYS try to reverse the order of the bytes.

Better to specify the "endianess" by writing
options big_endian
or
options little_endian
in the control file.

See control file > options at
http://grads.iges.org/grads/gadoc/gadocindex.html

Doug


>>> bernd.becker at METOFFICE.GOV.UK 07/11/2008 11:12:58 >>>
Mald,

you may be running into the problem of "endianess".

Your pc at home is little endian and your
work boxes are probably bigendian.

If your data files are not endianess aware,
you will probably have to add the option "byteswapped"
in your ctl file.

Good luck!
Bernd.

On Fri, 2008-11-07 at 16:04 +0500, Mald MM5 wrote:
> Hi there,
>
> I have got grads 1.8SL11 running on an AIX system running UNIX at my
> institution and the am using it fine. I get the results I expected
> using this version.
> However I downloaded version 1.8SL11binary for linux at home and
> installed on my PC running openSuse 11.0. I used the same data file
> and the control file that I was using at the institution.
>
> To my surprise, I do not get the same output. For example I was trying
> to view the terrain heights. At home, the contour intervals are given
> as "Contouring: -4.5e+37 to 0 interval 5e+36". Whereas at the
> institution I get "Contouring: 0 to 1.8 interval 0.2". And for all the
> fields its doing the same.
>
> Any ideas why this might be happening. I downloaded the latest version
> 2.0 from the link i686 at home. And ended up the same. Something to do
> with my system?
>
> Thanks
> Mald
>
>
--
Bernd Becker   The Monthly Outlook
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