Newbie questions!

Erick Rivera Fernandez errivera at CARIARI.UCR.AC.CR
Mon Nov 14 14:27:05 EST 2005


Hi Bob, I think you have to put your files in the following directory:
C:\Program Files\PCGrADS\win32e or
"Path_where_PCGrADS_is_installed"\win32e
Regards,


Erick Rivera
Centro de Investigaciones Geofisicas
Universidad de Costa Rica
San Pedro de Montes de Oca, Costa Rica
Tel: (506) 207-5320
Fax: (506) 234-2703
E-mail: errivera at cariari.ucr.ac.cr
         errivera at cigefi.ucr.ac.cr



On Mon, 14 Nov 2005, Bob wrote:

> Still no luck!! Whatever I do, I still get those can`t open file errors.
>
> Thanks for your help though. I`m running the win32e version.
>
>
>
>  ----- Original Message -----
>  From: Jean Pierre Arabonis
>  To: GRADSUSR at LIST.CINECA.IT
>  Sent: Monday, November 14, 2005 12:49 PM
>  Subject: Re: Newbie questions!
>
>
>  Hi Bob
>      Should not matter where you put them, check that the model.ctl file
has the fist line looking like so:
>  dset ^model.grb
>  and not pathed somewhere else, check the permissions on teh files you
need to at least be able to read them.
>  Note that if you are running grads from another directory than the one
where the files reside you bust give the
absolute path to the control file, eg
>
>  ga> open /your full path/model.ctl
>
>  Your directory holding the files should look somthing like so:
>
>  arabonis at baltic:/mnt/pacific/data/gradstut/atmosdata> ls -lat
>  total 593
>  -rw-r--r--  1 arabonis osis 593060 Jan 14  2003 model.grb
>  -rw-r--r--  1 arabonis osis   4633 Jan 14  2003 model.gmp
>  drwxr-xr-x  2 arabonis osis    144 Jan 14  2003 ./
>  -rw-r--r--  1 arabonis osis    651 Jan 14  2003 model.ctl
>  drwxr-xr-x  4 arabonis osis    104 Jan 14  2003 ../
>
>  and the ctl file like so:
>
>  arabonis at baltic:/mnt/pacific/data/gradstut/atmosdata> cat model.ctl
>  dset ^model.grb
>  title "Sample Model Data for GrADS Tutorial"
>  undef 1e+20
>  dtype grib
>  index ^model.gmp
>  xdef 72 linear 0.000000 5.000000
>  ydef 46 linear -90.000000 4.000000
>  zdef 7 levels
>  1000 850 700 500 300 200 100
>  tdef 5 linear 0Z2jan1987  1dy
>  vars 8
>  ps        0    1,  1,  0,  0 Surface pressure [hPa]
>  u         7   33,100 Eastward wind [m/s]
>  v         7   34,100 Northward wind [m/s]
>  z         7    7,100 Geopotential height [m]
>  t         7   11,100 Air Temperature [K]
>  q         7   51,100 Specific humidity [kg/kg]
>  ts        0   11,105,  2 Surface (2m) air temperature [K]
>  p         0   59,  1,  0,  0 Total precipitation rate [kg/(m^2*s)]
>  endvars
>
>  Hope this helps
>      JP
>
>
>
>  Bob wrote:
>
>    Thankyou,
>
>    I have the datafiles all in the same directory. I have placed them in
the main Grads folder, and tried in just about
every other folder too but I still get the error.
>
>    I can`t think of anything else to try!! I`ve been waiting to play
around with Grads for ages, but find this
frustrating that I can`t even get off the starting block :D
>
>    Is there a specific place where the datafiles (ctl, grib) should go?
>
>
>    Ron.
>      ----- Original Message -----
>      From: Jean Pierre Arabonis
>      To: GRADSUSR at LIST.CINECA.IT
>      Sent: Monday, November 14, 2005 12:25 PM
>      Subject: Re: Newbie questions!
>
>
>      Hi Bob
>          Welcome to grads, firstly I feel that grads is better suited to
the linux environment - besides being basically
anti-windows, you'll find a lot of the users of grads are working in a
unix/linux environment and user support is probably
better in that area, further for automation of grads scripts, linux is
very flexible (which seems to be your ultimate
goal).
>          It seems though there have been some library issues with recent
versions of grads on certain flavours of linux,
red hat does not seem to be one of them   but a trawl of the archives
should resolve any compatibility issues.
>          With regard to load, thats going to depend on your input files
and what you do with them, however grads is very
stable and will generally complete the task without falling over. I have
grads running on an old 450 MHz P2 running
scripts and it works just fine.
>          With regard to your problem with the model file it seems to me
to be a path problem, the data file and ctl file
must be in the same directory.
>          Good Luck
>             Jean Pierre
>
>
>      Bob wrote:
>
>        Hi all,
>
>        I`ve never used Grads before, so it`s a completely new ball game
for me!! The most ambitious I`ve been is to use
a desktop utility likes DAWS!
>
>        I have several questions to ask, where the answers could not be
found on the Cola homepage.
>
>        I would like to install Grads on my server, mainly so I can
ingest and display grib data/model charts on my
website. What kind of server loads would I be looking at here? I need to
know, whether my server can cope with it it!! Can
someone shed some light on using Grads on a redhat linux based server?
>
>        Secondly, I haven`t looked through any of the documentation as
yet. I thought it might be a good idea to install
the windows version locally on my W2K PC first, so I can get an idea of
how Grads works.
>
>        I believe I have it installed correctly, but I can`t even get off
the starting block!! I tried to open the demo
model.ctl file that comes with the online tutorial - all I get are errors
`Scanning description file:  model
>        Open Error:  Can't open description file`
>
>        Do I need to place the ctl, grib and gmp in a certain folder? All
the tutorial says is download them and place
them locally. Thanks.
>
>        Regards,
>        Ron.
>
>
> --
> Jean Pierre Arabonis
> arabonis at egs.uct.ac.za
> Tel 021 780 1021 cell 084 401 1365
> This email is 100% Microsoft Free
>
>
> --
> Jean Pierre Arabonis
> arabonis at egs.uct.ac.za
> Tel 021 780 1021 cell 084 401 1365
> This email is 100% Microsoft Free
>



More information about the gradsusr mailing list