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20020207: Grid to large for dcgrib

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  • Subject: 20020207: Grid to large for dcgrib
  • Date: Thu, 07 Feb 2002 10:34:50 -0700
Andy,

See:
http://www.unidata.ucar.edu/glimpse/gempak/4692

You likely won't have to change MAXGRIBSIZE in decode_grib.c
since that is the size of a bulletin that is read.

The other changes in gemprm.h and MCHPRM.* would be needed.
You would want to do a complete "make distclean"from $NAWIPS
to remove all files in $GEMLIB (they all heave to be recompiled for
the new array sizes).

I didn't find the product that interesting to change the defaults
in GEMPAK.

Steve Chiswell
Unidata User Support


>From: "Siffert, Andy" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200202071630.g17GUox03390

>
>I seem to be having problems creating a .gem file. The problem seems to be
>that the Grids are to large for my gempak. 
>
>dcgrib error:
>[asiffert@kcalxmb1 temp]$ /usr/local/nawips/bin/linux/dcgrib2 -m 100000
>p06i_2002012812f006.gem < p06i_ 2002012812f006.grib
>[32010] 020207/0757 [DC 3]  Starting up.
>[32010] 020207/0757 [DCGRIB -55] Grid too large 1121 x 881 [987601 > 400000]
>[32010] 020207/0757 [DC 5]  Normal termination.
>[32010] 020207/0757 [DC 2]  Number of bulletins read and processed: 0
>[32010] 020207/0757 [DC 6]  Shutting down.
>
>
>I've never had to recompile or change my gempak settings. So, I was
>wondering if you have ever had to do this.
>I think I have an idea how to do this, but I need some guidance.
>
>So, what I want to do is in change my: gemprm.h
>
>#define LLMXGD  ( ?????? )
>                                /* Max # grid points */
>#define LLMDGG  ( ?????? )
>                      
>          /* Max mem for intern grids */
>Change my MCHPRM.Linux
>        PARAMETER       ( LLMXGD = ??????? ) 
>C!                                              Max # grid points
>
>Change , 
>unidata/ldmbridge/dcgrib2/decode_grib.c  ->  MAXGRIBSIZE=?????
>
>
>So, my questions is this correct, that these are the three things I need to
>change. 
>If so, what should be my size if I want to view these files  (Grid too large
>1121 x 881 [987601 > 400000])
>
>#define LLMXGD  (  400000 )    *WHY IS this to small if I'm only doing a
>987601 type file.
>                                /* Max # grid points */
>#define LLMDGG  ( 2504000 )
>                                /* Max mem for intern grids */
>Current Settings
>
>
>How do I recompile all the above after I make the changes?
>
>Thanks for all your help.
>Can't wait to look at this data.
>Andy
>
>****************************************
>               Andy Siffert                  
>        Aquila Weather Desk           
>     Research and Development     
>  1100 Walnut Street, Suite 3300  
>      Kansas City, MO 64106         
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