[Wrf-users] Re: ungrib errors in WPS on Mac OS X with intel chips (Jiming Jin)

[Arnold Moene]

Dear Jiming Min,

Somewhere (can't recall where, I think a WRF forum) I found the solution 
to this problem. In the file WPS/ungrib/src/gribcode.F90 there is a 
#ifdef missing that handles byteswapping.
On line 422 there is a correct one (surrounding the call to swap4). But 
there is a second call to swap4 that does not have the correct #ifdef 
BYTESWAP. Just replace the #ifdef that is there by the #ifdef BYTESWAP. 
That does the trick.

Best regards,

Arnold Moene
> Hello Colleagues and Friends,
>
>    I have installed the newest version of WPS on a Mac Pro (OS X)  
> with Intel chips.  The compiler I use is the Intel ifort. However,  
> when I am running ungrib.exe with the WPS test data downloaded from  
> the WRF web site(avn_0508*), I get the following message:
>
> Copen: File = GRIBFILE.AAA
>
> Fortran Unit = 12
> UNIX File descriptor: 5
>
> End-of-record mark (7777) not found         0
> Sec0(1) =   115389 0
> End-of-record mark (7777) not found         0
> Sec0(1) =   115389 1
> End-of-record mark (7777) not found         0
> Sec0(1) =   115389 2
> End-of-record mark (7777) not found         0
> Sec0(1) =   115389 3
> End-of-record mark (7777) not found         0
> Sec0(1) =   115389 4
> ......................................................................
>
> *** Found more than 10 consecutive bad GRIB records
> *** Let's just stop now.
>
>
> Perhaps the analysis file should have been converted
> from COS-Blocked format?
> ----------------------------------
>
> It seems to me that the ungrib package is unable to correctly decode  
> the GRIB data. I also attach my configure.wps file with this email.  
> Could someone help me straight out the problem? Any suggestions are  
> also very welcome. Thanks!
>
> Jiming

-- 
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Arnold F. Moene                              tel: +31 (0)317 482604
Meteorology and Air Quality Group            fax: +31 (0)317 482811
Wageningen University                     e-mail: Arnold.Moene at wur.nl
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Wageningen
The Netherlands

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