[Opengrads-devel] [Junk released by Allow List] Re: [Junk released by Allow List] Building GrADS v2 with new supplibs: first crack

[Jennifer A. <jm...@co...>]

On Feb 2, 2008, at 3:21 PM, Arlindo da Silva wrote:

> Jennifer/Brian et al,
>
> 1)  I have patched the supplibs sources to build with HDF v4.2r3  
> (just released). I'll be rebuilding and posting sources/binaries to  
> sf.net under version supplibs-2.0.1. For documentation on checking  
> out/building the supplibs check the wiki:
>
> http://opengrads.org/wiki/index.php?title=Supplemental_Libraries_% 
> 28Supplibs%29

> 2) I have obtained your original grads-2.0.a0 tar ball and updated  
> the build mechanism to work with the new supplibs. Please consult  
> the ChangeLog for a descriptions of the  mods I made. (see below).  
> Please check it out directly from our CVS repository:


Arlindo --
There is a bug in seekgb.c of the g2clib that causes it to fail to  
detect the end of a grib2 record if sizeof(g2int) != 4 (i.e. on 64- 
bit systems). I guess we should put the patch in the subblib src  
files we are redistributing (on your site and COLA's). This bug  
causes gribmap to fail to find any records -- pretty bad.

  # diff ./seekgb.c ~/Desktop/seekgb.c
39a40
 >       int hdr;
68,69c69,70
<             k4=fread(&end,sizeof(g2int),1,lugb);
<             if (k4 == 1 && end == 926365495) {      //GRIB message  
found
---
 >             k4=fread(&hdr,4,1,lugb);
 >             if (k4 == 1 && hdr == 926365495) {      //GRIB message  
found


>
>
> gacvs co -P -r GRADS2_DEV_BRANCH grads
>
> cd grads
> ./configure
> make
>
> Notice that gacvs is an alias for
>
> cvs -z3 -d:ext:da...@op...:/cvsroot/ 
> opengrads
>
> (replace "dasilva" with your own user id at sf.net). You also  
> checkoput anonymously from sf.net:
>
>    http://sourceforge.net/cvs/?group_id=161773
>
> 3) I also updated the test suite for working with v2; just type
>
> make check
>
> I also updated lats4d to work with grads v2. Of course, you can  
> only specify -format stream, sequential, stats or gs scripts to be  
> executed. Formats grib and coards cannot be specified because grads  
> v2 does not have LATS.
>
> I have some documentation about the test suite here:
>
> http://opengrads.org/wiki/index.php?title=PyTests:_GrADS_Test_Suite
>
>
> 4) Of the 70 tests, gradsv2 is failing 16. They are related to 2  
> issues:
>
> a) The "sdfopen model.hdf" is not quite working: it reports the  
> file as having 1 timestep instead of 5. I verified that the RH  
> binary Jennifer posted has exactly the same problem, so it does not  
> appear to be my build.
The code path for hdf in sdfopen is new. I will look at it and see  
what's going wrong. Where is model.hdf?

> b) When using "set gxout fvwrite" to write binary files the missing  
> value is not being written correctly, in either little-endian or  
> big-endian mode. Is this a bug or a feature (I haven't verified  
> whether v1.9 does the same)?
Can you be more specific about what 'not being written correctly'  
means? Can you give me a script segment that shows what it is doing  
wrong? Undef handling in v2 is entirely different than 1.9 -- it  
won't help to look back.

> Brian/Jennifer: I am submitting this to you as patches to v2 for  
> your review and adoption in v2 as you see fit.
I will put a priority on importing the build stuff.

--Jennifer

> If you do adopt these or your own mods for building with the new  
> supplibs and put out a new source tarball, I can help with "out of  
> the box" builds for distribution by COLA. I am not planning to  
> distributed this tag at the opengrads sf.net download area as it  
> does not yet have the hooks for developing/running opengrads  
> extensions.

> If you are interested, I can stop at COLA one of these mornings on  
> my way to work and do a quick walkthru of the test suite. Although  
> it is written in Python using PyUnit (a rip off of JUnit which you  
> may be familiar with from Java), you can write  all of your tests  
> as gs scripts. (However, I chose to write my tests in python). It  
> has been extremely useful for testing the binaries on the different  
> platforms. It only requires python v2.3 or later which is available  
> everywhere except for old servers.
>
> Pat: Let me know if this works with Fedora.
>
>   Cheers!
>
>        Arlindo
>
>
>
> ---------------------------------------------------------------------- 
> -----------------------
> GrADS ChangeLog
>
> 2008-01-31 <da...@op...>, Version GrADS 2.0.a0
>     * Imported Version 2.0.a0 sources from COLA into COLA vendor  
> branch.
>
> 2008-01-31 <da...@op...>, Version GrADS 2.0.a0-1
>     * This version temporarily placed under GRADS2_DEV_BRANCH
>     * Adapted build mechanism from v1.9.0-rc1 for v2.0.a0
>     * grads.h: no longer includes gasdf.h, and gasdf prototypes have
>     been moved into gasdf.h. This is important to avoid including
>     "netcdf.h" from NetCDF when building with NC-DAP (OPeNDAP
>     implementation of NetCDF).
>     * gagui.c, gsgui.c: replaced with v1.9.0-rc1 to cope with new
>     supplibs, also revised license terms to GPL 2
>     * gatypes.h: renamed Pixel->gaPixel to avoid conflict with new  
> supplibs.
>     * grads.c: changed main() to Main() for Win32; added main.c,  
> main_win32.c
>     * GNUmakefile: added for Win32
>     * w32_dist.csh: added for Win32
>     * pcx11e.[ch]: updated license to GPL
>     * gacfg.c: removed (c) 1997 Arlindo da Silva + old, unclear,  
> license terms
>
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> -- 
> Arlindo da Silva
> da...@al...
> ---------------------------------------------------------------------- 
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--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jm...@co...