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20010314: Solaris 2.6 large-file support (was: exit code ...)

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  • Subject: 20010314: Solaris 2.6 large-file support (was: exit code ...)
  • Date: Wed, 14 Mar 2001 14:19:35 -0700
Hugh,

A netCDF library can be built that supports large-files under Solaris
2.6.  The trick is to ensure that the environment variables CFLAGS,
LDFLAGS, and LIBS contain the necessary specifications before executing
the configure script.  For example:

    CFLAGS="-O `getconf LFS_CFLAGS`"
    LDFLAGS=`getconf LFS_LDFLAGS`
    LIBS=`getconf LFS_LIBS`

If you try to build a large-file compatible netCDF library, then be sure
to first execute the command "make distclean" in the top-level netCDF
source directory.

The above won't work under Solaris 2.6 or 2.8 because the "off_t" type 
was changed to be non-standard-conforming.

Regards,
Steve Emmerson   <http://www.unidata.ucar.edu>

-------- Original Message
>Date: Wed, 14 Mar 2001 15:30:14 -0500
>From: Hugh Ellis <address@hidden>
>Organization: Johns Hopkins University
>To: address@hidden
>Subject: Thanks
>Keywords: 200103141703.f2EH3KL02469
>
> Thanks for the quick and helpful response. I think I found what the problem
> might be. The output file in question has size 2,147,483,032 bytes when
> CCTM crashes. This is just at the 2Gb limit (2,147,483,648) which, for
> Solaris 2.6, means problems (we've run into this before, trying to generate
> multi-day MM5 simulations). There exists a "large-file" option for Solaris
> 2.6, but it's sort of haphazard - at least as far as I can figure out. One
> can have some compiled model components large-file-aware, and others not,
> which is a real pain.
> 
> Off-hand, is there any explicit provision within netCDF that may enable or
> prohibit large-file processing? My guess is no - this is strictly a Solaris
> problem.   
> 
> Thanks again,
> 
> Hugh
> 
> FYI - We were pretty much forced to use Solaris 2.6 as part of adopting the
> Models3 framework (or so we thought). That has, unfortunately, proven to be
> a very troublesome constraint.    
> 
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> ##    Hugh Ellis                                               ##
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