Re: Possible race condition?

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: Re: Possible race condition?
• From: yongtao yang <yongtao.yang@xxxxxxxxx>
• Date: Mon, 7 Mar 2005 15:55:16 +0100

On Mon, 07 Mar 2005 08:07:17 -0500, Ed Hill <ed@xxxxxxx> wrote:
> On Mon, 2005-03-07 at 13:00 +0100, yongtao yang wrote:
> > I know this is a very vague message and I might be looking at
> > something totally unirrelevant, just hope somebody has similar
> > experience or know a bit of possible cause.
> 
> Hi Yongtao,
> 
> I think this has been discussed on this list earlier, but to condense:
> 
>  1) the netCDF libs aren't thread-safe and
>  2) you're using OpenMP which is threads-based.
> 
> So take a close look at your code and make sure that you don't have two
> threads (or two MPI processes!) trying to simultaneously write to (or in
> any way modify) the same netCDF file.
> 
> Ed
> 
Hello, Edward

Thank you very much for the reply. The thread-unsafeness of netCDF is
a new information for me and I will check the my code for possible
simultanous access to the netCDF file.

Hopefully I will be able to fix he problem. Thanks again.

-- 
Yongtao Yang

email: yongtao.yang@xxxxxxxxx

• References:
  • Possible race condition?
    • From: yongtao yang