Re: [netcdfgroup] bug in nc_open_par?

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: Re: [netcdfgroup] bug in nc_open_par?
• From: Jim Edwards <jedwards@xxxxxxxx>
• Date: Wed, 12 Feb 2014 10:02:09 -0700

A little more info:   If I go ahead and define a variable and write it to
the file, I still get the assert error when I try to reopen it.


On Wed, Feb 12, 2014 at 9:48 AM, Jim Edwards <jedwards@xxxxxxxx> wrote:

> I have a very simple unit test that is failing when I try to use netcdf4
> parallel.   The test creates a file, calls enddef, closes the file, then
> trys to reopen it.   Using netcdf 4.3.0 built with hdf5 1.8.11 I am getting
> an assert error when I run this test,
>    3:testnetcdf4: nc4file.c:2858: NC4_open: Assertion `0' failed.
>    0:testnetcdf4: nc4file.c:2858: NC4_open: Assertion `0' failed.
>    1:testnetcdf4: nc4file.c:2858: NC4_open: Assertion `0' failed.
>    2:testnetcdf4: nc4file.c:2858: NC4_open: Assertion `0' failed.
>
> The same test written in F90 instead of C passes.
>
> #include <netcdf.h>
> #include <mpi.h>
> #include <netcdf_par.h>
>
> int main( int *argc, char ***argv)
> {
>   int mype, npe;
>   int fh, ierr;
>   MPI_Init(argc,argv);
>   MPI_Comm_size(MPI_COMM_WORLD, &npe);
>   MPI_Comm_rank(MPI_COMM_WORLD, &mype);
>
>   ierr = nc_create_par("try.nc",NC_MPIIO, MPI_COMM_WORLD, MPI_INFO_NULL,
> &fh);
>   printf("%d %d\n",__LINE__,ierr);
>   ierr = nc_enddef(fh);
>   printf("%d %d\n",__LINE__,ierr);
>   ierr = nc_close(fh);
>   printf("%d %d\n",__LINE__,ierr);
>
>   ierr = nc_open_par("try.nc",NC_MPIIO, MPI_COMM_WORLD, MPI_INFO_NULL,
> &fh);
>   printf("%d %d\n",__LINE__,ierr);
>   ierr = nc_close(fh);
>   printf("%d %d\n",__LINE__,ierr);
>
>   MPI_Finalize();
> }
>
>
>
>
> --
> Jim Edwards
>
> CESM Software Engineering Group
> National Center for Atmospheric Research
> Boulder, CO
> 303-497-1842
>



-- 
Jim Edwards

CESM Software Engineering Group
National Center for Atmospheric Research
Boulder, CO
303-497-1842

• References:
  • [netcdfgroup] bug in nc_open_par?
    • From: Jim Edwards