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Is anyone aware of what version of netcdf and/or hdf5 fixes this problem. It would help me to get installations updated if I can point to a specific version. Could it be the mpi library? On Tue, Feb 18, 2014 at 4:14 PM, Quincey Koziol <quincey@xxxxxxxxx> wrote: > Hi Jim, > I'm using the latest code from the HDF5 subversion repo, here: > > http://svn.hdfgroup.uiuc.edu/hdf5/branches/hdf5_1_8/ > > And the latest code from the netCDF-4 git repo, here: > > https://github.com/Unidata/netcdf-c > > I'm also using OpenMPI, v1.7.3. > > Quincey > > On Feb 18, 2014, at 2:04 PM, Jim Edwards <jedwards@xxxxxxxx> wrote: > > Hi Quincey, > > I still get the error after making the suggested changes. What versions > of hdf5 and netcdf are you using? > > Jim > > > > On Tue, Feb 18, 2014 at 7:41 AM, Quincey Koziol <quincey@xxxxxxxxx> wrote: > >> Hi Jim, >> I've tested your program on the latest version of HDF5 and the >> latest version of netCDF-4 and it's working fine with "mpirun -np 4 ./bug". >> I did have to tweak your program slightly to get it to compile, so maybe >> that's the issue you are having: >> >> #include <stdio.h> >> #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(); >> } >> >> Give that version a try a see if it works for you, >> Quincey >> >> >> > 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(); >> > } >> > >> >> _______________________________________________ >> netcdfgroup mailing list >> netcdfgroup@xxxxxxxxxxxxxxxx >> For list information or to unsubscribe, visit: >> http://www.unidata.ucar.edu/mailing_lists/ >> > > > > -- > 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
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