[netCDF #SPN-205342]: Netcdf with ifort

> Ward & Russ - thanks for the response. By the way I rather not trouble you
> given your schedule. May I please know why I cannot access the mailing
> lists ? If I can exchange views with other experienced NETCDF Fortran
> developers that would be completely adequate.

I think access to the netcdfgroup mailing list is working again.  Please try

   http://www.unidata.ucar.edu/mailing_lists/archives/netcdfgroup/index.html

and let us know if you still have problems accessing it.

> Russ - unfortunately that file is 157 mega bytes. Yes I can view it with
> ncdump all right. I can give you the location of the source files and how
> to build it(it is available on net) It does not dump the core file to disk.
> So therefore I cannot load it into gdb. Yes I can view other netcdf files
> without a coredump.
>
> Here is a sample of the error message I get -
> Segmentation fault (core dumped)
> *********************************************************
> * def_anomaly                                           *
> *********************************************************
> forrtl: severe (24): end-of-file during read, unit 10, file
> /home/aswin/potentialVorticity/data/inp/fort.10
> 

To reproduce and diagnose the problem, we need either a small example
file or a small program that demonstrates the problem. The error message
about a segmentation fault in a program external to the netCDF library is 
not sufficient.

Thanks.

--Russ

> address@hidden> wrote:
> 
> > Hello Ashwin,
> >
> > Are you able to load the generated core file into gdb? If so, that may
> > provide some information about what is crashing and where.
> >
> > Besides this, answering the following questions may help narrow down what
> > is going on:
> >
> > 1. Can you open other netcdf files without a core dump?
> > 2. Can you read this file with the `ncdump` command-line command, or other
> > netCDF-aware programs?
> >
> > It sounds like the file may be corrupt, but we should be able to figure
> > that out.  If the file is relatively small, can you provide a copy of it
> > for me to look at?
> >
> > -Ward
> >
> > Also, appending data to an existing netCDF file is possible. Adding data
> > to an existing variable requires that the variable have an "unlimited"
> > dimension, and that the data be added along that dimension. Appending new
> > metadata or additional new variables can be significantly more efficient
> > with a netCDF-4 file.
> >
> > --Russ
> >
> >
> >
> > > Hello ,
> > > I am getting core dumps when I am reading in a netcdf file
> > > using netcdf fortran 4.4.0. My compiler is ifort. Can you give me some
> > > clues to help me debug this problem ?
> > > When I turn on gdb and run it I get a message saying end of file reached.
> > >
> > > Regards,
> > > Ashwin.
> > >
> > >
> > > When I go to this site - I get 503 Service Temporarily available -
> > >
> > https://www.unidata.ucar.edu/mailing_lists/archives/netcdfgroup/2013/msg00357.html
> > >
> > > If I had an existing file and I have to append data to an existing NETCDF
> > > dataset is there a problem with doing that ?
> > >
> > > address@hidden> wrote:
> > >
> > > >
> > > > ashwinD12 .,
> > > >
> > > > Your Ticket has been received, and a Unidata staff member will review
> > it
> > > > and reply accordingly. Listed below are details of this new Ticket.
> > Please
> > > > make sure the Ticket ID remains in the Subject: line on all
> > correspondence
> > > > related to this Ticket.
> > > >
> > > >     Ticket ID: SPN-205342
> > > >     Subject: Netcdf with ifort
> > > >     Department: Support netCDF
> > > >     Priority: Normal
> > > >     Status: Open
> > > >
> > > >
> > > >
> > > > The NetCDF libraries are developed at the Unidata Program Center,
> > > > in Boulder, Colorado, funded primarily by the National Science
> > Foundation.
> > > >
> > > > All support requests are handled by the development team. No dedicated
> > > > support staff are funded at this time. For this reason we cannot
> > guarantee
> > > > response times, nor that we can resolve every support issue, although
> > we
> > > > do our best to respond within 72 hours.
> > > >
> > > > It is in the nature of support requests that the same question is asked
> > > > many
> > > > times. We urge you to search the support archives for material
> > relating to
> > > > your support request:
> > > >
> > > > http://www.unidata.ucar.edu/search.jsp?support&netcdf
> > > >
> > > > If you are having trouble building netCDF, please take a look at the
> > > > "Building NetCDF" page:
> > > >
> > > > http://www.unidata.ucar.edu/software/netcdf/docs/building.html
> > > >
> > > > or the (unfortunately somewhat out-of-date) NetCDF Build Troubleshooter
> > > > page:
> > > >
> > > > http://www.unidata.ucar.edu/software/netcdf/docs/troubleshoot.html
> > > >
> > > > Windows users should see the FAQ list:
> > > >
> > > >
> > http://www.unidata.ucar.edu/software/netcdf/docs/faq.html#windows_netcdf4_2
> > > >
> > > > Complete documentation (including a tutorial, and sample programs in C,
> > > > Fortran,
> > > > Java, and other programming languages) can be found on the netCDF
> > > > Documentation page:
> > > >
> > > > http://www.unidata.ucar.edu/software/netcdf/docs/
> > > > http://www.unidata.ucar.edu/software/netcdf/examples/programs/
> > > >
> > > > If you resolve your issue through one of these methods, please send a
> > > > reply to
> > > > this email, letting us know that you no longer need support. This will
> > help
> > > > us spend more time on netCDF development.
> > > >
> > > > Best regards,
> > > >
> > > > Unidata User Support
> > > >
> > > >
> > >
> > >
> >
> > Russ Rew                                         UCAR Unidata Program
> > address@hidden                      http://www.unidata.ucar.edu
> >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: SPN-205342
> > Department: Support netCDF
> > Priority: Normal
> > Status: Closed
> >
> >
> 
> 
Russ Rew                                         UCAR Unidata Program
address@hidden                      http://www.unidata.ucar.edu



Ticket Details
===================
Ticket ID: SPN-205342
Department: Support netCDF
Priority: Normal
Status: Closed