Hi Francesco, Do you recommend that we build the next NetCDF from 4.1.1 or should we use the 4.1.3 from experimental as the base?
Regards Alastair On 2012-02-07 13:17, Francesco P. Lovergine wrote: > On Tue, Feb 07, 2012 at 09:28:00AM +0000, Alastair McKinstry wrote: >> On 2012-02-02 01:43, Steve M. Robbins wrote: >>> Hi, >>> >>> I'd like to contribute towards a solution for this. I'm forwarding to >>> debian-devel to get some others' ideas. >>> Naively, I don't understand why netcdf can't offer multiple variants, >>> just as hdf5 does. Or, at least, one package libnetcdf-mpi-dev that >>> links with the "default" MPI implementation. >>>> I am not involved in the netcdf. You should report a bug on this >>>> package. >>> I'm prepared to do so, but I'd first like to get agreement that >>> netcdf is where the problem lies. Netcdf maintainers, please >>> chime in! >>> >>> >>> I think we can no longer live in the status quo (see all the blockers >>> of #631019), so something has to give. Even if it is painful, perhaps >>> Debian could pioneer something and pass patches back to upstream? >>> >>> Thoughts? >>> >>> -Steve >>> >> As of now, I have several packages (eg ADIOS, CDO) that used to build >> against netcdf and libhdf5-mpi-dev >> that don't. Without fixes to netCDF (I appreciate what Francesco says >> about netcdf upstream >> not giving the libraries proper names), there needs to be a regression: >> either the packages >> build with netcdf but no MPI, or MPI but no netcdf. >> > The problem is the following: with latest update to hdf5, the chain of > dependencies changed, so that now libnetcdf6 depends on the pure serial > version of hdf5, while the previous one depended on serial or parallel: > > Version: 1:4.1.1-6+b1 > Depends: libc6 (>= 2.7), libcurl3-gnutls (>= 7.16.2), libgcc1 (>= 1:4.1.1), > libgfortran3 (>= 4.3), libhdf5-7 (>= 1.8.7), libquadmath0 (>= 4.6), > libstdc++6 (>= 4.4.0) > > Version: 1:4.1.1-6 > Depends: libc6 (>= 2.7), libcurl3-gnutls (>= 7.16.2-1), libgcc1 (>= 1:4.1.1), > libgfortran3 (>= 4.3), libhdf5-serial-1.8.4 | libhdf5-1.8.4, libquadmath0 (>= > 4.6), libstdc++6 (>= 4.4.0) > > So at least at packaging level, that should be fixed to follow the previous > criteria. > > That said, indeed NetCDF provides nc_create_par and nc_open_par in both serial > and parallel versions, but needs to be built with --enable-parallel to take > advantage of parallel I/O in HDF5, else it works in pure serial mode. > -- Alastair McKinstry , <alast...@sceal.ie> , <mckins...@debian.org> http://blog.sceal.ie Anyone who believes exponential growth can go on forever in a finite world is either a madman or an economist - Kenneth Boulter, Economist. -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4f328767.1060...@debian.org
