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>To: <address@hidden> >From: =?iso-8859-1?Q?Peter_Gylling_J=F8rgensen?= <address@hidden> >Subject: Netcdf bug/feature: IEEE standard >Organization: Modelling group, Oceanography Section, Royal Danish >Administration of Navigation and Hydrography >Keywords: 200301291233.h0TCXB620368 Alpha IEEE subnormal subnormalized floats Hi Peter, > I have been working for a while to solve some problems about reading > netcdf files on our alpha servers. They have been producing core dumps > caused by floating exceptions when reading netcdf files produced on > our linux based production cluster. > > The reason is the handling of the IEEE standard descriping > subnormal/denormal floating point numbers. > > The solution is mentioned in the link below, but I must say, that it > is very difficult to find this solution, thus I will propose that you > read the attached text file and consider providing this text as a part > of the INSTALL.html file in the toplevel directory of the netCDF > package. > > http://www.unidata.ucar.edu/projects/coohl/mhonarc/MailArchives/netcdf/msg00176.html > > A link in your section about known problems would also be appriciated. > http://unidata.ucar.edu/packages/netcdf/known_problems.html Thanks for tracking this down and writing the very clear explanation of the problem. I've added a note to the INSTALL.html file as you suggested: http://www.unidata.ucar.edu/packages/netcdf/INSTALL.html#osf1 I also added an entry in the "Known Problems" document containing your explanation: http://www.unidata.ucar.edu/packages/netcdf/known_problems.html#alpha-ieee Please let me know if you see any changes that need to be made in either of these. > Otherwise your package (netcdf-3.5.1-beta10) was configured and > compiled/installed without any problems. Thanks. --Russ _____________________________________________________________________ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu