Re: Numeric Bindings to LAPACK on x64
Andrey Asadchev <[email protected]>
| Newsgroups | gmane.comp.lib.boost.ublas |
|---|---|
| Message-ID | <CAELg7XLRGdtHK1qLmoppYehox1ginGd8v2F2M6pBkyk0ZT2orQ@mail.gmail.com> |
On Thu, May 24, 2012 at 11:21 AM, Michael Baumgart <[email protected]> wrote: >>> >>> For now, I'm compiling with MSVC 10 and I get loads of warnings like the >>> following: >>> <pathtoboost>\boost/numeric/bindings/lapack/ilaenv.hpp(34) : warning >>> C4267: 'argument' : conversion from 'size_t' to 'int', possible loss of data >>> >>> This is quite clear to me, as all size members of ublas types are size_t >>> (=unsigned _int64), while the binding interface bases on int (32bit) types. >>> Although my code runs so far, I'm afraid to run into trouble sometime. >>> >>> Is there a way to correctly handle the x64 case with uBlas and the >>> numeric bindings? >>> >> >> You can't really other than getting ILP64 LAPACK. >> it will hurt you only if you specify lens/dims more than 2^31. > > Ok for the right LAPACK binaries. But still, due to the explicit use of > int types (and the implicit cast) in the bindings, the linking with the > correct binary (with 64bit size types) might fail. > > Wouldn't an adapted binding be necessary? Is this available or > considered somewhere? You are using old bindings Try the new ones: http://svn.boost.org/svn/boost/sandbox/numeric_bindings/ The link is very hard to find through Google. In case you use ILP64 LAPACK set BIND_FORTRAN_INTEGER_8 _______________________________________________ ublas mailing list [email protected] http://lists.boost.org/mailman/listinfo.cgi/ublas Sent to: [email protected]