Re: [BLAS bindings] help appreciated on using trmv and gbmv
Rutger ter Borg <[email protected]>
| Newsgroups | gmane.comp.lib.boost.ublas |
|---|---|
| Message-ID | <[email protected]> |
On 2012-10-07 22:50, Florent Teichteil wrote: >> >> OK, but for the moment, it would be wonderful if binding functions >> like trmv and gbmv work properly with dense matrices and triangular >> and banded adaptors. (Perhaps they work properly, but I'm misusing >> them, see my attached test files). >> >> Cheers >> Florent >> Hello Florent, you are aware that, by definition, upper and lower matrices do not have entries on the diagonal? In your test case, gemv takes those into account, but trmv will happily skip over them. That explains the difference in results. I haven't looked at the banded stuff yet, but, so far, no bugs in the bindings. Also, just fyi, the bindings also provide upper, as in bindings::blas::trmv(bindings::upper(M), R2); Cheers, Rutger _______________________________________________ ublas mailing list [email protected] http://lists.boost.org/mailman/listinfo.cgi/ublas Sent to: [email protected]