On Thu, 1 Dec 2016 16:15:50 +0100 Roger <rogfa...@free.fr> wrote:
> On Sun, 13 Nov 2016 18:04:28 +0200 Graham Inggs <gin...@debian.org> wrote:
> > Control: reopen -1
> >
> > I've just checked eigen3 3.3.0-1 on plummer.debian.org, and it still outputs
> >
> > forceMatrix*axisMatrix: -1 0 0
> > 0 -2 0
> > 0 0 -3
> >
> >
> I have checked with current dev. tree and problem remains
> I have tried compiler g++-4.9 and g++-5 and g++-6 and all are providing
> same error on ppc64le
> On x86_64 using g++-5 there is no error.
>
>
Digging through the code, I found the difference
src/Core/functors/BinaryFunctors.h:89
{ return internal::pmul(a,b); }
on x86_64 it calls at line 192
extern __inline __m128 __attribute__((__gnu_inline__, __always_inline__,
__artificial__)) _mm_mul_ps (__m128 __A, __m128 __B)
│ {
return (__m128) ((__v4sf)__A *
(__v4sf)__B);
}
when on ppc64le pmul() calls
/usr/include/eigen3/Eigen/src/Core/arch/AltiVec/PacketMath.h:361
return vec_madd(a,b, p4f_ZERO);
so I suspect there is something there
--
__________________________________________________________________________
thf - Thierry Fauck - tfa...@free.fr>
/pubkey: 4096R/FCC181CE/
/fingerprint: 5CCF 6B82 DE4E E72A A40B B63E A153 BF4F FCC1 81CE/
--
debian-science-maintainers mailing list
debian-science-maintainers@lists.alioth.debian.org
http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/debian-science-maintainers
