Re: [eigen] problem with MKL bindings for dense Eigen |

[ Thread Index | Date Index | More lists.tuxfamily.org/eigen Archives ]

*To*: eigen@xxxxxxxxxxxxxxxxxxx*Subject*: Re: [eigen] problem with MKL bindings for dense Eigen*From*: Peter <list@xxxxxxxxxxxxxxxxx>*Date*: Tue, 10 Apr 2018 10:11:56 +0200

Dear Gael, Am 10.04.2018 um 09:09 schrieb Gael Guennebaud: > > interesting, so that's not related to the diagonalization algorithm. If you suspect FMA, then compile with -mfma to let Eigen use it for its BLAS-like routines. > Interesting, it does make a difference. I thought that it is sufficient to use -march=native . The Eigen run without MKL is definitely more accurate when compiling '-mfma' compared to the run without. Comparing the -mfma version with the MKL run, MKL is slightly more accurate in the first half of the run, but in the long run the Eigen version without MKL but with -mfma is more accurate, which is actually the more important regime for me, as I can improve on the first by increasing a parameter (leading to more CPU time), but I can't avoid the second. I'll look into tiḿings later. Best regards, Peter

**References**:**[eigen] problem with MKL bindings for dense Eigen***From:*Peter

**Re: [eigen] problem with MKL bindings for dense Eigen***From:*Gael Guennebaud

**Re: [eigen] problem with MKL bindings for dense Eigen***From:*Peter

**Re: [eigen] problem with MKL bindings for dense Eigen***From:*Gael Guennebaud

**Re: [eigen] problem with MKL bindings for dense Eigen***From:*Peter

**Re: [eigen] problem with MKL bindings for dense Eigen***From:*Gael Guennebaud

**Re: [eigen] problem with MKL bindings for dense Eigen***From:*Peter

**Re: [eigen] problem with MKL bindings for dense Eigen***From:*Gael Guennebaud

**Re: [eigen] problem with MKL bindings for dense Eigen***From:*Peter

**Re: [eigen] problem with MKL bindings for dense Eigen***From:*Gael Guennebaud

**Messages sorted by:**[ date | thread ]- Prev by Date:
**Re: [eigen] problem with MKL bindings for dense Eigen** - Next by Date:
**RE: [eigen] Intel (R) MKL IE SpBLAS support in Eigen** - Previous by thread:
**Re: [eigen] problem with MKL bindings for dense Eigen** - Next by thread:
**[eigen] Certification**

Mail converted by MHonArc 2.6.19+ | http://listengine.tuxfamily.org/ |