AnsweredAssumed Answered

ACML 5.1.0 or ACML 4.4.0?

Question asked by nervi on Mar 27, 2012
Latest reply on Mar 28, 2012 by nervi

Hello,

I'm compiling quantum chemical number-crunching applications on a linux machine with 4 x Opteron 6168, using gfortran 4.6.2.

I'm wondering which ACML version is best for this family (10) of processors: acml 4.4.0 reports "optimized for amd fam 10", whereas 5.1.0 reports "optimized for amd fam 15". Since, as far as I undestood, some vectors instructions are available under family 15 (Bulldozer), but not under family 10 (Barcelona) I'm wondering whether 5.1.0 under opteron 6168 uses fast vectorized algebra or not...

 

Thanks,

  Carlo

Outcomes