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Re: Serious SPEC CPU 2006 FP performance regressions on IA32 and x86-64
On Fri, Dec 08, 2006 at 01:02:27PM -0600, Menezes, Evandro wrote:
> HJ,
>
> I'll run the three worst offenders below and get back to y'all.
>
> The full results will take longer.
Hi Evandro,
I also saw similar issues on x86-64 with -O2 -ffast-math:
gcc-4.2 rev 116820 gcc 4.3 rev 119497
410.bwaves 10.9 10.6 -2.75229%
416.gamess 15.0 15.6 4%
433.milc 13.0 12.9 -0.769231%
434.zeusmp 13.9 13.9 0%
435.gromacs 8.41 8.40 -0.118906%
436.cactusADM 10.3 10.2 -0.970874%
437.leslie3d 10.6 7.55 -28.7736%
444.namd 13.6 13.6 0%
447.dealII 23.7 23.8 0.421941%
450.soplex 15.5 15.4 -0.645161%
453.povray 17.7 18.7 5.64972%
454.calculix 6.96 7.04 1.14943%
459.GemsFDTD 12.3 9.87 -19.7561%
465.tonto 12.6 12.4 -1.5873%
470.lbm 15.9 16.0 0.628931%
481.wrf 10.3 9.97 -3.20388%
482.sphinx3 18.5 18.4 -0.540541%
Est. SPECfp_base2006 12.9 12.5 -3.10078%
Did you see it on AMD?
H.J.