On Tue, 2010-07-20 at 18:25 +0200, Paul Zimmermann wrote: > > I'm pleased to announce that AMD (1) donated two 12-cores Magny-Cours > > processors running at 1.5 GHz... > > /proc/cpuinfo says only 800Mhz, as says GMP's speed: > > zimme...@gcc10:~/gmp-5.0.1/tune$ ./speed -s 1000000 mpn_mul > overhead 0.000000008 secs, precision 10000 units of 1.25e-09 secs, CPU freq > 800.00 MHz > mpn_mul > 1000000 1.432090000 > > Also the web page says "2x12x1.9 GHz". Which one is correct?
I fixed the wiki, the correct frequency is 1.5 GHz as described in the announce email. The processors are "AMD Engineering Sample" with min frequency at 800 MHz and max frequency at 1.5 GHz with many intermediate frequencies: gcc10:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 1500000 1200000 1000000 900000 800000 This processor model is not available for sale. Sincerely, Laurent PS: a small experiment: gcc10:~# grep MHz /proc/cpuinfo cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 gcc10:~# md5sum /dev/zero & [1] 27631 gcc10:~# grep MHz /proc/cpuinfo cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 1500.000 <======== md5sum running here cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 900.000 <========= some other process cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 cpu MHz : 800.000 gcc10:~# kill %1 gcc10:~# [1]+ Terminated md5sum /dev/zero _______________________________________________ Gcc-cfarm-users mailing list Gcc-cfarm-users@gna.org https://mail.gna.org/listinfo/gcc-cfarm-users
