Question on speed

lpmurray · 2005-06-24, 00:39

I am running 2 instances of P95 on my duel processor, 1 is 34324687 which is running at .088 per iteration and 34645489 which is running at .102 per iteration. They are both getting 50% processor. is the latter using a larger fft which is causing it to run slower? Running 1 instance at a time, the times are .063, and .072. these are running on a 2.8mhz duel processor. The motherboard is using single channel ddr which is why the overall times are slow. I plan on changing the motherboard to a pc-deluxe dl which should give me a 25-35% boost.
THANKS LMURRAY

Prime95 · 2005-06-24, 02:54

Different FFT sizes? Very likely. Around 34,560,000 SSE2 machines start to use larger FFTs.

2005-06-24, 00:39	#1
lpmurray Sep 2002 89 Posts	Question on speed I am running 2 instances of P95 on my duel processor, 1 is 34324687 which is running at .088 per iteration and 34645489 which is running at .102 per iteration. They are both getting 50% processor. is the latter using a larger fft which is causing it to run slower? Running 1 instance at a time, the times are .063, and .072. these are running on a 2.8mhz duel processor. The motherboard is using single channel ddr which is why the overall times are slow. I plan on changing the motherboard to a pc-deluxe dl which should give me a 25-35% boost. THANKS LMURRAY

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2005-06-24, 02:54	#2
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 16546₈ Posts	Different FFT sizes? Very likely. Around 34,560,000 SSE2 machines start to use larger FFTs.