1) Message boards : Number crunching : How is CPU speed evaluated? (Message 437556) Posted 16 Oct 2006 by fmal[OTC] Post: This seems correct: the compiler could be the first reason to have diffrent results. I did not believe there would be such a difference!

2) Message boards : Number crunching : How is CPU speed evaluated? (Message 436977) Posted 15 Oct 2006 by fmal[OTC] Post: I'm not convinced yet: I run the same version of Boinc on two computers, one at home with P4 3,2GHx and the other is a much more expensive server Xeon 3,2 GHz. Both run on HT, (simulating a 2way cpu). If the less expensive P4 crunchs better, why a lot of people buy expensive servers? I run other general-purpose benchmarks and I see a real gain on Xeon, only Boinc says to run better on Pentium. Where is the problem?

3) Message boards : Number crunching : How is CPU speed evaluated? (Message 435493) Posted 13 Oct 2006 by fmal[OTC] Post: See this comparison between my two computers: COMPUTER #1 CPU type GenuineIntel Intel(R) Pentium(R) 4 CPU 3.20GHz Number of CPUs 2 Operating System Microsoft Windows XP Professional Edition, Service Pack 2, (05.01.2600.00) --- Measured floating point speed 1407.15 million ops/sec Measured integer speed 1698.5 million ops/sec COMPUTER #2 GenuineIntel Intel(R) Xeon(TM) CPU 3.20GHz Number of CPUs 2 Operating System Linux 2.6.11.4-21.13-smp --- Measured floating point speed 630.74 million ops/sec Measured integer speed 1176.8 million ops/sec How can Xeon's speed be half of a Pentium 4 with the same clock? Any suggestion?

 
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