Cpu Identity mismatch

only_human · 2012-05-11, 05:42

I'm trying out the Windows 8 Consumer Preview at the moment and I just started Prime95 for the first time from it and got this error.

Quote:

[Main thread May 10 22:33] Mersenne number primality test program version 26.6
[Main thread May 10 22:33] Optimizing for CPU architecture: Core 2, L2 cache size: 512 KB
[Comm thread May 10 22:33] Updating computer information on the server
[Main thread May 10 22:33] Starting worker.
[Work thread May 10 22:33] Worker starting
[Work thread May 10 22:33] Resuming trial factoring of M71689687 to 2^70
[Work thread May 10 22:33] Trial factoring M71689687 to 2^70 is 51.73% complete.
[Comm thread May 10 22:33] PrimeNet error 33: CPU identity mismatch
[Comm thread May 10 22:33] CPU identity mismatch: g=3e92e102fea07aa0f20eed7c0f1dca84 hg=36d4f286494963f7c8f13d4013beac7e wg=76a82477167c724a6c84e2c2467ed52e
[Comm thread May 10 22:33] Updating computer information on the server
[Comm thread May 10 22:33] Exchanging program options with server
[Comm thread May 10 22:33] Sending expected completion date for M71689687: May 14 2012
[Comm thread May 10 22:33] Sending expected completion date for M63179569: May 23 2012
[Comm thread May 10 22:33] Done communicating with server.

That's interesting because this is the same boxen that I have been using for quite a long time. This is a single threaded Celeron 420 1.6 Ghz with no virtualization. It is not a Core 2. Is there any information that you want to know?

Prime95 · 2012-05-11, 13:32

Your CPU identity is based on your hardware and Windows OS. Since you upgraded the OS prime95 was worried that you had copied the prime95 folder from a computer running Windows 7 to a new computer running Windows 8 and generated a new computer ID.

This shouldn't cause any problems. You can merge the two IDs by logging into mersenne.org and visiting the CPUs web page and checking some boxes.

only_human · 2012-05-11, 13:43

Ok, thank you. The mention of Core 2 threw me. For all I know it might have been saying that for years without my noticing. All my Prime95 work these days is anonymous anyway so I'm not concerned about merging credit.

2012-05-11, 13:43	#3
only_human "Gang aft agley" Sep 2002 2×1,877 Posts	Ok, thank you. The mention of Core 2 threw me. For all I know it might have been saying that for years without my noticing. All my Prime95 work these days is anonymous anyway so I'm not concerned about merging credit. Last fiddled with by only_human on 2012-05-11 at 13:58 Reason: s/IDs/credit

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2012-05-11, 13:32	#2
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 2×53×71 Posts	Your CPU identity is based on your hardware and Windows OS. Since you upgraded the OS prime95 was worried that you had copied the prime95 folder from a computer running Windows 7 to a new computer running Windows 8 and generated a new computer ID. This shouldn't cause any problems. You can merge the two IDs by logging into mersenne.org and visiting the CPUs web page and checking some boxes.