error - Please help

em99010pepe · 2004-12-01, 22:05

Quote:

[Wed Dec 01 20:09:33 2004]
Using Irrational Base DWT : Mersenne fftlen = 81920, Used fftlen = 81920
V1 = 3 ; Computing U0...done.
[Wed Dec 01 21:03:12 2004]
Iter: 649455/1501010, ERROR: SUM(INPUTS) != SUM(OUTPUTS), 257031810584.2415 != 6.341694988979537e+017
Possible hardware failure, consult the readme file.
Continuing from last save file.

Is that normal? The client (LLRP4) is still running. Need answer within two hours.

Carlos

em99010pepe · 2004-12-01, 22:38

I finished the current test:

Quote:

[Wed Dec 01 20:09:33 2004]
Using Irrational Base DWT : Mersenne fftlen = 81920, Used fftlen = 81920
V1 = 3 ; Computing U0...done.
[Wed Dec 01 21:03:12 2004]
Iter: 649455/1501010, ERROR: SUM(INPUTS) != SUM(OUTPUTS), 257031810584.2415 != 6.341694988979537e+017
Possible hardware failure, consult the readme file.
Continuing from last save file.
[Wed Dec 01 22:29:01 2004]
3*2^1501011-1 is not prime. Res64: 501FEBF5DEBF14C3 Time : 4848.491 sec.
Using Irrational Base DWT : Mersenne fftlen = 81920, Used fftlen = 81920
V1 = 3 ; Computing U0...done.

I'm going to run the test again under PRP3. Let's see what happens.

Carlos

paulunderwood · 2004-12-01, 23:55

This look like a hardware problem. Check your processor -- I have just vacuum cleaned the blades of one of my computer's heatsinks after I noticed a big drop in speed -- it is perfectly okay now. Your problem is probably due to overheating, but it might be some other hardware problem such as bad memory.

Are you overclocking?

segmtfault · 2004-12-02, 03:21

I double-checked the test on one of my machines, using LLRP4 v3.2 I got the following result :

Quote:

[Wed Dec 01 18:05:10 2004]
Using Irrational Base DWT : Mersenne fftlen = 81920, Used fftlen = 81920
V1 = 3 ; Computing U0...
[Wed Dec 01 19:05:15 2004]
3*2^1501011-1 is not prime. Res64: 501FEBF5DEBF14C3 Time : 3605.179 sec.

So it seems you got the right residue despite the error

But you should definitely check your hardware

em99010pepe · 2004-12-02, 06:47

The processor is not overclocked, it is a new computer, 2 months old.
I ran PRP3 all night without a problem. Here are the results:

Quote:

[Thu Dec 02 00:31:18 2004]
3*2^1501011-1 is not prime. RES64: AC6B4F7509429E6B. OLD64: 0541EE5F1BC7DB3E
[Thu Dec 02 02:30:25 2004]
3*2^1501044-1 is not prime. RES64: E5FDF38B19A1D3DC. OLD64: B1F9DAA14CE57B91
[Thu Dec 02 04:29:29 2004]
3*2^1501054-1 is not prime. RES64: A78BF638DF60FD4F. OLD64: F6A3E2AA9E22F7EB
[Thu Dec 02 06:28:35 2004]
3*2^1501080-1 is not prime. RES64: 89CC423F3EE4EB77. OLD64: 9D64C6BDBCAEC264

Now back to LLRP4.

Carlos

paulunderwood · 2004-12-02, 13:23

Your timings seem to be lengthy. Are you running any other processor intensive processes?

em99010pepe · 2004-12-02, 13:34

Quote:

Originally Posted by paulunderwood

Your timings seem to be lengthy. Are you running any other processor intensive processes?

No. I have an AMD 64.
Now the client is running without a problem. See below (LLRP4):

Quote:

[Thu Dec 02 08:32:42 2004]
3*2^1501091-1 is not prime. Res64: BD9AD04ED936030A Time : 6888.216 sec.
Using Irrational Base DWT : Mersenne fftlen = 81920, Used fftlen = 81920
V1 = 5 ; Computing U0...done.
[Thu Dec 02 10:23:06 2004]
3*2^1501094-1 is not prime. Res64: 1F803B87ED65B469 Time : 6624.420 sec.
Using Irrational Base DWT : Mersenne fftlen = 81920, Used fftlen = 81920
V1 = 3 ; Computing U0...done.
[Thu Dec 02 12:13:34 2004]
3*2^1501108-1 is not prime. Res64: 6FD78C13910D7F6E Time : 6627.414 sec.
Using Irrational Base DWT : Mersenne fftlen = 81920, Used fftlen = 81920
V1 = 9 ; Computing U0...done.

Carlos

paulunderwood · 2004-12-02, 13:46

Quote:

No. I have an AMD 64.

I guess that's normal, considering the GHz of an AMD 64. The AMD 64 is a real nice processor which rocks at most things, but in this game, 321 LLR'ing, high frequency P4's are tops.

Anyway, good luck with finding our next prime.

Kosmaj · 2004-12-02, 16:28

Quote:

Originally Posted by em99010pepe

Is that normal? The client (LLRP4) is still running. Need answer within two hours.
Carlos

Which LLR version exactly are you using?
Some LLR versions released in summer produced such false hardware errors,
and in some cases missed primes. Be sure to switch to the latest stable version of LLR-P4, either the one released at the beginninog of October,
or the latest one released on November 30. The former has been extensively tested and no bugs have been found. The latter appears to be faster specially for large n's but AFAIK no third party tests have been performed.

em99010pepe · 2004-12-02, 17:17

So far no problems. Thank you all.

Kosmaj,

I am using LLRP4 released on November 30.

Cheers,

Carlos

em99010pepe · 2004-12-11, 08:47

Quote:

[Fri Dec 10 21:38:31 2004]
Iter: 1171025/1501805, ERROR: SUM(INPUTS) != SUM(OUTPUTS), 2169307691269793 != 2163450011203430
Possible hardware failure, consult the readme file.
Continuing from last save file.

Now I know what's the problem here. It's all about java. I usually run DHEP project and it uses java. Sometimes speed crunching gets slower because of java. Something about 16bits/32 bits, probably I am saying a big mistake, I don't know! Then I get a java error. I am using IBM java sdk 1.4.0 windows version.
What I know is everytime this happens I change to LLRP4 and that hardware failure error occurs.

Today I found that a friend also has that java problem.
It just vanish by itself a few days after, or by rebooting the computer. Stupid thing!

Carlos

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2004-12-01, 23:55	#3
paulunderwood Sep 2002 Database er0rr 2⁴·7·37 Posts	This look like a hardware problem. Check your processor -- I have just vacuum cleaned the blades of one of my computer's heatsinks after I noticed a big drop in speed -- it is perfectly okay now. Your problem is probably due to overheating, but it might be some other hardware problem such as bad memory. Are you overclocking?

2004-12-02, 13:23	#6
paulunderwood Sep 2002 Database er0rr 2⁴·7·37 Posts	Your timings seem to be lengthy. Are you running any other processor intensive processes?

2004-12-02, 17:17	#10
em99010pepe Sep 2004 2·5·283 Posts	So far no problems. Thank you all. Kosmaj, I am using LLRP4 released on November 30. Cheers, Carlos