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drummers-lowrise
11) Message boards : Problems and Help : Ubuntu 10.10 64bit AMD Phenom II 6 core trouble with some projects (Message 34607)
Posted 3827 days ago by Bent Vangli
I do believe I have verified that all the Sieve based tasks seem to run just fine. But as this has been an obcesion for me ;-) , I will try to run one unit of every project available on PrimeGrid and se what happens.

CPU temperature is about 40 degrees Celsius (Water cooled), northbridge about 48-49 deegress and none of the disks are above 38-39 degrees and I have 16 GByte matched RAM.

By the way, YoYo projects runs just fine.

Bent :-)
12) Message boards : Problems and Help : Ubuntu 10.10 64bit AMD Phenom II 6 core trouble with some projects (Message 34597)
Posted 3827 days ago by Bent Vangli
Hi

More and more I look into this. more certain I become that this is a systematic error, not a termal, overclocking or memory problem.

Take a look at: http://www.primegrid.com/workunit.php?wuid=172218343

Runtime om my computer is: 40,644.16 CPU seconds

Output:
Stderr output

<core_client_version>6.10.58</core_client_version>
<![CDATA[
<stderr_txt>
BOINC LLR 6.03 wrapper: starting
Unrecognized XML in parse_init_data_file: hostid
Skipping: 186828
Skipping: /hostid
Unrecognized XML in parse_init_data_file: starting_elapsed_time
Skipping: 0.000000
Skipping: /starting_elapsed_time
FFT length: 384K
All done!
called boinc_finish

</stderr_txt>
]]>


My wingman has a runtime of: 58,296.29 CPU seconds

and the output:

<core_client_version>6.10.58</core_client_version>
<![CDATA[
<stderr_txt>
BOINC LLR 6.03 wrapper: starting

Major OS version: 6; Minor OS version: 1
FFT length: 384K
All done!
03:34:15 (4028): called boinc_finish

</stderr_txt>
]]>

Can anyone tell me what is going on? Should I look into the BOINC software or fiddle with the new sllr 3.8.5 version?

Best regards
Bent
and strangely enough still an optimist :-))
13) Message boards : Problems and Help : Ubuntu 10.10 64bit AMD Phenom II 6 core trouble with some projects (Message 34576)
Posted 3828 days ago by Bent Vangli
I have found that PrimeGrid uses sllr version 3.8.4. A newer version (3.8.5) exists with he following bugfixes. I have not yet been able to test this new version, but hope I find a trick to use it.

1) Main features :

LLR is a primality proving program for numbers of the form N = k*b^n +/- 1,
(k < b^n), or numbers which can be rewritten in this form, like
Gaussian-Mersenne norms.
It can also do strong and efficient PRP tests on more general k*b^n+c forms,
on Wagstaff numbers (2^p+1)/3, repunits (10^p-1)/9 and generalized repunits
(b^p-1)/(b-1), b!=2.

This version uses the most recent release (26.5) of George Woltman's Gwnum
library, to do fast multiplications and squarings of large integers modulo N.

Since version 25.11, gwnum library is no longer restricted to base two for
efficient computing modulo k*b^n+c numbers (but SSE2 is required if b != 2),
and LLR greatly takes advantage of this improvement.

LLR can run on all machines where gwnum code can run, so, on all Intel x86
compatible machines.

- Two bugs have been fixed since previous 3.8.4 version :

- ErrorCheck=1 was ignored in command line, due to a bug in user interface.

- Base Two CC chains processing was incorrect.

- The option -oNoSaveFile=1 has been added at the request of an user.
Indeed, if it is set, any test is restarted at beginning if stopped...
14) Message boards : Problems and Help : Ubuntu 10.10 64bit AMD Phenom II 6 core trouble with some projects (Message 34569)
Posted 3828 days ago by Bent Vangli
Every setting is now default.

PPS LLR v6.09 runs fine, at least those 3 I have tested with. But this project has also run smooth before. Each unit are rather small and finish in about 10-13 minutes.

321 Prime Search (LLR) v6.09 hasn't yet validated. However one co-pilot has finished the same work unit and we are both marked inconclusive. I do suspect that I am the errorneous :-(

I also runs three projects on YoYo and they all seems to finish perfect.

I have three theories:

1) I have a real bug in my CPU. Then I need to pinpoint it for complaining to manufacturer.
2) BIOS/Chipset bug.
3) Software error (compilation?). Not likely, however, this may be a good start because I need the source code anyway to figure out if this is a CPU, BIOS or Chipset bug.

Any suggestions will be helpful. At first I will flash my BIOS to the very last version (Gigabyte mainboard: GA-890GPA-UD3H Rev 2.1.)

With best regards

Bent
15) Message boards : Problems and Help : Ubuntu 10.10 64bit AMD Phenom II 6 core trouble with some projects (Message 34424)
Posted 3833 days ago by Bent Vangli
I did heavy memory testing for several hours and no errors there. Then I checked every setting in BIOS and used default or automatic everywhere, and as a last precaution I installed Ubuntu 10.10 64 bit from scratch. Lucky enough this computer is used solely for BOINC crunching. :-)

Now I am awating the validating result for a Primegrid unit, which finished earlier today.

Best regards Bent
16) Message boards : Problems and Help : Ubuntu 10.10 64bit AMD Phenom II 6 core trouble with some projects (Message 34383)
Posted 3834 days ago by Bent Vangli
32 bit seems to be installed. Primegridapplication is i686 and the 32 bit GNU C library libc-i386 is installed. Does those applications need other 32 bit librarys installed like multiprecision libgmp3?

Tomorrow I will carefully go through my BIOS settings and run intensive memory tests. I will even reinstall hole Ubuntu to verify that I have no errors there.

I will then report back. If I find something spesific, it may help others.

Best regards Bent
17) Message boards : Problems and Help : Ubuntu 10.10 64bit AMD Phenom II 6 core trouble with some projects (Message 34378)
Posted 3834 days ago by Bent Vangli
Hi

I have a strange problem wiith a new computer. It is running Ubuntu 10.10 on a AMD Phenom II 1100T 6 core and 16 GByte of RAM. The following projects seems to run ok and finished without error messages:

321 Prime Search (LLR)
The Riesel Problem (LLR)
Seventeen or Bust

However they do not validate. Other projects seems to run fine, and I have not seen any problems on other BOINC project sites.

I tried to delete all programs and reinstall, but it doesn't help.

Machine: http://www.primegrid.com/show_host_detail.php?hostid=186828

Example workunit (The Riesel Problem (LLR)) not validating:

http://www.primegrid.com/workunit.php?wuid=170748990

Boinc version: 6.10.58
Application version: BOINC LLR 6.03 wrapper (But application is named ..._llr_wrapper_6.09_i686....)

Has anyone any clue?

Best regards Bent
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