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1) Message boards : Number crunching : 2018 Mega Primes (Message 119998)
Posted 4 hours ago by Profile Michael GoetzProject donor

We've got a ways to go to reach the record for August. Last year, we found 9 mega primes this month.


Michael would you like us to concentrate on the lower Mega's for the rest of the month (group effort), in an attempt to match or beat the record ......... or is that cheating? :)


It's not cheating, no, but as always my response is "do what you want to do."

My personal preference is to go for the larger numbers.

It should also be noted that in October and November we probably won't set or tie the record either. The record in both of those months is 8 mega primes.

2) Message boards : Generalized Fermat Prime Search : GFN Prime Discoveries (Message 119994)
Posted 6 hours ago by Profile Michael GoetzProject donor
We've found another n=15 (32768) prime!

On 14 Aug 2018 16:44:30, the 261,748 digit prime 97249732^32768+1 was found by Jordan Romaidis using the OCL2 (combined) app.

The double checker of this task was Mark on 14 Aug 2018 22:53:34 using the OCL2 (combined) app.

Congratulations!
3) Message boards : Number crunching : Solar Eclipse Challenge (Message 119992)
Posted 6 hours ago by Profile Michael GoetzProject donor
Challenge Cleanup:
Aug-13: Solar Eclipse: 55801 tasks outstanding; 44514 affecting individual (293) scoring positions; 23540 affecting team (68) scoring positions.
Aug-14: Solar Eclipse: 25191 tasks outstanding; 18643 affecting individual (278) scoring positions; 7467 affecting team (40) scoring positions.
Aug-15: Solar Eclipse: 18195 tasks outstanding; 12107 affecting individual (256) scoring positions; 1357 affecting team (29) scoring positions.
4) Message boards : Number crunching : 2018 Mega Primes (Message 119990)
Posted 12 hours ago by Profile Michael GoetzProject donor
#259 is an SR5.
5) Message boards : General discussion : Task Monitor (Message 119986)
Posted 23 hours ago by Profile Michael GoetzProject donor
Have you considered using RPCs to the BOINC manager instead of reading the data files? (i.e., the same method used by the BOINC Manager and by BOINC Tasks.)

Advantages:
1) Possibly less likely to be affected by changes in future version of BOINC.
2) You can monitor multiple computers simultaneously.
3) No chance of breaking BOINC by accidently having an inadvertent lock on a file that BOINC needs to overwrite.

Disadvantages:
1) You may be limited to a smaller subset of data.
6) Message boards : Number crunching : Solar Eclipse Challenge (Message 119979)
Posted 1 day ago by Profile Michael GoetzProject donor


Solar Eclipse:
Aug-13: Solar Eclipse: 55801 tasks outstanding; 44514 affecting individual (293) scoring positions; 23540 affecting team (68) scoring positions.
Aug-14: Solar Eclipse: 25191 tasks outstanding; 18643 affecting individual (278) scoring positions; 7467 affecting team (40) scoring positions.


Still crunching here for the cleanup.


Please understand that the majority of the cleanup (and, at this moment, "majority" means exactly 100%) involves waiting for tasks that have been sent to computers to either be completed or to time out. The tasks your computer is getting right now are not cleanup tasks. Run PPS-LLR or not, as you desire. It won't affect the cleanup either way.
7) Message boards : Sieving : Bad n value (Message 119975)
Posted 1 day ago by Profile Michael GoetzProject donor
Must be an older version of the program with different n limits. Just running the program without any parameter will print the help. What does it say in terms of supported n ?

No, it's a OpenCL version which based on 'final' codebase, and code is trivial.
int n = atoi(argv[1]); if(!isnumeric(argv[1]) || (n < 15) || (n > 24)) { printf("Bad n value %s\n", argv[1]); usage_exit(); }

Executable is statically linked so it could not be problem with MSVC runtime libraries.

I have now idea what could be wrong on this particular PC.


I do have an idea, but it's a long shot. Complete guess.

The user's account says he's from Israel. Presumably the computer is set up to work in Hebrew. Perhaps that's causing some sort of character set encoding problem where "17" is encoded in some way other than 0x3137? If that's happening, it would look on the screen like "17" but the atoi() and/or isnumeric() functions/macros might not work correctly, depending on the exact libraries it was linked with.

Just a thought. It's the only thing even vaguely plausible I can think of to explain this behavior.
8) Message boards : Number crunching : Solar Eclipse Challenge (Message 119974)
Posted 1 day ago by Profile Michael GoetzProject donor


Solar Eclipse:
Aug-13: Solar Eclipse: 55801 tasks outstanding; 44514 affecting individual (293) scoring positions; 23540 affecting team (68) scoring positions.
Aug-14: Solar Eclipse: 25191 tasks outstanding; 18643 affecting individual (278) scoring positions; 7467 affecting team (40) scoring positions.
9) Message boards : Number crunching : Solar Eclipse Challenge (Message 119953)
Posted 1 day ago by Profile Michael GoetzProject donor
The cleanup begins!

Solar Eclipse:
Aug-13: Solar Eclipse: 55801 tasks outstanding; 44514 affecting individual (293) scoring positions; 23540 affecting team (68) scoring positions.
10) Message boards : Number crunching : Solar Eclipse Challenge (Message 119949)
Posted 1 day ago by Profile Michael GoetzProject donor
Final results!


Challenge: Solar Eclipse
App: 10 (PPS-LLR)
(As of 2018-08-13 18:00:23 UTC)

521654 tasks have been sent out. [CPU/GPU/anonymous_platform: 520905 (100%) / 0 (0%) / 749 (0%)]

Of those tasks that have been sent out:

24374 (5%) came back with some kind of an error. [24374 (5%) / 0 (0%) / 0 (0%)]
437399 (84%) have returned a successful result. [436652 (84%) / 0 (0%) / 747 (0%)]
59008 (11%) are still in progress. [59004 (11%) / 0 (0%) / 2 (0%)]

Of the tasks that have been returned successfully:

56174 (13%) are pending validation. [56077 (13%) / 0 (0%) / 97 (0%)]
380860 (87%) have been successfully validated. [380210 (87%) / 0 (0%) / 650 (0%)]
279 (0%) were invalid. [279 (0%) / 0 (0%) / 0 (0%)]
86 (0%) are inconclusive. [86 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is n=2636035. The leading edge was at n=2616900 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 0.73% as much as it had prior to the challenge!


9 PPS primes were found during the challenge. All were challenge tasks.


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