Posts by Luigi R.
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1) Message boards : News : base R67 Megaprime (Message 8991)
Posted 7 Aug 2023 by Luigi R.
Well done, Doug!
2) Message boards : News : base S171 Megaprime (Message 8872)
Posted 15 May 2023 by Luigi R.
Congratz @Skillz!
3) Message boards : News : base R634 Megaprime (Message 8868)
Posted 13 May 2023 by Luigi R.
Good one, congratz @Prescott!
4) Message boards : Number crunching : Sierpinski / Riesel Base - long3 v0.27 - after 20hours and 90% back to 0 % ?? (Message 8863)
Posted 11 May 2023 by Luigi R.
On Linux *buntu you could try this:


top
to get llr2 process id

Output:
1907473 boinc 39 19 95932 63068 3604 R 96,0 0,8 32:32.78 llr2_64
e.g. your $PID is 1907473.


Then
sudo strace -e trace=write -s 128 -p 1907473
to attach your process and trace writes.

Output:
strace: Process 1907473 attached
a few moments later...
write(1, "74*1010^195186-1, bit: 145465 / 195186 [74.52%], 134178 checked", 63) = 63 write(1, ". Time per bit: ", 17) = 17 write(1, "13.266 ms.", 10) = 10 write(1, "\r", 1) = 1



And don't forget
Ctrl+C
to detach.

Output:
^Cstrace: Process 1907473 detached
5) Message boards : News : base R532 Megaprime / proven (Message 8798)
Posted 17 Apr 2023 by Luigi R.
Double congratz! ;)
6) Message boards : News : base R268 Megaprime (Message 8433)
Posted 1 Nov 2022 by Luigi R.
Congratz!
7) Message boards : News : New badges - higher levels (Message 7776)
Posted 21 Jul 2021 by Luigi R.
Nice, thanks!

Just a little correction.
Maybe it should be 500M, 1G, 2G...
because we have Giga after Mega, not Tera. ;)
8) Message boards : Number crunching : WU keeps running after reaching 100% (Message 7232)
Posted 11 Jan 2021 by Luigi R.
I have never had a neverending task, maybe something is blocking your results file.

It's not my computer to have never ending tasks. I've got (and aborted) resends. I was the wingman.
Those resends are useless imho.
9) Message boards : Number crunching : WU keeps running after reaching 100% (Message 7230)
Posted 11 Jan 2021 by Luigi R.
It's still happening.


@rebirther: maybe you should avoid to resend these tasks if you are not already doing so. I aborted 45 tasks from my work queue. We have a residue and doublechecking is not our purpose... so it's useless to crunch them again.

I link them here so you can copy residues.
28686860, 28688798, 28685897, 28689205, 28686861, 28685584, 28687739, 28687993, 28688572, 28685593, 28685826, 28688283, 28687983, 28688262, 28688971, 28688241, 28688902, 28687770, 28688223, 28688294, 28685528, 28688293, 28687125, 28685519, 28688222, 28685893, 28688295, 28688299, 28687831, 28688147, 28688472, 28688340, 28688510, 28688235, 28688548, 28688274, 28688377, 28687850, 28688246, 28687838, 28687968, 28686146, 28687155, 28687078, 28686807

If you can't fix that, I could try to implement something to retrieve residues of this kind of errored tasks. It would mean to scrape thousands of html pages though. Let me know.
10) Message boards : News : New work for TF added (Message 6571)
Posted 8 Jun 2020 by Luigi R.
@bluestang

Anyway you can copy your results from boinc directories before they get uploaded to the project server. Not very exciting though because those factors are not rare numbers. Remarkable numbers are tracked by admins.
11) Message boards : Number crunching : Trial Factoring (Message 6554)
Posted 4 Jun 2020 by Luigi R.
If we can maintain this firepower, going all the way to 74 bit by the end of the year is indeed feasible and going all the way to 76 bit next year is feasible. With that kind of work being completed at the moment, it is best to go like Rebirther prefers and go breadth first - that will give those with slow GPUs a chance to adapt to the near future, where everything with a factor below 75 bit is cleared.

Don't forget that hardware improves and better GPUs will come here. ;)
12) Message boards : Number crunching : Trial Factoring (Message 6329)
Posted 21 Apr 2020 by Luigi R.
Collatz is the worst example. Making credit like collatz will attract all the point whores and cheaters.

Ahaha! +1


Collatz is inflated.

by a factor of 1.527 - this is roughly what I'd expect, perhaps as high as 1.6 to match PPS Sieve and Moo credits (based on what I remember !)

I would set TF daily credits a bit lower than PPS-SV ones so that we'll get only users that are interested in science here.
13) Message boards : Number crunching : Trial Factoring (Message 6010)
Posted 4 Apr 2020 by Luigi R.
Not worth running it at those rates, unless someone just loves this project.

Me. :)
14) Message boards : Number crunching : Trial Factoring (Message 6009)
Posted 4 Apr 2020 by Luigi R.
Rebirther, maybe you should write on News when you increase TF exponent.
77-78 are very long on my gpu (GTX1060).
15) Message boards : Number crunching : Tiny elapsed/run times (Message 5632)
Posted 23 Jan 2020 by Luigi R.
First of all, I'm not restarting BOINC.

Some WUs have correct elapsed time and tiny run time.
E.g. R510_200-250k_wu_2872_1
I guess there is nothing wrong here.

Some WUs have tiny elapsed time and tiny run time.
E.g. S177_retest2_wu_119_4
3.04 seconds elapsed, 0.09s seconds run.
3 invalid tasks before mine that is valid.
Is this ok?
16) Message boards : Number crunching : No checkpoints for long3 (Message 4994)
Posted 27 Feb 2019 by Luigi R.
nope.
time scince last checkpoint: 1hr 44m 53sec
cpu run time: 1hr 44m 53sec

This is what BOINC says. You are talking about numbers that are not correct.

You must see stderr.txt on your slots directory, as rebirther said, that it's not where BOINC gets its numbers.


If you think it's not like that, try to restart BOINC when work is complete at 95% when you get a smaller wu (e.g. 20-minute wu). You will see restarted work is completed within a couple of minutes.
17) Message boards : Number crunching : Little primes (Message 4965)
Posted 18 Feb 2019 by Luigi R.
Ok, no problem. Why do you do manually?
18) Message boards : Number crunching : Little primes (Message 4963)
Posted 17 Feb 2019 by Luigi R.
I'm tracking lresults.txt content for curiosity.

I noticed that I discovered some little primes (~40k digits) while crunching these small S3_80-90k tests.
What about the "paternity of discovery"? :D
Will I be inserted here (first post)?
19) Message boards : Number crunching : SR-base overheat !? (Message 4898)
Posted 23 Jan 2019 by Luigi R.
What frequency have you tried?
Disable Turbo Boost.
Disable Hyper Threading or use 50% CPU.
Run 4 tasks, but...
Start from 2.0GHz and increase by little steps till you reach 70C.
Tjunction for these chips is around 98C, so don't worry.
Leave that frequency and good crunching!

P.S. My i7-4770k @3.5GHz is getting 70C with TB off. If I decrease frequency @2.1GHz, temperature drops to 50C. You should observe something similar.
20) Message boards : Number crunching : SR-base overheat !? (Message 4892)
Posted 22 Jan 2019 by Luigi R.
If you run SR alone, you could set a lower frequency leaving the CPU at 100%.


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