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-   -   COMPLETE!!!! Thinking out loud about getting under 20M unfactored exponents (https://www.mersenneforum.org/showthread.php?t=22476)

PhilF 2019-04-27 16:01

[QUOTE=LaurV;514867][URL="https://www.rieselprime.de/ziki/Brent-Suyama_extension"]Here[/URL] (most probably you found it long time ago, but I didn't see this thread till petrw1 woke it up by posting)[/QUOTE]

Thanks for that! It almost makes sense, lol. :smile:

petrw1 2019-06-05 21:00

June 5, 2019 Update ...100!!!
 
6 more ranges cleared: 33.2, 35.0, 38.3, 38.4, 45.2, 46.6

100 total ranges cleared or 20.12% (Plus 4 bonus ranges in the 6xM)

4 Ranges with less than 20 to go.
444 more factored....25% total factored.

Personally, I found my 900th factor in this sub-project.

Thanks again for everyone contributing.

More help is always gratefully appreciated.

petrw1 2019-08-01 05:38

July 31, 2019 Update
 
7 more ranges cleared: 3.0, 31.0, 32.0, 32.6, 48.2, 49.3, 49.5

107 total ranges cleared or 21.53%

9 Ranges with less than 20 to go.
755 more factored....26.35% total factored.

Personally, I found my 1,000th factor in this sub-project a couple weeks ago.

There has been extra help recently.
Wonderful, wonderful!!!

Thanks again for everyone contributing.

LaurV 2019-08-01 05:54

That was me, I put another 2 cards into it (for a total of 4) for a while, but they only work 14 or 16 hours per day (off overnight). When full power, it totals an about 10THzD/D (you'll see the effect in few days).


Edit: or not? it seems I work a bit off your ranges :shock: (at least, what Chris is serving me). And hopefully you mean 30M not 3M.

chalsall 2019-08-01 07:50

[QUOTE=LaurV;522811]That was me, I put another 2 cards into it (for a total of 4) for a while, but they only work 14 or 16 hours per day (off overnight). When full power, it totals an about 10THzD/D (you'll see the effect in few days).[/QUOTE]

Please trust us: we are well aware of your contributions. And further please trust: they are being targeted... :smile:

petrw1 2019-08-01 15:06

[QUOTE=LaurV;522811]That was me, I put another 2 cards into it (for a total of 4) for a while, but they only work 14 or 16 hours per day (off overnight). When full power, it totals an about 10THzD/D (you'll see the effect in few days).


Edit: or not? it seems I work a bit off your ranges :shock: (at least, what Chris is serving me). And hopefully you mean 30M not 3M.[/QUOTE]

Yes I noticed and I appreciate it immensely.
3M was cleared independently by others doing ECM.

You should move to Canada for the winter. No more overheating. :missingteeth:

petrw1 2019-09-06 01:56

90M is under 200,000 unfactored.

petrw1 2019-09-23 05:25

2019-09-22 Update
 
7 more ranges cleared: 34.1, 35.4, 36.7, 36.9, 39.5, 40.4, 47.5

107 total ranges cleared or 21.53%

5 Ranges with less than 20 to go.
587 more factored....27.42% total factored.

There has been extra help recently.
Wonderful, wonderful!!!

Thanks again for everyone contributing.

masser 2019-09-23 10:32

Have you determined the number of factors you need to find to complete your initial (<60M) sub-project? That might make for an interesting countdown.

petrw1 2019-09-23 15:40

[QUOTE=masser;526369]Have you determined the number of factors you need to find to complete your initial (<60M) sub-project? That might make for an interesting countdown.[/QUOTE]

I took my first snapshot 2017-07-24 (A little more than 2 years ago).
However I only started working on it in October of 2017 … 2 years ago,

Factors required:
2017-07-24: 55,228
2019-09-22: 40,087 = 27.42% complete.

I have NOT found all 15,000 … only 10% of them.
Some of the rest were found by other intentional helpers
But most were found by standard PimeNet low level ECM
and others just working on whatever strikes their fancy possibly aware of this project but in most cases likely not … that will continue.

We'll get about half of the remaining factors from P-1; and ECM.
For these work types the work required actually diminishes as the exponents get smaller.

As for the factors we will need to find via TF I understand that with each successive bit level the work required doubles
....and further that smaller exponents take longer to TF at the same bit level.

That said I am putting a little faith in hardware getting faster over time.
As well, I've had a lot of help from others (whom I will not single out; but, THANKS!)

As well, there are some ranges between 6xM and 8xM that are not complete; I've completed a few. Based on TF levels for higher ranges I expect them to complete without any additional effort on my part.

So when will it actually finish; or will it finish at all?????
I hope so; I have no plans to stop.

petrw1 2019-11-20 21:49

2019-11-20 Update
 
7 more ranges cleared: 2.4, 33.5, 33.7, 35.7, 36.4, 39.7, 42.9
And a bonus range (I dabble a bit in the 60M ranges too): 64.3

121 total ranges cleared or 24.35%
20 Ranges with less than 20 to go.

2,669 more factored (17,810 total)....32.25% total factored.

Got a HUGE!!!! boost in the last couple months from a contributor whom shall remain anonymous.

Thanks again for everyone contributing.

Personally I have completed just over 75,000 assignments.
1,252 factors (470 TF, 753 P-1, 29 ECM)
and just over 2 Million GhzDays to this project.

petrw1 2019-11-20 22:33

Want to participate?
 
I won't go into a lot of detail because most of you understand this at least as well as I do.

And I am well aware that this effort will NOT in any way contribute to finding primes.
It is nothing more than a sub-project that interests me: My Iron; My Choice.
And somewhat surprisingly and flattering it has peaked the interest of several others who have been helping over much of the last 2 years. Thank you; thank you.

First and foremost no toe-stepping. Don't grab already assigned exponents. However, since some of us are working N/A (Not Assigned) we need to let each other know where we are working as such.
A few recommendations:
1. What you are working on can be noted here with a post
2. There is another thread specifically for P-1 coordination: [url]https://www.mersenneforum.org/showthread.php?p=530775[/url]
3. For TF between 30M and 69M Chalsall is reserving and coordinating assignments here: [url]https://www.gpu72.com/reports/available/[/url]
If you are getting work from [url]www.gpu72.com[/url] (ie. via MisFit) you need to specify a work type of "Double Check Tests" optionally with "What makes sense" or "Let GPU72 decide".

Briefly I am looking at 0.1Million ranges under 60Million; attempting to get each range to under 2,000 un-factored. Look here at the 0.1M zoom level where the unfactored column is above 1999: [url]https://www.mersenne.ca/status/tf/0/0/4/2000[/url]

At the low end 2.6M to about 19.9M your best bet is lots of ECM
OR LARGE P-1. MUCH larger than the default. There is some discussion at the thread above re P-1 coordination.

At the highest end 50M+ I suggest I've done at much P-1 as is needed. We are left with TF above 74 bits.

The remaining ranges (20.0M - 49.9M) will need a wise combination of somewhat aggressive P-1 and TF.
At the present time the bulk of the effort is in the 30M and 40M ranges with lots of P-1 and TF. Since anyone is welcome to help out anywhere definite coordination is required here.

Thanks and enjoy.

masser 2019-11-20 22:59

[QUOTE=lycorn;495476]Looking at it from a slightly different point of vue:

157 [B]0.1M[/B] ranges cleared, out of 600 ([B]26.17%)[/B]

13 [B]1M[/B] ranges cleared, out of 60 ([B]21.67%)[/B]

1 [B]10M[/B] range cleared, out of 6 ([B]16.67%)[/B][/QUOTE]

I like lycorn's metrics:

224 100K ranges cleared, out of 600: 37.33%
17 1M ranges cleared, out of 60: 28.33%
1 10M range cleared, out of 6: 16.67%

petrw1 2019-11-20 23:17

[QUOTE=masser;531124]I like lycorn's metrics:

224 100K ranges cleared, out of 600: 37.33%
17 1M ranges cleared, out of 60: 28.33%
1 10M range cleared, out of 5: 16.67%[/QUOTE]

Agreed....I watch at every level all the way to 999M.
I just focus my efforts below 59.9M.
I am sure that 90M+ will take care of itself with the standard work.
Between 59.9M and 89.9M there are only 16 ranges; some of which are being worked on.

As well I know there are some 0.1M ranges that I will NOT complete because they would require excessive effort.
However, I do intend to clear every 1M range … if I live that long :P

masser 2019-12-02 03:54

Less than 2 million unfactored in the 2 < p < 10^8 range!

See: [URL="https://www.mersenne.ca/status/tf/0/0/2/0"]https://www.mersenne.ca/status/tf/0/0/2/0[/URL]

petrw1 2019-12-02 04:42

YAY!!!!
 
[QUOTE=masser;531835]Less than 2 million unfactored in the 2 < p < 10^8 range!

See: [URL="https://www.mersenne.ca/status/tf/0/0/2/0"]https://www.mersenne.ca/status/tf/0/0/2/0[/URL][/QUOTE]

Our first 100M Range cleared.
And these 10M ranges: 50M, 60M, 70M, 80M and 90M
These 1M ranges: 0M, 1M, 2M, 44M, 46M, 47M, 49M, 50M to 98M, 332M, 875M, 977M.
The 0.1M ranges (my ultimate goal) are too numerous to list here.

lycorn 2019-12-03 08:57

[QUOTE=petrw1;531123]

First and foremost no toe-stepping. Don't grab already assigned exponents. However, since some of us are working N/A (Not Assigned) we need to let each other know where we are working as such.
Since anyone is welcome to help out anywhere definite coordination is required here.
[/QUOTE]

I am currently TFing the 19M range from 69 to 70 bits. Progressing from "top to bottom", the sub ranges 19.9 to 19.6 are already at 70. I´ve found 76 factors so far. No immediate plans to stop, I´ll let you know from time to time where I´m standing.

This contributes to petrw1´s sub-project and is also part of something I´ve been monitoring over the last couple of months or so: the elimination of all exponents < 1G TFed to less than 70 (either by finding a factor or by just upping the TF level to >= 70 bits). There are people working actively in the 68 bit level, as well as some work on 64->65 and 65->66. SInce the 24th of September, 7991 were "eliminated", there are currently 384843 to go. The average bit level for those exponents is currently 68.4944 bits.

Gordon 2019-12-03 23:34

[QUOTE=lycorn;531898]I am currently TFing the 19M range from 69 to 70 bits. Progressing from "top to bottom", the sub ranges 19.9 to 19.6 are already at 70. I´ve found 76 factors so far. No immediate plans to stop, I´ll let you know from time to time where I´m standing.

This contributes to petrw1´s sub-project and is also part of something I´ve been monitoring over the last couple of months or so: the elimination of all exponents < 1G TFed to less than 70 (either by finding a factor or by just upping the TF level to >= 70 bits). There are people working actively in the 68 bit level, as well as some work on 64->65 and 65->66. SInce the 24th of September, 7991 were "eliminated", there are currently 384843 to go. The average bit level for those exponents is currently 68.4944 bits.[/QUOTE]

Come down to the sub 1M playing field :-)

lycorn 2019-12-04 07:16

[QUOTE=Gordon;531961]Come down to the sub 1M playing field :-)[/QUOTE]

I am playing there already...
Found 68 new ECM factors since last March. Nothing to write home about, but...

masser 2019-12-07 18:59

[QUOTE=petrw1;531123]
First and foremost no toe-stepping. Don't grab already assigned exponents. However, since some of us are working N/A (Not Assigned) we need to let each other know where we are working as such.
A few recommendations:
1. What you are working on can be noted here with a post
2. There is another thread specifically for P-1 coordination: [url]https://www.mersenneforum.org/showthread.php?p=530775[/url]
[/QUOTE]

I am using my two slow GPUs to TF the "tentpoles" of this project, the 100K ranges that have over 2200 unfactored exponents remaining. Currently, they are working the 17.0M range. Once that range is under 2200 unfactored, I'll move the GPUs to 15.5, 10.7 and/or 14.0.

I'm still using my i5 cpu to P-1/ECM the 2.6M and 2.8M ranges, as noted in the redoing P-1 thread.

lycorn 2020-01-12 18:57

Yesterday I finished the 19M range (69 -> 70 bits). 218 factors found.
On to 18M. 18.9 already under way.

petrw1 2020-01-12 19:24

[QUOTE=lycorn;534973]Yesterday I finished the 19M range (69 -> 70 bits). 218 factors found.
On to 18M. 18.9 already under way.[/QUOTE]

:YAY:

petrw1 2020-01-21 01:55

2020-01-20 Update...a big month
 
19 more ranges cleared: 2.6, 2.7, 5.3, 30.7, 31.7, 34.0, 36.0, 36.3, 36.6, 37.8, 39.0, 40.7, 41.5, 42.3, 43.1, 43.2, 447, 46.5, 49.8
And 2 bonus ranges (I dabble a bit in the 60M ranges too): 63.1, 63.7

140 total ranges cleared or 28.17%
22 Ranges with less than 20 to go.

2,520 more factored (20,330 total)....36.81% total factored.

Continuing to get lots of great help. THANKS

Thanks again for everyone contributing.

masser 2020-01-25 18:02

[QUOTE=masser;532286]I am using my two slow GPUs to TF the "tentpoles" of this project, the 100K ranges that have over 2200 unfactored exponents remaining. [/QUOTE]

Change of plans. I will finish the 17.0 M range, but then move on to LLTF due to the great demand for that work currently. My GPUs will move back to the "under 20M unfactored" project once the LLTF effort is more comfortably ahead of the first time LL/PRP wavefront.

petrw1 2020-02-09 06:23

Less than 200,000 unfactored below .....
 
10M.

I know it's a duplicate with New Milestone but I think it belongs in both

masser 2020-02-10 04:54

[QUOTE=petrw1;537134]10M.

I know it's a duplicate with New Milestone but I think it belongs in both[/QUOTE]

Nice!

ATH 2020-02-10 22:06

I made this overview of the number of unfactored exponents in each range:
[URL="http://hoegge.dk/mersenne/unfactored.html"]unfactored.html[/URL]

based on the hourly primenet stats:
[url]https://mersenne.org/primenet[/url]

petrw1 2020-02-11 02:37

[QUOTE=ATH;537262]I made this overview of the number of unfactored exponents in each range:
[URL="http://hoegge.dk/mersenne/unfactored.html"]unfactored.html[/URL]

based on the hourly primenet stats:
[url]https://mersenne.org/primenet[/url][/QUOTE]

Nice

lycorn 2020-02-11 20:18

[QUOTE=ATH;537262]I made this overview of the number of unfactored exponents in each range:
[URL="http://hoegge.dk/mersenne/unfactored.html"]unfactored.html[/URL]

based on the hourly primenet stats:
[url]https://mersenne.org/primenet[/url][/QUOTE]

That's nice. Thank you for sharing the report!
I would just suggest that the already known primes be removed from the "unfactored" count, so it will reflect more accurately the number of remaining exponents to factor.

ATH 2020-02-12 07:26

[QUOTE=lycorn;537378]That's nice. Thank you for sharing the report!
I would just suggest that the already known primes be removed from the "unfactored" count, so it will reflect more accurately the number of remaining exponents to factor.[/QUOTE]

Thanks, good point, I forgot to remove the primes. Done now. The report updates 20min past the hour.

lycorn 2020-02-12 08:27

That's lovely, thx!

LaurV 2020-02-13 05:38

It looks cute and we like the colors, but isn't that a duplication of the (more functional) [URL="https://www.mersenne.ca/status/tf/0/0/1/0"]visualization tool[/URL] from Chris/James?

ATH 2020-02-13 09:17

Mine is based on GIMPS data from mersenne.org and the other one is based on mersenne.ca data. Looks like there is not 100% agreement on the numbers.




Edit: I just noticed the mersenne.ca is from 2020-02-12T23:59:00. Comparing to the report from mersenne.org on 2020-02-13 00:00 UTC, they are almost in 100% agreement, just 4 exponents off:

[CODE] mersenne.org mersenne.ca
0M-100M [I][B]1995436 1995437[/B][/I]
100M-200M 2070999 2070999
200M-300M [I][B]2146896 2146899[/B][/I]
300M-400M 2128386 2128386
400M-500M 2152672 2152672
500M-600M 2130295 2130295
600M-700M 2137174 2137174
700M-800M 2150205 2150205
800M-900M 2117670 2117670
900M-1000M 2117112 2117112

0M-1000M [I][B]21146845 21146849[/B][/I][/CODE]

petrw1 2020-03-01 22:31

2020-03-01 Update
 
14 more ranges cleared: 32.3, 33.1, 33.8, 34.2, 34.3, 34.5, 35.2, 39.8, 39.9, 40.2, 41.3, 41.6, 41.8, 41.9,
And 2 bonus ranges (I dabble a bit in the 60M ranges too): 66.3, 66.5

154 total ranges cleared or 30.99%
15 Ranges with less than 20 to go.

1,146 more factored (21,475 total)....38.88% total factored.

Continuing to get lots of great help. THANKS

Thanks again for everyone contributing.

lycorn 2020-03-04 09:50

[QUOTE=ATH;537491]Mine is based on GIMPS data from mersenne.org and the other one is based on mersenne.ca data. Looks like there is not 100% agreement on the numbers.

[/QUOTE]

There are in fact some temporary discrepancies on the numbers.
For example, if you check now the mersenne.ca report it will tell you that 38 numbers were factored during the 24 hours of the 3rd of March. The Primenet page will display 337.
This type of discrepancy is rather common; the mersenne.ca count of exponents factored in the last 24 hours (better said, the day before) is sometimes lower, sometimes higher than Primenet´s.

lycorn 2020-03-13 23:41

Just finished the 18M range to 70 bits.
248 factors found.
Starting 17M.

petrw1 2020-03-14 02:24

[QUOTE=lycorn;539674]Just finished the 18M range to 70 bits.
248 factors found.
Starting 17M.[/QUOTE]

:chris2be8:

lycorn 2020-04-27 11:59

17M finished to 70 bits.
183 factors found.
16M to start in a few days.

petrw1 2020-05-12 21:09

May 12 Update
 
12 more ranges cleared: 2.8, 2.9, 30.0, 30.9, 31.3, 31.4, 31.8, 32.2, 33.4, 35.9, 37.4, 39.4

166 total ranges cleared or 33.40%
14 Ranges with less than 20 to go.

1,608 more factored (23,083 total)....41.80% total factored.

Continuing to get lots of great help. THANKS

Thanks again for everyone contributing.

petrw1 2020-05-12 22:17

Curious how you can contribute?
 
Briefly I am working on getting ALL "100K ranges" to under 2,000 unfactored exponents.
[B]So, to be clear, I am finding factors; I am NOT looking for primes.[/B]

"100K ranges": Exponents from 3.0Million to 3.1M; 56.6M to 56.7M; 993.4M to 993.5M.

To date all ranges under 3.1M are "cleared" (under 2,000 unfactored).
Effort will NOT be required over 86.4M; these ranges will ultimately clear via the current prescribed TF levels and P-1.

I started this personal sub-project July of 2017 (almost 3 years ago).
I have been primarily focused on ranges up to 60M.
As of the start date there were 498 ranges to go (out of a possible 600).
As of today that count is at 332.

Finally, there are 11 ranges in my sideview mirror between 60.0M and 86.3M.

The required factors can be found via 1 of 3 methods:

1. Trial Factoring (TF): Can be used on any exponent but are most efficient on higher Exponents and at lower Bit Levels.
2. P-1: Can be used on any exponents but are most efficient on lower Exponents.
3. ECM: Best suited for the LOW Exponents (under about 10M).

========== HOW CAN YOU HELP? =======
First, keep in mind that most exponents in the ranges of interest have already had TF and P-1 to the prescribed levels required before PrimeNet will assign LL/DC/PRP tests.
In order to find the required factors more aggressive effort is required.

Most importantly, if the work to be done is NOT assigned with PrimeNet please let others know here where you plan to work.

1. Look here for ranges with more than 1999 unfactored: [url]https://www.mersenne.ca/status/tf/0/0/4/2000[/url]
Use a Zoom Level of 0.1M.

2. Determine which range you want to work on and make note of:
- How many factors are required
- The current TF bit level
- How well P-1 has been done using: (Sort the results by lowest B2 and B1) [url]https://www.mersenne.org/report_factoring_effort/?exp_lo=20000000&exp_hi=20099999[/url]

3. Determine the best factoring method for the range chosen. Consider:
- For TF: GPUs are best for TF. A bit level of TF will find about 20 - 25 factors; but each successive bit level takes twice as long as the previous bit level.
- For P-1: P-1 requires LOT of RAM. The success rate is based on the difference between the P-1 already done and the P-1 you could do with higher B1/B2 values: This tool helps calculate the expected probabilities and effort required: [url]https://www.mersenne.ca/prob.php[/url]
- For ECM: Again only for lower exponents.

4. Advertise here and then get/make the required assignments.
--- The effort required for your chosen work can be determined here:
[url]https://www.mersenne.ca/credit.php[/url]

5. Have fun; good luck and Thank You.

========== The sample link provided tells me ============
The link I provided above for 20.0M to 20.9M shows that for 20.4M
- 2,048 are unfactored; 49 factors are required to get this count UNDER 2000.
- It is currently factored to 70 bits.

- These exponents are probably too high for ECM.

- If I choose TF to 71 I can expect to find about 20 more factors with an effort of about 23,900 GhzDays using the above tools. If your GPU does 1,000 per day that is 24 days of work.

- If I choose to then TF to 72 it will find about 20 more but this time taking 48 more days.

- I could consider some aggressive P-1. I can see that there are several hundred exponents that based on current B1/B2 had a 3% or less odds of finding a factor. If I use larger B1/B2 that give more an extra 2% or better chance of finding a factor (statistically: 1 in 50) for an effort of about 2.5 GhzDays each P-1. 125 GhzDays per factor on average. This is probably about a week per factor on a decent current PC.

What might I do/recommend.
- At least 1 more bit level of TF; 2 if you have an upper end GPU.
- Then some aggressive P-1 with my CPU.

P.S. My current focus is the remaining 21 ranges between 40.0 and 49.9M.
I am doing aggressive TF and P-1.

=========== THANKS FOR YOUR TIME =========

VBCurtis 2020-05-13 18:47

If I were to dabble with ECM in the 4.0M block, should I test the numbers that have been advanced to 70 bits with the idea that TF has given up, or should I test the ones still at 69 with the idea that there are more small factors to be found?

I won't be doing very much work, just a core or 4 until I get bored of not finding factors.

masser 2020-05-13 23:45

[QUOTE=VBCurtis;545291]If I were to dabble with ECM in the 4.0M block, should I test the numbers that have been advanced to 70 bits with the idea that TF has given up, or should I test the ones still at 69 with the idea that there are more small factors to be found?

I won't be doing very much work, just a core or 4 until I get bored of not finding factors.[/QUOTE]

Could you run P-1 on that range instead? There are many candidates with B1 < 200,000 and B2 < 4M.

If you are set on running ECM, I would say focus on the candidates at the 68 bit TF level.

That range is close enough to 1999 unfactored, that you might be able to reach the target with either factoring method.

petrw1 2020-05-14 03:22

[QUOTE=masser;545329]Could you run P-1 on that range instead? There are many candidates with B1 < 200,000 and B2 < 4M.

If you are set on running ECM, I would say focus on the candidates at the 68 bit TF level.

That range is close enough to 1999 unfactored, that you might be able to reach the target with either factoring method.[/QUOTE]

I tend to agree.
I hope I am not speaking out of turn but I seem to recall a post or two from Bob Silverman … who knows WAYYYYYY more about any of this than I do … that even for these small exponents P-1 is more efficient that ECM.
As well in these low ranges you do NOT need a lot of RAM to run decent P-1.

For example: [url]https://www.mersenne.ca/prob.php?exponent=4000001&b1=1500000&b2=35000000&guess_saved_tests=2&factorbits=68&K=1&C=-1[/url]
6% chance of finding a factor for only 0.6 GhzDays and with only a few hundred Meg of RAM.

Thanks; welcome and good luck.

petrw1 2020-05-14 03:48

And for those looking for a challenge.
 
There are a couple dozen ranges, most that have had aggressive P-1 done on the bulk of the assignments in the range as well as deep TF....
And still they stubbornly refuse to give up easily.

These ranges will need either or both of:
1. Even more aggressive P-1 on those exponents will current mediocre P-1. For this you will want a (or many) powerful CPU with lots of RAM
2. Deeper TF; where each TF assignment will take 100 or more GhzDays. For this you will want a (or many) powerful GPU.

--- And you'll need some patience.

I'll give some examples; I'll give range; current TF level; remaining Factors required:
These 3 ranges could benefit from extra P-1 on small subset of the exponents.
34.4; 74 bits TF; 60 Factors
35.1; 74; 77
35.3; 74; 64

These 4 ranges are NOT yet aggressively P-1'd.
42.6; 74; 88
43.0; 74; 84
48.4; 74; 83
49.6; 74; 81

These ranges have had aggressive P-1.
56.8; 74; 39
58.7; 74; 37
59.4; 74; 46
68.4; 75; 30
73.1; 75; 36
73.5; 75; 43

Thanks and good luck.

VBCurtis 2020-05-14 04:37

I'm fairly certain RDS pointed out the futility of running P-1 on numbers that had already been P-1'ed; recommending ECM instead. I went looking for his posts, but didn't find anything.
I don't have a GPU setup, and with P-1 now on GPU it feels like the best use of this old laptop (Broadwell ultrabook, 2-core) is to dabble in P95-ECM. I'll run curves for a week or so, perhaps until a factor turns up, and then I'll do the same with P-1.

Does that 6% chance of factor take into account the previous P-1 run that was done? The site doesn't appear to indicate it does, in which case it's a pretty big exaggeration of the actual chance of factor. Meanwhile, ECM doesn't care what prior P-1 has been done.

I'll gather some data and see if there's a clear winner- if there isn't, I'll do ECM just for something different.

petrw1 2020-05-14 05:13

[QUOTE=VBCurtis;545345]I'm fairly certain RDS pointed out the futility of running P-1 on numbers that had already been P-1'ed; recommending ECM instead. I went looking for his posts, but didn't find anything.[/QUOTE]
You could very well be correct. I think what I was recalling is that when neither has already been done then P-1 is more effective than ECM....though I'm not sure at what low levels of P-1 that MORE higher P-1 is better than ECM.

[QUOTE]
Does that 6% chance of factor take into account the previous P-1 run that was done? The site doesn't appear to indicate it does, in which case it's a pretty big exaggeration of the actual chance of factor. Meanwhile, ECM doesn't care what prior P-1 has been done.
[/QUOTE]

No, sorry it does not. I mean to then forgot.
The current P-1 ranges from about 2.4% to 8.2% (yes, someone went real hard on some … also factored them to 70 bits).
But about 40% of the exponents are under 3.42%.
So, yet for these the net difference (vs 6%) would be about 2.5 - 3.5%.
And 8.15% is only 2 GhzDays

VBCurtis 2020-05-14 05:38

Excellent, thank you for confirming my estimates about P-1 with some prior P-1 done.

ECM does seem a less efficient method than re-doing P-1 for candidates with prior B1 of 120k-150k. I'll run ECM anyway for a while and see if my estimates about factor frequency are reasonable; I imagine I'll end up P-1'ing the ones that stand to benefit most after I play with ECM.

lycorn 2020-05-16 09:40

I´m back at work in low ranges.
Just started 16M, 69->70. 16.9 is currently underway.

On another note, the overall < 20M subproject is now getting a huge push from the folks at SRBase / BOINC. They are sweeping through high ranges at an amazing rate, finding an impressive number of new factors. Let´s see how long this will last.

VBCurtis 2020-05-20 16:22

In the 4.0M range I've chosen to work in, P-1 seems about twice as fast per expected factor as ECM. I have ECM running on an old laptop anyway, with P-1 on a newer machine.

I found my first two factors with P-1 for this effort, 76 and 81 bits. Rather satisfying! For the sake of this effort, too bad they were factors for the same exponent...

When I saw a 48-digit factor in the results file, I was like "awww, yea! I bet that's a record!" (for this size) Alas, just a pair of normal-sized factors. Exponent is 4067587.

petrw1 2020-06-03 17:31

1,000 Days
 
A thousand days have passed since my first assignment in this sub-project.
In those thousand days I:
- Found 1,569 factors
- Completed over 3,000,000 GhzDays of work (mostly thanks to my 2080Ti)
- Got 50M range to less than 10 ranges with over 1,999 factors remaining
- Got 40M to under 200,000 factors remaining

But this is a mere fraction of the total factors found and ranges cleared by the collective.

Wouldn't it be cool if when I get to 1,999 days I can declare that the under-2,000 project is complete!

Thanks to all.

masser 2020-06-05 06:33

[QUOTE=petrw1;547078]
- Got 40M to under 200,000 factors remaining
[/QUOTE]

:banana:

lycorn 2020-06-05 12:22

Also, taking the figures in [URL="https://www.mersenneforum.org/showpost.php?p=481690&postcount=36"]This post[/URL] as a reference, and noting that at the time of typing my current post the number of unfactored exponents below 1G is 21 029 537, we see that in a bit more than 2 years we cleared just over 500,000 of them. Not bad, maybe another 5 years to achieve the goal that makes the subject of this thread.

ATH 2020-06-11 23:04

Today we fell below 21M unfactored exponents: 20,999,392 as of 22:00 UTC (6 pm EDT).

Edit:
It happened at 19:00 UTC:

18:00 UTC (2 pm EDT): 21,000,058
19:00 UTC (3 pm EDT): 20,999,407

petrw1 2020-06-12 00:33

[QUOTE=ATH;547751]Today we fell below 21M unfactored exponents: 20,999,392 as of 22:00 UTC (6 pm EDT).

Edit:
It happened at 19:00 UTC:

18:00 UTC (2 pm EDT): 21,000,058
19:00 UTC (3 pm EDT): 20,999,407[/QUOTE]

Yes, SRBase is knocking off the factors like a madman...he swept through all the remaining 8 million or so 70-71 bit assignments in a matter of a couple months

petrw1 2020-06-12 00:34

[QUOTE=ATH;547751]18:00 UTC (2 pm EDT): 21,000,058
19:00 UTC (3 pm EDT): 20,999,407[/QUOTE]

By the way where do you see this?

ATH 2020-06-12 01:34

My script that generates this page: [URL="http://hoegge.dk/mersenne/unfactored.html"]unfactored.html[/URL]

I ran it on the hourly backups I have of [url]https://www.mersenne.org/primenet[/url]

petrw1 2020-07-10 01:48

I've completed 100,000 assignments for this project
 
In just under 3 years.

65,710 TF for 642 Factors with a 0.98% success rate
31,195 P1 for 972 Factors with a 3.12% success rate
3,095 ECM for 29 Factors with a 0.94% success rate

alpertron 2020-07-11 19:34

After running my Nvidia GTX 950 for 30 days, I was able to find more than 60 factors in the ranges 71->72 bits, 72->73 bits and partially in 73->74 bits, reducing the number of unfactored Mersenne numbers in the range [b]987.9M[/b] to 1999.

According to [url]https://www.mersenne.ca/status/tf/0/0/4/98700[/url], the number is 2001, but this includes the factored numbers M987977819 and M987976229 that were found after 00:00 GMT today, so the current number is 1999.

petrw1 2020-07-12 02:15

Great...that's 1 less remaining.

[QUOTE=alpertron;550295]After running my Nvidia GTX 950 for 30 days, I was able to find more than 60 factors in the ranges 71->72 bits, 72->73 bits and partially in 73->74 bits, reducing the number of unfactored Mersenne numbers in the range [b]987.9M[/b] to 1999.

According to [url]https://www.mersenne.ca/status/tf/0/0/4/98700[/url], the number is 2001, but this includes the factored numbers M987977819 and M987976229 that were found after 00:00 GMT today, so the current number is 1999.[/QUOTE]

petrw1 2020-07-25 02:11

3 Year Project Update
 
It is 3 years since I took my first set of stat for this sub-project.
I didn't personally start working on it until 3 months later but others are always making progress.

Since last update (May 12)
11 more ranges cleared: 3.3, 30.6, 40.0, 45.3, 45.8, 50.2, 52.3, 52.9, 53.2, 53.9, 56.6
And 8 bonus ranges: 61.6, 65.4, 69.8, 71.8, 75.2, 78.2, 81.4, 86.3.
The 6 cleared in the 5x.xM and all the bonus ranges are a HUGE thanks to someone (who prefers to remain anonymous) who took up my challenge and cleared most of the STUBBORN ranges I mentioned a few posts above.

In the last 3 years:
177 total ranges cleared or 35.61%
14 Ranges with less than 20 to go.
945 more factored (24,026 total)....43.50% total factored.

Continuing to get lots of great help. THANKS

Thanks again for everyone contributing.

masser 2020-07-30 03:57

43 down, 200 to go
 
I've worked on the [URL="https://www.mersenne.ca/status/tf/0/0/5/1400"]14.0M range[/URL] for the last 4 months: 43 factors found, with a mix of TF, P-1, and a little bit of ECM. We now have 200 to go for the under 2000 goal. If everything goes according to plan, I should complete this range in about 2 years.

petrw1 2020-07-30 04:25

[QUOTE=masser;551969]I've worked on the [URL="https://www.mersenne.ca/status/tf/0/0/5/1400"]14.0M range[/URL] for the last 4 months: 43 factors found, with a mix of TF, P-1, and a little bit of ECM. We now have 200 to go for the under 2000 goal. If everything goes according to plan, I should complete this range in about 2 years.[/QUOTE]

:wraithx:

Yay

petrw1 2020-08-02 05:07

Low bit level assignments now available.
 
29,xxx,xxx from 70-72 bits. (Only 8 and 16 GhzDays per)

Yee Haw.

Viliam Furik 2020-09-24 15:45

10M to 11M range
 
I have moved the entire range to 70-bits and found about 300 factors with mostly TF (about 250) and P-1 (about 50). It took me about a half year.

1028 factors left to find.

masser 2020-09-24 16:41

[QUOTE=Viliam Furik;557762]I have moved the entire range to 70-bits and found about 300 factors with mostly TF (about 250) and P-1 (about 50). It took me about a half year.

1028 factors left to find.[/QUOTE]

Nice job! What's next for you?

Viliam Furik 2020-09-24 17:23

[QUOTE=masser;557767]Nice job! What's next for you?[/QUOTE]

After I finish-off this range, I want to do the stubborn 42.6M range.

I was also thinking if it wouldn't be easier if instead of less than 2000 unfactored exponents we aimed for something like 40% unfactored. Well, it would certainly be easier, but the real question is whether it would be good enough...

petrw1 2020-09-24 18:51

[QUOTE=Viliam Furik;557772]After I finish-off this range, I want to do the stubborn 42.6M range.

I was also thinking if it wouldn't be easier if instead of less than 2000 unfactored exponents we aimed for something like 40% unfactored. Well, it would certainly be easier, but the real question is whether it would be good enough...[/QUOTE]

I absolutely appreciate any and all help I get. I will suggest where I could use help but i'll never dictate what anyone works on. 40% is a round number and if you choose to stop there I won't complain but I'm still hooked on under 2000.

PS if you check for recent factors found under 80M you'll notice someone putting a lot of GPU power to the stubborn ranges. How long they stick around and whether 42.6 is in their sights remains to be seen.
Thanks again.

Uncwilly 2020-09-24 20:18

Also watch for where TJAOI is turning in factors. I think most recently it is in the 67 bit range. I saw some recently, I don't remember what exponent level.

VBCurtis 2020-10-16 18:41

Thanks to a whole bunch of P-1 factors, 4.0M is now complete (1998 remaining).

Might masser like some P-1 or ECM assistance at 14.0M? I have a 4GB-ram laptop I'm using for this effort, so it won't be much assistance...

pinhodecarlos 2020-10-16 19:11

I can help, 4 cores 16GB, how do I setup Prime95?


Edit: I don't care about the credits. Someone just send me a worktodo file with ECM or P-1 to be run on one worker 4 threads.

petrw1 2020-10-16 20:18

[QUOTE=pinhodecarlos;560078]I can help, 4 cores 16GB, how do I setup Prime95?


Edit: I don't care about the credits. Someone just send me a worktodo file with ECM or P-1 to be run on one worker 4 threads.[/QUOTE]

Thanks a lot!!!!

How much setup help do you need?

With 16GB or RAM I expect you'd get the best throughput with 4Workers/1Threads or possibly 2W/2T.

How much work are you interested in?
Here are P-1 100 assignments; 3.88GhzDays each; expected success rate close to 3%
Divide among workers as you see fit...or use this tool to divide them for you:
[url]https://www.mersenne.ca/balance.php[/url]


[CODE]PMINUS1=N/A,1,2,39300199,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39300439,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39300553,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39300907,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39300971,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39303083,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39304439,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39304519,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39306121,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39307679,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39310961,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39310967,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39313913,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39314131,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39314839,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39315379,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39316523,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39317231,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39317809,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39319363,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39321619,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39323149,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39323857,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39323981,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39324079,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39326041,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39327403,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39327469,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39328207,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39334051,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39336569,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39336607,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39336919,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39337537,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39343327,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39344083,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39344693,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39353863,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39355471,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39357511,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39358283,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39360413,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39362689,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39363659,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39366583,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39366953,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39367397,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39367589,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39367897,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39368783,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39371351,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39373157,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39373349,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39374017,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39374879,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39375857,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39377353,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39378373,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39379783,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39380603,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39380941,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39385121,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39386257,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39387197,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39387709,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39388483,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39389057,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39390293,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39391039,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39391229,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39391589,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39392011,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39394067,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39395347,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39395437,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39398987,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39399743,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39399781,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39300473,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39302359,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39302651,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39303611,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39304607,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39305249,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39305821,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39306089,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39306779,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39310147,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39310367,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39311099,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39311663,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39311911,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39312283,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39313427,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39313471,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39314893,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39315557,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39316349,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39316441,-1,1000000,20000000,74
PMINUS1=N/A,1,2,39317723,-1,1000000,20000000,74[/CODE]

pinhodecarlos 2020-10-16 20:29

This is enough for now, added to client, thank you.


Edit: ETA 20 days.

petrw1 2020-10-17 02:48

[QUOTE=pinhodecarlos;560087]This is enough for now, added to client, thank you.


Edit: ETA 20 days.[/QUOTE]

Your first result came in with B1 only: Is it possible you forgot to allocate RAM in the Prime95 client? In Windows its under: Options / CPU....

[CODE]
Carlos Pinho HomeComputer 39300199 NF-PM1 2020-10-16 23:30 0.0 1.9092 B1=1000000[/CODE]

pinhodecarlos 2020-10-17 05:51

Under local.txt I had:


Memory=0 during 7:30-23:30 else 0


so I changed now to


Memory=14000 during 7:30-23:30 else 14000

petrw1 2020-10-17 06:09

[QUOTE=pinhodecarlos;560108]Under local.txt I had:


Memory=0 during 7:30-23:30 else 0


so I changed now to


Memory=14000 during 7:30-23:30 else 14000[/QUOTE]

Perfect

If you choose to re-add the few assignments already done with the old setting; as long you did not delete the workfiles it will only run Stage 2 with the B2

pinhodecarlos 2020-10-17 06:15

[QUOTE=petrw1;560110]Perfect

If you choose to re-add the few assignments already done with the old setting; as long you did not delete the workfiles it will only run Stage 2 with the B2[/QUOTE]
Of course..thank you.

pinhodecarlos 2020-10-17 14:15

Funny though but I think I’m credited twice per one run on B1 with the memory mistake, is this correct?
First run B1 only: 1.90GHz/day
Second run B2 only: 3.8855 GHz/day

masser 2020-10-17 15:00

[QUOTE=VBCurtis;560076]Thanks to a whole bunch of P-1 factors, 4.0M is now complete (1998 remaining).

Might masser like some P-1 or ECM assistance at 14.0M? I have a 4GB-ram laptop I'm using for this effort, so it won't be much assistance...[/QUOTE]

Awesome job on 4.0M!

I have "finished" the 14.00M to 14.01M range. If you were willing to run 3 ECM curves at the B1=50K level on each of the 200 remaining candidates in that range, that would be helpful. If that's too boring, we could think of something else.

petrw1 2020-10-17 15:18

[QUOTE=pinhodecarlos;560133]Funny though but I think I’m credited twice per one run on B1 with the memory mistake, is this correct?
First run B1 only: 1.90GHz/day
Second run B2 only: 3.8855 GHz/day[/QUOTE]

I believe that is correct. I've seen the same before.

petrw1 2020-10-18 16:23

All 100Million ranges under 2.1M unfactored.
 
[url]https://www.mersenne.ca/status/tf/0/0/1/0[/url]

pinhodecarlos 2020-10-19 11:28

So prime95 is majority of the time only allocating 8GB for P-1 Stage 2 when I've seen it using 12-13GB before after I re save the local.txt memory requirements to use the 12/13GB. What am I doing wrong?

petrw1 2020-10-19 14:06

[QUOTE=pinhodecarlos;560295]So prime95 is majority of the time only allocating 8GB for P-1 Stage 2 when I've seen it using 12-13GB before after I re save the local.txt memory requirements to use the 12/13GB. What am I doing wrong?[/QUOTE]

How many workers do you have doing P-1?
If it is more than one then the total allocated to all workers will not exceed about 95% of what you have specified in local.txt.

8G will still get you at least a third of the Relative Primes for one Stage 2 which will be very efficient.

pinhodecarlos 2020-10-19 17:23

1 worker 4 threads.

petrw1 2020-10-19 17:53

[QUOTE=pinhodecarlos;560345]1 worker 4 threads.[/QUOTE]

You'd probably see better thruput with 4/1 or 2/2.
When it allocates 8GB does it process ALL relative primes? For example something like:

[CODE][Oct 19 11:18] Available memory is 14000MB.
[Oct 19 11:18] Using 8000MB of memory. Processing 480 relative primes (0 of 480 already processed).
[/CODE]

pinhodecarlos 2020-10-19 18:00

[QUOTE=petrw1;560347]You'd probably see better thruput with 4/1 or 2/2.[/QUOTE]
This is a laptop and worried about cooling, this is a better option for me.

[QUOTE=petrw1;560347]
When it allocates 8GB does it process ALL relative primes? For example something like:

[CODE][Oct 19 11:18] Available memory is 14000MB.
[Oct 19 11:18] Using 8000MB of memory. Processing 480 relative primes (0 of 480 already processed).
[/CODE][/QUOTE]

Yes but now looking closer I can see when it needs to process 960 relative primes it uses 12GB. We are fine anyway....it is the first time I taking more time to look at client's logs. Thank you indeed.

VBCurtis 2020-10-20 18:58

[QUOTE=masser;560142]Awesome job on 4.0M!

I have "finished" the 14.00M to 14.01M range. If you were willing to run 3 ECM curves at the B1=50K level on each of the 200 remaining candidates in that range, that would be helpful. If that's too boring, we could think of something else.[/QUOTE]

I've started ECM on the suggested range. My first set is 5 curves at B1=250K; I may adjust that later. A curve at this size on the Surface tablet I'm using takes about 25k seconds, so ought to progress at roughly 5 candidates per week. I'll give it a couple weeks to start.

masser 2020-10-20 22:36

[QUOTE=VBCurtis;560448]I've started ECM on the suggested range. My first set is 5 curves at B1=250K; I may adjust that later. A curve at this size on the Surface tablet I'm using takes about 25k seconds, so ought to progress at roughly 5 candidates per week. I'll give it a couple weeks to start.[/QUOTE]

Thank you; that will be great. If you are interested, I could make some P-1 tasks available too.

pinhodecarlos 2020-10-25 08:59

My progress is slow: 35/100 done, two factors found.

masser 2020-10-25 14:14

100 down; 143 to go
 
[QUOTE=masser;551969]I've worked on the [URL="https://www.mersenne.ca/status/tf/0/0/5/1400"]14.0M range[/URL] for the last 4 months: 43 factors found, with a mix of TF, P-1, and a little bit of ECM. We now have 200 to go for the under 2000 goal. If everything goes according to plan, I should complete this range in about 2 years.[/QUOTE]

We've now been factoring the 14.0M range for 7 months: 100 factors have been found, with a mix of TF, P-1 and a little bit of ECM. 143 factors to go for the under 2000 goal, so we are almost halfway.

Some ECM highlights:
[M]M14099401[/M] has a 89.780 bit factor: [url=https://www.mersenne.ca/M14099401]1063184393209412095691752279[/url]
[M]M14017981[/M] has a 88.926 bit factor: [url=https://www.mersenne.ca/M14017981]588003375432513022023853873[/url]
[M]M14006803[/M] has a 83.617 bit factor: [url=https://www.mersenne.ca/M14006803]14830679176132537433148793[/url]
[M]M14005253[/M] has a 77.906 bit factor: [url=https://www.mersenne.ca/M14005253]283076393615085922807961[/url]

Some P-1 highlights:
[M]M14018573[/M] has a 105.648 bit factor: [url=https://www.mersenne.ca/M14018573]63580734348894934266923905132639[/url]
[M]M14057863[/M] has a 98.809 bit factor: [url=https://www.mersenne.ca/M14057863]555219273599892685265834731087[/url]
[M]M14010797[/M] has a 80.792 bit factor: [url=https://www.mersenne.ca/M14010797]2093252408084980613260481[/url]

One TF highlight:
[M]M14079067[/M] has a 71.198 bit factor: [url=https://www.mersenne.ca/exponent/14079067]More ECM would have found this, I think[/url]

It will become harder to find factors, so I'm happy to report that we have gotten some help lately from others on the forum. Many thanks!

petrw1 2020-10-25 14:50

[QUOTE=pinhodecarlos;561066]My progress is slow: 35/100 done, two factors found.[/QUOTE]

Your factor rate is good; I expect about 1 in 30 attempts.
If you want to see if LapTop heat is actually impacted you could try 2 workers / 2 cores each. You'll get better thruput and maybe without extra heat.

I say that because in your setup (1 worker 4 cores) all 4 cores are still working hard.

Thanks for any and all contributions

pinhodecarlos 2020-10-26 18:36

[QUOTE=petrw1;561093]Your factor rate is good; I expect about 1 in 30 attempts.
If you want to see if LapTop heat is actually impacted you could try 2 workers / 2 cores each. You'll get better thruput and maybe without extra heat.

I say that because in your setup (1 worker 4 cores) all 4 cores are still working hard.

Thanks for any and all contributions[/QUOTE]

Ok, so that means I’ll have to reduce the memory or how to allocate only 6 GB per worker if I want to set 2 workers 2 cores?!

petrw1 2020-10-26 21:23

[QUOTE=pinhodecarlos;561199]Ok, so that means I’ll have to reduce the memory or how to allocate only 6 GB per worker if I want to set 2 workers 2 cores?![/QUOTE]

Prime95 looks after it.
If only 1 worker is doing Stage 2 it gets all 12GB;
if 2 workers are doing Stage 2 Prime95 will divide it though not necessarily even; it depends on where each worker is at.

pinhodecarlos 2020-10-26 22:17

[QUOTE=petrw1;561208]Prime95 looks after it.
If only 1 worker is doing Stage 2 it gets all 12GB;
if 2 workers are doing Stage 2 Prime95 will divide it though not necessarily even; it depends on where each worker is at.[/QUOTE]


Updated for 2/2, will see what happens in the next days. Thank you once again.

pinhodecarlos 2020-10-31 07:50

I would like to run TF on the range 0-20M from lowest bit to 69-70 bits but I can’t seem to manage to download a sample file to try it. Also I have an account on GPU72 and can’t get them from them. Help please?

S485122 2020-10-31 08:30

[QUOTE=pinhodecarlos;561656]I would like to run TF on the range 0-20M from lowest bit to 69-70 bits but I can’t seem to manage to download a sample file to try it. Also I have an account on GPU72 and can’t get them from them. Help please?[/QUOTE]Use the Factoring limits report on the site, for instance :

[url=https://www.mersenne.org/report_factoring_effort/?exp_lo=2&exp_hi=1000000&bits_lo=1&bits_hi=69&txt=1&exassigned=1&tfonly=1&worktodo=1&tftobits=70]"Factoring Effort"[/url]

(Worktodo format list of unfactored and unassigned exponents from 2 to 1000000, that have been trial factored up to 69 bits, to bring them to 70 bits.)

Jacob

axn 2020-10-31 11:22

[QUOTE=pinhodecarlos;561656]I would like to run TF on the range 0-20M from lowest bit to 69-70 bits but I can’t seem to manage to download a sample file to try it. Also I have an account on GPU72 and can’t get them from them. Help please?[/QUOTE]

Perhaps you should start out with something more manageable? Here is the lowest 0.1M range with more than 2000 unfactored exponents: [url]https://www.mersenne.org/report_factoring_effort/?exp_lo=3100000&exp_hi=3200000&bits_lo=1&bits_hi=69&txt=1&exassigned=1&tfonly=1&worktodo=1&tftobits=70[/url]

pinhodecarlos 2020-10-31 12:40

Just wanted to trial on my old GPU, thank you guys.


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