Low/Hi Clue Thresholds

Everything about Sudoku that doesn't fit in one of the other sections

Re: LCT-18 (more)

Postby 1to9only » Mon Oct 21, 2019 9:52 am

Mathimagics wrote:the old (but soon to be "ex") PC

Can this PC be setup with an FTP server to allow results to be 'pushed' to you, rather than you currently 'pulling' from various locations (with Edge issues!)?

I've used FileZilla Server before, and it can be setup to only allow encrypted and named user logins with passwords, with read/write access to only to the user's folder. Uploaders would be using FZ client, it allows transfers to be paused and restarted.

In my own FZ setup, I still got occasional login attempts from white (or black) hats scanning for open ports, they'll try anonymous login or user/password and then disconnect!
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Re: LCT-18 (more)

Postby Mathimagics » Mon Oct 21, 2019 12:44 pm

1to9only wrote:Can this PC be setup with an FTP server to allow results to be 'pushed' to you, rather than you currently 'pulling' from various locations (with Edge issues!)?

Yes, it probably could, but it won't be necessary - there is no longer any need for any further external batch generation (Gen19C). The switchover to explicit grid testing is happening any day now - and my new PC (aka "Jack" the ThreadRipper) is on the way (or so I am led to believe).

Your FTP setup was an effective and simple-to-use option that served its purpose quite well, I think. Once I got the hang of it, "pulling" your batch files was really no effort at all. Thank you!

Cheers,
MM
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Re: Low/Hi Clue Thresholds

Postby eleven » Mon Oct 21, 2019 8:40 pm

Strange post, don't need you anymore, thanks ? Hopefully i misunderstood this.
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Re: Low/Hi Clue Thresholds

Postby Mathimagics » Tue Oct 22, 2019 1:35 am

No, you are right, it certainly looks like "we don't need you any more, buddy!" :?

I had removed a lengthy section that outlined the plans for completing LCT-19, and instead PM-ed that section directly to 1to9only.

The remainder was what got posted above. I hadn't realised that this abridged version was quite so, um, brutal ... :lol:
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LCT-19 Progress

Postby Mathimagics » Wed Oct 23, 2019 4:54 am

Well, what a clusterf*ck Week 10 turned out to be!

For a variety of reasons, we only processed 4 sets this week:

Code: Select all
       Date  Grids   New   Yield
  ------------------------------
Week 9:
  1  10 Oct    800    35    0.0433
  2  11 Oct    784    30    0.0387
  3  12 Oct    784    30    0.0387
  4  13 Oct    736    24.5  0.0333
  5  14 Oct    641    21.6  0.0337 
  6  15 Oct    630    18.9  0.0301
Week 10:
  1  20 Oct    300    10.2  0.0338 
  2  21 Oct    395    13    0.0328 
  3  22 Oct    766    21.4  0.0279 
  4  23 Oct    522    14.5  0.0279


We resolved just 59,112,156 x 20C grids all up.

The ED grid counts had started to decline towards the end of Week 9, and it was only when the first of the Week 10 sets was processed that it was clear something was going wrong. That turned out to be the result of a change I made to seed generation, a change that only affected my copy of Gen19C, not Colin's. I'll just say that I broke something that didn't need fixing. :oops:

The 3rd set results look completely normal because that set had only Colin's contributions in it. The first 2 were, obviously, only my batches. The 4th set was a blend of my batches, some produced before I fixed the problem, some produced after. Hopefully normal service has been resumed at my end!

The unresolved grid count is now 676,224,216.

My new PC, Jack (the Ripper) has not yet arrived (that has also been a clusterf*ck), but allis now well, it's ready to rip, and delivery is expected tomorrow.

All being well, next week's report should have a lot more sets!
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LCT-19 Explicit Grid Testing

Postby Mathimagics » Sun Oct 27, 2019 8:09 am

The end is in sight!

LCT-19 Completion (Explicit Grid Testing)

An executive decision has been made to cease batch production forthwith and proceed with explicit grid testing.

coloin has been instructed to kill off his workforce, and to deliver his final batches over the next couple of days.

The unresolved 20C grid pool is expected to be ~600 million grids, with an estimated completion time for explicit testing of ~280 core-days. That should take "Jack the Ripper" around 18 days to complete, and perhaps less if I can use hyper-threading effectively. Gen19C used 5GB per copy, so I waslimited to 12, but that won't be a problem here - perhaps I can get an effective 20-core throughput by doubling up on half the cores. We shall see ...

The processes involved here are much simpler than they were for the morphing stage (batch production), thank heavens! :?

  • CreateWorkUnits: this is just a pre-processing function that extracts all the unresolved 20C grids and organises them into "work units", each consisting of 100,000 grids. One unit takes about 60-75 minutes for a worker to process
  • Test19X: this is the worker process, described below
  • Update19X: this updates the LCT catalog when all of the work units for a single band file are completed

There will be 3 folders, jobs (ie work units) pending, jobs in progress and jobs completed. Each Test19X selects the next pending job, loads the grid list into memory, than starts crunching it, testing each grid with blue's Find19C function.

The job state is recorded (the memory table is saved) every 5 minutes, giving us a good restart recovery ability. On completion the final version is saved in jobs completed, and the job removed from the pending folder. Every 20C grid will be changed to either a 19C entry, or marked as known "No 19C".

All pretty straight-forward. The job folders will fit on the same super-fast SSD drive where the catalog itself is located, so IO will definitely not be a drag.

That's the plan! 8-)
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LCT-19X Progress

Postby Mathimagics » Tue Oct 29, 2019 12:18 am

LCT-19X

Ok, we are up and running. Our unresolved 20C grid count at the start of this completion exercise is 626,731,783. This translates to roughly 280 core-days.

There are 6400 jobs to process, each job representing a work-unit of 100,000 grids to test. The division is done on a band basis, so for each of the band file indices 1 to 255, there is at least one job with less than 100,000 grids. (Band files 250-255 are composite, they span multiple ED band indices).

Despite the fact that our morphing process eventually resolved ~88% of all the 20C grids that we started with, it is clear that some bands were significantly harder to hit. Here is a small sample of some of the larger bands, from the report produced by CreateWorkUnits:

Code: Select all
03:33:35: Processed  b006: ng =  96,229,043, n20 =   2,106,353, jobs =  22
03:34:32: Processed  b020: ng =  88,782,527, n20 =   1,554,894, jobs =  16
03:34:48: Processed  b022: ng =  85,627,560, n20 =   1,476,242, jobs =  15
03:35:03: Processed  b024: ng =  85,102,374, n20 =   1,553,046, jobs =  16
03:35:57: Processed  b032: ng =  40,697,708, n20 =   7,903,756, jobs =  80
03:37:40: Processed  b033: ng =  80,468,664, n20 =  20,258,707, jobs = 203
03:38:27: Processed  b034: ng =  79,175,611, n20 =   9,110,207, jobs =  92
03:39:21: Processed  b035: ng =  77,979,784, n20 =  10,512,282, jobs = 106


Band 6, the largest of all, was 97% resolved, but band 33 (the largest # of jobs) was only 75% resolved. One suspects that this is not down to sheer chance, but that band 33 probably has less 19C puzzles on average, and is highly likely to yield significant numbers of "No 19C" cases.

There is very likely to be a strong correlation between the % of unresolved grids in a band, and the average cost of testing grids in that band.

We have data for the first full day of processing now, and we have tested 35 million grids. We are using hyper-threading, running 24 workers on 16 cores, and the net effect appears to be close to a 20-core system. With the 280 core-day estimate that would translate to roughly 14 days for the whole job.

Some snapshots of progress for the first 24 hours:

Code: Select all
08:40:25: Start
13:42:05: Jobs complete =   69, i/p =  16, NGT =   6979931, NF =   9763  (0.140%)   5h
14:41:06: Jobs complete =   88, i/p =  20, NGT =   8815525, NF =  10425  (0.118%)   6h
16:45:55: Jobs complete =  124, i/p =  24, NGT =  12581337, NF =  12388  (0.098%)   8h
17:42:00: Jobs complete =  142, i/p =  24, NGT =  14273465, NF =  13378  (0.094%)
18:41:04: Jobs complete =  162, i/p =  24, NGT =  16072711, NF =  14560  (0.091%)
20:40:38: Jobs complete =  193, i/p =  24, NGT =  19820132, NF =  16294  (0.082%)  12h
22:50:51: Jobs complete =  243, i/p =  24, NGT =  23585231, NF =  17564  (0.074%)
00:52:35: Jobs complete =  267, i/p =  24, NGT =  26091727, NF =  19999  (0.077%)  16h
06:40:04: Jobs complete =  336, i/p =  24, NGT =  33198587, NF =  30312  (0.091%) 
08:42:08: Jobs complete =  359, i/p =  24, NGT =  35310171, NF =  37053  (0.105%)  24h

NGT is the total # of grids tested, NF the total "failures" (No 19C).

As you can see, we might have done better had we started with 24 workers, but I wanted to observe Jack's performance/running temperature, etc just to be sure everything was shipshape (and it was! Jack remained cool and whisper-quiet all the way!)

The % of fails drops steadily for some time, then kicks up again, and this corresponds to the point at which we started on bands 32 and 33. So no surprise there - if you look closely you will see there is a corresponding decrease in overall grid-test rates.

And this translates to varying "total job time" estimate predictions, all in excess of the theoretical 14 days. 16 days (based on 1st 12 hour period), 20 (the second 12 hours), 18 for the full 24 hour period.
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LCT-19X

Postby Mathimagics » Tue Oct 29, 2019 10:59 pm

After 48 hours, LCT-19X has:

  • tested 66,537,837 grids
  • found 68,250 grids with No 19C

==================================
For coloin:
Attachments
Harvest.zip
(65.04 KiB) Downloaded 17 times
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Re: Low/Hi Clue Thresholds

Postby coloin » Thu Oct 31, 2019 3:05 pm

Great progress
So the super computor will indeed deliver the 20C grids ....in a couple of weeks !.
And from the peudo-random 19Cs which I have many batches will probably tend to give even more pseudo-random 18Cs ! - maybe most ways that you make 18C puzzles you will tend to generate the non-remote puzzles.
At any rate the workers are on the case !!!!
The big file of 18C which is a closed group of around 1 Billion - and probably we will get most of them in the end with a blunderbust {-1+1} with the gen18c
As dobrichev says a +2 but keeping the same pattern can be pretty efficient and this may give us a source of remote puzzles.

I have numerous collections of {-2+2} 18C which may well be good in terms of yield too
So we will see how the yield changes with time , hopefully identyfing the new puzzles [ if this is possible - not easy !] and {-1+1} will extend the collection

total number of 18C by subset analysis by Afmob with only a 2% error
Code: Select all
Computation time: 31x17 days

1,310,492 samples
1,310,492 size 3 subsets
    4,386 valid minimal puzzles

+----+-------+------------+----------------+
| Cl | Count | E(nr/grid) | E(rel err)*100 |
+----+-------+------------+----------------+
| 18 |  4386 |  3.499e-01 |      2.177e+00 |

so 0.35 x 5.47e9 = 1.91 x 10 ^9 18C puzzles total

The master blue did the analysis on 100,000 random grids we should marvel at again
Hidden Text: Show
Code: Select all
ED puzzles |   grids
-----------+--------
         0 |   82306
         1 |   10876
         2 |    3359
         3 |    1483
         4 |     698
         5 |     421
         6 |     235
         7 |     169
         8 |     109
         9 |      83
        10 |      63
        11 |      34
        12 |      40
        13 |      18
        14 |      25
        15 |      14
        16 |      11
        17 |       6
        18 |       6
        19 |       6
        20 |       3
        21 |       5
        22 |       4
        23 |       1
        25 |       2
        26 |       2
        27 |       3
        28 |       1
        30 |       1
        31 |       3
        32 |       1
        34 |       2
        44 |       1
        45 |       2
        46 |       1
        52 |       1
        70 |       1
        75 |       1
        82 |       1
        87 |       1
       152 |       1
-----------+--------
           |  100000  grid samples
           | - 82306  ("no 18" count)
           +--------
           | = 17694  "grids with an 18" samples

These are some of the results that can be calculated, based on the hidden table: (with 95% confidence levels for the error estimates)
Code: Select all
    Avg. Puzzles per grid:  0.3534 +/- 0.0086
    Total puzzles        : (1.9340 +/- 0.0468) * 10^9

    Probablility(grid has 18):  (17.69 +/- 0.24)%
    Total grids with an 18   : (0.9683 +/- 0.0129) * 10^9

    Avg. Puzzles per "grid with an 18":  1.9972 +/- 0.0403


This agrees with Afmob's work above from here
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LCT-19X

Postby Mathimagics » Fri Nov 01, 2019 1:26 am

@coloin: thanks for the interesting 18C wrap above.

I am currently in process of the comparing 3 different Gen18C morphing methods for "efficiency" ... and hopefully we will have a good harvest from your retained 19C batch files when you return from your (completely unauthorised) Mauritius holiday ... 8-)

LCT-19X Progress

Day 4: after 96 hours, LCT-19X has:

  • tested 139,594,274 grids
  • found 91,642 grids with No 19C

Daily grid counts are ~36 million, with day 2 being the only exception (31.5 milion), and that was spent entirely on band 33, which we now know has an unusually high number of "No 19C" grids.

The overall rate of "No 19C"'s has steadily declined since band 33 was completed. It has declined from 0.098% to 0.066% since day 2.

No significant change to total job time estimates, still 17 - 18 days. So ETA remains Nov 14-15.
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LCT-19X Progress

Postby Mathimagics » Sun Nov 03, 2019 12:46 pm

LCT-19X Progress

Day 6.5: after 156 hours, LCT-19X has:

  • tested 223,487,592 grids (35.66%)
  • found 147,556 grids with No 19C (0.66%)

Extrapolating, the projection for total "No 19C" grids would be ~413,795.

ETA remains Nov 14-15.

LCT-18 Testing

A remarkable grid was uncovered while testing 18C puzzle generation methods. This grid has no 17C, but has a rather astonishing number of 18C puzzles (154):
Code: Select all
123456789456789123798132564275943816361278495984615372519367248637824951842591637


List of 18C puzzles: Show
Code: Select all
..........5.7.9..3.......64...9..8...61........4..........6..4..3.82....8..5.....
.......8..5.7.9..........642...4..1.3....8...9.........1..6......7...9.......1.3.
.....6...4......2....1........9..8.6.61...4......1.....1..........8.49....2....37
.....6...4......23...1........9..8...61...4....4.......1...........24.5.8...9..3.
.....6...4......23...1........9..8...61...4....4...3...1...........24.5.8...9....
.....6.8....7...2.........4....4.....61......9...1.3...1..........8..95..425.....
.....67.........2....1....4...9..8...61........4......5......4.....24.518...9....
.....67..4......2....1.......59..8...61...4........................24.5184..9....
.....67..4......2....1.......59..8...61...4.......................82..5184..9....
.....67..4......2....1.......59..8...61..84........................2..5184..9....
....5......6...1..7...32..4...9.....3.......5...6...7.51..........8..9...4..9....
....5...94..7.....7......6...5........1.....5...6...7......7.4863..2......2......
...4..78...6...1........5..........6..1.7.....8..1...2....67....3..2....84.......
...4.6.........12.......5...7......6..12..........5.7....3.72..6...2....84.......
...4.6.........12.......5...7......6..12.........1.3.....3.72..6...2....84.......
...4.6.........12.......5...7...3..6..12.........1.......3.72..6...2....84.......
...4.6.........12.7.....5....5.....6..12............7....3.72..6...2....84.......
...4.6.8.......1..7......6.2..........1.....5...6.5.7......72...3..2.....4....6..
...4.67..4......2....1.......59..8...61...4........................2..5184..9....
...45......6...1......32......9..8..3.......5...6......19....4...7.2..5........3.
...45......6...1......325.....9..8..3.......5...6......19....4...7.2...........3.
...45......6...12.....3..6....9..8..3..2....5..........19.6..4...7.............3.
..3..........8.1..7.......4.....3....6.....9.98...5.7..1..6...........5.....9..37
..3..........8.1..7.......4.....3....6.....9.98..15....1..6...........5.....9..37
..3..........8.1..7.......4.....3....6....49.98...5....1..6...........5.....9..37
..3..........8.1..7.......4.....3....6..7..9.98...5....1..6...........5.....9..37
..3..........8.1..7.......4....43....6.....9.98...5....1..6..........95........37
..3..........8.1..7.......4....43....6.2...9.98........1..6..........95........37
..3..........8.1..7.......4...9.3....6.....9..8..15....19.6...........5........37
..3..........8.1..7.......4...9.3....6....49..8...5....1..6..........95........37
..3..........8.1..7.......4...9.3....61...4...8...5....1..6..........95........37
..3..........8.1..7.......4...9.3....61...4...8...5....19.6...........5........37
..3..........8.1..7....2........3....6....49.98...5....1..6...........5.....9..37
..3..........8.1..7....2......9.3....61...4...8...5....19.6...........5........37
..3..........8.1..79............3....6....49.98...5....1..6...........5.....9..37
..3..........8.1..79..........9.3....6....49..8...5....1..6...........5...2....37
..3..........8.1..79..........9.3....6....49..8...5....1..6..........95........37
..3..........8.1..79..........9.3....61...4...8...5....1..6...........5...2....37
..3..........8.1..79..........9.3....61...4...8...5....1..6..........95........37
..3..........8.1..79..........9.3....61...4...8...5....19.6...........5........37
..3..........8.1..79..........94....3.......5.8.61.....19.6...........5........37
..3......4......2....1...6....9..8...61...4.....6..3...1...7.......24...8...9....
..3......4......2....1...6....9..8..3.1...4.5...6..3...19..7.......24............
..3......4......2....1..56....94.8...61..8.........3...1..6........24...8........
..3......4......2....1..56....94.8...61.7..........3...1..6........24...8........
..3......4...8..2....1..56....94.8...61............3...1..6........24...8........
..3......4.6....2....1...6....9..8..3.......5..4.......1..6...8....24...8.......7
..3......4.6....2....1...6....9..8..3.....4.5...6..3...19..7.......24............
..3.....9....8.1..7.............3....6....49.98...5....1..6...........5.....9..37
..3.....9....8.1..7.............3..6.6....4...8...5....1..6...........5...2.9..37
..3.....9....8.1..7...........9.3....6....4...8...5....1..6...........5...2.9..37
..3.....9....8.1..7...........9.3....6....4...8...5....1..6..........95...2....37
..3.....9....8.1..7...........9.3....6....4...8...5....1..6..........95.8......37
..3.....9....8.1..7...........9.3....6....4...8...5....1..6........2..5...2....37
..3.....9....8.1..7...........9.3....6....4...8...5....1..6......7....5...2....37
..3.....9....8.1..7...........9.3....6....4...8...5....1..6.2.........5...2....37
..3.....9....8.1..7...........9.3....6....4...8...5....1..67..........5...2....37
..3.....9....8.1..7...........9.3....6....4...8...5....19.6...........5.......637
..3.....9....8.1..7...........9.3....6....4...8...5....19.6...........5......1.37
..3.....9....8.1..7...........9.3....6....4...8...5....19.6...........5.....9..37
..3.....9....8.1..7...........9.3....6....4...8...5....19.6...........5...2....37
..3.....9....8.1..7...........9.3....6....4...8...5....19.6..........95........37
..3.....9....8.1..7...........9.3....6....4...8...5....19.6........2..5........37
..3.....9....8.1..7...........9.3....6....4...8...5....19.6....6......5........37
..3.....9....8.1..7...........9.3....6....4...8...5...51..6..........95........37
..3.....9....8.1..7...........9.3....6....4...8...5.7..1..6..........95........37
..3.....9....8.1..7...........9.3....6....4...8..15....1..6..........95........37
..3.....9....8.1..7...........9.3....6....4...8..15....19.6...........5........37
..3.....9....8.1..7...........9.3....6....4...84..5....19.6...........5........37
..3.....9....8.1..7...........9.3....6....4..98...5....1..6...........5.....9..37
..3.....9....8.1..7...........9.3....6....4..98...5....1..6..........95........37
..3.....9....8.1..7...........9.3....6....4..98...5....1..6........2..5........37
..3.....9....8.1..7...........9.3....6....49..8...5....1..6..........95........37
..3.....9....8.1..7...........9.3....6..7.4...8...5....1..6..........95........37
..3.....9....8.1..7...........9.3....6.2..4...8...5....19.6...........5........37
..3.....9....8.1..7...........9.3....61...4...8...5....1..6..........95........37
..3.....9....8.1..7...........9.3....61...4...8...5....19.6...........5........37
..3.....9....8.1..7...........943....6....4...8...5....19.6...........5........37
..3.....9....8.1..7..........59.3....6....4...8...5....1..6..........95........37
..3.....9....8.1..7........2..9.3....6....4...8...5....1..6..........95........37
..3.....9....8.1..7........2..9.3....6....4...8...5....1..6.2.........5........37
..3.....9....8.1..7........2..9.3....6....4...8...5....19.6...........5........37
..3.....9....8.1..7....2......9.3....6....4...8...5....1..6...........5...2....37
..3.....9....8.1..7..1........9.3....6....4...8...5....1..6..........95........37
..3.....9....8.1..7.8.........9.3....6....4...8...5....1..6..........95........37
..3.....9..6.8.1..7...........9.3....6....4...8...5....19.6...........5........37
..3.....9.5.7............64............2.....9.4....7..1..6.2...3...4.5.....91...
..3.....9.5.7............64............2....59.4....7..1..6.2...3...4.......91...
..3.....94...8.1..7...........9.3....6....4...8...5....19.6...........5........37
..3....89....8.1..7...........9.3....6....4...8...5....1..6..........95........37
..3...7......8.1..7.......4.....3....6.....9.98...5....1..6...........5.....9..37
..3..6.........12....1....4..59..8...6.........4.......1.....4.....24.5.8...9....
..3..6...4......2....1.........43....6......598........1......8....24...8.....6.7
..3..6...4......2....1....4...94.81..6...........1.3...1...7.......2....8.....6..
..3..6...4......2....1...6....9..8...6....4........3...1..67.......24.5.8........
..3..6...4......2....1...6....9..8...6....4........3...19.6........24.5.8........
..3..6...4......2....1...6....9..8...6....4.....6..3...19..........24.5.8........
..3..6...4......2....1...6.2..9..8...6......5....1.3...19.....8....24............
..3..6...4......2....1...64...94.8...61............3...1...7.......2....8...9....
..3..6.8.4...........1...6..759......6....4..........2.1...........249..8...9....
..3..67..4......2....1...6....9..8...6....4........3...1..6........24.5.8........
..3.5....4......2....1...64...9..8...61..8.........3...1..6........24...8........
..3.5....4......2....1...64...9..8...61.7..........3...1...........24...8...9....
..3.5....4......2....1...64...9..8...61.7..........3...1..6........24...8........
..3.5....4...8..2....1...64...9..8...61............3...1..6........24...8........
..3.5...9....8.1..7...........9.3....6.2..4...8........19.6...........5........37
..34............2....1...64...9..8...6.............3...1..6......7.2.95.84.......
..34............2....1...64...9..8...6.............3...1..6....6...2.95.84.......
..34............2....1...64...9..8...6.............3...1..67...6...2..5.84.......
..34.......6....2....1...64...9..8...6.............3...1..6........2.95.84.......
..34.......6....2....1...64...9..8...6.............3...1..67.......2..5.84.......
..34.....4......2....1..56....9..8...61..8.........3...1..6........24...8........
..34.....4......2....1..56....9..8...61.7..........3...1..6........24...8........
..34.....4...8..2....1..56....9..8...61............3...1..6........24...8........
..34....9....8.1..7...........9.3....6....4...8...5....1..6..........95........37
.2..........7....3.98..........4....3.......5.8..1...25......4....8..9....25.1...
.2..5....4....91........5..........63.1..8........5.72..9.6...8....2....8........
.23..........8.1..7.............3....6....49.98...5....1..6...........5.....9..37
.23..........8.1..7...........9.3....61...4...8...5....19.6...........5........37
1.........5...9..........64....4....3..2...9.9..6...7.....67..8........1.42......
1........4..7.9.2......25......4.....6.....9..8.61........67..8........1..2......
1.....7.....7...23.98........5.............95..461..............3..2.......5.16..
1....6..........2....1....4...9..8...6.....9...4.1....5.9..........24..18......3.
1....6....5.....23......5..2...4...6...2...........37....3.....6.7.....1...59....
1....6....5...9..........64....4....3..2...9.9......7.....67..8........1.42......
1....6...4......2.......5.....94..1..6.2...9..8..1.........7..8....2...1..2......
1....6...4......2.......5.....943.1..6........8..1............8....249....2..1...
1....6...4......2.......5....59..8...6.2.........1......9..7..8.....49.1..2......
1....6...4......2.......56....94.....6.2...9..8..1.........7..8....2...1..2......
1....6...4......2......25.....94..1..6.....9..8..1.........7..8....2...1..2......
1....6...4......2......256....94.....6.....9..8..1.........7..8....2...1..2......
1....6...4......2.....3......59..8...6.2..4.............9..........2..5184...1...
1....6...4......2.....3.5.....9...1..6...8....84..............8....249....2..1...
1....6...4......2.....3.5.....9..81..6.........4........9.....8....249....2..1...
1....6...4......2.....3.5.....9..81..6.........4.......1......8...8.49....2..1...
1....6...4......2.....3.5.....9..81..6........84..............8....249....2..1...
1....6...4......2.....3.5....594.8...6.....9............9..........24..18....1...
1....6...4......2.....32.....59..8...6....4.............9..........2..5184...1...
1....6...4......2....1..5.....94.....6.....9..8..1.........7..8....24..1..2......
1....6...4......2....1..5.....94.....6.2...9..8..1.........7..8....2...1..2......
1....6...4......2....1..5.4...94.....6.....9..8..1.........7..8....2...1..2......
1....6...4......2....1.25.....94.....6.....9..8..1.........7..8....2...1..2......
1....6...4.....12.......5.....94.....6.2...9..8..1.........7..8....2...1..2......
1....6...4.....12......25.....94.....6.....9..8..1.........7..8....2...1..2......
1....6...4..7...2......25.....94.....6.....9..8..1.........7..8........1..2.9....
1....67...5...9..3.....2...2...4........7...59.4.1..........24..3.............6..
1....67..4......2.......5.....94..1..6........8..1............8....249....2..1...
1...5......6.....3........4.....3.16.....8...9.4....72....6..4..3..2....8........
1...5...9..6................7.9.3.1......8..5..4.....2....6..4..3..2....8......3.
1...56..........23...1....4...9..8...6.........4.......1....2......2.95.84.......
1..4.6...4......2....1..5.....94.....6.....9..8..1.........7..8....2...1..2......
1.3.....9....8.1..7...........9.3....6....4...8...5....1..6..........95........37
12....7.......9.....81.....27..4.........8.95...........9....486...2...........3.
12...6...4......2....1..5.....94.....6.....9..8..1.........7..8....2...1..2......
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LCT-19X Progress

Postby Mathimagics » Tue Nov 05, 2019 10:56 pm

Halfway there!!

Day 9: after 216 hours, LCT-19X has:

  • tested 318,979,582 grids (50.9%)
  • found 176,134 grids with No 19C (0.55%)

Extrapolating, the projection for total "No 19C" grids would be ~346,068.

ETA remains Nov 14-15.
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Re: Low/Hi Clue Thresholds

Postby coloin » Thu Nov 07, 2019 2:10 pm

Great progress..... and noting that the projection is decreasing based on your processing bands systematically.
blue did predict on random grids it would be in the 234-280K range. On course for that perhaps then.
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Re: Low/Hi Clue Thresholds

Postby Mathimagics » Thu Nov 07, 2019 5:04 pm

Indeed! blue's sampling predictions correspond to a range of 0.38% - 0.45%.

Currently running at 0.54% (with 61% of the job done) and slowly decreasing ...
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Re: Low/Hi Clue Thresholds

Postby blue » Thu Nov 07, 2019 5:45 pm

FWIW: After another 15 million samples, my revised estimate is 250-281K
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