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Search: Posts Made By: Ensigm
Forum: Marin's Mersenne-aries 2020-12-07, 00:45
Replies: 12
Views: 1,000
Posted By Ensigm
correction: manually checking in results will...

correction: manually checking in results will also unreserve the exponents (as long as they are reserved as PFactor, not TF or something else), so there's no need to unreserve them again.
Forum: Marin's Mersenne-aries 2020-12-05, 10:29
Replies: 12
Views: 1,000
Posted By Ensigm
Aha, I figured out I can register them as PFactor...

Aha, I figured out I can register them as PFactor instead of PMinus1. How could I never have thought about this!

Now the process is close to fully automatable. I can reserve them as PFactor, and...
Forum: Marin's Mersenne-aries 2020-12-05, 10:05
Replies: 12
Views: 1,000
Posted By Ensigm
For me using mprime on linux, manually...

For me using mprime on linux, manually communicating with the server gives error like
My worktodo.txt is something like
Pminus1=1,2,56447197,-1,1870000,50000000,74
Forum: PrimeNet 2020-12-05, 08:37
Replies: 6
Views: 1,068
Posted By Ensigm
I'm not using windows so I'm not sure about the...

I'm not using windows so I'm not sure about the problem, but maybe it has something to do with the ManualComm=0? I understand what the other two options do but not this one.
Forum: Marin's Mersenne-aries 2020-12-05, 08:24
Replies: 12
Views: 1,000
Posted By Ensigm
Could you explain this part in a little more...

Could you explain this part in a little more detail?
Forum: Marin's Mersenne-aries 2020-12-05, 05:23
Replies: 12
Views: 1,000
Posted By Ensigm
Could you tell me how you were able to register...

Could you tell me how you were able to register them as P-1? I never succeeded in doing so, and thus I always reserved them as TF.
Forum: Lone Mersenne Hunters 2020-12-05, 04:54
Replies: 80
Views: 24,180
Posted By Ensigm
Report for the second half of 56 M...

Report for the second half of 56 M (B1=B2≤700,000): 2 factors found out of 35 attemps (5.71%). Expected prob. 3.93%~3.94%.

Now intending to work on the exponents in the first half of 57 M that has...
Forum: PrimeNet 2020-12-03, 06:42
Replies: 129
Views: 11,104
Posted By Ensigm
Down sides: Additional assignment rules...

Down sides:


Additional assignment rules with little effect on overall primality progress

Up sides:


More factors found
Forum: PrimeNet 2020-12-03, 06:21
Replies: 129
Views: 11,104
Posted By Ensigm
If an exponent doesn't already have a P-1 done on...

If an exponent doesn't already have a P-1 done on it by the time it is assigned as FTC, then the person receiving the FTC assignment will normally do a P-1 on it anyway.

The problem is that some...
Forum: Software 2020-11-29, 16:50
Replies: 526
Views: 63,406
Posted By Ensigm
Benchmarking for P-1

I wonder if anyone else is also interested in the P-1 benchmarks I posted here (https://www.mersenneforum.org/showpost.php?p=564685&postcount=831). I believe this could mean we can potentially...
Forum: Hardware 2020-11-28, 16:40
Replies: 847
Views: 147,914
Posted By Ensigm
Benchmarking for P-1 Stage 2

I observe that the FFT implementation that has the best performance in benchmark is usually the best at P-1 stage 1, but not always so at P-1 stage 2.

For example, on a certain single-core cpu,...
Forum: Puzzles 2020-11-27, 16:19
Replies: 34
Views: 2,277
Posted By Ensigm
I can only marvel at these.

I can only marvel at these.
Forum: Puzzles 2020-11-25, 21:19
Replies: 34
Views: 2,277
Posted By Ensigm
Aha, I didn't realize the two answers are...

Aha, I didn't realize the two answers are essentially the same until now.

In saying "smooth" I was making a pun about the fact that the answer makes good use of the 7-smoothness of 2016.
Forum: Puzzles 2020-11-25, 19:52
Replies: 34
Views: 2,277
Posted By Ensigm
** means ^——I was using python as my calculator,...

** means ^——I was using python as my calculator, as many would have guessed it.

Written with ^, my answer would be
Forum: Puzzles 2020-11-25, 19:48
Replies: 34
Views: 2,277
Posted By Ensigm
((666+666)/666)**(13-(13+13)/13)-13-13-(666+666)/6...

((666+666)/666)**(13-(13+13)/13)-13-13-(666+666)/666


6 each.
Forum: Puzzles 2020-11-25, 19:37
Replies: 34
Views: 2,277
Posted By Ensigm
The second one is really a smooth answer!

The second one is really a smooth answer!
Forum: PrimeNet 2020-11-24, 13:49
Replies: 1
Views: 686
Posted By Ensigm
Does anyone know of a way to do it?

Does anyone know of a way to do it?
Forum: Lone Mersenne Hunters 2020-11-24, 13:38
Replies: 80
Views: 24,180
Posted By Ensigm
Now intending to work on the exponents in the...

Now intending to work on the exponents in the second half of 56 M that has B1=B2≤700,000 and without a DC.
As most of the exponents will be in Cat 3 and higher, I will reserve every exponent as TF...
Forum: Lone Mersenne Hunters 2020-11-22, 16:18
Replies: 80
Views: 24,180
Posted By Ensigm
Previous ranges 54.5 M (B1=B2≤730,000) and the...

Previous ranges 54.5 M (B1=B2≤730,000) and the second half of 55 M (B1=B2≤690,000) should now be finished and I am "unreserving" them.

Report for range 54.4 M (B1=B2≤730,000): 0 factors found in...
Forum: GPU to 72 2020-11-22, 13:01
Replies: 279
Views: 37,027
Posted By Ensigm
I believe it has something to do with the time in...

I believe it has something to do with the time in a day. 22:00-01:00 GMT might give you a better chance to catch a GPU, especially a T4.
Forum: Software 2020-11-21, 14:30
Replies: 2
Views: 716
Posted By Ensigm
The benchmark result seems to be unreproducible...

The benchmark result seems to be unreproducible and may be due to just "jittering". Another benchmark on the same model (not the same CPU though) shows Pass1=768, Pass2=4096, clm=1 as better than...
Forum: Lone Mersenne Hunters 2020-11-20, 23:48
Replies: 1,797
Views: 188,895
Posted By Ensigm
Impressive! Really hope I can get a fat composite...

Impressive! Really hope I can get a fat composite factor someday too. (If the probability of a factor within a set of P-1 bounds is independent of the presence of another factor, then that day...
Forum: Data 2020-11-20, 18:59
Replies: 347
Views: 49,386
Posted By Ensigm
From my experience, adding NoMoreWork=1 in...

From my experience, adding NoMoreWork=1 in prime.txt might prevent this from happening again.
Forum: Software 2020-11-20, 18:44
Replies: 2
Views: 716
Posted By Ensigm
Information about the cpu (result of !lscpu) ...

Information about the cpu (result of !lscpu)
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1...
Forum: Software 2020-11-20, 18:37
Replies: 2
Views: 716
Posted By Ensigm
mprime: (slightly) worse performance when utilizing benchmark results

I ran some benchmark on Google colab, hoping that it will improve throughput by helping to choose the best fft implementation. It turns out the one performs the best in benchmark isn't the best one...
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