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Search: Posts Made By: SethTro
Forum: Lone Mersenne Hunters 2020-06-05, 22:23
Replies: 50
Views: 7,855
Posted By SethTro
Semi Related I posted a patch...

Semi Related I posted a patch (https://www.mersenneforum.org/showthread.php?p=540022#post540022) to mprime that allows you to easily view the important information (B1, B2, percent complete...) from...
Forum: Information & Answers 2020-05-18, 04:43
Replies: 79
Views: 5,512
Posted By SethTro
I updated the code so that it only prints the...

I updated the code so that it only prints the best proof write after the NF / Factor line.

This doesn't work with checkpointing but I'm not worried about that till this gets larger adoption.
Forum: Information & Answers 2020-05-14, 00:37
Replies: 79
Views: 5,512
Posted By SethTro
Sorry I missed these messages, I strongly rely on...

Sorry I missed these messages, I strongly rely on MF emails (I get a kick out of "You will probably never see this message because it will end up in your spam folder.") and seem to have missed theses...
Forum: GPU Computing 2020-05-09, 22:17
Replies: 3,293
Views: 274,043
Posted By SethTro
I have some knowledge here (I found one of the...

I have some knowledge here (I found one of the factors of 110393069).

It's really easy to detect if a factor is composite because all factors are of the form (2*k*p+1) so if the factor is...
Forum: Information & Answers 2020-05-09, 12:20
Replies: 79
Views: 5,512
Posted By SethTro
These are all done now. I ran ~50 exponents...

These are all done now.

I ran ~50 exponents (5M to 250M) over several bitranges (58-60, 60-62, 65-67, 70-71) and verified ~458 proof statements (currently more than one can be generated per...
Forum: Information & Answers 2020-05-08, 22:04
Replies: 79
Views: 5,512
Posted By SethTro
I plan to do a test run over a large range of...

I plan to do a test run over a large range of exponent at TF=65,70,75 this weekend.

Right now the code outputs multiple proofs per <exponent,bit-level>, I think the server should keep <user, exp,...
Forum: Information & Answers 2020-05-08, 21:00
Replies: 79
Views: 5,512
Posted By SethTro
Absolutely; The code is at...

Absolutely; The code is at https://github.com/sethtroisi/mfaktc/tree/proof and you can build it in the standard way.

If you use linux and cuda 10.1 I can provide a binary if you can't compile it...
Forum: Information & Answers 2020-05-08, 20:34
Replies: 79
Views: 5,512
Posted By SethTro
I agree with the first sentence. I think the...

I agree with the first sentence.
I think the 2nd sentence is missing an "are" (between "things for more") and I agree doubling with that, I've been thinking about if this could be adopted to P-1 or...
Forum: Prime Gap Searches 2020-05-08, 20:20
Replies: 28
Views: 3,942
Posted By SethTro
Just regular primes. I don't think it would be...

Just regular primes. I don't think it would be very hard to store other prime gaps.

There are ~100k prime gaps, can you tell me the relative magnitude of other records? How many twin prime gaps?...
Forum: Information & Answers 2020-05-03, 10:17
Replies: 79
Views: 5,512
Posted By SethTro
I change the definition of "smallest" to be the...

I change the definition of "smallest" to be the most trailing zeros and only compute the full residual when the low word is all zero (rare but still happens several times per ghz-day).

I like...
Forum: Information & Answers 2020-05-03, 08:23
Replies: 79
Views: 5,512
Posted By SethTro
This assumes that mfaktc always computes the...

This assumes that mfaktc always computes the residual. which it does not; mfaktc notices when the lower bits of the residual are not zero and doesn't calculate the upper bits so 90%+ of the time the...
Forum: Information & Answers 2020-05-03, 07:48
Replies: 79
Views: 5,512
Posted By SethTro
I cleaned up some debug code and measured impact...

I cleaned up some debug code and measured impact over the last 24 hours (13 DC TF)

Impact is ~0.4% for adding my new code on DC exponents evaluated with kernel barrett76_mul32_gs
...
Forum: Information & Answers 2020-05-02, 21:49
Replies: 79
Views: 5,512
Posted By SethTro
I'm the only person working on this and I haven't...

I'm the only person working on this and I haven't focused on optimizing code, that can happen after people have been convinced this is worth doing, which has proved to be an uphill struggle.

...
Forum: Information & Answers 2020-05-02, 00:16
Replies: 79
Views: 5,512
Posted By SethTro
my proposal sits at the very end of the GPU...

my proposal sits at the very end of the GPU compute so it allows us to verify the GPU is correctly computing pow(2, P, test) and not making math errors.

Additionally residuals are randomly...
Forum: Information & Answers 2020-05-01, 21:53
Replies: 79
Views: 5,512
Posted By SethTro
I took a look at the code again. ...

I took a look at the code again.
https://github.com/sethtroisi/mfaktc/tree/proof

For the smaller kernels in mfaktc you have access to the residual, for the larger kernels the residual is not...
Forum: Information & Answers 2020-05-01, 20:11
Replies: 79
Views: 5,512
Posted By SethTro
I worked on this for like a month but there...

I worked on this for like a month but there wasn't interest from other people.

It's ~80% done
* I modified mfaktc to return one of the smaller residuals it found.
* I output the new proof of...
Forum: Information & Answers 2020-04-29, 00:05
Replies: 79
Views: 5,512
Posted By SethTro
I think this is a good line of reasoning. A...

I think this is a good line of reasoning.

A suspect some small percent of TF results were never run because manually created NO_FACTOR results including a larger bitrange were submitted (e.g. a NF...
Forum: Information & Answers 2020-04-28, 23:57
Replies: 79
Views: 5,512
Posted By SethTro
I looked up the post that I had basing that...

I looked up the post that I had basing that number on and I have incorrectly recalled it as having a percentage which it doesn't.
https://www.mersenneforum.org/showthread.php?t=24994
Forum: Information & Answers 2020-04-28, 18:28
Replies: 79
Views: 5,512
Posted By SethTro
Luckily there are some GPU programmers here! I...

Luckily there are some GPU programmers here! I coded up my proposal (https://www.mersenneforum.org/showpost.php?p=520512&postcount=199) and see less than a 5% performance impact (I measured 2-3% over...
Forum: Cunningham Tables 2020-04-26, 08:36
Replies: 127
Views: 14,247
Posted By SethTro
I updated the server, sorry I was late to joining...

I updated the server, sorry I was late to joining this effort and getting it graphed.

I'm excited about other efforts MF might be doing this year.
Forum: Cunningham Tables 2020-04-25, 10:10
Replies: 127
Views: 14,247
Posted By SethTro
I started the server running, I haven't made an...

I started the server running, I haven't made an attempt to merge sieve1/sieve2.

http://factoring.cloudygo.com/2_1165+.c217/

It's also not clear what the relation target is (so I guessed 700e6)
Forum: Cunningham Tables 2020-04-22, 23:27
Replies: 127
Views: 14,247
Posted By SethTro
I finally finished some other work (trying to...

I finally finished some other work (trying to help automate prime gap reporting) and joined with a couple of clients.

VBCurtis: Do you mind if I add/track this effort on...
Forum: Factoring 2020-03-26, 19:06
Replies: 418
Views: 34,677
Posted By SethTro
I wrote a little script that pulls from factorDB...

I wrote a little script that pulls from factorDB and processes the results to some nice tables.
I don't update it very often but it has the status of all home primes base 10 2-5000 from yesterday
...
Forum: Prime Gap Searches 2020-03-20, 09:19
Replies: 28
Views: 3,942
Posted By SethTro
We can do something like that. I'll add an email...

We can do something like that. I'll add an email handler to the server so that any new contributor is hand reviewed (this also makes sense given they will need a new line in the credit table)

I'm...
Forum: Prime Gap Searches 2020-03-19, 23:24
Replies: 28
Views: 3,942
Posted By SethTro
@robert44444uk @MJansen Graham gave me the...

@robert44444uk @MJansen

Graham gave me the power to commit records to the official GitHub repository (i have currently been submitting them to my personal copy), I asked a week ago...
Showing results 1 to 25 of 155

 
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