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Search: Posts Made By: gLauss
Forum: mersenne.ca 2021-04-28, 15:17
Replies: 620
Sticky: mersenne.ca
Views: 73,590
Posted By gLauss
Don't worry. I have tried to write a Python...

Don't worry. I have tried to write a Python script which would consider all the P-1, TF and ECM information available for a given exponent and then decide what is best next, but it is very hard to...
Forum: mersenne.ca 2021-04-28, 14:56
Replies: 620
Sticky: mersenne.ca
Views: 73,590
Posted By gLauss
Based on my gutfeeling (which is similiar to...

Based on my gutfeeling (which is similiar to George (https://mersenneforum.org/showpost.php?p=577072&postcount=247)'s gutfeeling), you should do the following:

1) If there is already some ECM...
Forum: Software 2021-04-27, 14:32
Replies: 291
Views: 23,410
Posted By gLauss
Yes, this should be fixed. I have mentioned this...

Yes, this should be fixed. I have mentioned this in post #188 (https://mersenneforum.org/showpost.php?p=576609&postcount=188), too.

I am wondering what the optimal P-1/P+1/ECM strategy is and what...
Forum: Software 2021-04-23, 13:28
Replies: 291
Views: 23,410
Posted By gLauss
This might be because I did some very small...

This might be because I did some very small (B1=100000) PP1 test for this exponent already yesterday. Started at exponents above 123000 and moved on a few exponents. Does anyone know which B1 is...
Forum: Software 2021-04-22, 17:13
Replies: 291
Views: 23,410
Posted By gLauss
Not sure if it is stupid what I'm doing (it most...

Not sure if it is stupid what I'm doing (it most probably is), but I'm getting stuck for an unreasonable amount of time in the "initializing step" for stage 2 and the CPU is only used a few percent...
Forum: Lone Mersenne Hunters 2021-04-15, 18:55
Replies: 1,858
Views: 223,579
Posted By gLauss
Finally, after hundreds of attempts (and...

Finally, after hundreds of attempts (and thousands of curves) found my first factor with ECM :smile: Even if it is only 71bits, it shows that it is possible! 3255283
Forum: Lone Mersenne Hunters 2021-02-05, 16:09
Replies: 1,858
Views: 223,579
Posted By gLauss
You are right. I'm confused, too. I don't have...

You are right. I'm confused, too. I don't have the line from results.txt anymore, but mersenne.ca (https://www.mersenne.ca/exponent/70553939) definitely tells me that it was found with e=12. I can't...
Forum: Lone Mersenne Hunters 2021-02-05, 13:28
Replies: 1,858
Views: 223,579
Posted By gLauss
Thanks, that was in fact my stupid mistake: Now...

Thanks, that was in fact my stupid mistake: Now it works:

factor_of_k=195509617
B2=13222500
e=12
for primorial in [30,210,2310]:
for i in range(0,B2//primorial+1):
# test 2310*k +...
Forum: Lone Mersenne Hunters 2021-02-05, 11:33
Replies: 1,858
Views: 223,579
Posted By gLauss
Yes, it did. I tried to understand why this large...

Yes, it did. I tried to understand why this large factor 195509617 of k for my factor of M70553939 (https://www.mersenne.ca/exponent/70553939) has been found with e=12 Brent-Suyama and a B2 of only...
Forum: Cloud Computing 2021-01-27, 09:51
Replies: 20
Views: 1,515
Posted By gLauss
Yes, but I was comparing "spot" prices to my...

Yes, but I was comparing "spot" prices to my power costs and still twice as much as I pay for my power. Don't forget all those virtualization AWS does has overhead, too. The most ridiculous...
Forum: PrimeNet 2021-01-27, 09:29
Replies: 2
Views: 383
Posted By gLauss
Ok, this was not obvious to me. I always assumed...

Ok, this was not obvious to me. I always assumed it would calculate 3^{\frac{2^n-1}{p}} \text{ mod } \frac{2^n-1}{p} instead (assuming p is one or more factor). Then the residues would be different.
Forum: Lone Mersenne Hunters 2021-01-27, 08:16
Replies: 1,858
Views: 223,579
Posted By gLauss
I used mprime and the residue B786DF1732AE7343 is...

I used mprime and the residue B786DF1732AE7343 is the one which mprime reported in the results.json.txt. I filed a bug in the Primenet section (https://mersenneforum.org/showthread.php?t=26448).
Forum: PrimeNet 2021-01-27, 08:14
Replies: 2
Views: 383
Posted By gLauss
C-PRP residue identical with different factors

Hi, yesterday I did just for fun a P-1 test for the small, already factored number M3331331 (https://www.mersenne.org/report_exponent/?exp_lo=3331331&full=1). This number had one known factor and two...
Forum: Lone Mersenne Hunters 2021-01-27, 07:43
Replies: 1,858
Views: 223,579
Posted By gLauss
I found a very easy one (randomly selected a nice...

I found a very easy one (randomly selected a nice number and spent <1 GhzD effort) in M3331331 yesterday, but the number was factored previously: mersenne.ca (http://mersenne.ca/M3331331), Primenet...
Forum: Cloud Computing 2021-01-27, 07:35
Replies: 20
Views: 1,515
Posted By gLauss
AWS is too expensive (for me)

I have done some experimenting with AWS (and tested a DC number), but even in Germany with high power costs (30ct/kWh) it is usually cheaper to run it on the hardware one already owns if you have the...
Forum: Software 2021-01-25, 19:42
Replies: 291
Views: 23,410
Posted By gLauss
P

The auto calculation of the P-1 bound does not work for numbers with known factors. Example line in worktodo: Pminus1=N/A,1,2,3333313,-1,500000,0,68,220665927262967Example Output (note that it is...
Forum: PrimeNet 2020-11-10, 15:13
Replies: 95
Views: 21,564
Posted By gLauss
Thanks, this is the information I was looking...

Thanks, this is the information I was looking for. So I will do reservations with AIDs from now on. I didn't do this until now, because I think I have read somewhere that reserving AID for small TF...
Forum: PrimeNet 2020-11-10, 14:38
Replies: 95
Views: 21,564
Posted By gLauss
I'm running Linux and the bash script took me at...

I'm running Linux and the bash script took me at most 1 hour, writing the script was not the problem. The problem is that there is no way for me to know what SRBase is up to because they don't get...
Forum: PrimeNet 2020-11-10, 14:19
Replies: 95
Views: 21,564
Posted By gLauss
Poaching when Trial Factoring

Hi,
I have a pretty crappy GPU in my laptop, but at least I can run mfaktc on it, when my laptop is running and connected to the power. This will contribute quite irregularly, sometimes, there might...
Forum: Lone Mersenne Hunters 2020-10-20, 20:18
Replies: 13
Views: 10,104
Posted By gLauss
Hihi, thanks for that! My laptop GPU is too...

Hihi, thanks for that! My laptop GPU is too crappy for this bitlevels. However, I assume your chances for success are quite low because of the large P-1 and the ECM curves I already ran. I won't...
Forum: Lone Mersenne Hunters 2020-10-19, 19:20
Replies: 13
Views: 10,104
Posted By gLauss
I know. If you take a look, I did put more total...

I know. If you take a look, I did put more total effort into B1=250k curves than B1=50k. However, I ran only a few of them. According to the report_ecm...
Forum: Lone Mersenne Hunters 2020-10-19, 15:28
Replies: 13
Views: 10,104
Posted By gLauss
This stupid number doesn't want to reveal its...

This stupid number doesn't want to reveal its factors, so my quest will stop after a lot of TF and P-1 and half of t25.
Forum: mersenne.ca 2020-10-15, 20:26
Replies: 620
Sticky: mersenne.ca
Views: 73,590
Posted By gLauss
Yes, but it doesn't show up on the top right in...

Yes, but it doesn't show up on the top right in "Latest Primenet details". It isn't important, but to me it looks like a bug. And I assume there are not many numbers which have both LL/DC and PRP, so...
Forum: mersenne.ca 2020-10-15, 18:55
Replies: 620
Sticky: mersenne.ca
Views: 73,590
Posted By gLauss
PRP for exponent not shown

M20825573 (https://www.mersenne.ca/exponent/20825573) does not show my (unnecessary) PRP run, which I reported a few days ago. There seems to be a bug. Please compare the output of mersenne.ca with...
Forum: Math 2020-10-07, 12:49
Replies: 1
Views: 1,308
Posted By gLauss
P-1 factor probability distribution given n, B1 and B2 bounds

I want to calculate how likely a potential factors in a given bitrange will be missed by P-1, given B1, B2 and n. For ECM, I can get this information from here...
Showing results 1 to 25 of 30

 
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