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Forum: XYYXF Project 2020-11-18, 12:46
Replies: 423
Views: 45,764
Posted By pxp
I have examined all Leyland numbers in the four...

I have examined all Leyland numbers in the four gaps between L(222748,3) <106278>, #1986, and L(45405,286) <111532> and found 80 new primes. That makes L(45405,286) #2070.

That was interval #17....
Forum: XYYXF Project 2020-11-08, 04:05
Replies: 423
Views: 45,764
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(147999,10) <148000> and L(148999,10) <149000> and found 11 new primes.
Forum: XYYXF Project 2020-11-04, 15:12
Replies: 423
Views: 45,764
Posted By pxp
Thanks for the heads-up. Occasionally my internet...

Thanks for the heads-up. Occasionally my internet service provider changes the number of my IP address. This happens rarely but without notice and since I access chesswanks.com...
Forum: XYYXF Project 2020-10-22, 08:51
Replies: 423
Views: 45,764
Posted By pxp
I finished that run up to 500000 and then decided...

I finished that run up to 500000 and then decided to do from there to 10^6. I sieved that file to 10^12 resulting in 1309 candidates (http://chesswanks.com/num/L(x,10).txt). The durations total to...
Forum: XYYXF Project 2020-10-19, 15:03
Replies: 423
Views: 45,764
Posted By pxp
It's actually nice to see another name in the...

It's actually nice to see another name in the recents. I am still ten days away from discovering this one. Be sure to claim it on PRPTop so that they will be up-to-date.
Forum: XYYXF Project 2020-10-10, 07:07
Replies: 423
Views: 45,764
Posted By pxp
I have examined all Leyland numbers in the three...

I have examined all Leyland numbers in the three gaps between L(41507,322) <104094>, #1945, and L(222748,3) <106278> and found 38 new primes. That makes L(222748,3) #1986.
Forum: XYYXF Project 2020-10-09, 17:34
Replies: 423
Views: 45,764
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(148999,10) <149000> and L(149999,10) <150000> and found 14 new primes.
Forum: XYYXF Project 2020-10-06, 20:24
Replies: 38
Views: 4,400
Posted By pxp
As per my examples, when p = n has been reached,...

As per my examples, when p = n has been reached, I expect the output file to be sieved to n (and you have said that my expectation is correct). Instead, the program is saying p ~ 200000 but the...
Forum: XYYXF Project 2020-10-05, 16:22
Replies: 38
Views: 4,400
Posted By pxp
When p=3 and one has divided all initial...

When p=3 and one has divided all initial candidates by 3, one has sieved to 3. When p=5 and one has divided all remaining candidates by 5, one has sieved to 5. When p=7 and one has divided all...
Forum: XYYXF Project 2020-10-04, 23:10
Replies: 38
Views: 4,400
Posted By pxp
I am looking at this now. One of my runs was...

I am looking at this now. One of my runs was updated at 2:48 pm today: sieved to 11 (149.2 MB); then at 3:49 pm: sieved to 13 (142.2 MB); then at 4:50 pm: sieved to 13 (140.3 MB); then at 5:51 pm:...
Forum: XYYXF Project 2020-10-03, 21:43
Replies: 38
Views: 4,400
Posted By pxp
What I am going to do is multi-thread these runs...

What I am going to do is multi-thread these runs to -P1e9 and after several days just rescue (move elsewhere) whatever output file is there and then kill the run. Also, in the future, I think I will...
Forum: XYYXF Project 2020-10-03, 21:19
Replies: 38
Views: 4,400
Posted By pxp
I tried: mm4:rogue1 pxp$ ./xyyxsieve...

I tried:

mm4:rogue1 pxp$ ./xyyxsieve -i19.ini -o19.txt -w1e4 -p3 -P1e4
xyyxsieve v1.5, a program to find factors numbers of the form x^y+y^x
Sieve started: 3 < p < 1e4 with 17782120 terms (27440...
Forum: XYYXF Project 2020-10-03, 19:04
Replies: 38
Views: 4,400
Posted By pxp
According to the xyyxsieve help file the default...

According to the xyyxsieve help file the default for -w is 1e4, so that is what I have (unknowingly) been using. Trying 1e3 is "out of range". What is the point of larger -w arguments? I will guess...
Forum: XYYXF Project 2020-10-01, 21:15
Replies: 38
Views: 4,400
Posted By pxp
Unfortunately, this fix is no longer working well...

Unfortunately, this fix is no longer working well on my now much larger input files. The interruptions (after about a day of sieving) run into an error that has one or more workers not responding...
Forum: XYYXF Project 2020-10-01, 01:59
Replies: 423
Views: 45,764
Posted By pxp
I have examined all Leyland numbers in the gap...

I have examined all Leyland numbers in the gap between L(40945,328) <103013>, #1930, and L(41507,322) <104094> and found 14 new primes. That makes L(41507,322) #1945.
Forum: XYYXF Project 2020-09-27, 00:01
Replies: 423
Views: 45,764
Posted By pxp
Yes, if only I knew how to do that. Is it really...

Yes, if only I knew how to do that. Is it really that important? What does my warnings-ignored converted document (http://chesswanks.com/num/a094133.html) lack that a properly compiled conversion...
Forum: XYYXF Project 2020-09-25, 21:32
Replies: 423
Views: 45,764
Posted By pxp
Thank you. Fortunately I had written a note to...

Thank you. Fortunately I had written a note to myself from the last time I ran a .cpp program.

g++ xyyx.cpp -o xyyx

xyyx.cpp:60:56: warning: format specifies type 'unsigned long long *' but the...
Forum: XYYXF Project 2020-09-25, 20:03
Replies: 38
Views: 4,400
Posted By pxp
You are correct. By mid-October I will have...

You are correct. By mid-October I will have finished interval #16 which will guarantee x < 24000. To get to x < 25000 I will need to finish interval #17, which I haven't started yet. My current...
Forum: XYYXF Project 2020-09-20, 03:54
Replies: 423
Views: 45,764
Posted By pxp
I have examined all Leyland numbers in the ten...

I have examined all Leyland numbers in the ten gaps between L(37614,265) <91148>, #1735, and L(40210,287) <98832> and found 117 new primes. That makes L(40210,287) #1862 and advances the index to...
Forum: XYYXF Project 2020-09-06, 09:21
Replies: 423
Views: 45,764
Posted By pxp
I decided to take my sieving of interval #21 to...

I decided to take my sieving of interval #21 to 1e10 and that still has a couple of days to go. In the meantime I am pfgw-ing recently assigned (and already sieved) interval #28 [L(148999,10) -...
Forum: XYYXF Project 2020-08-26, 14:37
Replies: 38
Views: 4,400
Posted By pxp
I am seeing much earlier ETC dates on restarted...

I am seeing much earlier ETC dates on restarted interruptions. Perhaps a better guess than file size being the cause is multi-core implementation. As all of my sieves are run as a single process on a...
Forum: XYYXF Project 2020-08-26, 13:53
Replies: 38
Views: 4,400
Posted By pxp
After I restarted the interrupted run (using its...

After I restarted the interrupted run (using its output file as my new input) the program began with an ETC of September 1. That's quite a change from the previous mid-January 2021. Now those early...
Forum: XYYXF Project 2020-08-26, 06:03
Replies: 38
Views: 4,400
Posted By pxp
Thank you. As I had just finished interval #13, I...

Thank you. As I had just finished interval #13, I was going to have a run-off between the two versions. So I interrupted my running version, took a duplicated output file and removed the +1s for the...
Forum: XYYXF Project 2020-08-26, 05:06
Replies: 423
Views: 45,764
Posted By pxp
I have examined all Leyland numbers in the two...

I have examined all Leyland numbers in the two gaps between L(37738,243) <90029>, #1715, and L(38030,249) <91128> and found 17 new primes. That makes L(38030,249) #1734 and advances the index to...
Forum: XYYXF Project 2020-08-26, 00:47
Replies: 38
Views: 4,400
Posted By pxp
2020-08-12 22:17:06: Sieve started: 3 < p < 5e9...

2020-08-12 22:17:06: Sieve started: 3 < p < 5e9 with 7448612 terms (29963 <= x <= 453605, 2 <= y <= 30453) (expecting 7082193 factors). I am currently at p=418504277 with 7114884 factors found.
Showing results 1 to 25 of 182

 
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