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-   -   mtsieve (https://www.mersenneforum.org/showthread.php?t=23042)

rogue 2018-09-26 13:10

[QUOTE=pepi37;496813]And last
If sieve passed 54105949591 ( or very close up to this value) then will be no output and program just terminate.
If sieve depth is lower then that value, program gives output as should do.[/QUOTE]

What inputs did you use? Similar to fbncsieve, it will stop sieving at sqrt(k*b^n) as terms above that value are prime.

pepi37 2018-09-26 14:49

[QUOTE=rogue;496822]What inputs did you use? Similar to fbncsieve, it will stop sieving at sqrt(k*b^n) as terms above that value are prime.[/QUOTE]

I test same with newpgen and he continue to sieve, so that i not problem

rogue 2018-09-26 16:18

[QUOTE=pepi37;496832]I test same with newpgen and he continue to sieve, so that i not problem[/QUOTE]

Please provide me the command line options you are using and an input files.

pepi37 2018-09-26 17:23

[QUOTE=rogue;496839]Please provide me the command line options you are using and an input files.[/QUOTE]
twinsieve -P600000000000 -i1.npg -o11.npg -Ofactor.txt -fN


Also look at problem with -r option when you got insane number of factors

rogue 2018-09-26 17:53

[QUOTE=pepi37;496840]twinsieve -P600000000000 -i1.npg -o11.npg -Ofactor.txt -fN

Also look at problem with -r option when you got insane number of factors[/QUOTE]

I need the file 1.npg.

pepi37 2018-09-26 20:45

[QUOTE=rogue;496844]I need the file 1.npg.[/QUOTE]
Create with
twinsieve -P100000000 -k2 -K100000 -b2 -n1778899 -fN -r
then result rename to 1.npg :)


Just increase first value to 100000000000 and you got all problems you need: there is no output file ( if you do test on Newpgen ( or TwinGenX then you still got output with 67 candidates left)
Your twinsieve will produce no output,.
Try this

twinsieve -P100000000000 -k2 -K100000 -W4 -b2 -n1778899 -fN -r


P.S

I cannot see twinsieve in makefile


[I]PROGS=afsieve mfsieve gfndsieve fbncsieve fkbnsieve pixsieve xyyxsieve cksieve kbbsieve gcwsieve psieve[/I]

ET_ 2018-09-27 13:09

Still no hope to have a MMpsieve working in the near future, isn't it? :smile:

rogue 2018-09-27 13:14

[QUOTE=ET_;496903]Still no hope to have a MMpsieve working in the near future, isn't it? :smile:[/QUOTE]

Sorry, I've been busy, but now that you have nudged me, I can spend some time on it. I need to fix the issues with twinsieve first.

ET_ 2018-09-27 13:30

[QUOTE=rogue;496904]Sorry, I've been busy, but now that you have nudged me, I can spend some time on it. I need to fix the issues with twinsieve first.[/QUOTE]

Sure, no hurry and maximum collaboration. Thanks!

Dylan14 2018-09-29 11:57

It looks like I found another bug in pixsieve. It seems to stop shortly after p=24068943967, which is well short of 2^52:


[CODE]C:\Users\Dylan\Desktop\prime finding\sieves\mtsieve>pixsieve -W 12 -w 10000 -P29e9 -i e_100k-1M_primecan.txt -o e_100k-1M_primecan.txt
pixsieve v2.5, a program to find factors of substrings of a decimal string
Sieve started: 24000000131 < p < 29e9 with 21189 terms (100015 <= length <= 999966) (expecting 166 factors)
p=24068943967, 3.942K p/sec, 0 factors found, 1.4% done. ETC 2018-09-29 22:24
C:\Users\Dylan\Desktop\prime finding\sieves\mtsieve>[/CODE]
This behavior persists regardless of whether I use the GPU or not:


[CODE]C:\Users\Dylan\Desktop\prime finding\sieves\mtsieve>pixsieve -G 1 -D 1 -P29e9 -i e_100k-1M_primecan.txt -o e_100k-1M_primecan.txt
pixsieve v2.5, a program to find factors of substrings of a decimal string
GPU primes per worker is 61440
Sieve started: 24000000131 < p < 29e9 with 21189 terms (100015 <= length <= 999966) (expecting 166 factors)
p=24067958093, 8.058K p/sec, 0 factors found, 1.4% done. ETC 2018-09-29 12:51
C:\Users\Dylan\Desktop\prime finding\sieves\mtsieve>[/CODE]

rogue 2018-09-29 12:24

[QUOTE=Dylan14;497056]It looks like I found another bug in pixsieve. It seems to stop shortly after p=24068943967, which is well short of 2^52:


[CODE]C:\Users\Dylan\Desktop\prime finding\sieves\mtsieve>pixsieve -W 12 -w 10000 -P29e9 -i e_100k-1M_primecan.txt -o e_100k-1M_primecan.txt
pixsieve v2.5, a program to find factors of substrings of a decimal string
Sieve started: 24000000131 < p < 29e9 with 21189 terms (100015 <= length <= 999966) (expecting 166 factors)
p=24068943967, 3.942K p/sec, 0 factors found, 1.4% done. ETC 2018-09-29 22:24
C:\Users\Dylan\Desktop\prime finding\sieves\mtsieve>[/CODE]
This behavior persists regardless of whether I use the GPU or not:


[CODE]C:\Users\Dylan\Desktop\prime finding\sieves\mtsieve>pixsieve -G 1 -D 1 -P29e9 -i e_100k-1M_primecan.txt -o e_100k-1M_primecan.txt
pixsieve v2.5, a program to find factors of substrings of a decimal string
GPU primes per worker is 61440
Sieve started: 24000000131 < p < 29e9 with 21189 terms (100015 <= length <= 999966) (expecting 166 factors)
p=24067958093, 8.058K p/sec, 0 factors found, 1.4% done. ETC 2018-09-29 12:51
C:\Users\Dylan\Desktop\prime finding\sieves\mtsieve>[/CODE][/QUOTE]

IF this is from the latest release, then I know the problem and it will be fixed. I introduced a bug in mtsieve 1.8.0


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