This section is where you can post topics related to Challenges from other websites, such as Formula-BOINC, SETI-Germany and BOINCstats, as well as project challenges such as from WCG, PrimeGrid et al.
As a Team, we really want to engage as many team members with these challenges, as this gives us a great way of attracting more members to our Team...plus we get to show our strengths as a Team by (hopefully) doing well in each one.
PS: I have moved lots of topics into this section where they are relevant...as you can see, we've always been happy to take part in Challenges...and long may that continue
You do realise that PPS-Sieve [Proth Prime Search Sieve] is different to PPS [Proth Prime Search LLR]?
Sieve apps have always paid the most credit as they are not *directly looking for Primes.
To gain a badge for TDP you need to find a 5K Prime, which means running GFR16 or above (GPUs), or one of the larger CPU apps such as PPSE or PPS.
If you want to max out on credit, personally I think you should run either GFR-22 or GFR-DYFL on your GPUs (due to the bonuses), and the sieve apps such as PPS-Sieve on your CPUs (if you have large core count processors).
Last edited by chriscambridge on Fri Feb 08, 2019 11:10 pm, edited 1 time in total.
chriscambridge wrote: ↑Fri Feb 08, 2019 11:07 pm
You do realise that PPS-Sieve [Proth Prime Search Sieve] is different to PPS [Proth Prime Search LLR]?
Sieve apps have always paid the most credit as they are not *directly looking for Primes.
Hi Chris
oops - nope, didn't realise
chriscambridge wrote: ↑Fri Feb 08, 2019 11:07 pm
To gain a badge for TDP you need to find a 5K Prime, which means running GNFR16 or above (GPUs), or one of the larger CPU apps such as PPSE or PPS.
I'm not wanting a badge myself, but if the Sieve tasks don't qualify for this challenge then I either need to switch strategies, or just keep on with this and maybe gain some points on the Marathon
Well I've completed and had validated six of the DYFL tasks (two of them first ) and I still haven't found the worlds largest prime number, I'm disappointed
Still got four pending and six in progress but with them taking three days (on a GPU!) and the mountain stage coming up, I'm going to switch back to GFN-16 to see if I can find at least one prime this month and get a badge.
I was interested to see that the power the root number was raised to at 65536 is the exact value normally accepted as 64K.
Is that of some significance to the way these Primes are calculated?
I hate to break this to you.. but you double-checked a Prime as you came 2nd (wingman); well done though as it took me over 16K returns to achieve one of these. I would maybe play the lottery this week if I were you!
Jeffers wrote: ↑Mon Feb 11, 2019 4:38 pm
I was interested to see that the power the root number was raised to at 65536 is the exact value normally accepted as 64K.
Is that of some significance to the way these Primes are calculated?
The numbers are classed as Generalized Fermat Numbers and the power term is always a power of two
All the sub projects of this type just use a different power of two
GFN-15 is using numbers of the form b^(2^15) + 1 = b^32768 + 1
GFN-16 is using numbers of the form b^(2^16) + 1 = b^65536 + 1
etc up to
GFN-22 using numbers of the form b^(2^22) + 1 = b^4194304 + 1
chriscambridge wrote: ↑Mon Feb 11, 2019 4:54 pm
I hate to break this to you.. but you double-checked a Prime as you came 2nd (wingman); well done though as it took me over 16K returns to achieve one of these. I would maybe play the lottery this week if I were you!
Hi Chris
I was actually sent the exact same task, abt 5 mins after the 1st person.
So, if he had been a bit slower returning his completed task, then I would have been 1st. (But his work buffer might be shorter, plus he has a GTX2070 vs my GTX970...so, the chances are that I'll always complete tasks later than others with small caches and better GPUs).
I am not really sure how the PG processing works; I think they may be some info at their website.
Well done to you
Whether either will count in this Challenge or not, it's good to know our PCs have done something good and that these Primes may never have been found before (apart from the respective wingmen).
Well I had another DYFL validate ... still no new primes though
Quietly optimistic though as I've managed to finish half of my DYFL tasks before my wingman so if just one of the future ones is prime, then I've found the biggest prime number ever!