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drummers-lowrise
1) Message boards : Number crunching : New Hardware (Message 135351)
Posted 4 days ago by Profile composite
On a trip to Geneva visiting friends, I visited CERN's science display/museum. I was standing beside a big hunk of mainframe and telling them how I used these in the old days, then turned around and to my astonishment on a tabletop under a plexiglas case Time Berner-Lee's Nextcube was right there, with a note saying this was the world's first web server.
2) Message boards : Number crunching : New Hardware (Message 135339)
Posted 5 days ago by Profile composite
EDIT: went looking for thermal paste and found two boxes of five and a quarter inch floppies.... lol.

It's probably behind that stack of eight inch floppies.


lol. they're 5.25 for my Apple //e! 8 inch.... I'm not that old!

But I am, lol. Maybe the bits have evaporated by now.
3) Message boards : Number crunching : New Hardware (Message 135319)
Posted 6 days ago by Profile composite
EDIT: went looking for thermal paste and found two boxes of five and a quarter inch floppies.... lol.

It's probably behind that stack of eight inch floppies.
4) Message boards : Generalized Fermat Prime Search : GFN-14 Consecutive Primes Hunt Season is open! (Message 135241)
Posted 9 days ago by Profile composite
Kellen wrote:
I was hoping that ... there would be some progressions that contained a significantly higher proportion of primes than others.

Absolutely, and there's a truly silly answer for this question!
The arithmetic progression of odd numbers contains a significantly larger proportion of primes that the arithmetic progression of even numbers.
The chance of an even number > 2 being prime is exactly 0, while the density of primes among odd numbers > 2 is approximately 1/(log n).
5) Message boards : Number crunching : Suggestions for 2020 Challenges (Message 135027)
Posted 21 days ago by Profile composite
Conjectures galore!

[OFFTOPIC RANT]
Zowie! I sense an existential crisis coming on at PrimeGrid...

Like, what are we doing blowing gazillions of CPU cycles and kilowatthours on a pursuit that has practically no real value?
Like, it used to mean something when the calculations necessarily were done by hand.
Like, now it means someone has an excessively padded wallet and a lack of imagination.
Like the pointless race for bitcon, the value derives from someone's obsession.

[size=small]
guilty
[/size]

[/OFFTOPIC RANT]
6) Message boards : Problems and Help : Completed and validated (1st) (Message 134974)
Posted 22 days ago by Profile composite
Referring to this (now locked) old thread:
http://www.primegrid.com/forum_thread.php?id=8024

It looks like about 1 in 20 of my "Completed and validated" tasks has the (1st) tag. E.g. in my "Genefer 15 v3.21 (OCLcudaGFN15)" tasks.
Do 20 people validate each task?
Or are newbie tasks biased towards validation?
Or is it some kind of race who finishes the task first?

Thanks

It's a race. It only matters who is first when a task happens to be testing a number that is prime. Then the 1st tag indicates who is acknowledged as the "prime finder".

The "prime finder" has certain benefits.
1) large enough primes are reported under that person's name in the Top 5000 Primes list (T5k).
2) megadigit primes earn the finder a megaprime counter badge (or badge increment).
3) certain special forms of primes have their own badge for the first one found of that form.

For example, have a look at the badges of the user Robish. Hover your mouse pointer over a badge for a pop-up text description of the badge.
7) Message boards : Number crunching : Top Badges Leader Board (Message 134952)
Posted 23 days ago by Profile composite
Is it something like this, you're suggesting?

https://stats.free-dc.org/subproj/pgrid/Generalized+Fermat+Prime+Search


Count the number of consecutive identical badges in that list, for each unique badge.
The totals omit individual participants and cumulative scores.

Since there's only 1 double-tuquoise GFN badge, it would be at the bottom of the list.
Sacrilege!
8) Message boards : Number crunching : Top Badges Leader Board (Message 134931)
Posted 24 days ago by Profile composite
Obviously I didn't put any thought into alternative interpretations of my request, hence the ambiguity.

My idea is to shed light on the global distribution of participant achievements,
rather than ranking individuals or groups of individuals on credits.

Example: there are X bronze PPS sieve badges and Y gold 321 LLR badges among all participants.
So X ranks higher than Y if X > Y.

People are welcome to offer alternatives which might be more interesting than my proposal.
9) Message boards : AP26 - AP27 Search : AP27 FOUND!!! (Message 134919)
Posted 24 days ago by Profile composite
I hope his luck doesn't run out.
He seems to breathe the stuff.
10) Message boards : Number crunching : Top Badges Leader Board (Message 134918)
Posted 24 days ago by Profile composite
I would like to see a new Leader Board for Top Badges, a summary listing the total number of each badge currently awarded among all participants. For instance we know that a silver badge supersedes a bronze badge, so when someone acquires a silver badge, the count of silver badges increases by one and the count of bronze badges decreases by one.

Since badges are awarded by subproject, it might make more sense to count badges grouped by colour and subproject, rather than just by colour.


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