Welcome to the project to produce tons of greenhouse gases in the service of abstract mathematics, also known as the PrimeGrid Earth Day Challenge! This month we're searching for large primes of the form 3*2^N±1.
What you need:
What won't help (but won't hurt either):
This challenge starts April 22, which happens to be Earth Day, and continues for eight days to April 30. Work not downloaded and uploaded within the challenge will not be counted. Should you not be able to be in front of one or more computers at that time, just set their queue level very low (0.01 days). This also makes it more likely that you will be a prime finder rather than a double-checker. Or see the challenge strategy thread for other ways to start and finish on time.
By the way, the irony of this challenge's name has not been lost on the project administrators. If, like me, you're concerned about climate change and the effect your computers have on it, check out the Earth Day discussion thread. If you're not...well, we can take that discussion over to P&N - but you have no excuse not to crunch, now do you? 😀
Regardless of your political views, welcome and good luck! 🙂
Edit: It's come to my attention that almost half the TeAm has at least one computer that's produced invalid work recently. Please check whether any of your computers is in this list!
What you need:
- One or more fast x86 processors. (Even slow ones might do some work!)
- All of those processors running stably. One good way to check that is to run PPS or SGS LLR for a few days. If you get any errors, your processor probably isn't stable at your current clock/voltage.
- Windows, Linux, or MacOS 10.4+. (All OSes should be equal in speed.)
- BOINC, attached to PrimeGrid (http://www.primegrid.com/).
- Your PrimeGrid Preferences with only "321 Prime Search (LLR)" selected in the Projects section.
- Patience! These are long WUs. (Not as long as Seventeen or Bust, but several hours long each.) The race is also long.
What won't help (but won't hurt either):
- A 64-bit OS. (But if it's Linux, type "sudo apt-get install ia32-libs".)
- A large amount of RAM.
- Any video cards.
This challenge starts April 22, which happens to be Earth Day, and continues for eight days to April 30. Work not downloaded and uploaded within the challenge will not be counted. Should you not be able to be in front of one or more computers at that time, just set their queue level very low (0.01 days). This also makes it more likely that you will be a prime finder rather than a double-checker. Or see the challenge strategy thread for other ways to start and finish on time.
By the way, the irony of this challenge's name has not been lost on the project administrators. If, like me, you're concerned about climate change and the effect your computers have on it, check out the Earth Day discussion thread. If you're not...well, we can take that discussion over to P&N - but you have no excuse not to crunch, now do you? 😀
Regardless of your political views, welcome and good luck! 🙂
Edit: It's come to my attention that almost half the TeAm has at least one computer that's produced invalid work recently. Please check whether any of your computers is in this list!
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