(1)First, as all projects need an account to keep track of your individual progress, you have to create an account, but the catch in this project is that everything is ran from the forums, so first of all you should go to the Marsenne forums and register yourself:
http://www.mersenneforum.org/register.php?
(The marsenne forums host subsections for plenty on Maths projects, including PSP)
Now that you got your registration done, you better bookmark the PSP forums, as you will have to go there regularly:
http://www.mersenneforum.org/forumdisplay.php?f=48
(2)On the PSP forums, you can join a team by leaving a post on their sticky thread called "Teams : Join a Team". You just go there and post "Please join me on <team name>" and the admins will take in account that all your results will benefit that team.
Tip: Always join AMD Users ;)
Back on the PSP forums you'll see a sticky thread called "Sieve:- Pick A Range". Click on it to make the reservation of a range to sieve. (Same as a workunit to crunch but you get to select the size you want)
(3)To reserve a range you only have to post on that thread asking the range you want. Here's a typical example of a request
And the project admins thank you if you reserve the lower ranges possible. Here's an example list of reserved ranges:13200-13250 reserved by vaughan
Unless other ranges were already reserved in posts below, the best range you could select would start at 13300. So for example to reserve a range of 100G you would just have to post on that thread something like:13150-13200 reserved by NeoGen
13200-13250 reserved by vaughan
13250-13300 reserved by magnav0x
"13300-13400 reserved by <your_nickname>"
So now you claimed your workunit, what to do with it? To crunch your workunit you'll need two files.
(4)The first file you need is the application - Proth Sieve (download here)
The zip file contains compiled versions for each OS/CPU type. Use the one that most suits you. The best one is always the one with SSE2 support, if your cpu only supports SSE, then use the CMOV application... and if you have an older machine, then your last (and slowest) solution is the regular one with no optimizations
The second file is required for the sieving - sob50m.dat (download here)
Just download and extract it into the proth sieve folder.
So now you've got your registration done, your workunit claimed, it's time to get to work!
(5)Just click twice on proth sieve to start it, a command line window should appear asking what is the range to sieve. Here you insert the range you claimed at the forums.
Using the example numbers from above, when it asks you "Sieve from" you insert "13300" and click Enter. And then it'll ask you "Sieve to" and you insert "13400" and click Enter again.
(You will insert your own reserved range's values. Not these example ones)
And that is that. Now you only have to wait until it finishes.
If you need to shutdown the computer, you can close the command line application. When you restart, proth sieve will continue from where it left off.
(6)Once finished, do as instructed in the range reservations thread:
And don't forget to post on the range reservations thread once more to announce that you finished the range. Just post something like "13300-13400 finished by <your_nickname>"Result submission:
Please send fact.txt and if you have factrange.txt to: psp"at"ldausch.de
(Of course, post with your range numbers, not these example ones)
Clear the folder of all files other than the proth sieve application and sob.dat, reserve another range and repeat the process again.
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Originally Posted by 72CJ5
