mfakto: an OpenCL program for Mersenne prefactoring

[NormanRKN]

yes with the 13.8 beta i cant do nothing.
at selftest you will see a drivercrash.
( i hate ati/amd drivers all ) grrrrrrrrrr

[kracker]

Originally Posted by NormanRKN

yes with the 13.8 beta i cant do nothing.
at selftest you will see a drivercrash.
( i hate ati/amd drivers all ) grrrrrrrrrr

Well, they *are* beta. Might want to roll back as I

[NormanRKN]

yes, beta is relativ ;)
i switched back to the olders.

[Jayder]

I'm a little confused by this error message:

got assignment: exp=4027913 bit_min=63 bit_max=64 (0.46 GHz-days)
WARNING: SievePrimes is too big for the current assignment, lowering to 284998
         It is not allowed to sieve primes which are equal or bigger than the
         exponent itself!

How was the new limit of 284998 calculated? Note the exponent = 4027913. I had attempted to do a SP of 1000000.

[axn]

Originally Posted by Jayder

I'm a little confused by this error message:

got assignment: exp=4027913 bit_min=63 bit_max=64 (0.46 GHz-days)
WARNING: SievePrimes is too big for the current assignment, lowering to 284998
         It is not allowed to sieve primes which are equal or bigger than the
         exponent itself!

How was the new limit of 284998 calculated? Note the exponent = 4027913. I had attempted to do a SP of 1000000.

#primes < 4027913 = 284999. I guess, it is excluding 2 as well, hence 284998.

[Jayder]

Oh, duh. I was just interpreting the error message in the stupidest way possible.

Thanks for the quick response.

[TeknoHog]

I hacked up something for the automatic assignment handling, as I could not find anything else that worked. It's not perfect, but works for me:

https://github.com/teknohog/primetools

Oh, and thanks for all the great work on mfakto :)

[kracker]

Originally Posted by TeknoHog

I hacked up something for the automatic assignment handling, as I could not find anything else that worked. It's not perfect, but works for me:

https://github.com/teknohog/primetools

Oh, and thanks for all the great work on mfakto :)

Interesting. So is this a python script for submitting results?

P.S.: You might want to check out misfit.

[TeknoHog]

Originally Posted by kracker

So is this a python script for submitting results?

P.S.: You might want to check out misfit.

Wow, I didn't know about misfit, but it wouldn't really help me anyway as I use Linux. Mine is just a command-line Python script.

[TeknoHog]

Originally Posted by kracker

Just a note that, on catalyst 13.8 beta mfakto does not run at all,at selftest the driver crashes and I have to hard reset.

Just noticed the same on 13.8_beta2 that came with the latest Gentoo updates. It crashed upon restarting mfakto, when the old drivers were still running

EDIT: downgraded to 13.6_beta while running 13.8_beta2, and mfakto runs just fine again...

[Bdot]

Originally Posted by TeknoHog

I hacked up something for the automatic assignment handling, as I could not find anything else that worked. It's not perfect, but works for me:

https://github.com/teknohog/primetools

Oh, and thanks for all the great work on mfakto :)

Hi,

I just had a quick look over your script, and I'm quite interested in using it as I'm running a number of Linux machines too.

I'd like to refer you to this post where I briefly explained the file locking that mfakto uses for worktodo and results files. (details in filelocking.c ) This should help for directly accessing the files while mfakto is running.

Regarding the latest driver issue, I think I need to report this to AMD ... .