problem running 64-bit Linux version

[ssybesma]

Originally Posted by Prime95

Before you get to deep into testing, do Advanced/Time on your 332xxxxxx exponent for 100 iterations. That will give you an estimate of how long this will primality test will take. I fear an Atom processor will take more than a decade.

Should you decide to continue *please* do a PRP test, not an LL test.

Gosh I hope that's not right, but I'll go ahead and do what you said.

I may have to stick to the smaller primes with these Intel Compute Sticks.

[chalsall]

Originally Posted by ssybesma

Gosh I hope that's not right, but I'll go ahead and do what you said. I may have to stick to the smaller primes with these Intel Compute Sticks.

It might be reasonable to presume that the author of the code you're running would understand its characteristics....

[nomead]

Originally Posted by ssybesma

Gosh I hope that's not right, but I'll go ahead and do what you said.

I may have to stick to the smaller primes with these Intel Compute Sticks.

Based on the information in the earlier thread, it's a 4-core 4-thread Atom. As a reference, my D2550 (2-core 4-thread) Atom takes 2.6 seconds per iteration, using both cores for the single worker, at the 18M fft size used on those 332xxxxxx-class exponents. I'd expect yours to be about double as fast. So that would be roughly 13.7 years to complete just one primality test. Do you feel lucky?

[ssybesma]

Originally Posted by nomead

Based on the information in the earlier thread, it's a 4-core 4-thread Atom. As a reference, my D2550 (2-core 4-thread) Atom takes 2.6 seconds per iteration, using both cores for the single worker, at the 18M fft size used on those 332xxxxxx-class exponents. I'd expect yours to be about double as fast. So that would be roughly 13.7 years to complete just one primality test. Do you feel lucky?

I believe I told Prime95 I would follow his instruction.

[ssybesma]

Originally Posted by Prime95

Before you get to deep into testing, do Advanced/Time on your 332xxxxxx exponent for 100 iterations. That will give you an estimate of how long this will primality test will take. I fear an Atom processor will take more than a decade.

Should you decide to continue *please* do a PRP test, not an LL test.

Hello Prime95,

I took your advice and am restricting the Intel Compute Stick to the lowest available exponents and as a
result it's going to take a small fraction of the time of the 332xxxxxx exponent I was initially going to test.

It just completed 2% after three days and some of that time I had it down for other stuff I was doing with it.

I would like to know how to keep the 60 day extensions from resetting to zero.
Is there a file I can edit that will prevent the extensions from being wiped out?
Or do I have to keep manually extending?


Thanks!