GPU to 72 status...

[Xyzzy]

Forgive us for being a little slow, but how exactly do we set up MISFIT to provide what GIMPS needs the most?

We have attached a picture of the tab that we think is set up properly.

We assumed that there would be a button for "Let GPU72 Decide!" and then everything else would gray out, but the other options are still active. Or are they?

[Xyzzy]

Once an hour wouldn't cause Primenet any distress, and would probably help let it release lower candidates for LLing earlier.

Unless we are doing it wrong, which is very likely, we have observed that using the automatic upload feature has a minimum four hour interval, and since the scheduled tasks are limited to 60 events, they are limited to three hour intervals. (7*8=56)

[swl551]

Originally Posted by Xyzzy

Unless we are doing it wrong, which is very likely, we have observed that using the automatic upload feature has a minimum four hour interval, and since the scheduled tasks are limited to 60 events, they are limited to three hour intervals. (7*8=56)

You are not doing anything wrong. MISFIT is designed to prevent overly-aggresive uploaders from hammering GIMPS.

[Aramis Wyler]

There's what, 200 of us doing gpu trial factoring? If the primenet servers can't handle 150-200 hits per hour, we're in trouble. :)

Off topic though!
I try to do p-1 work on my cpu, and I TF exponents to 74 if they're above 60M as per James' chart. Thus I am confused why, when I go to get p-1 exponents with the highest TF factor, none come back that are factored above 73. What happens there?

[swl551]

Originally Posted by Aramis Wyler

There's what, 200 of us doing gpu trial factoring? If the primenet servers can't handle 150-200 hits per hour, we're in trouble. :)

I know its crazy: All the times the site was down or "could not process" or timed out or extremely slow.

[chalsall]

Originally Posted by Aramis Wyler

There's what, 200 of us doing gpu trial factoring? If the primenet servers can't handle 150-200 hits per hour, we're in trouble. :)

Indeed. While Scott has done a great job of providing Windows users a way of auto-fetching and auto-submitting results, he's not deeply aware of Primenet's behavior.

If each worker submits once an hour it will not be a problem.

Originally Posted by Aramis Wyler

Off topic though!
I try to do p-1 work on my cpu, and I TF exponents to 74 if they're above 60M as per James' chart. Thus I am confused why, when I go to get p-1 exponents with the highest TF factor, none come back that are factored above 73. What happens there?

The TFing and P-1 work is decoupled.

GPU72 keeps 500 of the lowest candidates TFed to at least 73 bits in the cache for P-1'ing.

If you TF to 74, but there are more than 500 candidates at 73 below, those at 74 will be released back to Priimenet to manage as it deems appropriate.

[Aramis Wyler]

Ah, I see. The server chooses the lowest candidates for p-1'ing. I can see how that would make sense.

Do you think it makes more sense than queing up the 500 most Tf'd candidates? Maybe I am wrong in thinking that the highest TF'd candidates are the best ones for p-1 work.

[Dubslow]

Originally Posted by Aramis Wyler

Ah, I see. The server chooses the lowest candidates for p-1'ing. I can see how that would make sense.

Do you think it makes more sense than queing up the 500 most Tf'd candidates? Maybe I am wrong in thinking that the highest TF'd candidates are the best ones for p-1 work.

If were were ahead of the wavefront and thus able to be picky about the order in which we do them, then arguably yes you are correct.

However, since P-1 is so desperately behind the wavefront, the lower it is, the more likely it is to complete the LL test without P-1 at all; so we do lowest first.

[Aramis Wyler]

Does that imply that primenet offers up lowest number first, not highest factored first to p95?

[chalsall]

Originally Posted by Dubslow

However, since P-1 is so desperately behind the wavefront, the lower it is, the more likely it is to complete the LL test without P-1 at all; so we do lowest first.

Indeed.

There are already 7 candidates in the 59M range, and 38 in the 60M range, which have had a LL completed without a P-1 done.

Also, "Spidy" is most efficient at simply reserving the lowest candidates without a P-1 done, since that's what Primenet offers first.

[chalsall]

Originally Posted by Aramis Wyler

Does that imply that primenet offers up lowest number first, not highest factored first to p95?

Correct.