[QUOTE=kladner;288517]From that, I would ask about the relative priorities of P-1 v TF. Granted, one runs on the CPU and the other on the GPU. But isn't there a chance that TF has at least as much need as P-1? At one point the GPU to 72 assignment page for P-1 stated that exponents factored to less than 72 might be reassigned for more TF.[/QUOTE]

I would argue that, where possible, P-1 should be done after TFing to 72 because it's [URL="http://www.gpu72.com/reports/factoring_cost/p-1/"]"cheaper"[/URL], both from the persective of cost per run and cost per factor found.

However, the truth is the project has garnered so much P-1 firepower (much to my surprise) that the TFing hasn't been able to keep up with the P-1'ing, and so many are currently doing P-1 on candidates only TFed to 71 (and, for some workers who change the range limits, only 70).

[QUOTE=flashjh;288520]Now for my original reply... I think we all do that. Especially considering what's involved with G272... afterall manually getting the assignments and working with non-GUI isn't exactly simple.[/QUOTE]

Indeed. And towards that end I've been working on a PrimeNet API for G72 to allow automatic assignments for the P-1, DC and LL work types. Once Bdot has implemented the file locking mechanism, a spider can be created to automate the DCTF and LLTF work types as well.

Again, never send a human to do a machine's job... :smile:

[QUOTE=flashjh;288520]We'll do what we can... I think that if exponents get released before P-1 that we 'may' get another chance at them, is that correct?[/QUOTE]

Yes, that is correct. However, we have not had to release any candidates without P-1 done for over six weeks.

I think we actually may end up with enough P-1 fire power to do that work as well by the time we need to. Over the last 30 days we've averaged 82.4 P-1 completions per day, and this is also increasing every week.

[QUOTE=Dubslow;288523]Philosophical musings and jokes aside (I can't compete there) there were ~250 (and still around ~220) available at 52M TFd up to 72. Why would you go with higher expos and less TF?

"Originally Posted by [B]Dubslow[/B] [URL="http://www.mersenneforum.org/showthread.php?p=287937#post287937"][IMG]http://www.mersenneforum.org/images/buttons/viewpost.gif[/IMG][/URL]
[I]Edit2: Also, we're going to need a LOT more P-1 firepower... in the upper ranges, most of them haven't had it. See esp. 58-59M on the Available TF report."

I wanted to see what you were on about. It's not like it's a long term commitment.
[/I]

[QUOTE=flashjh;288531]Can v27 do 64 bit yet?[/QUOTE]That's the problem, and why I'm still using v26.6 on my SB-E. I'll be happy to switch over once George finishes his 64-bit modifications.

[QUOTE=chalsall;288544]I would argue that, where possible, P-1 should be done after TFing to 72 because it's [URL="http://www.gpu72.com/reports/factoring_cost/p-1/"]"cheaper"[/URL], both from the persective of cost per run and cost per factor found.

However, the truth is the project has garnered so much P-1 firepower (much to my surprise) that the TFing hasn't been able to keep up with the P-1'ing, and so many are currently doing P-1 on candidates only TFed to 71 (and, for some workers who change the range limits, only 70).[/QUOTE]

Thanks, chalsall. I appreciate your take on things as it makes it easier to sort out the many views expressed on these subjects.

EDIT: I actually traded those 58's in for 51's and 52's, anyway.

Originally Posted by [B]flashjh[/B] [URL="http://www.mersenneforum.org/showthread.php?p=288531#post288531"][IMG]http://www.mersenneforum.org/images/buttons/viewpost.gif[/IMG][/URL]
[I]Can v27 do 64 bit yet?
[/I]


[QUOTE=James Heinrich;288547]That's the problem, and why I'm still using v26.6 on my SB-E. I'll be happy to switch over once George finishes his 64-bit modifications.[/QUOTE]

I'm looking forward to that "sub-version", too. ;)

GPU to 72 is #2 and #3
 

in Team factoring and P-1

ok... i'm gonna cry...
factored up to 2^72
M54929293 has a factor 8627989904271520875047 (72.87 bits)
k=233*751*9007*49831, found in stage-1, b1=545000

Aw crap
 

So much for trying to fight for #3.

One of my PC's (w/ HD5870) was crashed the entire weekend, so I lost around half of my throughput since the last time I updated.

:no:

[QUOTE=firejuggler;288573]ok... i'm gonna cry...
factored up to 2^72
M54929293 has a factor 8627989904271520875047 (72.87 bits)
k=233*751*9007*49831, found in stage-1, b1=545000[/QUOTE]

Why cry?

This is a case where P-1 found a factor above where the (new) nominal trial factoring would have found it (and after it having been TFed to 72).

At the risk of sounding stupid(er than I am), is there a GPU program for P-1, or is it still relegated to CPUs with loads of RAM?
On a related note, is it possible to get P-1 with B1 less than 75000?