How do you catch expiring LLs?

There are lots of 50 and 51Ms available until around 1000 UTC. I just ask for LL tests on the manual assignments page. PM me and I can send you some to TF.

so like between 0500-1000? (or so?)

Yup! Like right now.

Expired exponents are made available from about 23:40 UTC each day. 00:40 my local time. If I'm still up I usually try to grab some needing P-1.

Last night I grabbed a whole bunch, in the 45M-49M range. Far more than I need, and including many with P-1 done. Most of the 45Ms and 46Ms and some of the 47Ms have been factored to 68 bits only. Most of the rest to 69.

If anyone want to take any of these on, PM me. Otherwise I will unreserve them.

Your batch to me has just completed 71 bits, just the one factor you know about; I'll do 72 bits in a few days. I'm up for a batch of 50 or 100 to 69 bits.

As Hoc Basis
 

I ask rhetorically:
"Why can't the numerous GPU users get urgent TF work in the
current LL assignment range?"
"Why will your average LL tester not get a nicely TFed expo <50M ?"

This is a "Distributed project".
Grab fewer at a time, and TF to 72 bits, giving other folk a chance to do likewise.

David,
26% through LL testing 45.5M (TFed to 74 bits)

[QUOTE=Dubslow;273518][URL="http://www.mersenne.org/report_exponent/?exp_lo=51567343&exp_hi=10000&B1=Get+status"]51567343[/URL]
This exponent last had TF activty in May 2010. I know me and many others have been getting hundreds and thousands of TF assignments up to 71 bits, but usually in the 54M-55M range, at least in my experience. How come this exponent hasn't been assigned for more TF'ing?[/QUOTE]
[QUOTE=Prime95;273533]Since GPUs have successfully got most exponents up to 2^70, I've started handing out some TF to 2^71 to keep the GPUs busy.[/QUOTE]
[QUOTE=Dubslow;273536]But then why was this one sent straight to LL? It's only at 69.[/QUOTE]
[QUOTE=Prime95;273540]These extra bits of TF are done manually on a rather [B][U]ad hoc basis[/U][/B].[/QUOTE]

[QUOTE=davieddy;273590][B]I would replace "rather" with "extremely"[/B]:smile:David[/QUOTE]
[QUOTE=garo;274774]Try asking for exponents with a lower bound of 50M or more. I was able to get 400 54Ms this way. Starting with zero may not be ideal depending on the way the Primenet server is coded.[/QUOTE]
[QUOTE=Dubslow;274925]How do you catch expiring LLs?[/QUOTE]
[QUOTE=garo;274931]There are lots of 50 and 51Ms available until around 1000 UTC. I just ask for LL tests on the manual assignments page. PM me and I can send you some to TF.[/QUOTE]
[QUOTE=garo;274922]There is nothing stopping GPUs from taking 54Ms to 72 or 73. Just ask for LL tests and then change the assignment type.
I have started catching expiring LLs and using my GPU to TF them to 71 bits. I was doing 72 but I can't keep up without help.[/QUOTE]
[QUOTE=Mr. P-1;274995]Expired exponents are made available from about 23:40 UTC each day. 00:40 my local time. If I'm still up I usually try to grab some needing P-1.
Last night I grabbed a whole bunch, in the 45M-49M range. Far more than I need, and including many with P-1 done. Most of the 45Ms and 46Ms and some of the 47Ms have been factored to 68 bits only. Most of the rest to 69.If anyone want to take any of these on, PM me. Otherwise I will unreserve them.[/QUOTE]
[QUOTE=Christenson;275043]Your batch to me has just completed 71 bits, just the one factor you know about; I'll do 72 bits in a few days. I'm up for a batch of 50 or 100 to 69 bits.[/QUOTE]

[QUOTE=davieddy;275061]I ask rhetorically:
"Why can't the numerous GPU users get urgent TF work in the
current LL assignment range?"
"Why will your average LL tester not get a nicely TFed expo <50M ?"

This is a "Distributed project".
Grab fewer at a time, and TF to 72 bits, giving other folk a chance to do likewise.

David,
26% through LL testing 45.5M (TFed to 74 bits)[/QUOTE]

Speaking for myself,

I'm still waiting on PrimeNet integration into mfaktc. So right now it's a manual process. I grab DC assignment and TF to 69, with a goal of going to 70 (maybe even 71) eventually.

IMO LL candidate at the wavefront receive enough attention, with the PrimeNet infrastructure directly handling it. Although I manually TF to 72 the candidate I get assigned to do LL.

[QUOTE=davieddy;275061]I ask rhetorically:
"Why can't the numerous GPU users get urgent TF work in the
current LL assignment range?"
"Why will your average LL tester not get a nicely TFed expo <50M ?"

This is a "Distributed project".
Grab fewer at a time, and TF to 72 bits, giving other folk a chance to do likewise.[/QUOTE]

Option 1: TF 25 newly-expired assignments from 68 to 72, and find about 1 factor that would not otherwise be found (assuming a 1% chance of finding such a factor per bit level).

Option 2: Using the same resources, TF 375 newly-expired assignments from 68 to 69. amd find about 3.75 new factors.

Option 2 is the clear win here, assuming that the exponents would not otherwise enjoy further TFing. I've been grabbing exponents shortly after expiry for years now, (albeit in much smaller quantities, solely to meet my own need for P-1able assignments), and I've never seen any indication that others are doing likewise. Rather it looks as though they're being taken one-by-one by clients which are probably not doing any more TF.

I've now given away for TFing all of the assignments which I grabbed over the past couple of days, except for the ones I'm keeping for myself. I won't be grabbing any more for a while unless someone asks. If anyone else wants to grab some, have at it. If they're busy (or asleep) when the expiries happen, I'll willing to grab some on their behalf. Otherwise, the most likely outcome is that the expiries will be re-taken up for LLing and never TFed further.

Funny, it looks like ckdo has been grabbing large numbers of exponents and doing one bitlevel (with help from his friends) in the 27M area...doing much the same calculation.
Me, I've just set most of my cores to doing P-1, and they get whatever Primenet hands them...

[QUOTE=diamonddave;275078]Speaking for myself,

I'm still waiting on PrimeNet integration into mfaktc. So right now it's a manual process. I grab DC assignment and TF to 69, with a goal of going to 70 (maybe even 71) eventually.

IMO LL candidate at the wavefront receive enough attention, with the PrimeNet infrastructure directly handling it. Although I manually TF to 72 the candidate I get assigned to do LL.[/QUOTE]
If it is worth TFing a DC to 69, it is worth TFing a first time LL to 73.

[QUOTE=Mr. P-1;275082]Option 1: TF 25 newly-expired assignments from 68 to 72, and find about 1 factor that would not otherwise be found (assuming a 1% chance of finding such a factor per bit level).

Option 2: Using the same resources, TF 375 newly-expired assignments from 68 to 69. amd find about 3.75 new factors.

Option 2 is the clear win here, [B]assuming that the exponents would not otherwise enjoy further TFing[/B]. I've been grabbing exponents shortly after expiry for years now, (albeit in much smaller quantities, solely to meet my own need for P-1able assignments), and I've never seen any indication that others are doing likewise. Rather it looks as though they're being taken one-by-one by clients which are probably not doing any more TF.

I've now given away for TFing all of the assignments which I grabbed over the past couple of days, except for the ones I'm keeping for myself. I won't be grabbing any more for a while unless someone asks. If anyone else wants to grab some, have at it. If they're busy (or asleep) when the expiries happen, I'll willing to grab some on their behalf. Otherwise, the most likely outcome is that the expiries will be re-taken up for LLing and never TFed further.[/QUOTE]

Your "grab" is absolutely fine, in light of what you have done with it.
I just found it ironic that no sooner had Garo pointed out to Dubslow
the time and method of getting expiries, than you grabbed them all!
I hope he (Dubslow) got some.

Note that there is unanimity about 72 bits (mfaktc) being worthwhile.
It is also feasible as long as you have 15 GPUs doing your option 1,
rather than 1 GPU doing your option 2.
Note Garo's admission that he had dropped the level to 71 from 72
for his grab "since one man and his dog can't do it all".

I have suggested that the expired exponents should be made available
for TF (GPU only) instead of LL testing, because I agree with you that
as it is, they will go straight to LL with no further TF.

David