[QUOTE=James Heinrich;277047]Do you happen to know which exponent it says you TF'd? It's [i]possible[/i] that PrimeNet somehow misinterpreted a found factor as coming from TF rather than P-1, although this is far less likely with automatic results submission than manual submission, and usually happens the other way (TF factor misinterpreted as P-1) if it did. Of course, it's also possible that "Whatever makes sense" actually did assign you a TF assignment at some point. Checking results.txt may shed some light on the matter.[/QUOTE]I may have made a slight mistake, but not for the reason you might guess. I looked at my lifetime stats and it shows TF work having been done, so that means it must have been done sometime during the 4.0 server days as there is no record of a number in my results page for TF and it says 4.0 results are not included. Now, that's been so long ago that I don't really remember ever letting a computer back then do TF, but I guess it's possible that I did. I'll try to be more careful with what I am reading efore I ask a question next time.

[QUOTE=KyleAskine;277060]I don't know if you are talking to me or someone else, but I have an i5-2500k with 16gig of ram. This computer is certainly not old.

And yes, once I learned more I started dedicating two cores to P-1 for the cause. I may add a third as soon as the current LL's that it is doing on two cores finish.[/QUOTE]

Carelessness strikes me....you mentioned "old computers" somewhere in your post and I thought you had one...I certainly have more than my share, including one running W95 on my desk at work, in active use to urn a certain NoHau in-circuit emulator for an 8051.[Their software, like many, actually got worse in the user-interface department with the coming of Windows]

Get your desktop a nice GPU (whatever the power supply will support), run mfaktc on it, and find lots of factors and complete DCs.....

[QUOTE=Christenson;277100]Carelessness strikes me....you mentioned "old computers" somewhere in your post and I thought you had one...I certainly have more than my share, including one running W95 on my desk at work, in active use to urn a certain NoHau in-circuit emulator for an 8051.[Their software, like many, actually got worse in the user-interface department with the coming of Windows]

Get your desktop a nice GPU (whatever the power supply will support), run mfaktc on it, and find lots of factors and complete DCs.....[/QUOTE]

Actually, I have two HD6950s in xFire. I don't factor with them with mfakto for a few reasons:

1) I wouldn't be able to run P95 anymore (or at most, have 1 worker, because of all the instances of mfakto I would require).
2) AMD's don't factor as well as nVidias (or so I have been led to believe)
3) According to my Kill-a-Watt, when both GPU's are going full bore, I use something like 400W more than when I don't. That would add up on the power bill.

I'd suggest running 1 instance of mfakto anyways. One instance will give you one idle and one half-loaded GPU, which should add up less on the power bill, but still let you use 3 cores for P-1 while providing a tremendous boost to your overall throughput.

mfakt can be run on Radeons now?

[QUOTE=lorgix;277105]mfakt can be run on Radeons now?[/QUOTE]NVIDIA / [b]C[/b]UDA: [url=http://www.mersenneforum.org/showthread.php?t=12827]mfakt[b]c[/b][/url] [url=http://www.mersennewiki.org/index.php/Mfaktc]wiki[/url]
AMD / [b]O[/b]penCL: [url=http://www.mersenneforum.org/showthread.php?t=15646]mfakt[b]o[/b][/url] [url=http://www.mersennewiki.org/index.php/Mfakto]wiki[/url]

[QUOTE=James Heinrich;277106]NVIDIA / [B]C[/B]UDA: [URL="http://www.mersenneforum.org/showthread.php?t=12827"]mfakt[B]c[/B][/URL] [URL="http://www.mersennewiki.org/index.php/Mfaktc"]wiki[/URL]
AMD / [B]O[/B]penCL: [URL="http://www.mersenneforum.org/showthread.php?t=15646"]mfakt[B]o[/B][/URL] [URL="http://www.mersennewiki.org/index.php/Mfakto"]wiki[/URL][/QUOTE]

Thanks!

Apparently my GPU doesn't support OpenCL 1.1 or newer anyway.

[QUOTE=James Heinrich;277103]I'd suggest running 1 instance of mfakto anyways. One instance will give you one idle and one half-loaded GPU, which should add up less on the power bill, but still let you use 3 cores for P-1 while providing a tremendous boost to your overall throughput.[/QUOTE]

I will definitely think about it. I have a 5870 in the other room that I run one instance of mfakto on, and that card gives me probably more throughput (as measured in GHz/h) than all of my other 6 PC's combined (though 3 of those pc's are very old).

[QUOTE=petrw1;277004]I have on ocassion seen a message similar to "New B1 value ignored. Using B1 from save file instead" in my worker windows on startup with a new memory allocation.[/QUOTE]

So have I, but only during stage 2.

[QUOTE=bcp19;277005]You just went and confused me again :/ If the bounds are not changed, even though the program restarts the worker and reports them changed, the variations I saw then make no sense.

Worker 1 is running a P-1 stage 1 on a 322M exponent, Workers 2,3&4 were doing ECM's. Worker 1 was completing .21-.22% every 6700 sec. Worker 3 switches to 60M TF and 8 min into the 150 min between W1's output and Worker 2 was switches to a P-1 on a 52M exp 66min in, Worker 1 shows 6550 sec, next iteration Worker 1 completes in 6389 sec.

Using the above times and %'s, at 6700 per 'tick' the entire run should take 36.9 days, at 6389, 35.2 days. As expected, switching from ECM's to TF/P-1 on other workers showed a drop in time spent per tick.[/QUOTE]

There are two things happening here.

First, without changing the bounds, the algorithm runs faster with more memory. Secondly, both P-1 and ECM are memory-bandwidth-hungry algorithms. If both are running at the same time, they will compete for the available memory bandwidth, slowing down both.

[QUOTE=James Heinrich;277106]NVIDIA / [b]C[/b]UDA: [url=http://www.mersenneforum.org/showthread.php?t=12827]mfakt[b]c[/b][/url] [url=http://www.mersennewiki.org/index.php/Mfaktc]wiki[/url]
AMD / [b]O[/b]penCL: [url=http://www.mersenneforum.org/showthread.php?t=15646]mfakt[b]o[/b][/url] [url=http://www.mersennewiki.org/index.php/Mfakto]wiki[/url][/QUOTE]

I remember reading somewhere that you aren't supposed to report no factor results from mfakto?