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-   -   GPU to 72 status... (https://www.mersenneforum.org/showthread.php?t=16263)

chalsall 2014-12-11 20:07

[QUOTE=Mark Rose;389780]Those of use who want to finish all the DCTF could leave our systems set to LG72D DCTF. I will for the time being.[/QUOTE]

Makes perfect sense. :smile:

TheMawn 2014-12-12 00:51

I will also remain on DCTF. Give us a shout if suddenly we had a need for LLTF.

I won't consider 75 bits to be a "need" until DCTF is finished.

petrw1 2014-12-12 03:55

[QUOTE=TheMawn;389805]I will also remain on DCTF. Give us a shout if suddenly we had a need for LLTF.

I won't consider 75 bits to be a "need" until DCTF is finished.[/QUOTE]

Me Three

LaurV 2014-12-12 04:56

M4. This is where your "5 years" go, Chris :razz:
I think you should step on your pride and make those cells white, now, hehe.

petrw1 2014-12-12 05:08

[QUOTE=LaurV;389833]M4. [/QUOTE]

Ok our Empire grows....can we total up how many GhzDays we have between us for our "Die! DCTF Die!!!" project .... anyone have a better name? I'm open.

AND ANYONE ELSE?????

I am committing 500 GhzDay's for the foreseeable future (again only as long as Chris doesn't plea for help at the LL front).

Mark Rose 2014-12-12 05:39

... and my sword ... and my bow ... and my axe!

LaurV 2014-12-12 05:58

[QUOTE=petrw1;389834]I am committing 500 GhzDay's for the foreseeable future<...>[/QUOTE]
[URL="http://www.gpu72.com/reports/worker/2423ae6e8f696d5e7d1447de91ca35a6/"]1T8[/URL] (this means 1800GHzD/D, and I meant it when I said it) as long as we have DCTF work and no requirement for other work, at least till Thai summer comes in March/April. :smile:

kladner 2014-12-12 06:19

I'll be conservative and say that I will continue with ~460 GHz-d/d for the moment.

[OT]: I have been looking at PSUs, and ways of improving the PCIe power connections on the GTX 570, which is currently shelved. I think I either have to replace the connectors, or do something bizarre like cutting away the plastic on the existing connectors, and doing a solder buildup on the pins. The nominal cross section of those pins is square. On my 570, they are conical. I don't want to wreck another set of cable ends. However, the 570 could add another ~360-370, if I make it reliable again.
EDIT2: .....and get an adequate and efficient PSU to run an OC'd 580 and 570.[/OT]

manfred4 2014-12-12 06:48

I will continue with this DCTF as well for now - with averaging 300 GHzd/d.
The people saying their firepower in the last few posts would add up to 3060 GHzd/d. I calculated we are approximately 3088000 GHzd in front of our goal relating to [URL="http://en.gpu72.com/reports/current_level/"]this[/URL] table, or ~1000 days until we're finished.

TheMawn 2014-12-12 17:04

[QUOTE=petrw1;389834]can we total up how many GhzDays we have between us for our "Die! DCTF Die!!!" project [/QUOTE]

~550 GHz from me.

Will any of the DCTF stuff also be brought to 72?

Assuming we're taking everything from 30M to 50M (inclusive) just up to 71 from where it is, we have roughly the equivalent of 420,000 69 to 70 jobs.

This puts my estimate somewhere along 1.3 million GHz-Days. If we have to do anything in the 50M range up to 72 bits then that will change significantly.


EDIT: My calculations took the GHz-Days from one of my ongoing 38M exponents as the base which might be a bit high. Taking into account the graph in manfred's post (I was looking for that one actually) which suggests that everything past 45M also goes to 72, then we're closer to 3 million GHz-Days, right about where his estimate is.


Add my GHz-Days and we're down to 2 years, 4 months.

chalsall 2014-12-12 18:24

[QUOTE=TheMawn;389871]Add my GHz-Days and we're down to 2 years, 4 months.[/QUOTE]

Take a look at [URL="https://www.gpu72.com/reports/estimated_completion/primenet/"]the second table on this report[/URL]. ~240 days to complete as the TF goal is currently configured (based on our thirty day rolling average of DCTF'ing).

However, as LaurV (correctly) pointed out, the "optimal TF level" for these ranges are actually higher for the higher ranges than shown, so we have some more work to do. I will adjust the report to be "correct" over this next weekend.

Also, keep in mind that you guys only seriously "surged" two weeks ago. The estimates given on the above report is based on the middle of the linear regression line on [URL="https://www.gpu72.com/graphs/dctf/month/"]this graph[/URL]. Read: If you guys keep this up, the estimate will continue to drop. :smile:


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