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-   -   RIP DCTF. (https://www.mersenneforum.org/showthread.php?t=19897)

chalsall 2015-10-31 14:09

Everything at 70 now assigned...
 
Just so everyone knows, all DCTF candidates at 70 bits has now been assigned.

I have adjusted the assignment code such that if MISFIT or floop is requesting assignments, the pledge is automatically bumped to 72 if it's below that. This is to ensure automatically fed GPUTF'ers are not starved.

airsquirrels 2015-10-31 14:52

I took a big chunk of DCTF assignments this morning that I will be working for the next ten days or so before switching back to LLTF. That should be taking us up close to 51M for DCTF.

I have two more systems coming online shortly that will be on LLTF, so I'm not totally abandoning that group.

chalsall 2015-10-31 14:54

[QUOTE=airsquirrels;414413]I have two more systems coming online shortly that will be on LLTF, so I'm not totally abandoning it that group.[/QUOTE]

Thanks much! :tu:

LaurV 2015-10-31 16:29

[QUOTE=chalsall;414411]Just so everyone knows, all DCTF candidates at 70 bits has now been assigned.

I have adjusted the assignment code such that if MISFIT or floop is requesting assignments, the pledge is automatically bumped to 72 if it's below that. This is to ensure automatically fed GPUTF'ers are not starved.[/QUOTE]
OK with me, I only have 1 card on DCTF now, a HD7970, and that is there because mfakto has a penalty on it, for higher bits (the subject was much debated before). It produces ~480GHzD/D at 71, and it may go lower, like 450 or even 430 for higher bits. But those 430 you will still get, 24/7. I have no other utility for the card right now (that computer has a core2 cpu and it does nothing else, effectively. It is only powered on for DCTF).

Mark Rose 2015-11-06 03:26

My 58M to 105M DCTF is bearing fruit.

The highest so far is [url=http://www.mersenne.org/report_exponent/?exp_lo=98174081&full=1]M98174081[/url].

I should have all the existing work done in about 10 days. Of course more keeps trickling in as suboptimally TF'ed assignments complete LL.

It might be a worthwhile effort to TF all suboptimally TF'ed exponents while they are LL assigned to clean up. While the remaining LL would be pointless, we should still do the work before DCLL anyway. Thoughts?

petrw1 2015-11-06 15:30

2 AWOL
 
Not atypical ANONYMOUS has not results reported since Oct 26 but today is a Friday so fingers crossed,
Unusual though is no results from AirSquirrels since Nov 2.

Here's hoping for a couple big WHAMMMSSSS!!!!! soon

petrw1 2015-11-06 20:54

[QUOTE=petrw1;415136]Not atypical ANONYMOUS has not results reported since Oct 26 but today is a Friday so fingers crossed,
Unusual though is no results from AirSquirrels since Nov 2.

Here's hoping for a couple big WHAMMMSSSS!!!!! soon[/QUOTE]

ANONYMOUS right on schedule...

1 down 1 to go.

monst 2015-11-07 16:40

[QUOTE=Mark Rose;412712]In about a month I will have cleared all the DCTF work above 58M and below 100M. I'm devoting about 500 GHz-d/d to it. There are about 400 exponents needing work.

I imagine more will come about as old high assignments are completed though.[/QUOTE]

To what bit level are you taking these exponents?

Mark Rose 2015-11-07 18:18

[QUOTE=monst;415298]To what bit level are you taking these exponents?[/QUOTE]

58M to 66M to 73 bits
66M to 84M to 74 bits
84M to 105M to 75 bits

I found a handful at 103M, so I decided to take those to 75 bits, too.

I picked bit levels based on James' cutoff points graph for the [url=http://www.mersenne.ca/cudalucas.php?model=12]GTX 580[/url], which constitutes most of my TF power.

One or two a day keep trickling out in the 76.9M range. They were trial factored to 73 bits.

Edit: Everything below 73M is done.

sonjohan 2015-11-09 16:08

I'm having my old GTX570M running Misfit.
I don't really know what it's currently testing. Probably whatever makes sense?

Still, I'm extremely annoyed that I haven't had a successful (factoring) result since months (not really active 24/7).
Maybe I should redo a test with a known factor to recheck the graphics card?

petrw1 2015-11-09 16:15

I've had as many as 400 unsuccessful attempts before finding a factor....anyway here are a few of my recent finds if you want to recheck. These are all TF 71-72 Bits

48705029 F 3752369118463113049481
48573023 F 4429321718573089848079
48391009 F 2548192211878674122353
48830011 F 3758575472036920487639
48250009 F 2637062217059701172081


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