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Old 2021-05-02, 10:11   #441
lycorn
 
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Good. Hopefully you'll see some over the next couple of days, if the Colab powers are in a good mood. 😏
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Old 2021-05-06, 11:24   #442
axn
 
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Thumbs up Stick a fork in it, 'cause ...

... 3.4 is done.

Got some help from ECM as the range is now being worked in GIMPS.

Once I'm done with the current batch of P-1 (another 6 days), I'll be moving on to 3.7
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Old 2021-05-06, 14:53   #443
petrw1
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Quote:
Originally Posted by axn View Post
... 3.4 is done.

Got some help from ECM as the range is now being worked in GIMPS.

Once I'm done with the current batch of P-1 (another 6 days), I'll be moving on to 3.7
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Old 2021-05-11, 07:23   #444
lycorn
 
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I´ve finished TFing the 16M range to 70 bits. 113 new factors found. The whole range is up for grabs, 21032 to go.
Planning to move to 11.9M shortly.
Still fiddling with 26.9, using Colab. Slow progress, as the availability of GPUs is not great.
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Old 2021-05-11, 14:31   #445
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Quote:
Originally Posted by lycorn View Post
I´ve finished TFing the 16M range to 70 bits. 113 new factors found. The whole range is up for grabs, 21032 to go.
Planning to move to 11.9M shortly.
Still fiddling with 26.9, using Colab. Slow progress, as the availability of GPUs is not great.
The ranges below 30M certainly can benefit from more TF but more of the factors from here on will be easier found via P1.

Thanks
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Old 2021-05-13, 17:51   #446
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The 26.9 range is free. I took some exponents to 71 bits, the rest is at 70, available for whoever feels like crunching them.
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Old 2021-05-14, 04:01   #447
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30M has less than 200,000 unfactored exponents!
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Old 2021-05-14, 04:05   #448
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Quote:
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30M has less than 200,000 unfactored exponents!
Yeah!!! 2 to go.
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Old 2021-05-14, 04:46   #449
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Quote:
Originally Posted by petrw1 View Post
Yeah!!! 2 to go.
In the last 365 days,
Code:
10M	-1,677
20M	-2,326
We need respectively 10k/8k more in those ranges (at all resolutions, 10M, 1M and 0.1M)
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Old 2021-05-14, 13:09   #450
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Quote:
Originally Posted by petrw1 View Post
There are only 3 ranges remaining in the 4xMillions but they are stubborn.

42.6: 47 remaining
48.4: 49
49.6: 49

I have done aggressive P1 on these 3 ranges.
Every exponent is P1'd to at least a 3.5% factor rate; many to a 5.25% factor rate.
I estimate that to continue P1 would require about 500GhzDays per P1 factor.

Therefore, I am suggesting that the preferred next step is TF with a nice GPU farm.
They are currently factored to 74 bits.
To complete these ranges will require full TF to 76 bits; then about half the exponents 77 bits. A total of about 2.5M GhzDays of TF.

Thanks for everyone's help.
I'll work on the 42.6 range. There was no TF activity in this range in the 12 last months. I can allocate +/- 2.500 GHz/day per day.
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Old 2021-05-14, 14:20   #451
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Quote:
Originally Posted by De Wandelaar View Post
I'll work on the 42.6 range. There was no TF activity in this range in the 12 last months. I can allocate +/- 2.500 GHz/day per day.
There are 2043 numbers in that range. TF from 74-75 takes about 90 GHd, so you should be able to complete the range in 10-11 weeks.

Based on prior P-1 done, you should find a factor every 115 numbers (1 every 4 days) or about 15-19 for the whole range. 75-76 will take double that time and find similar number of factors.

BTW, 49.6 might be easier as the TF will be faster, and you're likely to find more factors as the P-1 done is slightly less.
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