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Speedy51
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Message 10626 - Posted: 19 Apr 2025, 0:51:43 UTC - in response to Message 10525.

75-76_253-297M taking 4 minutes 19 seconds 14,000 credits

Speedy51
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Message 10775 - Posted: 8 Jun 2025, 22:54:50 UTC

This post is slightly different to my normal ones in this thread.

The two tasks below that I have also included the link for at the top of the writing I also ran manually I noticed for the bottom task that last number is 257-387M I believe should run faster than the top one since it is lower credit. However it is actually 3.66 GHz days more than the top one. Is there a particular reason why my bottom task has a longer runtime?
I am now using a 4090 limited to 320W

https://srbase.my-firewall.org/sr5/result.php?resultid=26057509 gave 12,000 credit for 2 minutes 36 seconds (runtime)
got assignment: exp=376317883 bit_min=75 bit_max=76 (20.33 GHz-days)
Starting trial factoring M376317883 from 2^75 to 2^76 (20.33 GHz-days)
k_min = 50195504343600
k_max = 100391008691333
Using GPU kernel "barrett76_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Jun 09 10:19 | 4617 100.0% | 0.159 n.a. | 11509.87 82485 n.a.%
no factor for M376317883 from 2^75 to 2^76 [mfaktc 0.23.0 barrett76_mul32_gs]
tf(): total time spent: 2m 33.168s

https://srbase.my-firewall.org/sr5/result.php?resultid=25451631 gave 11,700 credits for 3 minutes 2 seconds (runtime)
got assignment: exp=318912029 bit_min=75 bit_max=76 (23.99 GHz-days)
Starting trial factoring M318912029 from 2^75 to 2^76 (23.99 GHz-days)
k_min = 59230960930680
k_max = 118461921870489
Using GPU kernel "barrett76_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Jun 09 10:22 | 4615 100.0% | 0.188 n.a. | 11486.65 82485 n.a.%
no factor for M318912029 from 2^75 to 2^76 [mfaktc 0.23.0 barrett76_mul32_gs]
tf(): total time spent: 3m 0.423s

Speedy51
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Message 10776 - Posted: 9 Jun 2025, 3:20:55 UTC

Things have returned to normal tasks that are giving 11,700 credits are taking 2 minutes 37 seconds and they have dropped to just over 20 GHz days
https://srbase.my-firewall.org/sr5/result.php?resultid=25456175

Meant to ask in my original post has the number of tasks per bit level changed I seem to recall there were 100,000 work units before the range would change. How is this changed to close to 200,000?

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Message 10777 - Posted: 9 Jun 2025, 4:38:23 UTC - in response to Message 10776.

The runtime is faster after recheck but minimal and we are nearly at 400k range.

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Message 10778 - Posted: 9 Jun 2025, 5:47:18 UTC - in response to Message 10777.
Last modified: 9 Jun 2025, 5:50:19 UTC

Thank you. I must've been unlucky to receive almost a full cache around 75 tasks that ran for a touch over 3 minutes.
I know we are not halfway through the current bit level yet, is it too early to ask whether we will be processing another bit level when this one is completed?

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Message 10779 - Posted: 9 Jun 2025, 6:23:52 UTC - in response to Message 10778.

Thank you. I must've been unlucky to receive almost a full cache around 75 tasks that ran for a touch over 3 minutes.
I know we are not halfway through the current bit level yet, is it too early to ask whether we will be processing another bit level when this one is completed?


Is the TF WU cache too small? I know if we are getting higher in range we can processing more in a hour but only on faster GPUs. The next bitlvl would take 1-2 years. There are millions of test left.

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Message 10780 - Posted: 9 Jun 2025, 7:41:42 UTC - in response to Message 10779.

No it's not too small. I was simply curious

My 4090 takes around 3 hours 26 minutes/2 minutes 36 seconds a task to complete 80 tasks, bearing in mind it is limited to 350W. If it's going to take 1 to 2 years to complete the millions of tests remaining they could get too quick for my GPU. That's not a bad thing I guess

Thanks for the details

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Message 10783 - Posted: 10 Jun 2025, 1:07:27 UTC - in response to Message 10779.
Last modified: 10 Jun 2025, 1:10:44 UTC

So I am able to have a rough idea of tracking progress by looking at the 5 numbers at the end of the task.

Taking 75-76_293-387M_wu_29659 is it reasonable for me to work out the progress with task number "29659" that we are 29.65% of the way through 293 – 387M range?

For those interested my 4090 at 320W took 2 minutes 35 seconds to complete task

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Message 10784 - Posted: 10 Jun 2025, 3:28:03 UTC - in response to Message 10783.

https://www.mersenne.ca/status/tf/0/0/1/10000

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Message 10785 - Posted: 10 Jun 2025, 4:00:58 UTC - in response to Message 10784.

Thanks, I am unsure what to do with this information, in relation to the question I asked

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Message 10786 - Posted: 10 Jun 2025, 4:12:44 UTC - in response to Message 10785.

Thanks, I am unsure what to do with this information, in relation to the question I asked


That's the total tests left. So we are close to 30% done in 75bit.

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Message 10787 - Posted: 10 Jun 2025, 4:32:09 UTC - in response to Message 10786.

Thank you, my maths is on point in regards to task numbers

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Message 10812 - Posted: 23 Jun 2025, 7:19:28 UTC - in response to Message 10626.

75-76_360-392M taking 2 minutes 38 seconds 11,700 credits

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Message 10841 - Posted: 6 Jul 2025, 4:13:42 UTC - in response to Message 10777.
Last modified: 6 Jul 2025, 4:25:35 UTC

we are nearly at 400k range.

We have reached the 400K range. https://srbase.my-firewall.org/sr5/result.php?result_name=TF_75-76_397-403M_wu_1750_0+ takes 2 minutes 27 seconds. Query, Seems a big drop in credit it's a drop of 1,200 Credits now 10,500?

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Message 10842 - Posted: 6 Jul 2025, 4:29:53 UTC - in response to Message 10841.

yes, matched with the runtime based on a RX5500XT (~1h)

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Message 10844 - Posted: 6 Jul 2025, 8:42:28 UTC - in response to Message 10842.

Appreciate the confirmation. I do not recall credit dropping by 1200 previously when changing to a high bit level less credit, less runtime.

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Message 10845 - Posted: 6 Jul 2025, 9:38:14 UTC - in response to Message 10844.

Appreciate the confirmation. I do not recall credit dropping by 1200 previously when changing to a high bit level less credit, less runtime.


It will be reduced from time to time after decreasing range too.

Speedy51
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Message 10848 - Posted: 6 Jul 2025, 21:27:37 UTC - in response to Message 10845.

Appreciate the confirmation. I do not recall credit dropping by 1200 previously when changing to a high bit level less credit, less runtime.


It will be reduced from time to time after decreasing range too.

I completely understand. I cannot recall credit dropping 1200 in the space of 2 bit levels. Out of complete curiosity what was the time difference between the last 300 bit level task and the 1st 400 bit level task on your RX5500XT?

Runtime difference between 75-76_360-392M & 75-76_397-403M on my RTX 4090 (limited to 350W) is 11 seconds. It works out to be 109.09 credits per second, for those interested

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