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Search: Posts Made By: axn
Forum: Data 2021-07-30, 14:39
Replies: 625
Views: 87,848
Posted By axn
James H could probably pull up a report, but...

James H could probably pull up a report, but there appears to be a lot of TF activity every which way in that range. Not necessarily all of the folks might be (frequent) forumites.
Forum: Lounge 2021-07-28, 06:37
Replies: 44
Views: 820
Posted By axn
No.

No.
Forum: Data 2021-07-28, 03:41
Replies: 625
Views: 87,848
Posted By axn
If TJAOI...

If TJAOI (https://www.mersenne.ca/tjaoi.php?details=1)'s results are to be trusted, there are no new factors < 2^67 to be found in GIMPS range (p < 1e9)
Forum: Data 2021-07-28, 03:12
Replies: 625
Views: 87,848
Posted By axn
Move on. There is enough work in twok.

Move on. There is enough work in twok.
Forum: Hardware 2021-07-27, 14:16
Replies: 35
Views: 2,798
Posted By axn
The "relative primes" is the number of buffers...

The "relative primes" is the number of buffers (i.e fft arrays) being used. For 5.5m FFT, 44MB per buffer, the allocation is 312708 MB. On top of it, it uses 50-100MB of memory for prime bitmaps and...
Forum: Forum Feedback 2021-07-27, 14:08
Replies: 30
Views: 660
Posted By axn
https://github.com/LibreOffice/core/tree/master/sy...

https://github.com/LibreOffice/core/tree/master/sysui/desktop/icons/hicolor/16x16/apps
https://github.com/LibreOffice/core/tree/master/sysui/desktop/icons/hicolor/128x128/apps
etc..
Forum: Information & Answers 2021-07-25, 16:36
Replies: 40
Views: 1,586
Posted By axn
Did you correct the errors from your last trial?

Did you correct the errors from your last trial?
Forum: Hardware 2021-07-25, 16:08
Replies: 17
Views: 751
Posted By axn
TDP doesn't mean maximum power consumed by the...

TDP doesn't mean maximum power consumed by the CPU. A 165W TDP processor could easily consume 200W or more running flat out. Not saying that's what your CPUs are doing, but it is possible.

Also 12...
Forum: Miscellaneous Math 2021-07-25, 12:57
Replies: 45
Views: 1,175
Posted By axn
I'm closing this thread. I will move some of the...

I'm closing this thread. I will move some of the more productive posts into a separate thread. Link will be posted here

EDIT:- Move posts are available here:...
Forum: Information & Answers 2021-07-24, 16:05
Replies: 40
Views: 1,586
Posted By axn
The HT thing was just an observation. It does...

The HT thing was just an observation. It does materially affect the Affinity setting, though. So, should you decide to turn on HT, it will need a different set of values for Affinity.

We still...
Forum: Information & Answers 2021-07-24, 12:52
Replies: 40
Views: 1,586
Posted By axn
Is the HT turned off (or is there no HT)? It is...

Is the HT turned off (or is there no HT)? It is only reporting 1 logical processor per core and a total of 52 logical cores.

Taking that at face value, the affinities should be:


local.txt...
Forum: Information & Answers 2021-07-24, 05:05
Replies: 40
Views: 1,586
Posted By axn
On further experimenting, the affinity numbers...

On further experimenting, the affinity numbers might be all wrong. Can you do a lstopo-no-graphics and post the output?

EDIT:- lstopo-no-graphics --no-io
Forum: Information & Answers 2021-07-24, 03:39
Replies: 40
Views: 1,586
Posted By axn
I think I've figured out what needs to be done to...

I think I've figured out what needs to be done to get this working. If you've already tried these then I'm out of ideas.

We need to setup two folders with different copies of local.txt, prime.txt...
Forum: Information & Answers 2021-07-23, 16:39
Replies: 40
Views: 1,586
Posted By axn
That is unusually low! Indeed! But you would...

That is unusually low!

Indeed! But you would also need numactl & two instances to guarantee proper RAM mapping.
Forum: Information & Answers 2021-07-23, 14:28
Replies: 40
Views: 1,586
Posted By axn
I believe the current first time tests use either...

I believe the current first time tests use either 5.5M or 6M FFT. That mean it either consumes 44MB or 48MB per FFT. Plus some ancillary memory for some lookup tables. If you're running two per CPU,...
Forum: Hardware 2021-07-23, 12:25
Replies: 221
Views: 30,670
Posted By axn
Hmmm.. So the benchmarks lied? 16 workers were...

Hmmm.. So the benchmarks lied? 16 workers were supposed to give 10% more thruput compared to 4, so it should have completed in 36 days?



If 8 worker can complete in 18 days or less, it would...
Forum: Information & Answers 2021-07-23, 12:14
Replies: 40
Views: 1,586
Posted By axn
Ratio of PRP runtime to P-1 runtime is not a...

Ratio of PRP runtime to P-1 runtime is not a meaningful figure (without also mentioning the bounds used / probability of success). However, for a given exponent, RAM allocation, and bounds, the ratio...
Forum: Information & Answers 2021-07-23, 08:42
Replies: 40
Views: 1,586
Posted By axn
I do not believe the server has been adjusted to...

I do not believe the server has been adjusted to give the correct GHzDay credit for the improved P-1 Stage 2 implemented from 30.4 onwards. I believe it still assumes that the P-1 has been done by...
Forum: PrimeNet 2021-07-21, 14:49
Replies: 54
Views: 1,423
Posted By axn
The first worker (even if by mere seconds) will...

The first worker (even if by mere seconds) will start with all the memory. Then, as the second worker comes along, first will stop and restart with reduced memory; second will grab the remaining....
Forum: PrimeNet 2021-07-21, 13:22
Replies: 54
Views: 1,423
Posted By axn
I did not mean to imply that it would lose the...

I did not mean to imply that it would lose the progress. But, phew, I wasn't imagining things. That's a relief.


I am not sure the projections are accurate. For the first one, if we look at:
...
Forum: Hardware 2021-07-21, 11:58
Replies: 221
Views: 30,670
Posted By axn
Is there any reason why you're not trying 8...

Is there any reason why you're not trying 8 workers ?!
Forum: PrimeNet 2021-07-20, 17:14
Replies: 54
Views: 1,423
Posted By axn
Hmmm... Perhaps I'm confusing it with the day...

Hmmm... Perhaps I'm confusing it with the day time/night time memory settings. In that case, a different point applies -- it is better overall to do two P-1 with similar amount of RAM than one with...
Forum: Software 2021-07-20, 12:42
Replies: 50
Views: 1,826
Posted By axn
One thing I could think of: When you balance the...

One thing I could think of: When you balance the most significant word, you might have to carry out a 1 into the next word. Whether or not this needs to be done could change based on the bits per...
Forum: Hardware 2021-07-20, 12:24
Replies: 221
Views: 30,670
Posted By axn
8 worker and 16 worker have practically the same...

8 worker and 16 worker have practically the same thruput, so between those two, 8 should be preferred.

Similary 32 and 64 workers are also practically same, so 32 should be preferred over 64
Forum: PrimeNet 2021-07-19, 13:10
Replies: 54
Views: 1,423
Posted By axn
It is. However, there is a catch. When one...

It is. However, there is a catch. When one worker starts stage 2, it will grab all available memory. When another one enters stage 2, the first worker will stop & restart with reduced memory so that...
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