Forum: y-cruncher
2021-01-06, 17:48
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Replies: 14
Views: 1,822
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Forum: y-cruncher
2021-01-06, 17:47
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Replies: 49
Views: 28,944
Another approach: Ask for any random offset and...
Another approach: Ask for any random offset and if you don't get an answer immediately, then it's suspicious. It would take a tremendous amount of computing power to run get a distant offset in under...
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Forum: Hardware
2020-05-25, 00:01
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Replies: 60
Views: 14,905
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Forum: y-cruncher
2020-02-07, 10:14
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Replies: 49
Views: 28,944
To answer your actual question of how I do the...
To answer your actual question of how I do the conversion "in place". The algorithm is the scaled remainder tree. The only operations are multiplications. There are no additions or subtractions at...
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Forum: y-cruncher
2020-02-07, 09:47
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Replies: 49
Views: 28,944
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Forum: y-cruncher
2020-01-30, 18:56
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Replies: 49
Views: 28,944
50 Trillion Digits of Pi
So when Google set the record of 31.4 trillion digits last year, I gave it a 50/50 chance that record would fall before the end of the year.
Didn't quite work out that way. This latest computation...
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Forum: Math
2019-12-05, 00:16
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Replies: 1
Views: 2,066
Ideas:
I'm not familiar with the structure...
Ideas:
I'm not familiar with the structure of an optimized mersenne-transform (due to its asymmetry). But if the FFT is out-of-place and you're expending bandwidth to save the integer...
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Forum: ONeil
2019-12-04, 23:55
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Replies: 18
Views: 2,286
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Forum: Hardware
2019-11-05, 21:47
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Replies: 14
Views: 3,124
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Forum: y-cruncher
2019-10-30, 18:33
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Replies: 0
Views: 2,973
Parallel Disk I/O
The topic of parallel disk I/O has been a recurring topic and has just come up again. So I figured I create a thread to keep everything together.
First of all, there's multiple forms of parallel...
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Forum: y-cruncher
2019-10-29, 16:33
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Replies: 15
Views: 6,111
Not sure if I understand what you're referring...
Not sure if I understand what you're referring to.
Right now, swap mode uses one thread per logical path. So you can get multiple threads by using multiple logical paths - thus it's advantageous...
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Forum: Hardware
2019-10-24, 19:15
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Replies: 14
Views: 3,124
Not even close. You'd probably need 8 - 16...
Not even close. You'd probably need 8 - 16 channels to keep LL from bottlenecking on 18-core Skylake X.
The high core count Skylake X's aren't a good value for LL for this reason. You're probably...
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Forum: Hardware
2019-10-24, 18:44
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Replies: 14
Views: 3,124
If you're not overclocking it, you can pop any...
If you're not overclocking it, you can pop any large AIO on it and it'll stay quiet.
And if you intend to run LL on it, it'll be memory-bound anyways. So it won't be able to sustain a high power...
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Forum: y-cruncher
2019-10-23, 06:15
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Replies: 15
Views: 6,111
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Forum: y-cruncher
2019-10-21, 20:14
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Replies: 15
Views: 6,111
Awesome!
I've actually never heard of...
Awesome!
I've actually never heard of Ctrl+D in this context, lol. Ctrl+C is how I break out of the program.
In all cases, I'm not sure how "cleanly" it terminates the program and whether...
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Forum: y-cruncher
2019-10-19, 08:05
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Replies: 15
Views: 6,111
New beta is out:
...
New beta is out:
http://www.numberworld.org/y-cruncher/y-cruncher%20v0.7.8.9503.zip
http://www.numberworld.org/y-cruncher/y-cruncher%20v0.7.8.9503-static.tar.xz
...
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Forum: Astronomy
2019-10-18, 22:12
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Replies: 35
Views: 7,374
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Forum: y-cruncher
2019-10-11, 23:59
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Replies: 15
Views: 6,111
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Forum: Hardware
2019-10-09, 21:45
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Replies: 83
Views: 10,877
There's enough stuff in AVX512 not related to...
There's enough stuff in AVX512 not related to 512-bit that AMD can't sit on it forever. So they'll either need to adopt AVX512 as is, or build a competing version (highly unlikely).
When I spoke...
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Forum: Information & Answers
2019-09-22, 12:27
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Replies: 18
Views: 3,198
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Forum: y-cruncher
2019-09-22, 06:41
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Replies: 15
Views: 6,111
As promised, v0.7.8 public betas:
...
As promised, v0.7.8 public betas:
http://www.numberworld.org/y-cruncher/y-cruncher%20v0.7.8.9502.zip
http://www.numberworld.org/y-cruncher/y-cruncher%20v0.7.8.9502-static.tar.xz
...
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Forum: y-cruncher
2019-09-20, 18:06
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Replies: 15
Views: 6,111
Looks like you beat me to it.
Well then,...
Looks like you beat me to it.
Well then, screw that and the Zen 2 binary/optimizations. Public beta for v0.7.8 will go out this weekend since it's now feature-complete. Looking at my priories and...
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Forum: y-cruncher
2019-09-18, 16:31
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Replies: 15
Views: 6,111
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Forum: y-cruncher
2019-09-18, 07:43
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Replies: 15
Views: 6,111
We're now half-way through September:
...
We're now half-way through September:
There is still no official release date for the 3950X.
The 3900X can't stay in stock for more than a few minutes at a time.
None of the stores I've...
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Forum: y-cruncher
2019-09-09, 16:31
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Replies: 17
Views: 4,703
From what I've seen (and maybe it's just a...
From what I've seen (and maybe it's just a symptom of the test), the variation is huge. Individual latencies have a standard deviation comparable to the mean. And the location of the sync variable in...
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