mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 1000
Search took 0.33 seconds.
Search: Posts Made By: bsquared
Forum: YAFU 2022-09-28, 03:27
Replies: 0
Views: 8
Posted By bsquared
yafu with ggnfs

As mentioned here (https://www.mersenneforum.org/showpost.php?p=614360&postcount=217), the microecm/tinyecm code in yafu appears to be helpful in the ggnfs lattice sievers as a replacement for mpqs...
Forum: Factoring 2022-09-28, 02:25
Replies: 216
Views: 33,159
Posted By bsquared
Agreed on the CADO note. However I think on most...

Agreed on the CADO note. However I think on most jobs, microecm is completely sufficient. Anything with mfba/r of 64 or less can use microecm as a complete replacement for mpqs. For really big...
Forum: Factoring 2022-09-27, 13:24
Replies: 2
Views: 164
Posted By bsquared
Thank you Jeff, I am happy to see this...

Thank you Jeff, I am happy to see this announcement!

I just wanted to add, Jeff did much more than just add significant optimizations to the low-level code in microecm. He also spotted an...
Forum: YAFU 2022-09-27, 01:10
Replies: 55
Views: 93
Posted By bsquared
No, not using the improved version that I know...

No, not using the improved version that I know of. It has been working for me just fine on several windows systems. Does it run single threaded?
Forum: Programming 2022-09-26, 17:28
Replies: 4
Views: 667
Posted By bsquared
Agreed. Yafu uses compressstoreu along with...

Agreed. Yafu uses compressstoreu along with popcount in its bucket sieve.
Forum: Hardware 2022-09-26, 14:05
Replies: 15
Views: 77,414
Posted By bsquared
Thank you for this! Lots of great info.

Thank you for this! Lots of great info.
Forum: YAFU 2022-09-26, 02:19
Replies: 55
Views: 93
Posted By bsquared
When there is no final newline then feof()...

When there is no final newline then feof() returns true regardless of if the previous fgets() read anything or not. So there has to be an extra check if the fgets() has meaningful data in it in...
Forum: YAFU 2022-09-23, 17:23
Replies: 55
Views: 93
Posted By bsquared
Here's ...

Here's (https://www.mersenneforum.org/showthread.php?t=16480)a thread for GPU-ECM.

And here's (https://www.mersenneforum.org/showthread.php?t=27103)a thread for Seth Trosi's improved CGBN...
Forum: YAFU 2022-09-23, 17:19
Replies: 55
Views: 93
Posted By bsquared
Did you Ctrl-C out of the gpu-ecm run? Threads...

Did you Ctrl-C out of the gpu-ecm run? Threads is temporarily set to 1 to run gpu-ecm, but it should be set back to whatever it was before. A Ctrl-C might prevent it being set back.
Forum: YAFU 2022-09-22, 16:28
Replies: 55
Views: 93
Posted By bsquared
No, that's not right. Thanks, I'll take a look.

No, that's not right. Thanks, I'll take a look.
Forum: YAFU 2022-09-22, 14:45
Replies: 55
Views: 93
Posted By bsquared
Problem in tune() fixed. Also fixed an issue in...

Problem in tune() fixed.
Also fixed an issue in microecm when compiling with gcc (verified it works now with gcc-11.1.0).
Re-built and re-uploaded the windows executables.
Forum: YAFU 2022-09-22, 00:18
Replies: 55
Views: 93
Posted By bsquared
Sweet! Good to see progress. Actually I...

Sweet! Good to see progress.

Actually I realized now that I didn't update the msieve dependency, so maybe that will take care of the error you're seeing now. Might not be able to get that...
Forum: YAFU 2022-09-21, 22:29
Replies: 55
Views: 93
Posted By bsquared
I re-uploaded yafu-x64-gc.exe. This time I...

I re-uploaded yafu-x64-gc.exe.

This time I did a complete rebuild of the entire dependency chain starting with mpir-3.0.0 (core2), then ecm-7.0.4, ytools, ysieve, and yafu. In all MSVC projects I...
Forum: Factoring 2022-09-21, 18:21
Replies: 216
Views: 33,159
Posted By bsquared
Update: I borrowed some single-limb vector...

Update:
I borrowed some single-limb vector multiply functions from avx-ecm to make a vectorized version of microecm that operates up to 52 bits (the precision limit of the multipliers). Here it is...
Forum: YAFU 2022-09-21, 18:14
Replies: 55
Views: 93
Posted By bsquared
I checked in yafu-x64-gc.exe, which I created by...

I checked in yafu-x64-gc.exe, which I created by linking against a generic C version of MPIR-3.0.0. Please test it and see if it's any better.
Forum: YAFU 2022-09-20, 17:25
Replies: 55
Views: 93
Posted By bsquared
Here...

Here (https://github.com/bbuhrow/yafu/blob/master/yafu-x64.exe).

By the way, I now suspect the linked GMP library as the problem, since the initial batch of primes is found just fine. The illegal...
Forum: YAFU 2022-09-20, 16:17
Replies: 55
Views: 93
Posted By bsquared
Can you share the last 10-15 lines of session.log...

Can you share the last 10-15 lines of session.log after an attempted startup?
Forum: YAFU 2022-09-20, 15:35
Replies: 55
Views: 93
Posted By bsquared
I don't know why it would crash on windows 7 and...

I don't know why it would crash on windows 7 and not windows 10. But my understanding of the dependencies of Visual Studio 2022 is very murky. Maybe it requires win10....

My hope is that it is a...
Forum: YAFU 2022-09-20, 13:49
Replies: 55
Views: 93
Posted By bsquared
Version 2.10

I checked in version 2.10.

Hopefully fixes the recently reported crashing issue right after yafu starts on systems without BMI1/2 (this is still not something I can directly test, so let me know...
Forum: YAFU 2022-09-20, 13:10
Replies: 438
Views: 60,973
Posted By bsquared
You'll need to add USE_BMI2=1 to the make line as...

You'll need to add USE_BMI2=1 to the make line as well. Most cpu's that have avx2 also have bmi2... if yours doesn't then you'll have to remove both the avx2 and bmi2 options.
Forum: Factoring 2022-09-19, 13:57
Replies: 216
Views: 33,159
Posted By bsquared
Over the past few weeks, Jeff Hurchalla has...

Over the past few weeks, Jeff Hurchalla has driven a series of updates to the microecm code. Foremost among them a faster way to do Montgomery arithmetic on single-limb inputs. He has also been...
Forum: Programming 2022-09-15, 13:30
Replies: 4
Views: 667
Posted By bsquared
Compress epi32's into zmm (packing selected words...

Compress epi32's into zmm (packing selected words into lower-order locations of zmm).
Pack the selected mask-bit locations into the lower-order bits of eax(k1).
Mask store them into unaligned...
Forum: Factoring 2022-09-11, 18:22
Replies: 106
Views: 8,471
Posted By bsquared
Mfaktc is great at finding small factors but the...

Mfaktc is great at finding small factors but the miminal possible factor size of M1277 is many many orders of magnitude larger than anything it can find. We know this because of the amount of ECM...
Forum: YAFU 2022-09-07, 17:47
Replies: 438
Views: 60,973
Posted By bsquared
It should work on systems without AVX2, but I...

It should work on systems without AVX2, but I don't have any of those to test on anymore, so apparently it doesn't. Based on where it crashes it would seem the problem lies in the ysieve library,...
Forum: YAFU 2022-08-28, 15:53
Replies: 438
Views: 60,973
Posted By bsquared
If you look closely at EdH's post of the output...

If you look closely at EdH's post of the output you'll see:

nfs: commencing nfs on c76: 9649340769776349618630915417390658987772498722136713669954798667326094136661
nfs: searching for brent...
Showing results 1 to 25 of 1000

 
All times are UTC. The time now is 04:03.


Wed Sep 28 04:03:47 UTC 2022 up 41 days, 1:32, 0 users, load averages: 2.05, 1.58, 1.27

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.

≠ ± ∓ ÷ × · − √ ‰ ⊗ ⊕ ⊖ ⊘ ⊙ ≤ ≥ ≦ ≧ ≨ ≩ ≺ ≻ ≼ ≽ ⊏ ⊐ ⊑ ⊒ ² ³ °
∠ ∟ ° ≅ ~ ‖ ⟂ ⫛
≡ ≜ ≈ ∝ ∞ ≪ ≫ ⌊⌋ ⌈⌉ ∘ ∏ ∐ ∑ ∧ ∨ ∩ ∪ ⨀ ⊕ ⊗ 𝖕 𝖖 𝖗 ⊲ ⊳
∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟
¬ ∨ ∧ ⊕ → ← ⇒ ⇐ ⇔ ∀ ∃ ∄ ∴ ∵ ⊤ ⊥ ⊢ ⊨ ⫤ ⊣ … ⋯ ⋮ ⋰ ⋱
∫ ∬ ∭ ∮ ∯ ∰ ∇ ∆ δ ∂ ℱ ℒ ℓ
𝛢𝛼 𝛣𝛽 𝛤𝛾 𝛥𝛿 𝛦𝜀𝜖 𝛧𝜁 𝛨𝜂 𝛩𝜃𝜗 𝛪𝜄 𝛫𝜅 𝛬𝜆 𝛭𝜇 𝛮𝜈 𝛯𝜉 𝛰𝜊 𝛱𝜋 𝛲𝜌 𝛴𝜎𝜍 𝛵𝜏 𝛶𝜐 𝛷𝜙𝜑 𝛸𝜒 𝛹𝜓 𝛺𝜔