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Search: Posts Made By: Happy5214
Forum: Software 2020-09-26, 12:15
Replies: 61
Views: 3,906
Posted By Happy5214
On that subject, I'm about to implement the ARM...

On that subject, I'm about to implement the ARM version of fpu_powmod_4b_1n_4p() (it'll be the only one I'll have to spill registers for :sad:). Is there a reason why fpu_mulmod_4a_4b_4p() preloads...
Forum: Software 2020-09-20, 18:09
Replies: 10
Views: 303
Posted By Happy5214
Or that. :smile: Edit: I didn't actually...

Or that. :smile:

Edit: I didn't actually bother to read any of the page, so I didn't notice that.
Forum: Software 2020-09-20, 18:06
Replies: 10
Views: 303
Posted By Happy5214
Just replace the language code:...

Just replace the language code: https://docs.microsoft.com/en-us/cpp/build/configuring-programs-for-windows-xp?view=vs-2019
Forum: Aliquot Sequences 2020-09-20, 18:03
Replies: 598
Views: 26,613
Posted By Happy5214
21^80 went up quickly. Releasing. 21^82 is next. ...

21^80 went up quickly. Releasing. 21^82 is next.

I plan to continue 21 until at least 21^97, as those currently show sub-C120 cofactors on FactorDB.
Forum: Riesel Prime Search 2020-09-19, 13:26
Replies: 379
Views: 37,811
Posted By Happy5214
The (near-)Woodall k's listed in...

The (near-)Woodall k's listed in https://www.mersenneforum.org/showpost.php?p=550539&postcount=363, again except for k=1993191, have been completed to n=375k. The only prime found was...
Forum: Aliquot Sequences 2020-09-19, 12:42
Replies: 598
Views: 26,613
Posted By Happy5214
n=162 is done to i=54 (120 digits), and I'll stop...

n=162 is done to i=54 (120 digits), and I'll stop there. 21^80 is next.
Forum: Aliquot Sequences 2020-09-17, 09:00
Replies: 598
Views: 26,613
Posted By Happy5214
Releasing 21^78 (yes, I know I squared the 7). ...

Releasing 21^78 (yes, I know I squared the 7).

n=162 is complete to i=48, and 162^49 is in progress as I type. 21^80 will be next after I finish with 162.
Forum: Aliquot Sequences 2020-09-15, 18:30
Replies: 598
Views: 26,613
Posted By Happy5214
I am reserving (belatedly) n=162=2*3^4 to i=54...

I am reserving (belatedly) n=162=2*3^4 to i=54 (120 digits). I've already terminated everything up to 162^44 using a combination of FactorDB, local yafu, and Dario Alpern's browser ECM/QS calculator.
Forum: Aliquot Sequences 2020-09-11, 17:23
Replies: 598
Views: 26,613
Posted By Happy5214
English translation (I don't speak French): For...

English translation (I don't speak French): For 21^78, you have now lost the 3!

No, there are almost 100 terms I have yet to upload. I'll do that now. :wink:

Edit: They're up now. Look at the...
Forum: Aliquot Sequences 2020-09-11, 11:19
Replies: 598
Views: 26,613
Posted By Happy5214
Releasing 21^72, 21^74, and 21^76. 21^78 got...

Releasing 21^72, 21^74, and 21^76.

21^78 got down to 42 digits in the midst of three separate downdriver runs, but it's now at 117 digits with a 2^2*7 driver and a 3. :cry:
Forum: News 2020-09-05, 09:10
Replies: 296
Views: 18,687
Posted By Happy5214
I've gotten in the habit of doing personal...

I've gotten in the habit of doing personal archives in lzip (an LZMA-based compressor authored by Antonio Diaz Diaz, who maintains the GNU ed package I have an unhealthy obsession with), but to each...
Forum: Factoring 2020-09-05, 09:00
Replies: 498
Views: 57,621
Posted By Happy5214
This is (AFAIK) my personal ECM record: ...

This is (AFAIK) my personal ECM record:

122760214563986517403408012718327323026952918039831060056060998708807150488395908248657867219215800100789370303292314531669 =...
Forum: News 2020-09-04, 15:56
Replies: 296
Views: 18,687
Posted By Happy5214
Linux doesn't have the best support for the RAR...

Linux doesn't have the best support for the RAR format due to its proprietary nature. Just use zip or gzip for maximum support. If a higher compression ratio than DEFLATE is important enough, an...
Forum: Software 2020-08-25, 15:55
Replies: 61
Views: 3,906
Posted By Happy5214
The regular x86 fpu_powmod function does use...

The regular x86 fpu_powmod function does use right-to-left exponentiation, though the others use left-to-right. Should I rewrite the x86 version while I'm writing the ARM version?

Speaking of, the...
Forum: Software 2020-08-20, 10:24
Replies: 61
Views: 3,906
Posted By Happy5214
Registers d8-d15 are all callee-saved and can be...

Registers d8-d15 are all callee-saved and can be used. However, the disadvantage of not having an FPU stack is that saving the four 1/p values in d8-d11 would likely require a separate function,...
Forum: Software 2020-08-19, 18:26
Replies: 61
Views: 3,906
Posted By Happy5214
Needed correction added. :redface: I was too...

Needed correction added. :redface: I was too impatient to test M31, and smaller ones were too quick.
Forum: Software 2020-08-19, 15:26
Replies: 61
Views: 3,906
Posted By Happy5214
I finally got my hands on that ODROID C4. It...

I finally got my hands on that ODROID C4. It arrived Sunday (a day early). I tried to boot it Monday, only to find that the spare wireless keyboard I had allocated to it no longer worked. Today, I...
Forum: Aliquot Sequences 2020-08-18, 17:27
Replies: 598
Views: 26,613
Posted By Happy5214
Those can be attributed to me except for the...

Those can be attributed to me except for the really small ones (< 3e6) that are in the main project. Even for the ones I didn't do locally, I got the ball rolling on FactorDB. The difference with...
Forum: Aliquot Sequences 2020-08-17, 15:03
Replies: 598
Views: 26,613
Posted By Happy5214
My guess is that they were finished by FactorDB...

My guess is that they were finished by FactorDB automatically when the sequences were pulled by your script. I think they should be marked Anonymous.
Forum: FactorDB 2020-08-17, 13:39
Replies: 2
Views: 561
Posted By Happy5214
Some jurisdictions (notably the EU) do have...

Some jurisdictions (notably the EU) do have database rights that exist independently of copyright. https://en.wikipedia.org/wiki/Database_right
Forum: FactorDB 2020-08-17, 13:11
Replies: 2
Views: 561
Posted By Happy5214
Licensing

Has anyone thought of what the license for the FactorDB data should be? I don't see one posted, and a search of this forum (for "license") came up empty. It seems like a perfect candidate for CC0.
Forum: Aliquot Sequences 2020-08-17, 13:01
Replies: 598
Views: 26,613
Posted By Happy5214
I do not deserve any credit for any of the green...

I do not deserve any credit for any of the green n=21 sequences, as I did no work on those. I don't know if you (Jean-Luc) did them or if they were done directly on FactorDB, but those shouldn't be...
Forum: Riesel Prime Search 2020-08-16, 09:38
Replies: 379
Views: 37,811
Posted By Happy5214
k = 1549573

k=1549573 has now been tested to n=300k. The known prime at n=260199 (on Prime Pages) was re-confirmed, and no new primes were found. I am releasing this k. The LLR log is attached (it's version...
Forum: Software 2020-08-14, 11:41
Replies: 61
Views: 3,906
Posted By Happy5214
I think you're right. On the Cortex A55 that the...

I think you're right. On the Cortex A55 that the ODROID C4 uses, FMUL has a latency of 4 cycles and a throughput of 2 instructions/cycle, while a double-precision FDIV requires 22 cycles and a...
Forum: Software 2020-08-12, 16:59
Replies: 61
Views: 3,906
Posted By Happy5214
The ODROID N2+ model sold out before I could get...

The ODROID N2+ model sold out before I could get around to ordering it, so I bought the cheaper C4 instead. It hasn't shipped yet, so I'm still waiting for it. Meanwhile, I made an attempt at porting...
Showing results 1 to 25 of 376

 
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