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Search: Posts Made By: ryanp
Forum: And now for something completely different 2022-05-17, 21:50
Replies: 106
Views: 4,655
Posted By ryanp
How sensitive is ecpp-mpi to latency between...

How sensitive is ecpp-mpi to latency between physical hosts?

For example, how much performance degradation would there be if some hosts are 20-30ms from the node on which mpirun ecpp-mpi ... is...
Forum: And now for something completely different 2022-05-17, 19:50
Replies: 256
Views: 54,134
Posted By ryanp
Yep, hoping to find the first CK megaprime. ...

Yep, hoping to find the first CK megaprime.


Approximately 16K tests.
Forum: And now for something completely different 2022-05-17, 18:35
Replies: 256
Views: 54,134
Posted By ryanp
A few more for the wiki: ...

A few more for the wiki:

https://primes.utm.edu/primes/page.php?id=133928
https://primes.utm.edu/primes/page.php?id=133929
https://primes.utm.edu/primes/page.php?id=133930
Forum: And now for something completely different 2022-05-16, 20:18
Replies: 332
Views: 62,773
Posted By ryanp
Think I'm already good, but thanks!

Think I'm already good, but thanks!
Forum: Aliquot Sequences 2022-05-16, 11:21
Replies: 486
Views: 73,211
Posted By ryanp
Releasing the sequence back at i1720. I've done...

Releasing the sequence back at i1720. I've done 80K ECM curves on the c193 at B1=26e7.
Forum: Aliquot Sequences 2022-05-14, 22:00
Replies: 486
Views: 73,211
Posted By ryanp
I'm pushing it a bit further...

I'm pushing it a bit further...
Forum: And now for something completely different 2022-05-14, 16:12
Replies: 332
Views: 62,773
Posted By ryanp
Found a hit: (10^334568-1)^2-2...

Found a hit: (10^334568-1)^2-2 (https://primes.utm.edu/primes/page.php?id=133928).
Forum: And now for something completely different 2022-05-13, 22:29
Replies: 332
Views: 62,773
Posted By ryanp
I'd like to take base 10 starting at 250K. Not...

I'd like to take base 10 starting at 250K. Not sure how high I'll go, maybe to 500K.
Forum: Puzzles 2022-05-02, 17:12
Replies: 9
Views: 743
Posted By ryanp
Also feels too simple... my dumb (recursive)...

Also feels too simple... my dumb (recursive) Python program is about 15 lines and produces a solution for the first part in a few milliseconds, the second one in 3 seconds.
Forum: Lounge 2022-04-24, 17:29
Replies: 1,928
RIP
Views: 218,036
Posted By ryanp
My deepest condolences as well.

My deepest condolences as well.
Forum: XYYXF Project 2022-04-14, 14:00
Replies: 16
Views: 1,571
Posted By ryanp
2 hits so far: ...

2 hits so far:

http://factordb.com/index.php?id=1000000000044714162
http://factordb.com/index.php?id=1000000000044736161
Forum: XYYXF Project 2022-04-12, 16:43
Replies: 16
Views: 1,571
Posted By ryanp
Do you have a link to these 323 composites? I can...

Do you have a link to these 323 composites? I can hit them with some ECM at B1=26e7 or perhaps 85e7.
Forum: FactorDB 2022-04-08, 21:04
Replies: 542
Views: 100,924
Posted By ryanp
factordb.com seems like a very valuable resource...

factordb.com seems like a very valuable resource for the mathematical community. Is there anything we on the forum can do to support Markus? (Pooling money for server upgrades? Helping with coding/DB...
Forum: Factoring 2022-03-30, 22:29
Replies: 1,015
Views: 135,166
Posted By ryanp
I have now run 4200 curves on this c191 at...

I have now run 4200 curves on this c191 at B1=26e7, and will most likely continue running them for another day or two.
Forum: Factoring 2022-03-30, 19:43
Replies: 1,015
Views: 135,166
Posted By ryanp
There were 2 smallish factors that appeared to be...

There were 2 smallish factors that appeared to be missing from factordb. It's down to a c191 now.
Forum: Software 2022-03-16, 21:28
Replies: 570
Views: 41,841
Posted By ryanp
How close to "production-ready" is this build?...

How close to "production-ready" is this build? Specifically if I'm running P-1 on exponents near (or slightly above) the wavefront, on AMD Rome/Milan nodes with fairly limited RAM (8-16GB each) would...
Forum: Programming 2022-02-25, 14:28
Replies: 15
Views: 1,196
Posted By ryanp
At least on some installations, there's this...

At least on some installations, there's this command:

$ /usr/local/cuda-11.4/extras/demo_suite/deviceQuery
/usr/local/cuda-11.4/extras/demo_suite/deviceQuery Starting...

CUDA Device Query...
Forum: Data 2022-02-23, 17:50
Replies: 1,401
Views: 175,296
Posted By ryanp
The specific range that gpu72.com gave me was...

The specific range that gpu72.com gave me was 16535797 thru 16540661.
Forum: Factoring 2022-02-23, 17:10
Replies: 1,857
Views: 206,497
Posted By ryanp
Yeah... most if not all of these were me. :smile:...

Yeah... most if not all of these were me. :smile: I occasionally run ECM on unreserved composites on the list.

I've uploaded the GMP-ECM output here...
Forum: Data 2022-02-23, 14:36
Replies: 1,401
Views: 175,296
Posted By ryanp
I actually ended up running TF on a V100. For...

I actually ended up running TF on a V100. For this range I'm getting about 5200 GHz-d/day.
Forum: Data 2022-02-22, 19:20
Replies: 1,401
Views: 175,296
Posted By ryanp
I was thinking of TF with mfaktc.

I was thinking of TF with mfaktc.
Forum: Data 2022-02-22, 18:18
Replies: 1,401
Views: 175,296
Posted By ryanp
Is there a range I could throw an A100 at? ...

Is there a range I could throw an A100 at?

(Also... do you guys just use the manual_gpu_assignments page after taking a range?)
Forum: Riesel Prime Search 2022-02-11, 21:00
Replies: 307
Views: 59,338
Posted By ryanp
Update: search limit for [$]n! ± 1[/$] is now at...

Update: search limit for [$]n! ± 1[/$] is now at [$]n=400000[/$].
Forum: Riesel Prime Search 2022-02-01, 22:23
Replies: 307
Views: 59,338
Posted By ryanp
Update: I've completed testing/double-checking...

Update: I've completed testing/double-checking [$]n!-1[/$] and [$]n!+1[/$] for [$]150000 \le n \le 330000[/$] and can confirm the only primes are the 4 known...
Forum: And now for something completely different 2022-01-28, 14:13
Replies: 151
Views: 36,339
Posted By ryanp
Er, I dunno, I was just speaking in generalities....

Er, I dunno, I was just speaking in generalities.

In any case, the sieve to P=1e14 completed:

p=99996904837223, 3.826M p/sec, 717 factors found at 3744 sec per factor (last 7199 min), 99.9%...
Showing results 1 to 25 of 373

 
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