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Forum: Hardware 2021-03-08, 15:39
Replies: 15
Views: 1,679
Posted By Primeinator
I imagine then that the 6900 XT is similar enough...

I imagine then that the 6900 XT is similar enough it would be plagued with a similar problem?
Forum: Hardware 2021-03-07, 15:24
Replies: 15
Views: 1,679
Posted By Primeinator
*googles 'CU's* What is the significance of...

*googles 'CU's*
What is the significance of this? Per the link it looks like Xyzzy was getting the expected microseconds/iteration George provided in his link... or should it have been faster than...
Forum: Hardware 2021-03-06, 19:04
Replies: 15
Views: 1,679
Posted By Primeinator
It looks like the 6900 XT is one of these "Big...

It looks like the 6900 XT is one of these "Big Navi"? What kind of issues did he/she have?
Forum: Hardware 2021-03-05, 10:38
Replies: 15
Views: 1,679
Posted By Primeinator
Ah I was curious looking at the GPU benchmarks...

Ah I was curious looking at the GPU benchmarks above. For instance the 6900 XT has higher GHz-D/D than the Radeon VII but lower GFLOPS (for double precision). The Titan V has substantially higher...
Forum: Hardware 2021-03-05, 06:23
Replies: 15
Views: 1,679
Posted By Primeinator
Actually, which is more important for turning out...

Actually, which is more important for turning out a PRP test faster? GFLOPS (and what is the difference between SP or DP) or GHz-days/day?
Forum: Hardware 2021-03-05, 03:30
Replies: 15
Views: 1,679
Posted By Primeinator
Wow. That A100 SXM4 looks absolutely amazing. ...

Wow. That A100 SXM4 looks absolutely amazing. Seems like you cannot buy it standalone though. Nor could I afford it at the moment. The Radeon RX 6900 XT vs 6800 XT (compared to regular 6800) seem...
Forum: Hardware 2021-03-04, 11:19
Replies: 15
Views: 1,679
Posted By Primeinator
CPUs and GPUs (Oh My)

Hey, all. I am starting to look into different options for a custom built system. I am aware that for GPUs the Radeon VII is one of the best for PRP testing. With that in mind how do these...
Forum: Lounge 2021-02-25, 22:25
Replies: 212
Views: 36,135
Posted By Primeinator
Oh lord. I'm not sure I can come up with three. ...

Oh lord. I'm not sure I can come up with three. Be decisive, unless at a brewery, then a 3 oz pour of all the options! Flight, anyone?

Edit: Who doesn't want a flight of Mersenne primes? I...
Forum: Lounge 2021-02-25, 22:09
Replies: 212
Views: 36,135
Posted By Primeinator
I'm not sure what I did? Other than I forgot to...

I'm not sure what I did? Other than I forgot to post a date. It did not look like it had been guessed based upon the compilation post a few pages back.
Forum: Lounge 2021-02-25, 21:53
Replies: 212
Views: 36,135
Posted By Primeinator
M102218101, March 2021 M103103437, March 2022 ...

M102218101, March 2021
M103103437, March 2022
M104115637, August 2024
Forum: Information & Answers 2021-02-25, 14:39
Replies: 20
Views: 1,006
Posted By Primeinator
I'm into self-deprecation and/or am jaded by...

I'm into self-deprecation and/or am jaded by asking questions on this forum years ago and reading responses from Dr. Silverman.
I sincerely appreciate the responses from people on this forum so...
Forum: Information & Answers 2021-02-25, 03:14
Replies: 20
Views: 1,006
Posted By Primeinator
The PRP test does not give a definitive answer on...

The PRP test does not give a definitive answer on primality but can tell you a number is composite. Proving primality must be done by the LL. Someone more knowledgeable than myself can answer your...
Forum: Information & Answers 2021-02-25, 01:20
Replies: 20
Views: 1,006
Posted By Primeinator
You are correct. This is an error. Can this...

You are correct. This is an error. Can this factorial expression be simplified?

Edit: nice mega Pidgeot
Forum: Information & Answers 2021-02-24, 22:32
Replies: 20
Views: 1,006
Posted By Primeinator
Again, I am sorry for my idiocy and failure to...

Again, I am sorry for my idiocy and failure to grasp what should be basic algebra.

I understand (n-k+1)!/k! is divisible by n but I do not see how this = 0 (mod n)
Forum: Information & Answers 2021-02-24, 22:10
Replies: 20
Views: 1,006
Posted By Primeinator
That makes sense and reading on the nCk notation...

That makes sense and reading on the nCk notation by definition n > k, which I was not aware of.



I simplify nCk = n!/(k!(n-k)!) to (n-k+1)!/k! so this makes sense as well.
Forum: Information & Answers 2021-02-24, 21:06
Replies: 20
Views: 1,006
Posted By Primeinator
Yes, though I do not remember applying it...

Yes, though I do not remember applying it extremely extensively or time has dulled my memory. I do not recall using the nCk notation. I do somewhat recall n! / (k!(n-k)!) though your point as to why...
Forum: Information & Answers 2021-02-24, 20:35
Replies: 20
Views: 1,006
Posted By Primeinator
This was the state of things when I took my...

This was the state of things when I took my "leave". Sieving, the two stages of P-1, and then LL test with a DC LL test later. It's truly awesome to see the ingenuity some people possess and how...
Forum: Information & Answers 2021-02-24, 20:25
Replies: 8
Views: 547
Posted By Primeinator
Ouch. Certainly feasible, but having multiple of...

Ouch. Certainly feasible, but having multiple of them won't be possible in the next couple months. If I am unable to get one of these (it seems they have been discontinued) what is a good...
Forum: Information & Answers 2021-02-24, 19:40
Replies: 20
Views: 1,006
Posted By Primeinator
Fundamental Question(s) on PRP Testing

I am trying to do some reading on PRP testing to better understand the gist of how it works and why it allows us to save a significant amount of candidates from being LL tested. I have found the...
Forum: Information & Answers 2021-02-23, 22:51
Replies: 8
Views: 547
Posted By Primeinator
Thank you! I've certainly missed it. ...

Thank you! I've certainly missed it.



Will P95 (or GPU Owl) immediately go into the LL in this instance? Or does the server provide it to another system/user?



Great. I can chip in. No...
Forum: Information & Answers 2021-02-23, 21:35
Replies: 8
Views: 547
Posted By Primeinator
Back after a long hiatus. Who left all the lights on?

I hope everyone here has been doing as well as possible over the last year and that you, your family, and your friends have avoided the worst of the pandemic- both the direct assault on human life...
Forum: Lounge 2016-04-02, 05:19
Replies: 13
Views: 1,446
Posted By Primeinator
Pete is my hero. That is incredible.

Pete is my hero. That is incredible.
Forum: Lounge 2016-03-31, 04:55
Replies: 1,664
Views: 118,624
Posted By Primeinator
You are very welcome. I am no help when it comes...

You are very welcome. I am no help when it comes to the mathematics on this forum as much of it is above my pay grade :smile:. My knowledge base is much more on the medical and biological side of...
Forum: Lounge 2016-03-31, 03:31
Replies: 1,664
Views: 118,624
Posted By Primeinator
There are several drugs that can help with uric...

There are several drugs that can help with uric acid generation in the body. Perhaps the most "benign" of these are a class called xanthine oxidase inhibitors. One such example is a drug called...
Forum: Lounge 2016-03-31, 02:29
Replies: 1,664
Views: 118,624
Posted By Primeinator
This is a somewhat unusual presentation for gout...

This is a somewhat unusual presentation for gout (not that I don't believe their diagnosis especially in the setting of elevated uric acid in the serum). Did they entertain the idea of Doppler...
Showing results 1 to 25 of 915

 
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