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Search: Posts Made By: chalsall
Forum: Data 2021-04-22, 14:35
Replies: 429
Views: 61,198
Posted By chalsall
Thank you for your efforts. But for my ranges, I...

Thank you for your efforts. But for my ranges, I think doing deep P-1'ing is more cost-effective.
Forum: Linux 2021-04-22, 14:29
Replies: 8
Views: 94
Posted By chalsall
There are many options for this kind of thing,...

There are many options for this kind of thing, including "nohup", "session" etc.

Personally I just do something like "mprime -d >> mprime.log < /dev/null 2> /dev/null &" and then exit. This...
Forum: Data 2021-04-22, 00:13
Replies: 429
Views: 61,198
Posted By chalsall
Coolness! Thanks!!! And you know where this...

Coolness! Thanks!!!

And you know where this leads, don't you...?

You'll now have to do a cost/benefit analysis to determine where the economic cross-over points are between ECM, deep TF'ing,...
Forum: Data 2021-04-21, 20:31
Replies: 429
Views: 61,198
Posted By chalsall
Do you have any gut feeling for how accurate the...

Do you have any gut feeling for how accurate the estimates are?
Forum: Data 2021-04-21, 20:12
Replies: 429
Views: 61,198
Posted By chalsall
Initial emprical data from five runs...

These next four runs (with different B1s as given by axn) were run on GCE 8 vcore instances with 30G of RAM available to them:


[Work thread Apr 21 17:19] P+1 on M42600221 with B1=500000, B2=TBD...
Forum: Data 2021-04-21, 19:02
Replies: 429
Views: 61,198
Posted By chalsall
OK... Here are the log entries from my fastest...

OK... Here are the log entries from my fastest machine for those who understand the maths behind all this. The probability percentage is indeed low... This is for 42600139...
Forum: Data 2021-04-21, 17:23
Replies: 429
Views: 61,198
Posted By chalsall
OK. Thanks a lot! The first five are running...

OK. Thanks a lot! The first five are running now.

Seems like there's still some Primenet work to do though... :wink:

[Main thread Apr 21 17:19] Mersenne number primality test program version...
Forum: Data 2021-04-21, 16:21
Replies: 429
Views: 61,198
Posted By chalsall
I got the impression he had stopped at 75. But,...

I got the impression he had stopped at 75. But, good point; that range can be cleared by going to 76.

axn, please give me 300# in 42.6M instead. Thanks.
Forum: Data 2021-04-21, 16:11
Replies: 429
Views: 61,198
Posted By chalsall
Let's run the experiment in the 31.5M range. If...

Let's run the experiment in the 31.5M range. If you could give me let's say 300# assignments so we get a reasonable sample set. Please make them reasonably aggressive (read: good probability of a...
Forum: Data 2021-04-21, 14:31
Replies: 429
Views: 61,198
Posted By chalsall
Indeed. Thanks George! I don't have many...

Indeed. Thanks George!

I don't have many human cycles at the moment, but I do have a few CPU cycles to burn... Could anyone give me an example of a P+1 worktodo line that would be appropriate...
Forum: Lounge 2021-04-20, 23:18
Replies: 1,357
Views: 113,899
Posted By chalsall
Sure. Longer if cryogenics is brought to bear...

Sure. Longer if cryogenics is brought to bear...
Forum: Lounge 2021-04-20, 21:24
Replies: 1,357
Views: 113,899
Posted By chalsall
For this particular data point, no. Evolution...

For this particular data point, no. Evolution isn't aided. But in the aggregate, it is (read: some "non-believers" *will* be removed from the pool).

Keep in your model that most males can...
Forum: Lounge 2021-04-20, 19:30
Replies: 1,357
Views: 113,899
Posted By chalsall
Evolution in action.

Evolution in action.
Forum: Factoring 2021-04-20, 18:32
Replies: 32
Views: 892
Posted By chalsall
Careful! It can become a bit addictive... I'm...

Careful! It can become a bit addictive... I'm currently doing TF and P-1'ing in 23 or so different consoles spread across dozens of real and VMs controlled by about a half dozen GUI environments in...
Forum: Hardware 2021-04-19, 16:48
Replies: 6
Views: 287
Posted By chalsall
Sigh... :sad: I read this article...

Sigh... :sad:

I read this article (https://www.tomshardware.com/news/environmentalists-shake-finger-at-finger-lakes-bitcoin-mining) last night, and I just had to shake my head...
Forum: Science & Technology 2021-04-18, 15:49
Replies: 53
Views: 11,214
Posted By chalsall
If I had one, I would have used it! The...

If I had one, I would have used it! The power-washer ended up being the best available tool on hand. Also, rather than just throwing it up in the air to fall somewhere else, it turned the ash into...
Forum: Science & Technology 2021-04-15, 00:08
Replies: 53
Views: 11,214
Posted By chalsall
Photos of ash...

So, someone asked to see what all this ash looks like...
Forum: Science & Technology 2021-04-14, 23:05
Replies: 53
Views: 11,214
Posted By chalsall
Yup... :sad: I've now burnt out a shop-vac,...

Yup... :sad:

I've now burnt out a shop-vac, destroyed a hair-drier (drop it on my toe while blowing dust; the impeller exploded), and just finished a day of hauling water up to the roof to feed a...
Forum: Science & Technology 2021-04-12, 23:20
Replies: 53
Views: 11,214
Posted By chalsall
Yeah... Happen to have a good supply of N95...

Yeah... Happen to have a good supply of N95 masks in inventory... :smile:

The biggest issue at the moment is no "mains" water. Have backup reserves, of course, but hauling water up two flights...
Forum: GPU to 72 2021-04-12, 22:01
Replies: 5,159
Views: 318,677
Posted By chalsall
And bug reports which are more detailed than "it...

And bug reports which are more detailed than "it doesn't work" are greatly appreciated. Seriously. :smile:



I am equally grateful for this community. There's some very cool talent around...
Forum: Miscellaneous Math 2021-04-12, 21:01
Replies: 83
Views: 3,373
Posted By chalsall
I thought you said earlier that your mommy and...

I thought you said earlier that your mommy and daddy bought you your kit.



They became internationally known. For a very brief period of time. ~15 minutes of fame...

It is worth noting...
Forum: GPU to 72 2021-04-12, 20:53
Replies: 5,159
Views: 318,677
Posted By chalsall
Probably because of some "tech debt". GPU72...

Probably because of some "tech debt".

GPU72 was supposed to be temporary. I never imagined we'd be into the >100M range when the code was started. There are many stupid artificial "where"...
Forum: Science & Technology 2021-04-12, 20:11
Replies: 53
Views: 11,214
Posted By chalsall
Yeah. Bloody annoying... Our house has flat...

Yeah. Bloody annoying...

Our house has flat roofs and many inaccessible ledges. Spent a good part of yesterday sweeping, shop-vacuuming, and power-washing the very fine dust. Only to have to do...
Forum: Science & Technology 2021-04-10, 19:04
Replies: 53
Views: 11,214
Posted By chalsall
Nope. I immigrated in 2001. But friends of...

Nope. I immigrated in 2001.

But friends of mine were. It was, reportedly, amazingly bad!
Forum: Science & Technology 2021-04-10, 14:55
Replies: 53
Views: 11,214
Posted By chalsall
Yeah. We're 190 km to the east of Saint Vincent,...

Yeah. We're 190 km to the east of Saint Vincent, and it is so dark it is as if it is dusk.

The cats are freaking out! So are some of the humans...
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