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Search: Posts Made By: diep
Forum: Lounge 2021-02-17, 17:42
Replies: 1,072
Views: 68,580
Posted By diep
I would guess that's possibly secret - because...

I would guess that's possibly secret - because other than NASA not many other nations so far managed to land a rover there...

So they show a few simple adapters and that's it.

(edit: AFAIK all...
Forum: Lounge 2021-02-17, 17:18
Replies: 1,072
Views: 68,580
Posted By diep
Cool video. Note i'm a bit amazed he shows a...

Cool video. Note i'm a bit amazed he shows a thing he designed there - i design stuff like that so to speak in 1 day in CAD here - with probably far more primitive CAD as i can't afford the better...
Forum: GPU Computing 2021-02-12, 20:41
Replies: 372
Views: 43,086
Posted By diep
couldn't have chosen better time to release it...

couldn't have chosen better time to release it was last night -14C outside here and had to turn up the heat in this office instead of profit from the watercooled gpu cooling the office!
Forum: Lounge 2021-02-03, 19:03
Replies: 1,072
Views: 68,580
Posted By diep
Manned mission to Mars is order 10 trillion...

Manned mission to Mars is order 10 trillion dollar - except if you want to 'throw away the people' with certainty. In short if you do not care they get killed with 99.99% certainty very quickly...
Forum: Lounge 2021-02-03, 18:38
Replies: 1,072
Views: 68,580
Posted By diep
I'm not a fan of humans further away than low...

I'm not a fan of humans further away than low orbit - as that's just throwing good money after bad money. (the burden it lays at the taxpayers because our technology is not so advanced yet, that...
Forum: Software 2020-12-19, 01:44
Replies: 48
Views: 10,777
Posted By diep
The rounding error seems to sometimes happen when...

The rounding error seems to sometimes happen when the FFT length is not far from taking the next increase. As i'm not so long inside the next increase i feel pretty safe there.

So for example the...
Forum: Software 2020-12-19, 00:02
Replies: 48
Views: 10,777
Posted By diep
Had restarted all 4 times at the same time now we...

Had restarted all 4 times at the same time now we see big improvement in timings the last few LLR's again at 2 processes (each proces gets 2 cores, the box has 8 in total), as we would expect because...
Forum: Software 2020-12-18, 23:59
Replies: 48
Views: 10,777
Posted By diep
As you see i compare timings from above the...

As you see i compare timings from above the boundary - so i compare the same FFT lengths with each other.

Restarting it's faster as VBCurtis explained why that's the case.
Forum: Software 2020-12-18, 15:47
Replies: 48
Views: 10,777
Posted By diep
I am running it in textmode nohupped of course -...

I am running it in textmode nohupped of course - not graphical.

Had restarted all the 4 processes. This specific proces now has 2 new outputs, see the last 2 outputs below. A lot faster again... ...
Forum: Software 2020-12-18, 02:48
Replies: 48
Views: 10,777
Posted By diep
Ok testing here at the Xeons i notice with LLR...

Ok testing here at the Xeons i notice with LLR that if an exponent has a problem that it probably is doing something else then slowing it down. Now that's ok if 1 exponent has a problem that for this...
Forum: Lounge 2020-12-10, 00:40
Replies: 1,072
Views: 68,580
Posted By diep
From what i wrote to someone on my chat regarding...

From what i wrote to someone on my chat regarding starship sn8.

I design CNC machines
i act as if i know something about hardware design
i do not understand why starship sn8 has inside 1 tube 3...
Forum: Riesel Prime Search 2020-12-04, 19:17
Replies: 68
Views: 20,659
Posted By diep
Congrats on that one! Way further away than...

Congrats on that one!

Way further away than i had guessed!!

It had so many primes below 3.14M.

If we do math from there then it's 6.8M which is factor 2 and 11+M is really far away again....
Forum: Riesel Prime Search 2020-11-30, 20:45
Replies: 399
Views: 59,632
Posted By diep
How to use the script? What do i type on the...

How to use the script?
What do i type on the command line?

something like this?

python happy.py 32767 5800000
Forum: Lounge 2020-11-30, 19:42
Replies: 1,072
Views: 68,580
Posted By diep
Wikipedia not too optimistic about VASIMR. How...

Wikipedia not too optimistic about VASIMR. How comes?

https://en.wikipedia.org/wiki/Variable_Specific_Impulse_Magnetoplasma_Rocket
Forum: Lounge 2020-11-30, 18:15
Replies: 1,072
Views: 68,580
Posted By diep
Money well spent. It's possible some years ago...

Money well spent. It's possible some years ago they suddenly saw so called 'debris' or junk in space actively move - hidden military satellites - designed to sabotage other satellites. With this you...
Forum: Riesel Prime Search 2020-11-27, 10:02
Replies: 399
Views: 59,632
Posted By diep
Kar, c'est bon! You can be sure i will...

Kar, c'est bon!

You can be sure i will report it if there is a new one above n=1569 :)

Please note for the few who might not know: testspeed of LLR with larger k's is a lot slower than small...
Forum: Riesel Prime Search 2020-11-27, 02:25
Replies: 399
Views: 59,632
Posted By diep
Happy - you sure you can't do better with a stick...

Happy - you sure you can't do better with a stick in the sand than that?
Forum: Riesel Prime Search 2020-11-27, 01:33
Replies: 399
Views: 59,632
Posted By diep
Given: k * 2^n - 1 The risk you run with...

Given: k * 2^n - 1

The risk you run with low-weights is that you do not find a prime at all,
because when the number of bits of the exponent n increases, the testing time goes exponentially up...
Forum: Software 2020-11-24, 01:19
Replies: 48
Views: 10,777
Posted By diep
Ah yes -c much better than the mask as easier to...

Ah yes -c much better than the mask as easier to read.
Forum: Software 2020-11-24, 01:14
Replies: 48
Views: 10,777
Posted By diep
Now that is interesting! That solves the...

Now that is interesting!

That solves the problem right away!!

<PRE>
nohup taskset -c 0x00000003f /home/diep/89/sllr64 &
</PRE>
And then hope it works :)
Forum: Software 2020-11-23, 15:29
Replies: 48
Views: 10,777
Posted By diep
Good Morning! On a NUMA system i notice a...

Good Morning!

On a NUMA system i notice a huge performance issue with LLR.

let's first explain the simple problem.

Probably we all know what numa systems are. memory at other sockets (or...
Forum: Riesel Prime Search 2020-11-21, 19:40
Replies: 93
Views: 29,884
Posted By diep
Note some of the shortened sieve files seem to...

Note some of the shortened sieve files seem to not work for download.
Forum: Probability & Probabilistic Number Theory 2020-11-21, 17:14
Replies: 0
Views: 2,303
Posted By diep
Sieving success as a heuristic for odds of a prime

I'm busy sieving 32767 * 2 ^ n - 1 very deeply now (and busy testing it at the first few millions of bits or so - each time narrowing down the boundaries of the sieve domain).

Well deeply -that's...
Forum: Riesel Prime Search 2020-11-21, 15:08
Replies: 68
Views: 20,659
Posted By diep
finished thanks to big work of Paul until 7M. I'm...

finished thanks to big work of Paul until 7M. I'm still having a few cores above 7M.

If someone wants to take over let me know. For my current (outdated) hardware i'm at the limits of what is...
Forum: Riesel Prime Search 2020-11-21, 15:02
Replies: 1,021
Views: 123,200
Posted By diep
Too bad you didn't find anything k=89 * 2^n - 1...

Too bad you didn't find anything k=89 * 2^n - 1 until 4M.

Taking over k=89 then. will search it then from 4M to 6M (or maybe 7M) and then release it again probably will let you know when i release...
Showing results 1 to 25 of 704

 
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