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Search: Posts Made By: henryzz
Forum: Hardware 2020-11-27, 20:51
Replies: 18
Views: 789
Posted By henryzz
mlucas running arm code is the way forward. I...

mlucas running arm code is the way forward. I would hope it would run quite well.
Forum: Puzzles 2020-11-27, 14:00
Replies: 34
Views: 860
Posted By henryzz
Very impressive Note this can be converted...

Very impressive

Note this can be converted to 4 of each quite easily:
2020 = 666 + 666 + 666 + sqrt(666 - 13*(13+13/13))

It would surprise me if these are beaten
Forum: Prime Gap Searches 2020-11-27, 13:58
Replies: 200
Sticky: Prime Gap News
Views: 28,878
Posted By henryzz
Have just submitted 177 new gaps of which 23 are...

Have just submitted 177 new gaps of which 23 are new gap lengths(assuming I counted correctly). This might take a while for the queue to clear.

How deep does Danaj's surround_primes function sieve...
Forum: Factoring 2020-11-26, 16:02
Replies: 800
Views: 59,860
Posted By henryzz
I was under the impression that there was...

I was under the impression that there was codepaths for lesser CPUs.
Forum: Factoring 2020-11-26, 12:56
Replies: 800
Views: 59,860
Posted By henryzz
Whatever you do I would suggest not doing the...

Whatever you do I would suggest not doing the full ecm for each level. Doing half a level gives 39.3% chance of finding a factor at the level(and more for smaller). The full level is 63.2% so the...
Forum: Puzzles 2020-11-26, 12:08
Replies: 34
Views: 860
Posted By henryzz
Was trying to avoid that

Was trying to avoid that
Forum: Puzzles 2020-11-25, 20:32
Replies: 34
Views: 860
Posted By henryzz
I realized the first answer could have half its...

I realized the first answer could have half its 13s converted to any number. In fact, only 2 need to be 13s.

Using 2^11 was a nice solution.

9 of each using factorials...
Forum: Puzzles 2020-11-25, 17:39
Replies: 34
Views: 860
Posted By henryzz
Not much of a record but the first to use ^ ...

Not much of a record but the first to use ^
(13+13+13+13)/13 + (13+13/13)*(13-13/13)^((13+13)/13)


7 of each
(666+666+666+666)/666 + (13+666/666)*(13-13/13)^((13+13)/13)
Forum: Hardware 2020-11-23, 19:11
Replies: 831
Views: 129,081
Posted By henryzz
Are you able to saturate memory bandwidth without...

Are you able to saturate memory bandwidth without AVX512? If so how does power consumption compare at the lowest frequency that maxes bandwidth?
Forum: Puzzles 2020-11-09, 14:19
Replies: 31
Views: 1,477
Posted By henryzz
I would have thought that consulting jewellers on...

I would have thought that consulting jewellers on this sort of thing could be a little hit and miss. A negative from one doesn't mean too much unless it matches their speciality or something like...
Forum: Hardware 2020-11-09, 14:10
Replies: 74
Views: 5,547
Posted By henryzz
I think the whole channels thing will have a bit...

I think the whole channels thing will have a bit of a shakeup with DDR5. There are 2 32/40- bit channels in each DIMM for DDR5. Hopefully, this will lead to CPU designs being more flexible with the...
Forum: Prime Gap Searches 2020-11-07, 23:13
Replies: 200
Sticky: Prime Gap News
Views: 28,878
Posted By henryzz
How often are tables such as...

How often are tables such as https://primegap-list-project.github.io/lists/top-discoverers/ updated? I don't seem to have made it onto the list
Forum: Prime Gap Searches 2020-11-04, 11:45
Replies: 113
Views: 13,696
Posted By henryzz
I was more thinking about fairly deep sieving...

I was more thinking about fairly deep sieving rather than what is effectively a wheel sieve. I have coded a crude sieve that can do things like sieve A=1 to 1M for x=-50k to 50k up to p=100k in about...
Forum: Prime Gap Searches 2020-11-02, 17:17
Replies: 200
Sticky: Prime Gap News
Views: 28,878
Posted By henryzz
Just submitted a new record 133364, C??, 21.8868,...

Just submitted a new record 133364, C??, 21.8868, D.Stevens, 2020-11-02, 2647, 1559*6199#/11#-67062

Does it change from C?? to C?P on its own?
Forum: Factoring 2020-11-02, 14:12
Replies: 800
Views: 59,860
Posted By henryzz
The numbers in this file won't disappear. New...

The numbers in this file won't disappear. New ones will be added.
Forum: Prime Gap Searches 2020-11-01, 11:36
Replies: 113
Views: 13,696
Posted By henryzz
It strikes me that we are sieving the wrong...

It strikes me that we are sieving the wrong dimension. In A*p#/d+x we currently sieve over x. Why don't we sieve over A? For each A we will count how many sieves over x it has survived. The As with...
Forum: Prime Gap Searches 2020-10-30, 10:53
Replies: 113
Views: 13,696
Posted By henryzz
Very interesting work on optimizing the choice of...

Very interesting work on optimizing the choice of d#. Can't wait to try this new code.

This has made me realize that I don't know the recommended scripts for gap searching currently....
Forum: Software 2020-10-29, 11:48
Replies: 35
Views: 4,900
Posted By henryzz
Is there a possibility of running WSL?

Is there a possibility of running WSL?
Forum: Factoring 2020-10-28, 09:52
Replies: 800
Views: 59,860
Posted By henryzz
There is probably more low hanging fruit...

There is probably more low hanging fruit currently due to that big RB being cleared.
Forum: Five or Bust - The Dual Sierpinski Problem 2020-10-21, 10:25
Replies: 90
Views: 89,122
Posted By henryzz
Not much use posting that without the search...

Not much use posting that without the search limits
Forum: PrimeNet 2020-10-20, 20:10
Replies: 2,041
Views: 162,156
Posted By henryzz
How much complexity is support for v4 clients...

How much complexity is support for v4 clients adding now? Is that holding us back in any way? They aren't providing much in the way of results any more.
Forum: Factoring 2020-10-19, 22:04
Replies: 61
Views: 3,484
Posted By henryzz
Or better still, use tee

Or better still, use tee
Forum: Hardware 2020-10-17, 16:12
Replies: 9
Views: 662
Posted By henryzz
I believe .net core is much better at running on...

I believe .net core is much better at running on linux
Forum: Hardware 2020-10-14, 14:16
Replies: 26
Views: 1,799
Posted By henryzz
It would be interesting to see how many cores and...

It would be interesting to see how many cores and at what speed provide the maximum efficiency(lowest TDP limit) at the minimum clock speed that reaches 130 iter/sec
Forum: Math 2020-10-14, 12:37
Replies: 12
Views: 712
Posted By henryzz
For 2^n+1 to be prime n must be a power of 2...

For 2^n+1 to be prime n must be a power of 2 https://mathworld.wolfram.com/FermatNumber.html has a proof of this.
Showing results 1 to 25 of 1000

 
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