Forum: Information & Answers
2008-11-03, 01:49
|
|
Replies: 7
Views: 919
Hi Oleg.
I also have a Four socket Xeon MP...
Hi Oleg.
I also have a Four socket Xeon MP machine, with hyperthreading enabled. Thus I also have 8 "virtual" cores.
I'm running the linux 64 bit version, and I also found that the assignment...
|
|
Forum: Information & Answers
2008-10-30, 07:07
|
|
Replies: 8
Views: 631
Thankyou for your answers. I hope they might...
Thankyou for your answers. I hope they might appear on the account signup page, or get documented elsewhere.
I succeeded in creating a V5 account with the same userID, and notice there is now a...
|
|
Forum: Information & Answers
2008-10-30, 06:48
|
|
Replies: 8
Views: 631
Primenet V4 / V5 usernames
I've been using the V4 server for several years.
Now that GIMPS is migrating to the V5 server we have to create an account on the new server.
In the Register New Account page, we must select a...
|
|
Forum: News
2008-09-28, 02:17
|
|
Replies: 901
Views: 94,276
BBC news coverage of prime discovery.
Record discovery coverage by BBC:
http://news.bbc.co.uk/1/hi/world/americas/7640183.stm
On BBC website this story is currently number 2 in the "most popular stories right now" list which is...
|
|
Forum: Software
2007-03-15, 20:15
|
|
Replies: 12
Views: 1,217
I think you're right (and yes there can be...
I think you're right (and yes there can be shifting).
What I said was that once you had a test with a result "It's a prime" for a VERIFICATION test, it might be advantageous not to use the same...
|
|
Forum: Software
2007-03-13, 03:29
|
|
Replies: 22
Views: 2,064
Re Google summer of code projects...
Well in...
Re Google summer of code projects...
Well in my opinion I think that this project is traditionally focussed on projects with more open style licenses like GPL.
We know there are limitations in...
|
|
Forum: Software
2007-03-11, 15:33
|
|
Replies: 41
Views: 2,712
P4 3Ghz Northwood results detail
WITH HT *DISABLED* IN BIOS:
[Sun Mar 11 15:17:24 2007]
Compare your results to other computers at http://www.mersenne.org/bench.htm
Intel(R) Pentium(R) 4 CPU 3.00GHz
CPU speed: 2992.66 MHz,...
|
|
Forum: Software
2007-03-11, 14:57
|
|
Replies: 41
Views: 2,712
I have a single core Northwood Pentium 4 here...
I have a single core Northwood Pentium 4 here which has "hyperthreading" capability running Win XP Pro (and also Suse linux). 8KByte L1, 512KByte L2.
Most of the time I have hyperthreading turned...
|
|
Forum: Software
2007-03-11, 14:26
|
|
Replies: 12
Views: 1,217
You can't just choose an arbitrary starting...
You can't just choose an arbitrary starting point.
But, from http://primes.utm.edu/mersenne/
"(It is also possible to start with S(1)=10 and certain other values depending on p.) "
Note that...
|
|
Forum: Factoring
2007-03-11, 13:21
|
|
Replies: 8
Views: 1,149
Applications of factoring
One of the reasons people would like to be able to factor large products of 2 primes is to break the encryption techniques currently popular for e-commerce etc.
The guy from m-wave systems argued...
|
|
Forum: Software
2007-03-11, 13:12
|
|
Replies: 4
Views: 758
Hi Jason.
Unfortunately mprime uses the...
Hi Jason.
Unfortunately mprime uses the IDENTICAL assembly code that prime95 does, just linked in. The C code around it is for menus and to set up the data and call the fast part. Sorry it would...
|
|
Forum: Hardware
2007-03-01, 04:48
|
|
Replies: 24
Views: 3,072
IBM already did quantum computing in a lab.
...
IBM already did quantum computing in a lab.
The IBM 4 qubit machine factored 15 into 5 and 3 really useful ROFL.
This D-wave machine is only 16 qubits so still not useful for our size problems....
|
|
Forum: Hardware
2007-03-01, 03:36
|
|
Replies: 11
Views: 1,258
May I suggest some workarounds:
You could...
May I suggest some workarounds:
You could RENT a computer (either at commercial rates or from a friend). You pay them some amount monthly which you do not keep as an asset because it BELONGS to...
|
|
Forum: Lounge
2007-01-01, 01:40
|
|
Replies: 29
Views: 1,724
Happy New Year from me, also in UK, UTC/GMT...
Happy New Year from me, also in UK, UTC/GMT timezone (hour and a half late).
It's 2007, best wishes to everyone.
As Paul mentioned, there are high winds (including here in the North East of...
|
|
Forum: Hardware
2006-12-30, 08:34
|
|
Replies: 20
Views: 1,497
|
|
Forum: Hardware
2006-12-30, 07:32
|
|
Replies: 13
Views: 1,917
If your intended apps are math related, I would...
If your intended apps are math related, I would spend the extra on a Core2Duo rather than 9xx because of the better FP performance and improved power efficiency. The downside is it will cost you more...
|
|
Forum: Lounge
2006-12-25, 05:41
|
|
Replies: 17
Views: 3,285
|
|
Forum: Lounge
2006-12-16, 22:40
|
|
Replies: 118
Views: 8,656
|
|
Forum: Hardware
2006-12-08, 14:01
|
|
Replies: 25
Views: 2,679
|
|
Forum: Puzzles
2006-12-08, 13:19
|
|
Replies: 9
Views: 10,158
It was an achievement to be in the qualifiers...
It was an achievement to be in the qualifiers because there were over 12,000 entries to the competition.
Well I became quite proficient at estimating balls in a box with the help of MersenneForum...
|
|
Forum: Puzzles
2006-11-29, 06:05
|
|
Replies: 46
Views: 1,998
|
|
Forum: Puzzles
2006-11-29, 04:15
|
|
Replies: 46
Views: 1,998
Mally I don't think this is a very realistic...
Mally I don't think this is a very realistic problem.
The missile and plane speeds are unlikely to remain constant, for example because constant thrust would have more effect on the craft as it...
|
|
Forum: Puzzles
2006-11-29, 03:19
|
|
Replies: 9
Views: 10,158
Now I will explain my reason for asking.....
...
Now I will explain my reason for asking.....
I have already entered and been sucessful in a competition where we had to estimate the total number of balls in a car, which changed each week over 4...
|
|
Forum: Homework Help
2006-11-29, 02:53
|
|
Replies: 52
Views: 29,754
If we do indeed treat the problem as a pie or...
If we do indeed treat the problem as a pie or cake, that raises further possibilities.
If we take our knife and instead of holding the blade perpenticular to the surface disc, we can rotate the...
|
|
Forum: Puzzles
2006-11-29, 00:22
|
|
Replies: 9
Views: 10,158
|
