Couldn't you have sub-team queues and have members of the sub-team draw from that pool?

The "leader" of the team could manage the queue, and handle moving work around at that level. If anything spurious came through, they could handle it or re-assign it or something like that. Not every team would like that option, but the serious ones would probably be willing to police themselves a little.

For point of reference - I figured out a week or so back that my Tiger dual-Athlon had a 50/50 chance of cracking a DES "56 bit" key in about a year - 2 years roughly to exaust the ENTIRE keyspace.

32 bit keys are NOT secure, by most current measures - though if the server limits the number of connects from a single IP to once a second or thereabouts, it should be secure enough.

Re: Malicious use of open source software
 

[quote="Prime95"]
We should be able to identify fake LL results without requiring triple-or-more-checking. One new feature I want to add is to make sure the double-check is sent to a different userid and different team. We should also make sure that at least one LL result comes from a trusted prime95 client - this should be easy as 99% of results come from prime95/mprime executables built by me.[/quote]

If the trusted client suffers from a hardware error, you'll still need a triple-check.

Nathan

Is this project dead?

No, waiting for spring. :)

There's a one in a billion chance that the LL and DC tests will both be wrong saying it's composite when it's really prime so that should help discourage triple checking if we've only tested several million. Thgere we have about 1 in 1000 error rate but if someone thinks up of something it could be even less likely. Also how do you change the speed of Prime95? I don't have to have it idle when I'm not using anything else.

Clowns789

P.S. Where did they get "95" in Prime95?

[quote]Also how do you change the speed of Prime95? I don't have to have it idle when I'm not using anything else.
[/quote]

There's no need to change it coz it won't speedup a test. If you're not using the computer all free cpu cycles will already go to prime95

[quote="clowns789"]P.S. Where did they get "95" in Prime95?[/quote] I believe it is because the program was originally written for Windows 95 several years ago, as opposed to being written for Windows 3.11 or some other such OS.

There's still a link to the Windows 3.1 version (prime.zip) on [url=http://www.mersenne.org/freesoft.htm]http://www.mersenne.org/freesoft.htm[/url]

[quote="http://www.mersenne.org/freesoft.htm"]Windows 3.1: Download prime.zip(202K). This version is not fully automatic, but you can use the PrimeNet server's web-based forms to get exponents and report results. ECM factoring is not supported. Version 18.1, last updated April 2, 1999.[/quote]

[quote="clowns789"]There's a one in a billion chance that the LL and DC tests will both be wrong saying it's composite when it's really prim[/quote]

In fact the historic error rate is a little under 2% which means that less than four exponents in every ten-thousand will return two incorrect results.

The probability that these two results will match is 1 in 2^64, i.e., negligable.

Regards

Daran

[quote="Mr. P-1"][quote="clowns789"]There's a one in a billion chance that the LL and DC tests will both be wrong saying it's composite when it's really prim[/quote]

In fact the historic error rate is a little under 2% which means that less than four exponents in every ten-thousand will return two incorrect results.

The probability that these two results will match is 1 in 2^64, i.e., negligable.

Regards

Daran[/quote]edit: never mind, I re-read your math...

Any word on the status of the new server? Still in the conceptual stage, preliminary work, etc?

Just a quick question for Mr P-1 (or anyone else knowledgeable): Do we know for certain that none of the matching sets of residues are both "common" errors (e.g. residue = 2) caused by hardware errors such as the one which created the M40 false alarm?

Waking up dead thread now... :grin:

[QUOTE=Complex33]Any word on the status of the new server? Still in the conceptual stage, preliminary work, etc?[/QUOTE]

Well I think it's now beyond preliminary work. There's an API, v5.mersenne.org actually points somwhere too!

Something official from Scott would be nice.

Also, I don't know if this board prunes threads, but if so, this thread is fairly important so I ask that one of the mods exclude it.

[QUOTE=PrimeCruncher]Waking up dead thread now... :grin:



Well I think it's now beyond preliminary work. There's an API, v5.mersenne.org actually points somwhere too!

Something official from Scott would be nice.

Also, I don't know if this board prunes threads, but if so, this thread is fairly important so I ask that one of the mods exclude it.[/QUOTE]

This thread has now the sticky attribute. :smile:

Luigi

[QUOTE=ET_]This thread has now the sticky attribute. :smile:[/QUOTE]

Excellent! Evil phase one of my evil plan is now evilly complete... :devil:

Now, there were some threads a while back dealing with v5. There was a statement of... something, nominations for a team, some programming issues, but these threads have all disappeared unfortunately. Is there any chance they are hiding in the database somewhere and can be retrieved?

[QUOTE=PrimeCruncher]Excellent! Evil phase one of my evil plan is now evilly complete... :devil:

Now, there were some threads a while back dealing with v5. There was a statement of... something, nominations for a team, some programming issues, but these threads have all disappeared unfortunately. Is there any chance they are hiding in the database somewhere and can be retrieved?[/QUOTE]

I asked Mike about it.

It seems that they vanished, I don't think they did by someone's request. Anyway, there were only few messages on it.

Try a search with "Old Man Primenet" on this thread... :wink:

Luigi

[QUOTE=ET_]I asked Mike about it.

It seems that they vanished, I don't think they did by someone's request. Anyway, there were only few messages on it.

Try a search with "Old Man Primenet" on this thread... :wink:[/QUOTE]

Too bad those threads are gone. It'd be nice to know who to go poke to find out about v5 status (other than OMP) :grin:

I've reread this entire thread. Yes I know I'm crazy. It doesn't really say anything about v5 development though.

[QUOTE=PrimeCruncher]Too bad those threads are gone. It'd be nice to know who to go poke to find out about v5 status (other than OMP) :grin:

I've reread this entire thread. Yes I know I'm crazy. It doesn't really say anything about v5 development though.[/QUOTE]

I remember that Scott was looking for someone to rework v5 into PHP and MySQL. There were five people in the development team. I wish they detached the messages to work without being distracted by users like you and me. :no:

Also, IIRC Scott was called for a new job in the first half of 2004. He's a busy man with little or no spare time at all...

But nobody here is calling him out, nor pushes for results. We'd only like to know if someone's still working on it.

Luigi

[QUOTE=ET_]I remember that Scott was looking for someone to rework v5 into PHP and MySQL. There were five people in the development team. I wish they detached the messages to work without being distracted by users like you and me.[/QUOTE]

PHP and MySQL, eh? Ironic that at the time of v5 team selection I knew nothing and had lots of time but now I've actually done some programming in both and have no time. Sigh. *shakes head*

Would someone PLEASE tell me if we can expect v5 any time this century? Because v4 is REALLY starting to make me :furious: :censored: :rant:

Not only does it like to tell Prime95/mprime/whatever that it took a result, except it doesn't record it, it now apparently likes to randomly change assignment types as well! As many of you are surely aware, I do only trial factoring. The server just randomly decided that one of those I-got-it-but-didn't-record-it exponents which I hadn't yet sent George the result for was no longer a TF; it now shows up as an LL test! :rant:

[QUOTE=PrimeCruncher]Would someone PLEASE tell me if we can expect v5 any time this century? Because v4 is REALLY starting to make me :furious: :censored: :rant:

Not only does it like to tell Prime95/mprime/whatever that it took a result, except it doesn't record it, it now apparently likes to randomly change assignment types as well! As many of you are surely aware, I do only trial factoring. The server just randomly decided that one of those I-got-it-but-didn't-record-it exponents which I hadn't yet sent George the result for was no longer a TF; it now shows up as an LL test! :rant:[/QUOTE]

Hmm. That sounds serious. The server didn't make up a fake residue, did it?

Also, I would add that the server can never make up its mind on how many MHz some of my computers have. When going to my individual accounts report, the numbers in the MHz column seem to change a lot.

[QUOTE=jinydu]Hmm. That sounds serious. The server didn't make up a fake residue, did it?[/QUOTE]

No, as far as the server is concerned, it's still in progress! It randomly changed the type AFTER it was assigned, AFTER the result was submitted but BEFORE the server recorded the result (which I have just PMed to George, asking him to record it manually)

Well the assignment type change may have to do with the "A Little Help Please" thread. nfortino and I compiled a list of exponents that are incorrectly marked on the server and George changed the status for all those exponents. Emailing him the results should make sure your account is propoerly credited. You can now go ahead and unreserve the exponent.

[QUOTE=garo]Well the assignment type change may have to do with the "A Little Help Please" thread. nfortino and I compiled a list of exponents that are incorrectly marked on the server and George changed the status for all those exponents. Emailing him the results should make sure your account is propoerly credited. You can now go ahead and unreserve the exponent.[/QUOTE]

Well, the exponent does indeed appear on that list. I PMed George with the result, and he has read the PM, but my account hasn't been credited. I can't unreserve the exponent either since its no longer in the worktodo.ini!

George is probably caught up with all the M42 stuff. He will get around to it eventually. You cna manually unreserve the exponent using the advanced menu.

We could eventually start a collection for the replacement of a new server also we could try to pay entropia to do code updates and stability just a thought....


waits for loss of head by prime cruncher...

[QUOTE=moo]We could eventually start a collection for the replacement of a new server also we could try to pay entropia to do code updates and stability just a thought....


waits for loss of head by prime cruncher...[/QUOTE]

Nah, I'm not gonna cut your head off. Maybe your fingers though (so you have no "voice" here :grin:).

We don't need to "update" the software we have now. That's why we have all these funky quirks now. We need brand new software, which is what v5 was supposed to be. Unfortunately, that effort seems to have stalled...

As far as new hardware, I don't even remember what v4 is running on now, so I have no idea...

EDIT:

[quote=Garo]George is probably caught up with all the M42 stuff. He will get around to it eventually. You cna manually unreserve the exponent using the advanced menu.[/quote]

Well, the exponent is gone from my individual report now, but no credit has appeared...

ok then ... start collection to pay for time needed to upgrade gimps software to v5 and finsih version 5

[QUOTE=moo]ok then ... start collection to pay for time needed to upgrade gimps software to v5 and finsih version 5[/QUOTE]

We didn't even need that a year or two ago when this was really being talked about and actually acted on. It's too bad I didn't know any PHP or SQL at the time, otherwise I would have volunteered to be part of the "team". I'm still not an expert on it, but I'm relatively familiar now.

Speaking of that team, does anyone even remember who was on it? The threads containing that knowledge have long since disappeared...

I quite honestly have no idea what needs to be done for v5 to get it working, but I volunteer my PHP/MySQL skills to make it happen.
Is anybody actively working on it now, or is it just a good idea laying dormant?

scott works on it sometimes idk how much tho....

heres his site scottkurowski.com
but theres something i found very intrestign
[url]http://scottkurowski.com/research_projects.htm[/url]
seams there are 2 dc projects hes working on
if you read top of page begins quote
You can email me to download my code projects as-is, though I may not support them. Min VC++ version required to read project files is given in [brackets]. I don't have much Perl code work but as I dig it up I'll post it. Note: some projects have license agreements you must agree to abide by in order to download them.

v5 news update:

Now v5.mersenne.org is running an MS IIS server that spits back:

[quote]No web site is configured at this address.[/quote]

The purpose of this thread is moot. v4 PrimeNet has been stablized and restored to full capacity, and v5 PrimeNet will be in beta within a few months and in early production use by May.

Yeah, it's much faster now! :banana: :showoff: