Mersenne Digest Monday, May 31 1999 Volume 01 : Number 565
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Date: Fri, 28 May 1999 21:22:27 -0700
From: "Scott Kurowski" <[EMAIL PROTECTED]>
Subject: Mersenne: MPrime v18.1 for FreeBSD 3.0 UNIX Released
Hi all,
The FreeBSD 3.0 version of MPrime 18.1 for Intel has been released for general
use. Many thanks to Nick Hilliard for doing the port.
Download locations (U.S. California):
http://entropia.com/gimps/mprime-18.1-freebsd3.0.tar.gz
ftp://entropia.com/gimps/mprime-18.1-freebsd3.0.tar.gz
v18.1 source code (taken from source.zip) modified for Intel UNIX is available
at:
http://entropia.com/gimps/mprime-18.1-unix.tar.gz
ftp://entropia.com/gimps/mprime-18.1-unix.tar.gz
The GIMPS download site above is also mirrored by:
ftp://ftp.iol.ie:/pub/gimps/ (Dublin Ireland)
ftp://193.61.169.253/gimps/software (U.K.)
If you are interested in beta testing a SCO Unixware (Intel) version, please
email me at [EMAIL PROTECTED]
Regards,
scott
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Date: Sat, 29 May 1999 01:02:23 -0400
From: Bryan Fullerton <[EMAIL PROTECTED]>
Subject: Re: Mersenne: MPrime v18.1 for FreeBSD 3.0 UNIX Released
On Fri, May 28, 1999 at 09:22:27PM -0700, Scott Kurowski <[EMAIL PROTECTED]> wrote:
>
> The GIMPS download site above is also mirrored by:
> ftp://ftp.iol.ie:/pub/gimps/ (Dublin Ireland)
> ftp://193.61.169.253/gimps/software (U.K.)
There are several other sites which also provide mirrors, listed on George's
downloads page at http://www.mersenne.org/freesoft.htm .
Bryan
- --
Bryan Fullerton http://www.samurai.com/
Core Competency
Samurai Consulting
"No, we don't do seppuku." Can you feel the Ohmu call?
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Date: Sat, 29 May 1999 12:55:26 -0600
From: "Blosser, Jeremy" <[EMAIL PROTECTED]>
Subject: Mersenne: Odd observation Part II
Hrm... I just looked at the rate my Quad Xeons are doing (2-Compaq 6500s and
a 7000), and they are getting .31sec/iteration. Yet my peiced together
Dual-412 (OC'd 300s) gets in the .21-.22 range... (same size FFT) Any
thoughts as to why the Xeons are doing so poorly? Their affinity is for
seperate processors (so they aren't jumping around). And I don't think that
cache differences are a problem (cuz they got 512k and 1024k respectively).
Any thoughts?
The only thing that came to mind was ECC cache or something?
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Date: Sat, 29 May 1999 22:52:17 -0700
From: "Aaron Schaufenbuel" <[EMAIL PROTECTED]>
Subject: Mersenne: Exponent Expration and stuff
I checked out an exponent tonight using the manual testing forms... My account
report says
that the exponent should be done in 183 days, but that it expires in 120 days. Is this
normal, because it dosen't sound right.
Just out of curiosity, has GIMPS shown any hit in performance since SETI@Home
started? I thought about switching projects, but stayed here because I figured SETI
whould have enough people and I didn't like the way it wasted cycles when the
screensaver wasen't running.
The kindof sad part of GIMPS is that since we live in a universe of finite time,
and primes are _infinite_ we can never even claim to have found even one millionth of
one percent, much less all of them. With SETI@Home, once contact is made (if ever) its
all over. At least we know we will never run out of work!
As far as the reward for finding a new primes goes, if my slow K6 actualy finds
one, George Woltman and Scott Kurowski will be getting at least $10,00 of it each...
if not more, because really, they did all the work. I only spent 3 or 4 minutes
downloading and installing the program.
As Spike Jones said in his lithiverse...
"Thank you very much, Lucas and Lehmer. May you and all GIMPSers live for all eternity
in mathematical nerdvana. Good night {8^D spike"
I coulden't have said it better my self (or anywhere close for that matter) and indeed
good night, its nearly 1 in the morning :)
Good Luck Everyone!!!!!
- ---Aaron Schauf---
[EMAIL PROTECTED]
ICQ# 3491535
*Insert good quote here* :)
Free web-based email, anytime, anywhere!
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Date: Sun, 30 May 1999 14:58:59 GMT
From: [EMAIL PROTECTED] (Kevin Jaget)
Subject: Mersenne: Odd observation Part II
On Sat, 29 May 1999 12:55:26 -0600, "Blosser, Jeremy"
<[EMAIL PROTECTED]> wrote:
>Hrm... I just looked at the rate my Quad Xeons are doing (2-Compaq 6500s and
>a 7000), and they are getting .31sec/iteration. Yet my peiced together
>Dual-412 (OC'd 300s) gets in the .21-.22 range... (same size FFT) Any
>thoughts as to why the Xeons are doing so poorly? Their affinity is for
>seperate processors (so they aren't jumping around). And I don't think that
>cache differences are a problem (cuz they got 512k and 1024k respectively).
>
>Any thoughts?
I sort of remember something being said about Prime95's timing being
incorrect for Xenon CPUs. It was either that the speed
auto-detection was wrong (check that Options->CPU matches what you
think it should be, or that the number of clock ticks wasn't counted
correctly. If both of these seem OK, try timing a few hundred
iterations by hand and see what you get.
>
>The only thing that came to mind was ECC cache or something?
- --
Kevin Jaget (or an FDA approved generic equivalent)
kcjaget at mindspring.com
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Date: Mon, 31 May 1999 08:59:22 -0700
From: "Aaron Schaufenbuel" <[EMAIL PROTECTED]>
Subject: Mersenne: Account Reports
Brian, thanks for replying... I didn't think my messages were getting through to the
base.com server.
>I don't think it's right either. But, seriously, if you're taking first LL
>tests with a 6 month run time, perhaps you should be taking
>double checks instead. The run time is (very approximately)
>proportional to the square of the exponent; double check
>exponents are typically around 3.2 million at the moment, whereas
>first tests are typically around 7 million. Though in either case you
>can be lucky & receive a smaller exponent which someone else
>has "thrown back", or which has expired.
Actualy, it is double checking on my 586-133. I have my K6 running first time
LL's, but it dosen't take nearly as long and I'm planning on geting a much faster CPU
soon anyways.
>If you can get the system connected to the net at all - even just
>once, for 1 minute, in about 3 months time, you should be able to
>"reset the expiry time" by checking in ("send new completion
>dates" from the Test menu). This will solve the problem. Otherwise,
>PrimeNet will assume that you've given up & reassign the exponent
>after 120 days.
I had a older LL test runing on this computer and the same thing happent, I did
have it send new completion dates, but the experation date didn't change. Eventualy I
released the exponet and got a new one and had the same problem. I'm probably just not
reading something something right. Can someone else check their account report to see
if the same thing is happening or if its just me?
Also, its probably not a big deal, but I was checking everything else on my
account report. Awhile ago I changed my e-mail address. I put my new one into
Prime95's user information but my report still shows my old one. I changed it about 4
months ago, I'm sure prime95 sent in my new e-mail address and its not a cached copy.
Am I just going crazy, or is something wrong?
- ---Aaron Schauf---
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End of Mersenne Digest V1 #565
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