mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > Hardware

Reply
 
Thread Tools
Old 2003-07-10, 14:22   #12
nomadicus
 
nomadicus's Avatar
 
Jan 2003
North Carolina

2×3×41 Posts
Default

Quote:
Originally Posted by nomadicus
IBM ThinkPad
Intel 486 processor
CPU speed: 100.00 MHz
L1 cache size: unknown
L2 cache size: unknown
L1 cache line size: unknown
L2 cache line size: unknown
Prime95 version 23.4, RdtscTiming=1
Best time for 384K FFT length: 511272.479 ms.
.
.
.
Best time for 2048K FFT length: 3004013.919 ms.
Doing a sanity check on my numbers, the 384K FFT of 511,272 seconds is almost 6 days, the 2048K FFT is over 34 days That ain't right. The bench ran in 3-4 days. I swear it did. Or did I put a tear in the space-time continuum?
nomadicus is offline   Reply With Quote
Old 2003-07-10, 14:26   #13
eepiccolo
 
eepiccolo's Avatar
 
Dec 2002
Frederick County, MD

2×5×37 Posts
Default

Quote:
Originally Posted by nomadicus
Or did I put a tear in the space-time continuum?
STC tears definitely should not count for this comparison ;)
eepiccolo is offline   Reply With Quote
Old 2003-07-10, 15:21   #14
dswanson
 
dswanson's Avatar
 
Aug 2002

23·52 Posts
Default

Quote:
Originally Posted by trif
I had to talk my husband into buying it instead of spending the money on an engagement ring.
This sounds like something that belongs in the You just might be addicted to GIMPS if... thread!
dswanson is offline   Reply With Quote
Old 2003-07-10, 15:25   #15
trif
 
trif's Avatar
 
Aug 2002

2×101 Posts
Default

Quote:
Originally Posted by dswanson
Quote:
Originally Posted by trif
I had to talk my husband into buying it instead of spending the money on an engagement ring.
This sounds like something that belongs in the You just might be addicted to GIMPS if... thread!
But I wasn't doing GIMPS back then, and public distributed computing hadn't even been born yet. Must have been that space-time continuum thing.

Aieee! The fabric of time is swiss cheesed!
trif is offline   Reply With Quote
Old 2003-07-10, 15:40   #16
dswanson
 
dswanson's Avatar
 
Aug 2002

23·52 Posts
Default

Quote:
Originally Posted by nomadicus
Doing a sanity check on my numbers, the 384K FFT of 511,272 seconds is almost 6 days, the 2048K FFT is over 34 days That ain't right. The bench ran in 3-4 days. I swear it did. Or did I put a tear in the space-time continuum?
Units problem. The benchmark numbers are in milliseconds, not seconds. So your 384K FFT was 511.272 seconds/iteration (about 8.5 minutes), your 2048K FFT is 3004.013 seconds/iteration (about 50 minutes).

BTW, stay away from spacecraft to Mars :D
dswanson is offline   Reply With Quote
Old 2003-07-10, 15:59   #17
dswanson
 
dswanson's Avatar
 
Aug 2002

23·52 Posts
Default

Quote:
Originally Posted by trif
But I wasn't doing GIMPS back then, and public distributed computing hadn't even been born yet. Must have been that space-time continuum thing.
Hmmm. Very early signs of addiction. Sounds like a severe case. But you can be helped. First step is to admit the problem. Just say "My name is trif, and I'm a GIMPS addict."

Don't ask me what the second step is. I never get past that point without having to satisfy a sudden urge to run out and buy another node for my monster.
dswanson is offline   Reply With Quote
Old 2003-07-10, 18:38   #18
nomadicus
 
nomadicus's Avatar
 
Jan 2003
North Carolina

2×3×41 Posts
Default

Quote:
Originally Posted by dswanson
Quote:
Originally Posted by nomadicus
Doing a sanity check on my numbers, the 384K FFT of 511,272 seconds is almost 6 days, the 2048K FFT is over 34 days That ain't right. The bench ran in 3-4 days. I swear it did. Or did I put a tear in the space-time continuum?
Units problem. The benchmark numbers are in milliseconds, not seconds. So your 384K FFT was 511.272 seconds/iteration (about 8.5 minutes), your 2048K FFT is 3004.013 seconds/iteration (about 50 minutes).
That looks much better (I need to clean my glasses once in a while). I saw the decimal and thought the digits to the right were ms. Nooo. They are usec. Ug! ops:
nomadicus is offline   Reply With Quote
Old 2003-07-11, 00:25   #19
trif
 
trif's Avatar
 
Aug 2002

2·101 Posts
Default

My name is Trif and I'm a GIMPS addict.

Dang, I have a sudden urge to put that 486 back in service, just for a TF result every six months or so.
trif is offline   Reply With Quote
Old 2003-07-11, 00:43   #20
Xyzzy
 
Xyzzy's Avatar
 
Aug 2002

865810 Posts
Default

First you go into a stage of denial and then a stage of anger... Acceptance that you have a problem is the final stage...

Denial ain't just a river in Egypt you know...
Xyzzy is offline   Reply With Quote
Old 2003-07-11, 04:23   #21
nomadicus
 
nomadicus's Avatar
 
Jan 2003
North Carolina

2×3×41 Posts
Default

Quote:
Originally Posted by trif
My name is Trif and I'm a GIMPS addict.

Dang, I have a sudden urge to put that 486 back in service, just for a TF result every six months or so.
well, since others are coming out of the closet, I'll admit, after seeing that lowly laptop crank a benchmark for a for a few days, I now have plans to let it do TF work.
So, gulp, here goes . . . I'm john and I'm a GIMPS addict.
There! I feel better already
nomadicus is offline   Reply With Quote
Old 2003-07-11, 05:04   #22
sdbardwick
 
sdbardwick's Avatar
 
Aug 2002
North San Diego Coun

11001101012 Posts
Default

Quote:
Originally Posted by trif
I can't find the old 30 pin memory it used. :(
I probably have some old 30 pin SIMMs around here someplace, and I'd be happy to donate them to the cause, but they are only 1MB. I don't know if that will allow enough memory to do any real testing.

On another note, why is your nickname blue in the TPR factoring reports? Just curious...

I'm attempting to revive an old 486 Toshiba laptop to get some results, but I'm being hampered by its lack of (1) network card, (2) CD-Rom, and (3) my only floppy installation based OS is NT 3.51 (Prime95 23.5 wants a DLL I can't find). I'll keep at it though...
sdbardwick is offline   Reply With Quote
Reply



Similar Threads
Thread Thread Starter Forum Replies Last Post
Lowest Unknown Prime GuyMacon PrimeNet 6 2011-05-07 03:20
Benchmarks MurrayInfoSys Information & Answers 3 2011-04-14 17:10
LLR benchmarks Oddball No Prime Left Behind 11 2010-08-06 21:39
lowest 10M exponents available - pick your choice tha Lone Mersenne Hunters 116 2008-11-23 13:03
What is the Lowest Rank you can have crash893 Data 7 2006-01-26 05:26

All times are UTC. The time now is 16:12.


Fri Jul 7 16:12:43 UTC 2023 up 323 days, 13:41, 0 users, load averages: 1.94, 1.54, 1.30

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.

≠ ± ∓ ÷ × · − √ ‰ ⊗ ⊕ ⊖ ⊘ ⊙ ≤ ≥ ≦ ≧ ≨ ≩ ≺ ≻ ≼ ≽ ⊏ ⊐ ⊑ ⊒ ² ³ °
∠ ∟ ° ≅ ~ ‖ ⟂ ⫛
≡ ≜ ≈ ∝ ∞ ≪ ≫ ⌊⌋ ⌈⌉ ∘ ∏ ∐ ∑ ∧ ∨ ∩ ∪ ⨀ ⊕ ⊗ 𝖕 𝖖 𝖗 ⊲ ⊳
∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟
¬ ∨ ∧ ⊕ → ← ⇒ ⇐ ⇔ ∀ ∃ ∄ ∴ ∵ ⊤ ⊥ ⊢ ⊨ ⫤ ⊣ … ⋯ ⋮ ⋰ ⋱
∫ ∬ ∭ ∮ ∯ ∰ ∇ ∆ δ ∂ ℱ ℒ ℓ
𝛢𝛼 𝛣𝛽 𝛤𝛾 𝛥𝛿 𝛦𝜀𝜖 𝛧𝜁 𝛨𝜂 𝛩𝜃𝜗 𝛪𝜄 𝛫𝜅 𝛬𝜆 𝛭𝜇 𝛮𝜈 𝛯𝜉 𝛰𝜊 𝛱𝜋 𝛲𝜌 𝛴𝜎𝜍 𝛵𝜏 𝛶𝜐 𝛷𝜙𝜑 𝛸𝜒 𝛹𝜓 𝛺𝜔