mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > Sierpinski/Riesel Base 5

Reply
 
Thread Tools
Old 2006-10-11, 19:58   #1
axn
 
axn's Avatar
 
Jun 2003

2×2,693 Posts
Lightbulb Attention PRP Testers (with SSE2 non-P4 machines)

If you are running LLRNet or manual PRP using a non-P4 SSE2 machine (Athlon64, Opteron, Petium M, Core *), could you try adding the following line to your llr.ini:
Code:
CPUSupportsSSE2=0
You need to restart LLRNet/LLR/PRP after making the change. Please let me know if you see any improvement in the iteration times.

* I don't know about Core 2. If anyone has Core 2 and willing to do the test, please let me know how that works out.
axn is offline   Reply With Quote
Old 2006-10-11, 20:18   #2
em99010pepe
 
em99010pepe's Avatar
 
Sep 2004

2·5·283 Posts
Default

For me it's worst on an AMD64 3000+. From 3.3 ms/it to 3.9 ms/it.

Carlos

Last fiddled with by em99010pepe on 2006-10-11 at 20:18
em99010pepe is offline   Reply With Quote
Old 2006-10-11, 20:49   #3
michaf
 
michaf's Avatar
 
Jan 2005

479 Posts
Default

For Athlon-64 X2 3800+: from 3.4 to 4.3 mseconds per iteration
michaf is offline   Reply With Quote
Old 2006-10-11, 21:44   #4
Kosmaj
 
Kosmaj's Avatar
 
Nov 2003

2×1,811 Posts
Default

This way your are disabling SSE2 code. Why do you expect to gain any speed
Kosmaj is offline   Reply With Quote
Old 2006-10-11, 22:25   #5
Xentar
 
Xentar's Avatar
 
Sep 2006
Germany

2×5×19 Posts
Default

Core 2 E6600
Iteration time before: 1.5 ms
Iteration time after: 2.9ms

not really good ;)
as Kosmaj asked: Why would you expect an improvement, when you disable some optimizations?

Last fiddled with by Xentar on 2006-10-11 at 22:29
Xentar is offline   Reply With Quote
Old 2006-10-12, 05:08   #6
arminius
 
arminius's Avatar
 
Sep 2006
Germany

1668 Posts
Default

AMD 64 3700+
before: 3,092 ms
after: 3,567 ms

a.
arminius is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pay attention please. a1call Puzzles 28 2018-05-25 00:03
MemtestG80 and MemtestCL: Memory Testers for GPUs Jeff Gilchrist Hardware 0 2010-08-19 16:32
Attention vaughan mdettweiler No Prime Left Behind 2 2009-12-26 04:23
Rising attention in this project hhh Prime Cullen Prime 0 2007-05-04 19:19
Searching for some beta testers after the easter weekend ltd Prime Sierpinski Project 31 2006-04-19 21:30

All times are UTC. The time now is 04:09.


Tue Aug 9 04:10:00 UTC 2022 up 32 days, 22:57, 1 user, load averages: 1.86, 1.59, 1.28

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, 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