Thread: RPS benchmarks
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Old 2014-05-04, 20:59   #14
Batalov
 
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Mar 2008
Phi(4,2^7658614+1)/2

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Code:
Starting Lucas Lehmer Riesel prime test of 179*2^1636808-1
Using AMD K8 FFT length 112K, Pass1=448, Pass2=256
179*2^1636808-1, iteration : 10000 / 1636808 [0.61%].  Time per iteration : 3.301 ms.
@vendor_id       : AuthenticAMD
cpu family      : 15
model           : 65
model name      : Dual-Core AMD Opteron(tm) Processor 8220 SE
stepping        : 2
cpu MHz         : 2800.305
cache size      : 1024 KB

Starting Lucas Lehmer Riesel prime test of 179*2^1636808-1
Using Pentium4 FFT length 112K, Pass1=448, Pass2=256
179*2^1636808-1, iteration : 10000 / 1636808 [0.61%].  Time per iteration : 1.298 ms.
@vendor_id       : GenuineIntel
cpu family      : 6
model           : 26
model name      : Intel(R) Xeon(R) CPU           X5570  @ 2.93GHz
stepping        : 5
cpu MHz         : 2926.102
cache size      : 8192 KB
Opteron 8220 is a very old series though (~2007).
X5570 is not new either (~2009).

P.S. We are talking about multi-CPU servers here.
Quote:
Originally Posted by pinhodecarlos View Post
I was in doubt because it is much cheaper to buy an AMD server with 4 processors than one from Intel. Thank you.
Servers are conservatively clocked and quite expensive.
Tom's got some special deal at some point. Ask him.

Last fiddled with by Batalov on 2014-05-04 at 22:57
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