P4 Hyper-Threading Benchmark??

[HaloJones]

Can anyone running DF with a hyper-threading-enabled P4 post a benchmark?

[KWSN_Millennium2001Guy]

Originally posted by HaloJones
Can anyone running DF with a hyper-threading-enabled P4 post a benchmark?

Yes, I believe that there is nothing in the rules which would prevent them from posting.

I hope this answers your question.

[KWSN-DD849]

Originally posted by KWSN_Millennium2001Guy
Yes, I believe that there is nothing in the rules which would prevent them from posting.

I hope this answers your question.

M2K+1Guy. You are so silly No wonder no one takes us serious

Ni

[KWSN_robegeor]

Short version? It sucks.

I don't have the actual numbers anymore, but when setting up a Dell PE6600 with four physical processors, I did a weekend worth of DF crunching as part of the burn in.

Setup Info: Dell (Dude, your getting) PE6600. 4 Xeon 1.4 cpus, 4Gb RAM, bunch O' disks, Win2K Advanced Server, SQL Ent, etc.

The four virtual processors produced hardly any results (compared to the four "real" processors) and if I remember correctly the total output while running DF across all eight processors was worse than running just four instances. There may be a "happy medium" (say 6 instances of DF in this case) that produces well, but I wouldn't bet on it...

It kind of makes sense. Hyperthreading isn't going to be able to do much with a CPU slammer like DF. It's just not what hyperthreading was designed for. Though, on the upside, we are seeing a performance improvement in MS-SQL of around 30-35% with hyperthreading turned on...

[collin]

Here's an interesting article from Sudhian worth taking a look. Though DF wasn't run in those tests, there are some hard figures and analysis on F@H and Seti@H.

[HaloJones]

Originally posted by KWSN_Millennium2001Guy
Yes, I believe that there is nothing in the rules which would prevent them from posting.

I hope this answers your question.

Go back to your shrubbery you silly kniggit!

[pointwood]

What kind of benchmark do you want?

I have a dual 2Ghz Xeon (512Kb cache) server, sadly only temporarily

Right now I'm running just a single processor to see what kind of performance that gives.

I will try to run a quick benchmark with 4 clients running too.

I have already tried to start 4 clients and I experienced something strange - they all started normally, using ~100MB memory (using the -rt switch), but when I checked it a bit later (using Windows Terminal Server), they only used ~50-60MB each

[pointwood]

A single client:

------------------------------------------------------------
Distributed Folding Windows dfGUI v1.8 Benchmark

Sample Size : 1240 structures over 1133 seconds.
Protein Size: 129AA

Structures Per Second: 1.09
Structures Per Minute: 65.7
Structures Per Hour : 3940
Structures Per Day : 94560

OS : Windows 2000 MHz: 1995
CPU: Intel(R) XEON(TM) CPU 2.00GHz
Client Switches: -df -rt -s 1000
------------------------------------------------------------

I thought it would be faster

4 Clients running:

------------------------------------------------------------
Distributed Folding Windows dfGUI v1.8 Benchmark

Sample Size : 1720 structures over 2849 seconds.
Protein Size: 129AA

Structures Per Second: 0.60
Structures Per Minute: 36.2
Structures Per Hour : 2173
Structures Per Day : 52161

OS : Windows 2000 MHz: 1995
CPU: Intel(R) XEON(TM) CPU 2.00GHz
Client Switches: -df -rt -s 1000
------------------------------------------------------------

------------------------------------------------------------
Distributed Folding Windows dfGUI v1.8 Benchmark

Sample Size : 1700 structures over 2843 seconds.
Protein Size: 129AA

Structures Per Second: 0.60
Structures Per Minute: 36.0
Structures Per Hour : 2159
Structures Per Day : 51810

OS : Windows 2000 MHz: 1995
CPU: Intel(R) XEON(TM) CPU 2.00GHz
Client Switches: -df -rt -s 1000
------------------------------------------------------------

------------------------------------------------------------
Distributed Folding Windows dfGUI v1.8 Benchmark

Sample Size : 1570 structures over 2846 seconds.
Protein Size: 129AA

Structures Per Second: 0.55
Structures Per Minute: 33.1
Structures Per Hour : 1986
Structures Per Day : 47663

OS : Windows 2000 MHz: 1995
CPU: Intel(R) XEON(TM) CPU 2.00GHz
Client Switches: -df -rt -s 1000
------------------------------------------------------------

------------------------------------------------------------
Distributed Folding Windows dfGUI v1.8 Benchmark

Sample Size : 1735 structures over 2847 seconds.
Protein Size: 129AA

Structures Per Second: 0.61
Structures Per Minute: 36.6
Structures Per Hour : 2194
Structures Per Day : 52653

OS : Windows 2000 MHz: 1995
CPU: Intel(R) XEON(TM) CPU 2.00GHz
Client Switches: -df -rt -s 1000
------------------------------------------------------------

It seems that HT gives little performance boost, but it's not much (compared to the benchmark when running one client).

I'm running 2 clients right now to see what kind of performance that gives.

2 clients:

Wierd - they are slow...

------------------------------------------------------------
Distributed Folding Windows dfGUI v1.8 Benchmark

Sample Size : 1350 structures over 1750 seconds.
Protein Size: 129AA

Structures Per Second: 0.77
Structures Per Minute: 46.3
Structures Per Hour : 2780
Structures Per Day : 66728

OS : Windows 2000 MHz: 1995
CPU: Intel(R) XEON(TM) CPU 2.00GHz
Client Switches: -df -rt -s 1000
------------------------------------------------------------


------------------------------------------------------------
Distributed Folding Windows dfGUI v1.8 Benchmark

Sample Size : 1490 structures over 1756 seconds.
Protein Size: 129AA

Structures Per Second: 0.85
Structures Per Minute: 50.9
Structures Per Hour : 3055
Structures Per Day : 73312

OS : Windows 2000 MHz: 1995
CPU: Intel(R) XEON(TM) CPU 2.00GHz
Client Switches: -df -rt -s 1000
------------------------------------------------------------

[KWSN_Millennium2001Guy]

How much memory and of what type on this dual XEON box? It looks as though you have a severe memory bottleneck or not enough RAM.

Ni

[pointwood]

It's one of these: http://www.pc.ibm.com/support?page=8...e=&subtype=Cat

But with 1GB memory.