View Full Version : What do YOU use to crunch WUs?

18th June 2000, 13:41
I was just wondering what system(s) all you other SETIers are using (esp all you guys at the top). I think Maggi has mentioned his systems before but I've never seen Martin's, Hecubus, Breezer etc.

I've got my own P2-350 running 24/7 but I use it during the day mostly and I'm storing a friends P3-500 for the summer. So, I've got it at 560Mhz and 24/7 http://forums.murc.ws/ubb/smile.gif!

And, another point - does anybody know what the fastest system is? Some HPs? SGI?


-- Edit: Doh! I did it without thinking! Maggi: despite my nickname causing confusion I am not female

[This message has been edited by Pace (edited 20 June 2000).]

18th June 2000, 13:51
I think Maggi has mentioned her systems

Pssssssssssssssst: Maggi is a he !! http://forums.murc.ws/ubb/smile.gif


18th June 2000, 13:52
Maggers is going to love this post! http://forums.murc.ws/ubb/wink.gif

PS my sig is out ouf date, I'm @ 975 now http://forums.murc.ws/ubb/biggrin.gif

ABit BF6, P3-650@923, 256mb@142cas3, 10gb IBM@7200, SB Live Value@3.0, Pioneer 104s DVD, Mitsumi CDRW@2x2x8, Acatel 1000 ADSL@1.5mb/sec, Linksys EtherFast NIC, LG 995e, USB mouse,Matrox G400 MAX!!!! :D

18th June 2000, 17:00
Guess he's going to have to change his sig again.. :P

18th June 2000, 22:09
I'm crunching with 4 Compaq Deskpro EP (3 Cel400, 1 Cel466) in 24/7. At home I've an P3 500@560, but it's seems to be a bit slow (about 8-9 hours for one workunit :-()

18th June 2000, 23:13

Alpha's seem to be the fastest processors; check this page (http://setiathome.ssl.berkeley.edu/stats/cpus.html). Some funnies in there as well. I wonder who reported a "PowderPC"... Wouldn't be Maggi, would it? Naah, she wouldn't do that.

Anyway, my systems:

- 1 * PIII 450@504
- 1 * PIII 450@450
- 3 * 4-processor Xeon 550@550 (1 MB cache)
- 1 * Celeron 400@450

That last one is my home-machine, which isn't on too often. The other 5 machines (14 processors) run 24*7, but only do seti when there's nothing else to do. All machines run Linux.


18th June 2000, 23:48
here's mine:
P3-600@858, 256MB RAM
P3-500@500, 128MB RAM
Both crunch 24/7.


19th June 2000, 00:27
Well, for now I use an assortment of PentiumIII and Athlon systems, but if I should ever hit those numbers on the lottery, just for fun, I might get one of these to crunch SETI units on..

Compaq AlphaStation ES40 (http://www.compaq.com/alphaserver/workstations/es40/index.html)

Kind Regards,


19th June 2000, 05:27
My Work main machine
Dell p2-400

My Development machine
Carerra Athlon 650

My Home machine
MyOwnBrand k62-450

I have access to,
9*Dell p3-450
I can crunch units on these in the evenings & we only.

During breaks I can crunch 40*p2/p3s 7*24.

Soon I will be replacing all our pentiums & pIIs with new p3/athlon machines. I will be able to crunch units during the burn in time b4 they are distributed.
Our 24*7 net access has been more like 6*2 lately so my unit count has been very lame. I don't use any caching at work as I like to leave the machines with no trace of seti on the hard drives.


19th June 2000, 05:59
Breezer: does that mean that you discard partly-finished WUs when you stop seti on the machines?

Paul: I know, but I couldn't resist the opportunity to get his panties in an even bigger knot... Err, well, maybe not panties then, eh? http://forums.murc.ws/ubb/wink.gif


19th June 2000, 06:34
-1 PIII 700 win98
-1 Dual PIII 650 NT
-2 Dual Xeon 500@514 (for the fun of it) NT/2000
-1 Imac
this are the 24/7 machines that I have direct control over from my desk, then there is 3-4 more machines that I use occasionally, more or les when I have time to check if they are running.


19th June 2000, 07:27
You can see my home machine in my sig. At work I've got a PII 350 w/64mb RAM that is slow as mud. Well, actually, not that slow, it's pulling in 9-10hr units. My other work machine is a PII 333 w/128mb RAM that averages 11-12 hrs. My home machine is averaging 7-8hr units. It would be faster but that stupid epox board doesn't allow for 1mhz increments of OC'ing and the G200 isn't stable at 110FSB/73mhz AGP bus. So, I'm SOL on that front for the moment.


Epox 7KXA BIOS 4/25, Athlon 650, 256 MB PC133 SDRAM, Matrox Mill G200 AGP PD 5.41/5.30 hybrid, SBLive Value LiveWare 3.0,
3Com 3c905B-TX NIC, 33.6 USR ISA mdm, 13.6 GB 7200RPM UDMA33 IBM HD, 15gb 7200 RPM Maxtor, 45X Acer CD-ROM, Win98 SE, Win 2000, RedHat 6.2, MS Intellimouse Optical, 17" Mag 720v^2
Next on upgrade list, Globalwin VOSS32 Heat Sink

"Any sufficiently advanced technology will be indistinguishable from magic." --Arthur C. Clarke

[This message has been edited by HedsSpaz (edited 19 June 2000).]

19th June 2000, 07:44
Man, thats a nice day here in Germany. We have now clouds in heaven and nearly 30C here!
But now to the Topic.

Place 7 uses:
1x Athlon 650@750 with 1/2 L2 Cache 128MB Ram(my own rig)
1x PII-400 128MB Ram
1x Celeron 300A@450 with 64MB Ram
1x Celeron 333@375 with 64MB Ram (machine at work)
1xCeleron 300a
1xK6-2 350@400 with 128MB Ram (my machine at work)
1xPII 233@266 with 64MB Ram(machine at work, i build it to "learn" WinNT 4.0, thats the explanation for the guys above me, it is only alive to crunch SETI of course!).

That was it I think. The 450 Celeron , the 300a and the PII 400 crunch 24/7d a week and deliver the WU's every day. All over PC's also crunch 24/7d a week but have a cache of 20 WU's before they send them in.


19th June 2000, 10:07
Its 32C here in sunny england & stuck in the office.

I have a batch file that copies the files from my network directory to the local machines and back again when they shut down.

Doing this stops seti from showing up in software audits and having the hard disks wiped.

I take home 80%+ units to finish off as I still don't have free web access thanks to NTL not being able to provide a cable modem or an authorisation disk.


19th June 2000, 10:11
2 Data General Aviion 8900 8*550 MHz Xeon processors w/1MB of cache for each processor; 1GB RAM

2 Data General Aviion 1400 2*700 MHz PIII processors; 1GB RAM

3 Data General Aviion 2800 2*500 MHz Xeon processors w/1MB cache; 1GB RAM

Wish they were mine, but all company owned http://forums.murc.ws/ubb/frown.gif
You should've seen my stats climb in the chart. Gonna be in the top 100 in no time! http://forums.murc.ws/ubb/smile.gif

I heard Seti is almost out of WUs. ANy truth to this? And, if it is true, are they gonna give us another project?

19th June 2000, 15:24
Home: PIII550@616 (6:00 to 6:20 per WU)(cmdline 2.4)
Home: K6II300 (18:00 to 19:00 per WU) (cmdline 2.4)
Work: PII300 (11:40 to 12:40 per WU) (cmdline 2.4)
Assorted SPARC Unix boxes (2's, 5's, 20's) (all take for bloody ever per WU ie. 30:00 to 48:00 hours!! http://forums.murc.ws/ubb/frown.gif )(Solaris 2.5)

19th June 2000, 15:57
My systems:
Main: dual-p3-600MHz+128MB+G200+voodoo1 http://forums.murc.ws/ubb/smile.gif
"game"-machine: dual-p2-333MHz+128MB+ isa-video card http://forums.murc.ws/ubb/smile.gif http://forums.murc.ws/ubb/smile.gif + drx2.
Both machines running win2k+i386-winnt-2.4-cmd.

I've bought a g400 for the game-machine, but it didn't work with the old monitor...

BTW, that's up with the time? Local time is now 01:00, and my time-zone is WestEurope Daylight Time...

[This message has been edited by Rattledagger (edited 20 June 2000).]

[This message has been edited by Rattledagger (edited 20 June 2000).]

19th June 2000, 16:31
<font size=9>MARTIN!</font>

Wouldn't be Maggi, would it? Naah, she wouldn't do that.

Do you not know that, despite his nickname causing confusion, Maggi is a he http://forums.murc.ws/ubb/wink.gif.

And thanks for the link guys!


-- Edit: Doh! The quote thing is UBB - NOT html! Hehe.

[This message has been edited by Pace (edited 19 June 2000).]

19th June 2000, 17:30
Breezer Why not just crunch the units while still in your network directory can you not give each machine access to the cache you store there? I do that on my network with 1 batch file to crunch them all and each machine just runs the batch file from across the network. Im not sure but this may require you to map the network drive (which wont really be an option I dont think? Unless the share is already mapped?).

Thanks for all the extra info guys.

And with all the top system people being here what is all this about the L2 cache what is more important size or speed? And what needs to fit into the cache (i.e. what size is required) my WU and seti.exe are about 530Kb I think which just takes them out of the reach of my caches.


19th June 2000, 23:16
GnrlData: yes, I spotted your race up the charts. Did you try the sort by "total Delta WUs"? You're in the top-10 there. Radioman is quite impressive too. Nice!

Paul: about the cache sizes. Check out the Seti Spy (http://pages.tca.net/roelof/setispy/) page. It has a very nice section on processing efficiency.

Excluding the generation of the screensaver graphics, the most time-consuming part of SETI@home is the FFT routine, which accesses data sets of up to 1 MB in size. Performance is much improved if all the data sets fit entirely in the L2 cache of the processor, as will be the case for all processors with at least 1 MB L2 or L3 cache.

I don't know what the trade-off between size and speed would be exactly. Anyone have any info/thoughts on that?


20th June 2000, 07:14

IBM has a new computer out, I think it may be the fastest.

My system (just one computer) :

PIII 600E overclocked to 800MHz. I can crunch about 3.3 WU per day if I don't do any heavy "work" such as playing games http://forums.murc.ws/ubb/smile.gif

By the way, Maggi is from Western Europe, I can not remember which country, I have a bad memory (Sorry Maggi).

The other day I looked at some stats and a guy has a computer that is crunching a WU every 24 seconds. I have no idea what machine it is and I don't remember his name. May be someone here knows who I am talking about. We need this guy on the MURC team.

Also, have any of you had problems opening .png pictures at http://seti.matroxusers.com/murc/images/ today? I have had no problems in the past and the charts are a great idea.


20th June 2000, 08:17
Maggi's from germany, like me.
If someone crunches a WU in 24 sec's than he's cheating mostly.


20th June 2000, 09:56
At work- A PIII 500 W192 MB running NT 8-9hrs. It's still work and I run alot of memory hogging apps at once. At home PIII450@558 w/128 running 98- I get around 6.5-8 depending on what Im doing. I also have a Celeron 433 w128, W98 that does WU's in about 13-15 hrs.
Tha fastest WU I had was at home. 5 mins 24 sec. Just a fluke.

20th June 2000, 16:55
I used to run from a network drive but changed to run locally for 2 reasons.

The first was if there is a blip on the network, connection was lost and the w/u stoped processing.
Secondly I found that on the network the units took a lot 25% longer to process. This was using 1.x Command line version. I haven't tried with 2.4 which hits the disk less.


20th June 2000, 23:22
Swing: some of the pictures weren't available, because I wasn't able to upload them (the disk was full).

Should be okay again now.


Sir Hitech
20th June 2000, 23:26
RadioMan here!

GnrlData's Xeon racers finally blew by me and left my fleet of Athlon's in the dust.... My boys did manage to hang on for a few miles, it was fun... http://forums.murc.ws/ubb/smile.gif

Athlon 750@1000 1/3 cache 256mb
Athlon 750@923 2/5 cache 192mb
Athlon 700
Athlon 650

and the slackers:
Pentium 133, 48hr/wu..LOL

Might have hung on a bit longer if they ran 24/7...

Greebe: got any Athlons I can borrow? http://forums.murc.ws/ubb/smile.gif

21st June 2000, 00:12
seems like I missed a party ... http://forums.murc.ws/ubb/wink.gif

Anyway, as said before, I'm male and this (http://www.maggi.de) is not my homepage, although I live in the same country. (Northern Germany that is and working in Hamburg)


About my fastest WU ... CPU Time = 360 seconds ... http://forums.murc.ws/ubb/biggrin.gif
I still have the copy at home, but wouldn't dare to submit it again (just in case someone might get suspicious)

and I indeed sometimes occupy a lot of machines for crunching WUs ... do a search and you'll find the list ... http://forums.murc.ws/ubb/wink.gif


PS: I'm glad nobody brought up the spice girls yet ... Cheesecake, baby ! http://forums.murc.ws/ubb/icons/icon2.gif

21st June 2000, 00:12
My seti machines are largely non-dedicated. I have about 10 of those, mostly P3's between 350-450 Mhz. Typically they process units only when they are sitting idle, i.e. nobody is logged on. I get about half of my units per day from them.

My (current) dedicated systems are:
1 Dual P3 Xeon 500/1MB cache
1 P3 667
1 P3 500
1 P3 450 (my work machine)
1 P3 450@527 (my home machine, shut-down only for quake or unreal)


Brian R.
21st June 2000, 10:40
I have all my computers running 24/7 unless gaming.

800E at 992 (BE6)
PIII 600 at 672 (BE6-2)
PII 450 (Dell)
PII 333 (Compaq) work

[This message has been edited by Brian R. (edited 23 June 2000).]

21st June 2000, 11:14
no wonder ill never catch up with u ppl, i only use one system and it aint all that fast either http://forums.murc.ws/ubb/frown.gif
i only crunch in win2k, btw


Here is my crappy system config:
K6-3 450, 256MB SDRAM,Tyan Trinity ATX (S1598 2mb cache on board), &lt;b&gt;Matrox G400 Max &lt;/b&gt;
Windows 98SE/Mandrake Linux 7.0/win2k/beos 5.0 (free version)
SB 128 PCI
AOpen Lan aln-325c

21st June 2000, 12:17
I've got none at work http://forums.murc.ws/ubb/frown.gif ,won't let me.

Cel 366 @ 550 (mine)RAM CAS2 8hrs 24/7 at the mo
PII 333 12.5hrs (friends) 24/7 (i might of lost this 1 http://forums.murc.ws/ubb/frown.gif)

ALL the rest work SETI occasionally (all belong to friends)
PII 350
PII 266 laptop
PII 266
PIII 550
K6-2 500
K6-2 374

what's that you say?...... Oh yeah ,wrong team http://forums.murc.ws/ubb/wink.gif hehe

I guess I won't recruit for my team here ;) TA

Brian R.
21st June 2000, 18:29
Assimilator - I have read where there is definite evidence that the 366 Celery chips run much faster in SETI if underclocked to 50 MHz fsb. It doesn't take effect for at least 6 weeks. Also, it is required that you run the processor no more than 4 hours a day. Once these requirements are obtained, it will process WUs in around 3 hours.

21st June 2000, 19:30
I run 24/7 on all computer except for a the occasional gane session.

K6-3/450, 128mb(256 soon)
K6-2/450 @504 128mb (girlfriends)
K6-2/450 64mb(print server for home network)
P233MMX 48mb(work, replaced P75, I needed it

21st June 2000, 23:32
PIII 600E @ 800 MHz, 256 MB RAM, Asus P3V4X
PIII 700 @931, 128 MB RAM, AOpen AX6BC Millenium Pro II
PIII 550E @ 733 MHz, 256 MB RAM, Asus CUBX
PIII 600 (Katmai) at spec, 384 MB RAM, Asus P2B-F
Dual PII 500's (Katmai), 384 MB RAM, Asus P2B-D

Configurations are subject to change without notice. http://forums.murc.ws/ubb/smile.gif

By the way, I'd like to publicly apologize to my Asus P3V4X. Ever since I complained about it lagging a little behind my Intel systems, it's been a SETI WU crunching monster. For some odd reason, it has been noticably and consistantly faster than my other systems, including the 931 MHz rig.


[This message has been edited by paulcs (edited 22 June 2000).]

22nd June 2000, 11:25
Brian R

LOL ,you think I was born yesterday http://forums.murc.ws/ubb/wink.gif hehe

Oh yeah ,that PIII 550 (maybe 500)is running 24/7 for me http://forums.murc.ws/ubb/biggrin.gif.

And I have lost the PII 333 ,possibly permanently http://forums.murc.ws/ubb/frown.gif

22nd June 2000, 16:45

Thanks for letting me know what happened concerning pictures not being in the computer, and the fix. You are right, they are there now.


Brian R.
23rd June 2000, 07:53
I couldn't resist helping http://forums.murc.ws/ubb/wink.gif. Anyway, I just aquired an 800E - runs at 992 (except in UT). Finally broke the 5-hour barrier for average WUs (at least with this computer).


23rd June 2000, 10:43
Wow! ,very nice!
Is that with RAM at CAS/RAS 2?

Brian R.
23rd June 2000, 21:54
Ideally yes, but I'm trying it at CAS 3 to see if it will stabilize the system (it's the tested 222 Mushkin RAM). Also trying 1.75 V with the CAS 3. The CAS 3 along with going generally much more conservative in the BIOS did not help. So far, so good at 1.75 and CAS 3. I'm afraid to try UT until tomorrow.

(God is this fast)

[This message has been edited by Brian R. (edited 24 June 2000).]

30th June 2000, 12:43
Main computers:
P3 450@558 256mb (need some new ram)
P3 500@530 128mb
PII 266 64mb

Join the MURC SETI team @ <A HREF="http://setiathome.ssl.berkeley.edu/cgi-bin/cgi?cmd=team_join_form&id=25678

" TARGET=_blank>http://setiathome.ssl.berkeley.edu/cgi-bin/cgi?cmd=team_join_form&id=25678


30th June 2000, 13:00
My machinepark as follows:

Athlon 800@1050 256MB
Athlon 700@825 256MB
K6-3 450 128MB
K6-2 450 128MB
K6-2 450 64MB
K6 300 128MB
P5 200 64MB

1st July 2000, 09:40
What kind of WU times do you's all get? (exc. those that have put it in)

Also, does anybody have a benchmark page or know of one which shows off different OSes, CPUs, FSBs?


1st July 2000, 12:50
Of course Pace, no problem.

1x Athlon 650@750 with 1/2 L2 Cache 128MB= 6hrs 20 min
PII-400 128MB Ram= 9hrs
1x Celeron 300A@450 with 64MB Ram= dunno really but think it was 10hrs
1x Celeron 333@375 with 64MB Ram=13hrs
1xCeleron 300a=23hrs(eek! It runs as a NT server, has to do a lot i think{not under my Admin})
1xK6-2 350@400 with 128MB Ram=14hrs, the use of CLI brought a 2hrs40min speed increase!
1xPII 233@266 with 64MB Ram=12 hrs, good for that slow system


1st July 2000, 13:45

Pitty you cant put that PII 233 on a BX board.
I have a PII 233 @ 280MHz (2.5x112)with RAM at CAS2 ,so far it's doing WU's in about 10.5hrs!!! ,very fast for its low clock rate http://forums.murc.ws/ubb/biggrin.gif

I guess I won't recruit for my team here ;) TA

1st July 2000, 16:05
As for benchmark-unit and different speed-tips, look at http://www.teamlambchop.com/
The benchmark-unit hasn't got gaussian, and are around 30m shorter if normal is 8h.

As for the speed:
Dual-p3-600: 7h42m/unit
Dual-p2-333: Around 12h40m.

2nd July 2000, 00:21
P3-600E@858, 256MB RAM CAS2,

<a href="http://setiathome.ssl.berkeley.edu/cgi-bin/cgi?email=jm@sola.to&cmd=detailed_user_stats&nresults=10">Here's my 10 latest</a>

Have tried several OS'es with the same setup:
Win2000: ~5h
Win98SE: ~4:30h
BEOS R5.0: ~5h
Win Me: ~4:45


[This message has been edited by jms (edited 02 July 2000).]