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SETI, 2 processes at once

S

sswingle

Diamond Member
I know that on a P4 HT, that running 2 processes will produce two work units in the same amount of time. But, has anyone done testing to determine what a Athlon XP will do with two?
I don't have any way to know for sure, since I have several machines running, but I just set processes to 2 on my Athlon 2600, and today I am looking at my best daily production ever. I suppose I could turn off transmitting for a while and see how quickly they add up...

Anyone have any ideas?
 
Hey pwddesign!

I've never tried it before, but I've also got a Athlon 2600, and I've set the processes to 2, so I'll check my SetiQueue...hope it works!!! 😀😀😀
 
You point that machine you're trying to benchmark at a SetiQ and check its statistics under the Clients tab. It will give you the rate per day, rate yesterday, rate today, average CPU time, last result (great for checking on clients), and how many WU's it's got pending. I monitor all of my machines through the use of SetiQ. It has 2 benefits - WU queueing and client monitoring. 🙂 You could use one of the public queues or if you want you could point it at mine for a while. My queue is HERE.
 
I checked this out at home and on my Athlon it just runs 2 clients and each one takes 50% of the cpu. So you will not gain anything, but you will use another 16 megs of ram since it is now running it twice.
 
I realize it takes 50% of the cpu for each process, but maybe it is more efficient or something. We'll know in a day or so when I see how many WU I get. My estimated time per WU is around 3 hours, so we'll see if I can get more than 8 a day.
 
Running 2 processes on a Athlon XP machine won't really increase your production, if anything, it may lower it slightly (using the same bits of the CPU, shared memory bandwidth etc)

It only really helps on a HT'd P4 system, or on dualies to run more than 1 process


Garry
 
Yes, this is well trodden pathway time.
What Confused said is true, multiple processes on multiple cpu's helps a lot - on a single cpu not.
(P4 HT has two "cpu's" in each for this discussion)
Running 4 processes on a dual HT machine would be cool 😉
 
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