X2 runs only at 50%

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Profile Mike Special Project $75 donor
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Message 381699 - Posted: 29 Jul 2006, 20:28:21 UTC
Last modified: 29 Jul 2006, 20:28:44 UTC

I´m running a X2 4800+ Dual core.
I have set my preferences to 2 CPUs but it only shows 50% in task manager.
Also my times are slow i think.
About 4 houres with optimized SSE2 0.430 AR.

What is wrong.

regards Mike



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Message 381710 - Posted: 29 Jul 2006, 20:33:33 UTC
Last modified: 29 Jul 2006, 20:34:16 UTC

Your results say that you're using the SSE app, not the SSE2 one.

It will dramatically make your times faster if you install the SSE2 one on that machine instead ;) Still, it should use both CPUs if you have your BOINC preferences set up to do so.

HTH,
Simon.
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Message 381719 - Posted: 29 Jul 2006, 20:42:53 UTC

Have you updated your preferences on your local computer? I.e. Did you go into BOINC Manager, select Projects, select SETI@Home (or any project), then hit the Update button on the left?

It should kick in eventually.
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Message 381720 - Posted: 29 Jul 2006, 20:44:59 UTC

Hi Simon.

I´m running the SSE2 version of your ap, but no one has finnished yet.
Is this normal that they are only at 50% ????

Mike



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Message 381740 - Posted: 29 Jul 2006, 21:16:37 UTC - in response to Message 381699.  

I�m running a X2 4800+ Dual core.
I have set my preferences to 2 CPUs but it only shows 50% in task manager.
Also my times are slow i think.
About 4 houres with optimized SSE2 0.430 AR.

What is wrong.

regards Mike


Are you crunching 2 work units at a time? If so, 50% per cpu would equal a total of 100%.

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Message 381741 - Posted: 29 Jul 2006, 21:21:56 UTC - in response to Message 381720.  

Hi Simon.

I´m running the SSE2 version of your ap, but no one has finnished yet.
Is this normal that they are only at 50% ????

Mike


when the first WUs a ready, make an update, at that time BOINC will use 2 CPUs, i have the same poroblem with my P4 with HT Times ago, the BOINC Manager use some time to recognize this.

Greetings from Germany NRW
Ulli

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Message 381799 - Posted: 29 Jul 2006, 22:51:58 UTC

@Terry

Yes its running two WUs at one time.

What makes me wonder is that my CPUs needs over 4 houres for one.

My sons XP 64 3200+ needs less than 4 hr.
And he has only 512K cache and my toledo 1024 x 2.

Mike



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Message 382103 - Posted: 30 Jul 2006, 7:20:03 UTC


Crunching over night 4 results.
Between 4:30 and 4:50 for two.

Mike



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Message 382110 - Posted: 30 Jul 2006, 7:34:50 UTC

@Mike, Windows calculates your computer's processing time by the total of CPUs in your system. If you have two CPUs, then each one at 50% would make a total of 100%, so this is normal.

As for why it takes your computer longer even though it's faster - could be a few reasons.

My guess is that you have more installed and running on your machine that might steal a few seconds here and there from SETI@Home, such as a real-time AV scanner, real-time Adware scanner, file sharing app, web-based thermometer, or any other gadgets loaded with Windows. Also, if you use your computer more than your son does, this will cause your system to take longer as well.
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Message 382140 - Posted: 30 Jul 2006, 9:43:51 UTC

I think its caused by my slower RAMs.
I only have 512 MB DDR 333 my son have 1 Gig DDR 400 running at 217 Mhz.
BTW he has more stuff running in the backround like i have.

But thanks anyway.

I will buy other Ram package next week, so i´ll see.

regards Mike



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Message 382244 - Posted: 30 Jul 2006, 12:51:01 UTC
Last modified: 30 Jul 2006, 12:51:30 UTC

Definitely your RAM there Mike -

it sounds like you're running single-channel RAM with your X2 - that's holding it back a LOT.

If you can manage to grab a second stick of RAM and upgrade it, I believe you will see your times go down to 1/2 or 2/3ds of what they are now. Even dual channel 333 is way quicker than single channel.

Of course, dual channel DDR400 would be even better ;o)

Regards,
Simon.
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Message 382368 - Posted: 30 Jul 2006, 16:01:26 UTC

Its running in dual channel mode 2 x 256 MB DDR 333.

But will buy DDR 400 2 x 512 MB.

Mike



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Message 382481 - Posted: 30 Jul 2006, 18:27:39 UTC - in response to Message 382368.  

Its running in dual channel mode 2 x 256 MB DDR 333.

But will buy DDR 400 2 x 512 MB.

Mike
Just keep in mind Mike that, though 1G of RAM is going to speed your Windows experience up to a degree, simply having more will not speed up your crunching UNLESS you're usually running enough apps and background stuff to consume your current 512M. In other words, if BOINC is the only thing running on your desktop and background services are stopped, 512 is vastly more than BOINC requires. Under those circumstances, 1G will not help you crunch faster.

However, as has been said, faster RAM will help you, especially if is high quality RAM with fast timings. If you have the funds, don't go cheap here!! Get a matched pair of sticks from companies like Crucial, Corsair, OCZ, Muskin, PNY or Kingston.
Spend more than $100US and look for timings of 2-2-2-5 or 2-3-3-5. It will make a huge cumulative difference on your crunching, I promise.

Luck -

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Message 382533 - Posted: 30 Jul 2006, 20:14:33 UTC

Thanks Jim.

Kingston is my favorite.

Mike



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Message 382921 - Posted: 31 Jul 2006, 4:27:41 UTC

It sounds like you've got everything set up correctly.

I'd check if it's an error in the Science App with the work unit itself.

In BOINC Manager, on the Tasks tab, there should be 2 WU's with status of "Running".

Both of their CPU Time counters should be increasing second by second.
If you find one WU that is supposed to be running, but whose CPU Time counter isn't increasing, then highlight it and suspend it by pushing the "Suspend" button on the left.

Your CPU usage should go back up to 100%.

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Message 383078 - Posted: 31 Jul 2006, 9:43:14 UTC

Your sons 217fsb is why hes creaming you. I dont overclock my pcs anymore, but when i used to, it would decrease time per wu by quite a bit.

gl
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Message 383081 - Posted: 31 Jul 2006, 9:47:27 UTC

Looking at your Pcs and their benchmarks makes no sense at all. Are the 3500s the 3200 overclocked?.
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Message 384218 - Posted: 1 Aug 2006, 4:33:56 UTC

No they are 3500+ original.
Only my son overclocked a little.

Mike



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Message 384470 - Posted: 1 Aug 2006, 10:35:53 UTC

Thanks. Explains benchmarks.

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Message boards : Number crunching : X2 runs only at 50%


 
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