Wow these WUs are big

Reaper13
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Topic 190854

I've just started crunching for this project and I see that these WUs take my machine around 12000. These are much larger than SETI I am assuming.

Michael Karlinsky
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Wow these WUs are big

Quote:
I've just started crunching for this project and I see that these WUs take my machine around 12000. These are much larger than SETI I am assuming.

WUs at E@H come in several sizes, ranging from approx. 5400-12000s for your type of computer. The longer the WU the larger the amount of granted credit, so size does not matter :)

Michael

tomba
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RE: WUs at E@H come in

Message 25581 in response to message 25580

Quote:
WUs at E@H come in several sizes, ranging from approx. 5400-12000s for your type of computer. The longer the WU the larger the amount of granted credit, so size does not matter :)


Yesterday I commissioned a P4 2.4mhz Viao laptop on einstein@home. It has six in the queue, each forecasting 23+ hours. The one that's finished (in 23+ hours) shows 84k CPU seconds for 110.25 claimed credit. The other two completions show 28.89 and 42.72 claimed credit. I'll get 42.72, which seems contrary to "the longer the WU the larger the amount of granted credit".

Size DOES appear to matter!

faeshn
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RE: RE: WUs at E@H come

Message 25582 in response to message 25581

Quote:
Quote:
WUs at E@H come in several sizes, ranging from approx. 5400-12000s for your type of computer. The longer the WU the larger the amount of granted credit, so size does not matter :)

Yesterday I commissioned a P4 2.4mhz Viao laptop on einstein@home. It has six in the queue, each forecasting 23+ hours. The one that's finished (in 23+ hours) shows 84k CPU seconds for 110.25 claimed credit. The other two completions show 28.89 and 42.72 claimed credit. I'll get 42.72, which seems contrary to "the longer the WU the larger the amount of granted credit".

http://einsteinathome.org/workunit/5372112

The one claiming 47 credits has same processor but he made the WU in approx. a quarter the time you needed. There is something wrong with your notebook, maybe it is running with reduced speed?

faeshn

tomba
tomba
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RE: RE: RE: WUs at E@H

Message 25583 in response to message 25582

Quote:
Quote:
Quote:
WUs at E@H come in several sizes, ranging from approx. 5400-12000s for your type of computer. The longer the WU the larger the amount of granted credit, so size does not matter :)

Yesterday I commissioned a P4 2.4mhz Viao laptop on einstein@home. It has six in the queue, each forecasting 23+ hours. The one that's finished (in 23+ hours) shows 84k CPU seconds for 110.25 claimed credit. The other two completions show 28.89 and 42.72 claimed credit. I'll get 42.72, which seems contrary to "the longer the WU the larger the amount of granted credit".

http://einsteinathome.org/workunit/5372112

The one claiming 47 credits has same processor but he made the WU in approx. a quarter the time you needed. There is something wrong with your notebook, maybe it is running with reduced speed?

faeshn


Looks like it! How do I check its performance?

Michael Roycraft
Michael Roycraft
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TOMBA, Your laptop is

TOMBA,

Your laptop is probably throttling back due to overheating problems. First thing to do is to clean out the dust bunnies around and behind the cooling slots on the bottom. Then, you might want to give it a little more unobstructed space by propping it up so that it has more room underneath.

If it's not a thermal issue, you'll have to check if it has anything else CPU-intensive running in the background.

Michael

microcraft
"The arc of history is long, but it bends toward justice" - MLK

Gerry Rough
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RE: TOMBA, Your laptop is

Message 25585 in response to message 25584

Quote:

TOMBA,

Your laptop is probably throttling back due to overheating problems. First thing to do is to clean out the dust bunnies around and behind the cooling slots on the bottom. Then, you might want to give it a little more unobstructed space by propping it up so that it has more room underneath.

If it's not a thermal issue, you'll have to check if it has anything else CPU-intensive running in the background.

Michael

If indeed you have heating problems with your laptop, I would add to the above that you consider getting a laptop cooler with a couple of fans or more to get the heat out of the way of the bottom of your rig. I wasn't having heat problems at all, but I decided to get a laptop cooler to help with the rig since I now run Einstein and Rosetta on that rig 24/7 when it is not in use for classes in college. I'm getting lots of credit from that Pent. M rig, and it is quite cool on the bottom with 25 CFM cooling things off. It is axiomatic that laptops are notorius for being heat sensitive with the smaller fans cooling things down. They only cost $15 - $40 by the way. Good investment for the long haul user who runs it 24/7.

Gerry Rough


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FalconFly
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RE: Looks like it! How do I

Message 25586 in response to message 25583

Quote:
Looks like it! How do I check its performance?

e.g. Download CPU-Z and have it display the CPU Clock in realtime while under full workload.

You'll instantly see the Pentium4 thermal throttling when it cuts in every now and then (or remains on permanently).

Cooling is indeed extremely important for Notebooks (especially for the relatively hot-headed Pentium4)

tomba
tomba
Joined: 1 Dec 05
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RE: TOMBA, Your laptop is

Message 25587 in response to message 25584

Quote:

TOMBA,

Your laptop is probably throttling back due to overheating problems. First thing to do is to clean out the dust bunnies around and behind the cooling slots on the bottom. Then, you might want to give it a little more unobstructed space by propping it up so that it has more room underneath.

Michael


Well, I blew it out all round with compressed air and propped it up.CPU time has dropped from 84K to 34K, for two results. Amazing! Many thanks for the advise. Tom

tomba
tomba
Joined: 1 Dec 05
Posts: 50
Credit: 2,191,093
RAC: 0

RE: RE: TOMBA, Your

Message 25588 in response to message 25585

Quote:
Quote:

TOMBA,

Your laptop is probably throttling back due to overheating problems. First thing to do is to clean out the dust bunnies around and behind the cooling slots on the bottom. Then, you might want to give it a little more unobstructed space by propping it up so that it has more room underneath.

If it's not a thermal issue, you'll have to check if it has anything else CPU-intensive running in the background.

Michael

If indeed you have heating problems with your laptop, I would add to the above that you consider getting a laptop cooler with a couple of fans or more to get the heat out of the way of the bottom of your rig. I wasn't having heat problems at all, but I decided to get a laptop cooler to help with the rig since I now run Einstein and Rosetta on that rig 24/7 when it is not in use for classes in college. I'm getting lots of credit from that Pent. M rig, and it is quite cool on the bottom with 25 CFM cooling things off. It is axiomatic that laptops are notorius for being heat sensitive with the smaller fans cooling things down. They only cost $15 - $40 by the way. Good investment for the long haul user who runs it 24/7.

Gerry Rough


Looks like I can buy one on eBay for about $17 shipped to me in France. Thanks for the pointer. Tom

tomba
tomba
Joined: 1 Dec 05
Posts: 50
Credit: 2,191,093
RAC: 0

RE: RE: Looks like it!

Message 25589 in response to message 25586

Quote:
Quote:
Looks like it! How do I check its performance?

e.g. Download CPU-Z and have it display the CPU Clock in realtime while under full workload.

You'll instantly see the Pentium4 thermal throttling when it cuts in every now and then (or remains on permanently).

Cooling is indeed extremely important for Notebooks (especially for the relatively hot-headed Pentium4)


Did that and it's consistently at around 2.38/2.39 (for a 2.4 P4). Looks like the problem's fixed. Thanks to everyone for the postings. Tom

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