Target CPU run time Option

Questions and Answers : Preferences : Target CPU run time Option

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Giles

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Message 64435 - Posted: 11 Dec 2009, 17:00:41 UTC

Hello,

Could someone please explain what the option: Target CPU run time does and what is the recommended setting for it?

I crunch Seti@home and Rosetta@home on the same 4-core workstation. I have allocated 2 cores to S@H and 2 for R@H. I want to set the option to the best setting for my configuration. The computer is on 24/7/365... Thank you.
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Mod.Sense
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Message 64442 - Posted: 12 Dec 2009, 3:48:17 UTC

There was a discussion about it here. There are many others, but most of them are found under threads that are discussing RAC as the measure of determination for the "best setting for my configuration".

Bottom line, it won't really affect your RAC. If your machine is on most of the time, then longer runtimes just let you get more work done with less tasks and less downloads.
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Giles

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Message 64443 - Posted: 12 Dec 2009, 4:24:02 UTC - in response to Message 64442.  
Last modified: 12 Dec 2009, 4:29:00 UTC

There was a discussion about it here. There are many others, but most of them are found under threads that are discussing RAC as the measure of determination for the "best setting for my configuration".

Bottom line, it won't really affect your RAC. If your machine is on most of the time, then longer runtimes just let you get more work done with less tasks and less downloads.


Thanks Mod.Sense!

BTW, before I posted I did do a search using the 'Search forums' button for Target CPU run time and nothing came up. If you do a 'Search forums' now this is the only thread that comes up, but the thread you posted the link to in Number Crunching does not! The search limit is set to only 30 days so I guess next time I have to do an Advanced search :-)
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Message 64448 - Posted: 12 Dec 2009, 15:33:47 UTC
Last modified: 12 Dec 2009, 15:51:09 UTC

I hear ya, the search (and lack thereof) is one of my pet peeves. Sometimes simplest thing to do is follow the next search that says it uses Google, and be sure the radio button for searching the "bakerlab only" is selected.

I've been posting things for more then that year and I cannot even find my own posts anymore :(
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Message 64558 - Posted: 20 Dec 2009, 23:41:33 UTC

I have a question about the Target CPU Runtime defaults. I read the FAQ, which says that the default target CPU runtime is about 8 hours. But when I checked my own preferences (on which I usually take the defaults), I had no CPU runtime amount chosen, and the note next to the dropdown list suggested that, in the absence of a choice, the default was about 3 hours. Which is correct?

Also, I have a new computer with a quad core chip, which I run all day and turn off at night. What would be the best runtime default for that?
--hedera

Never be afraid to try something new. Remember that amateurs built the ark. Professionals built the Titanic.

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Message 64565 - Posted: 21 Dec 2009, 13:54:17 UTC

3hrs is now the correct default, but I can only change the FAQ's that were authored by mod.zilla to make a revision.

The target is up to you. Longer runtimes mean less frequent interaction with the servers, which means less overhead for the project, and less download bandwidth for you. I generally recommend a target runtime roughly equal to one day of runtime. If your machine is on 10hrs per day, I'd make it somewhere between 8 and 12 hours. But that's just my personal preference, trying to strike a balance between getting results back ASAP, having enough work on-hand if the project should have an outage, and showing signs of progress by moving through work units.
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Message 64567 - Posted: 21 Dec 2009, 16:03:04 UTC - in response to Message 64565.  

3hrs is now the correct default, but I can only change the FAQ's that were authored by mod.zilla to make a revision.

The target is up to you. Longer runtimes mean less frequent interaction with the servers, which means less overhead for the project, and less download bandwidth for you. I generally recommend a target runtime roughly equal to one day of runtime. If your machine is on 10hrs per day, I'd make it somewhere between 8 and 12 hours. But that's just my personal preference, trying to strike a balance between getting results back ASAP, having enough work on-hand if the project should have an outage, and showing signs of progress by moving through work units.


Thanks for the explanation; I've set it for 8 hours, we'll see how that goes.
--hedera

Never be afraid to try something new. Remember that amateurs built the ark. Professionals built the Titanic.

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Questions and Answers : Preferences : Target CPU run time Option



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