leaving in memory

Message boards : Number crunching : leaving in memory

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Profile KSMarksPsych
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Message 1898 - Posted: 29 Oct 2005, 5:40:14 UTC

i was just wondering...

i've read that rosetta is less likely to trash a wu if it is left in memory.

however, this is a boinc wide preference, not a rosetta one.

will this affect the other projects i'm running (E@H, P@H, LHC@H)?

thanks in advance,
kathryn
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Profile Paul D. Buck

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Message 1903 - Posted: 29 Oct 2005, 9:30:02 UTC

YES
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Profile KSMarksPsych
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Message 1908 - Posted: 29 Oct 2005, 13:00:12 UTC - in response to Message 1903.  

YES



ooookkkkaaaayyyy


is it a bad thing if i leave the wu in memory on the other projects?

please be patient with me. i'm trying to learn all that i can, but it is slow going (almost as slow as me learning korean).

kathryn
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Andrew

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Message 1914 - Posted: 29 Oct 2005, 14:11:30 UTC

I had a quick look at your computer stats, and you have 1GB of RAM, so you'll have no problem.

On my machines, which also have 1GB+ RAM, I leave the client in memory too and I haven't had any problems.


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Profile Paul D. Buck

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Message 1916 - Posted: 29 Oct 2005, 14:38:07 UTC

Katheryn,

Um, forgot the smiley ... :)

One of the reasons i have not been working this last week ... forgetting things ...

If you want too learn ... have I got a deal for you ... 1,000 pages of nothing but BOINC ...

Use the Wiki link by my signature block, bookmark it, then anytime someone uses a term you are not sure of ... look it up ... :)

Then you can look up all the remaining terms that you did not understand when you looked up the first one ...

We also have an Owner's Manual that talks to each tab (though not updated yet for 5.2.x) and menu ... also I have many of the core pages of the web site documented that you can look them up also ...

When you get adventurous, we have guides for making changes, definitions of most of the common messages, and trivia ... oh, and some FAQ ...

Even better, it changes every day ... LOTS of changes when I am well enough to work ... :)
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Profile KSMarksPsych
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Message 1920 - Posted: 29 Oct 2005, 17:56:03 UTC - in response to Message 1916.  

ok... no hard feelings. i know i've been having a rough time lately too.

i have checked out the wiki. i've even looked up error codes in it. not that i totally understand it... but i'm learning :)

now if you would only write a korean for dummies wiki, i'd be well on my way :)


::drops in 20 won:: (2 cents)



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Message 1922 - Posted: 29 Oct 2005, 19:46:28 UTC

Kathryn, generally it is better to leave the apps for ALL projects in memory. The only reason not to would be if you have a very small amount of RAM, 256MB or less, and intend to use the machine for other things besides BOINC. Any time a project is "switched out" and removed from memory, when it is restarted, it will have to restart from the last checkpoint - and you can lose several minutes of work. There is also always the risk that something will go wrong and it will get an error during the switch, which is much less likely if left in memory.

If you have "enough RAM" that your performance isn't crippled by having even ONE project running, it won't be affected by leaving even four or five preempted processes in memory; most decent OS's will shove them out of the way just fine. Thus this is a BOINC-wide preference - it should be based on the amount of RAM you have, not the projects you're running.

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Message 1934 - Posted: 30 Oct 2005, 3:26:58 UTC
Last modified: 30 Oct 2005, 3:28:40 UTC

I run 3 projects (LHC@Home 50% (when there's WU's to get!), Rosetta@Home 30%, and Seti@Home 20%) and leave them all in memory, and I don't have any problems at all with my 512 Mb RAM, with what I use my personal computer for (surfing and BOINC).

In case I should need a compiler on this computer, I'll just exit BOINC and start it again, after I have finished my work. But I usually don't work on this computer!

So it all depends on what you use your computer for besides BOINC.


[b]"I'm trying to maintain a shred of dignity in this world." - Me[/b]

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John McLeod VII
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Message 1935 - Posted: 30 Oct 2005, 3:27:27 UTC

Actually leave in memory leaves it in virtual memory - which mostly resides on the HD. I have a couple of machines with 128MB RAM and half a dozen projects, and they are successfully leaving all projects in VM, however, it is taking more than 1GB Swap File on these machines.


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Profile KSMarksPsych
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Message 1938 - Posted: 30 Oct 2005, 4:25:27 UTC

Thanks everyone...

I just let everything 'stay in memeory' and I don't seem to have a problem with anything else.

I basically use my 'puter for word processing, surfing, games, and a tiny bit of image manipulation (on GIMP). But even GIMP runs fine while BOINC is crunching away.

The machine is a couple years old, but my brother must have done a good job designing it when he ordered it from Compaq (it's a Presario 2500 laptop).

Kathryn
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Profile Paul D. Buck

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Message 1962 - Posted: 31 Oct 2005, 0:25:26 UTC - in response to Message 1920.  

ok... no hard feelings. i know i've been having a rough time lately too.

i have checked out the wiki. i've even looked up error codes in it. not that i totally understand it... but i'm learning :)

Well, I only speak American ... so ... no help there ...

If you do find something that does not make sense or is super confusing, you can help your fellow BOINCer by letting us know so we can review that part. That is how we improve the content ... so, we do like feedback ...

One of our greatest handicaps is being,perhaps, too knowledgable. Part of my arguments with UCB have revolved around this very concept ... Einstein once said something like "Things should be made as simple as possible, but no simpler ..."

I try to keep that in mind. But,sometimes we explain without explaining and those we want to catch ...
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Message boards : Number crunching : leaving in memory



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