The current workunits use ~200MB or so during their last step (last 66 or 83%) and this is causing problems for some users.

The current workunits use ~200MB or so during their last step (last 66 or 83%) and this is causing problems for some users.

It might be worth making the possible memory usage a bit more prominent somewhere. If someone was thinking of running 2 models at the same time on a HT processor then that could mean 400 to 500MB of available memory needed.

Ian

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That might be why I could not complete a wu, I have 496 megs of RAM.

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I don't think so, Ed. There must be some other reason. I just finished my first WU on a 256MB machine. Yes, 256! No problem at all. After all, the app doesn't need much RAM memory, only about 40MB. It's the amount of virtual memory that is high, with a maximum of 240MB. Make sure in the Windows settings that the maximum page file size is set high enough.

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I agree I only have 256Mb and am now 91% through 3-4 hrs to go and I will be uploading the WU

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512MB is not necessary (due to the virual memory mechasim of OS), but highly recommended, it can reduce most I/O activities introdued by page faults when physical memory is not enough.

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I wouldnt say 512Mb is highly recommened at all my comp is about 5yrs old and only has 256Mb of memory it crunched the WU happily with no problems and I could use my system.

Cant wait for a new faster computer it takes so long to process anything

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512MB is recommended because we plan on doing tests for larger proteins and also plan to include protein design and docking tests, which could take more memory. It is not a requirement, just recommended.

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After all, the app doesn't need much RAM memory, only about 40MB. It's the amount of virtual memory that is high, with a maximum of 240MB.

I noticed that the app is using 177M of my RAM (and -205M of VM). It really slows things down when 3 other projects have TWO paused WUs each (HT).

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I agree I only have 256Mb and am now 91% through 3-4 hrs to go and I will be uploading the WU

Do you have your settings to leave the app in memory or to swap it out?

-- Skip

Just added 2gig to my 840ee HT and it likes having 3gig, all 4 processing at warp speed.....

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BOINC Wiki

My laptop only has 256MB. It works, but work units take a relatively long time for the processor's speed (average 2 3/4 hours on a 2.8GHz Pentium 4). Have been looking to add extra RAM anyway (not just for BOINC/Rosetta), so I've ordered it now. Maybe it will make a difference.

512MB won't be enough for some systems - if you're running Rosetta and at least one other project on a dual processor, dual core, or HT enabled system, I'd recommend at 1GB minimum (even that can be on the low side, depending on what else you have running)

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Depending on what one does with their machine, I'd recommend 1 GB of RAM anyhow, and I'm basing this off what I've seen with my current machine even though it does have just 1 processor... Lets just say that when I built my current Athlon XP box a little over 2.5 years ago, I did get 512 MB of RAM for it which I'm running now. Back then things were OK, but since them software has become a bit more, well bloated. Ain't that always the case though ROFL. I remember back when 8 MB of RAM really was more then enough (before Windows 95) and even before then. Well back in the days before peeps had hard drives on their PCs ;)

Through some of the games that have come out, ala Doom 3, Far Cry, and others more recent on top of winXP SP2, and yes I've got quite a few BOINC projects along with some other stuff running... Well at least I'm swapping more here then I was 2 years ago. Some others might not find 1 GB excessive.

Anyhow, I'll have to wait and sit on 512 MB for now. I'm upgrading to an Athlon 64 (got everything but the CPU now with the online shop I purchased it from claiming a manufacturer delay from AMD and it won't ship till tomarrow), but money is sorta tight. As such will have to sit on the 512 MB of 266 MHz DDR I currently have (actually 300 MHz, or Corsair XMS 2400) until I can upgrade that also, and yeah I know that will hold the A64 back as it's designed to use 400 MHz DDR. At least I've got the memory paired so it will be able to run dual channel on the new system (nForce chipset/socket 939 A64...) When I get around to the RAM, I'll be replacing it all with 1 GB of 400 MHz DDR (or perhaps a bit faster if I get the low latency XMS memory again...

BTW, if the project is recommending 512 MB, people might want a bit more given a setting of "leave in RAM". It's not just the memory the project uses, but the operating system and one's software besides. Unless the box is dedicated to Rosetta/BOINC...

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My first computer had 8K, only because I splurged and went all out ...

Oh, and 8K BASIC in ROM too ...

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My first computer had 8K, only because I splurged and went all out ...

Oh, and 8K BASIC in ROM too ...

My father spent his money and got the Tandy TRS-80 model 1 expantion unit with upped the memory to 128 K.

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I remember back when I was a kid, and my father was in the mall. The sales guy was telling him how great this computer was which had 128 Kbyte RAM, because of all one could do with it. Kinda funny thinking back, given what our comps need these days.

Albeit it isn't as funny as when Bill Gates was quoted as saying that 640 K aught to be enough for anyone. Course Microsoft, Windows, and things like Mr. Clippy are a big reason we need more RAM these days :D

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I remember back when I was a kid, and my father was in the mall. The sales guy was telling him how great this computer was which had 128 Kbyte RAM, because of all one could do with it. Kinda funny thinking back, given what our comps need these days.

Albeit it isn't as funny as when Bill Gates was quoted as saying that 640 K aught to be enough for anyone. Course Microsoft, Windows, and things like Mr. Clippy are a big reason we need more RAM these days :D

Those were the days when you had to insert a big floppy to boot up.

And touche about Microsoft! :D

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Regards,
Bob P.

I've got a small display on my wall next to my workstation -- on it I've mounted a fan of UNIVAC punch cards, a small reel of 1 inch tape (from IBM 360 days), an 8-1/2 inch floppy disk, a 3-1/2 inch diskette and a 3 inch CD disk. Wonder what will be next ...

(edited for content)

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My very first computer you had to enter the programs in binary. Then I got the latest in high-spead technology ... casette tape ... 30 minutes or more to load in the basic interpreter, then another to load in the program ... my first high speed storage was 8" floppy that held 150K bytes and cost me over a grand ... and that was when that was real money ...

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My first was a Commodore C16(yep, not a C64) w/ tape drive and amber monitor. I used to type programs in for days only to have to debug for weeks to find that one character I got wrong. :) Next came the IBM PCjr w/ 128Kb of "expanded" memory and a single 5 1/4" floppy drive... no hard drive.

I always wanted one of those 8" drives from Radio Shack because they just looked so huge. :D Ah... the good ol' days.

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Jeff's Computer Farm