How do I get my pc to run more than one task at a time?

Message boards : Number crunching : How do I get my pc to run more than one task at a time?
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mikey
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Message 444 - Posted: 8 Oct 2019, 14:35:11 UTC

I'm running Windows with Boinc 17.14.2 with VBox 5.2.8 and only 1 workunit runs at a time, even if I suspend every other Project NanoHub still only runs 1 wu at a time!
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Vezixig

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Message 457 - Posted: 19 Oct 2019, 6:35:29 UTC - in response to Message 444.  

Also, nanohub is blocking all other projects from running more wus leaving my cpu idling
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Hal Bregg

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Message 465 - Posted: 26 Oct 2019, 6:22:02 UTC - in response to Message 444.  

How much memory do you have on the host running nanoHUB?
Additionally, can you post log entry from BOINC manager so we can see what it says about the project?
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surreal

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Message 467 - Posted: 28 Oct 2019, 4:23:14 UTC
Last modified: 28 Oct 2019, 4:25:03 UTC

all the virtualbox instances on my machine require 2.25 to 2.6 gb of ram to run per core

i had to con the manager into running more instances of virtualbox by adjusting ram usage, and in most cases, can't get all 4 cores to run with 8gb of ram.

setting ram usage to 100% seems like a terrible idea most of the time because the virtual machines will over-allocate and cause massive swapfile thrashing that renders the system unusable and the cpu idles at 0% without any work being done. i've had to use 70% ram usage in the memory manager to get 2 cores to process WUs, and 85% for 3 cores. anything higher than about 86% causes 4 tasks to run and then they all just swap to death with no progress being gained.

maybe this prevents more people from using boinc, because any noob to this wouldn't think to do any of that; they would simply think 'sure use 100% of my ram, go ahead', and it results in 0% work being done in certain use-cases.
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Michael H.W. Weber

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Message 474 - Posted: 30 Oct 2019, 13:27:00 UTC - in response to Message 467.  

all the virtualbox instances on my machine require 2.25 to 2.6 gb of ram to run per core

i had to con the manager into running more instances of virtualbox by adjusting ram usage, and in most cases, can't get all 4 cores to run with 8gb of ram.

setting ram usage to 100% seems like a terrible idea most of the time because the virtual machines will over-allocate and cause massive swapfile thrashing that renders the system unusable and the cpu idles at 0% without any work being done. i've had to use 70% ram usage in the memory manager to get 2 cores to process WUs, and 85% for 3 cores. anything higher than about 86% causes 4 tasks to run and then they all just swap to death with no progress being gained.

maybe this prevents more people from using boinc, because any noob to this wouldn't think to do any of that; they would simply think 'sure use 100% of my ram, go ahead', and it results in 0% work being done in certain use-cases.

Correct.
See this one, too.

Michael.
President of Rechenkraft.net e.V. - Germany.
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Message boards : Number crunching : How do I get my pc to run more than one task at a time?


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