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Not clear if "8G of RAM" below means 8G is assigned to the VM, or the host machine has 8G RAM total. Assuming the VM has ~8G assigned then the host should have 16-24G RAM total.
It reads like the VM is thrashing, e.g., swapping out to disk due to lack of RAM - which can cause a crash. I would try running the VM on a host machine that can provide more RAM. So if the VM is currently running with 8G, then try doubling it to 16G (on a host with at least 24 or 32G RAM).
- R.
On 10/2/23 10:31, Pål Gunnar Larsson (pall@ous-hf.no) wrote:
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Hello I am running FS 7.4.1 on Ubuntu 22.10 on Virtualbox 21.10, having 8Gb of ram. I am running a child-MRI where I got a message about a large defect which would run slowly or crash. FS is still running after more than 10 days (70%-100% CPU use), but there are nothing written to disk for 10 days. It is working on retesselation of defect 162. Is there any reason to wait it out? Or will the results be unpredictable?
Best Pål G. Larsson
Ikke sensitiv
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Thank you for fast reply. The computer has 32Gb. The virtual machine has 8Gb. According to ‘top’ all is used, except 140Mb. Swap has 1Gb of which 780Mb is used. Does swapping use lots of CPU? It is 100% most of the time.
Fra: fsbuild fsbuild@contbay.com Sendt: 3. oktober 2023 04:33 Til: freesurfer@nmr.mgh.harvard.edu Kopi: Pål Gunnar Larsson pall@ous-hf.no Emne: Re: [Freesurfer] Slow processing of large defect
Not clear if "8G of RAM" below means 8G is assigned to the VM, or the host machine has 8G RAM total. Assuming the VM has ~8G assigned then the host should have 16-24G RAM total.
It reads like the VM is thrashing, e.g., swapping out to disk due to lack of RAM - which can cause a crash. I would try running the VM on a host machine that can provide more RAM. So if the VM is currently running with 8G, then try doubling it to 16G (on a host with at least 24 or 32G RAM).
- R.
On 10/2/23 10:31, Pål Gunnar Larsson (pall@ous-hf.nomailto:pall@ous-hf.no) wrote:
External Email - Use Caution Hello
I am running FS 7.4.1 on Ubuntu 22.10 on Virtualbox 21.10, having 8Gb of ram.
I am running a child-MRI where I got a message about a large defect which would run slowly or crash. FS is still running after more than 10 days (70%-100% CPU use), but there are nothing written to disk for 10 days. It is working on retesselation of defect 162. Is there any reason to wait it out? Or will the results be unpredictable?
Best
Pål G. Larsson
Ikke sensitiv
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Pål Gunnar Larsson