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Python and Java API / Running Metashape on a headless VM means no multithreading
« on: October 18, 2023, 09:28:55 AM »
Hi there,
We're using Metashape as part of a fully automated pipeline, so it is running on a virtual machine (VM) in Google Cloud.
We have it running succesfully completely headless after a bit of fiddling around with the display settings.
Currently, to get it running we have the following lines in a bash script (in amongst some other stuff)
Xvfb :1 &
PID=$!
DISPLAY=:1 /usr/local/metashape-pro/metashape.sh -r /usr/local/metashape_automation_repo/metashape_automation.py
kill $PID
Since adding this we have noticed that the software is no longer using all the CPU available to it. It still seems to be using the GPU, however.
My linux/bash isn't good enough to know if this is the cause of the problem, but if there are any linux gurus here I'd love to hear if this is the only way to achieve headless operation?
But I'm asking more generally, also, if there are any flags or settings that can force Metashape to be multithreaded, or specify the number of CPU to working on.
Or can we get it to print how many CPU it sees, so we can check if it is indeed only seeing a single CPU?
We're using Metashape as part of a fully automated pipeline, so it is running on a virtual machine (VM) in Google Cloud.
We have it running succesfully completely headless after a bit of fiddling around with the display settings.
Currently, to get it running we have the following lines in a bash script (in amongst some other stuff)
Xvfb :1 &
PID=$!
DISPLAY=:1 /usr/local/metashape-pro/metashape.sh -r /usr/local/metashape_automation_repo/metashape_automation.py
kill $PID
Since adding this we have noticed that the software is no longer using all the CPU available to it. It still seems to be using the GPU, however.
My linux/bash isn't good enough to know if this is the cause of the problem, but if there are any linux gurus here I'd love to hear if this is the only way to achieve headless operation?
But I'm asking more generally, also, if there are any flags or settings that can force Metashape to be multithreaded, or specify the number of CPU to working on.
Or can we get it to print how many CPU it sees, so we can check if it is indeed only seeing a single CPU?
