Cross-Compiling Julia from source for the Raspberry Pi 3b+

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#1

Hi everyone,

I was just wondering if there were any easy ways to compile Julia for aarch64. I have found JuliaBerry, which has a guide on how to locally compile Julia on the Pi itself, but this will take almost an entire day. Is there any way of cross-compiling on my main workstation (running Windows, but will likely use WSL and Debian to actually do the compilation)?

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#2

Any particular reason for not using the pre-built binary from Download Julia?

#3

I’ve compiled it on an 8Gb RAM Pi4 in maybe an hour or two. You do need at least 4Gb RAM now. What version are you using that it takes almost a day?

I’ve compiled Julia on many SMBC through the years without issues or particularly long compile times.

#4

Mostly this is just part of a hobby project using a small SLURM cluster. It would be nice to have a self containing installation of julia that can be shared between all the nodes.

#5

It’s a 3b+ with only 1GB of memory, so it’s mainly about needing a large swap file which really slows things down.

#6

I must be missing why using the official binaries is not an option then. You don’t have to compile anything.

Also, cross-compiling Julia isn’t really feasible at the moment: you can actually cross-compile the executable, but to build the sysimage (which is by far the bottleneck of the process) you have to run it.

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