I am attempting to install CmdStan via CmdStanR on a AWS Graviton2 instance running Ubuntu 20.04. install_cmdstan() happily runs until trying to compile one of the examples, failing with: /bin/bash: bin/stanc: cannot execute binary file: Exec format error make: *** [make/program:53: examples/berno…

stanc3 is currently downloaded as a binary. I think it’s a bit of a trick to build and distributing it as a binary was an easy solution. If you can build your own version, you could probably use that. The repository is over here: https://github.com/stan-dev/stanc3 There are build directions there.…

I was hoping the Nix build would be straightforward, but it fails with: error: cannot coerce a set to a string, at /nix/store/h497gh2wc1zfv92928i7i5djrrfa76d6-nixpkgs-19.09/pkgs/build-support/ocaml/dune.nix:30:3 I am using the release/v2.24.1 branch. Is there a potentially easy fix, or is this a m…

Shoot, Nix shouldn’t be giving any trouble. I don’t recognize that error. I can look into it tomorrow morning. The non-Nix instructions should also work but I don’t use them myself.

[image] asceles: a more complicated debugging endeavor Not sure. I think the reason we distribute the binaries is it can be a bit of a trick.

Thanks for taking a look. Unfortunately setting up dependencies via setup_dev_env.sh also fails: [ERROR] The compilation of core failed at “/home/ubuntu/.opam/opam-init/hooks/sandbox.sh build jbuilder build -p core -j 31”. Fatal error: exception (runtime-lib/runtime.ml.E “comparison failed” ((swi…

As a quick followup, nix-shell --command "dune build" appears to have been more successful than nix-build. However, when compiling my Stan program, the compiler runs for some time and eventually ends with a seg fault. I guess running Stan on ARM is not an easy feat. This would be great to investig…

The easiest fix here is to use stanc2. This won’t give you the latest features, but that compiles from the c++ sources. I think setting STANC2=true In make local suffices.

Thanks. Unfortunately the motivation for doing this on ARM/Graviton2 was to take advantage of the large multi-core setup and reduce_sum. Since reduce_sum was introduced in Stan 2.23 and stanc2 ended with the 2.22 release, I am assuming it is not available there.

Oh…then that is not an option. The other way to work around this is to transpile the Stan file on a different machine and copy over the hpp then…but I have never done that…

reduce_sum is not available in stanc2. stanc2 is there to insure that models developed before 2.22 will be able to be compiled as before; it is slated for deprecation.

CmdStan on ARM error

General

avritt February 12, 2022, 8:39pm 18

I ran into a similar issue, the command in Pre-complied cmdstan model 'cannot execute binary file' error - #11 by rok_cesnovar worked for me

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CmdStan on ARM error

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