CmdStan with STANC2 on ARM

Interfaces CmdStan
1

I’m trying to get CmdStan working on AWS Graviton2 instance running Ubuntu.

Following @wds15 suggestion here, I’m trying to do this using STANC2=TRUE, but I’m getting a compilation error.

This is what I did:

  1. Cloned the CmdStan repo and checked-out to an older commit, before the stanc2 flag was deprecated: git checkout 07512ca459005994d9502ff12a02bd1c8082f405
  2. Updated submodules: git submodule update --recursive (build fails without this)
  3. Called make STANC2=true examples/bernoulli/bernoulli

Things were actually looking good compared to stanc3’s ./stanc: cannot execute binary file: Exec format error error, but compilation eventually failed here:

--- Compiling the main object file. This might take up to a minute. ---
g++ -std=c++1y -pthread -D_REENTRANT -Wno-sign-compare -Wno-ignored-attributes      -I stan/lib/stan_math/lib/tbb_2019_U8/include   -O3 -I src -I stan/src -I lib/rapidjson_1.1.0/ -I lib/CLI11-1.9.1/ -I stan/lib/stan_math/ -I stan/lib/stan_math/lib/eigen_3.3.9 -I stan/lib/stan_math/lib/boost_1.72.0 -I stan/lib/stan_math/lib/sundials_5.6.1/include    -DBOOST_DISABLE_ASSERTS         -c -o src/cmdstan/main.o src/cmdstan/main.cpp

--- Compiling pre-compiled header. This might take a few seconds. ---
g++ -std=c++1y -pthread -D_REENTRANT -Wno-sign-compare -Wno-ignored-attributes      -I stan/lib/stan_math/lib/tbb_2019_U8/include   -O3 -I src -I stan/src -I lib/rapidjson_1.1.0/ -I lib/CLI11-1.9.1/ -I stan/lib/stan_math/ -I stan/lib/stan_math/lib/eigen_3.3.9 -I stan/lib/stan_math/lib/boost_1.72.0 -I stan/lib/stan_math/lib/sundials_5.6.1/include    -DBOOST_DISABLE_ASSERTS         -c stan/src/stan/model/model_header.hpp -o stan/src/stan/model/model_header.hpp.gch

--- Translating Stan model to C++ code ---
bin/stanc2  --o=examples/bernoulli/bernoulli.hpp examples/bernoulli/bernoulli.stan
Model name=bernoulli_model
Input file=examples/bernoulli/bernoulli.stan
Output file=examples/bernoulli/bernoulli.hpp

--- Compiling, linking C++ code ---
g++ -std=c++1y -pthread -D_REENTRANT -Wno-sign-compare -Wno-ignored-attributes      -I stan/lib/stan_math/lib/tbb_2019_U8/include   -O3 -I src -I stan/src -I lib/rapidjson_1.1.0/ -I lib/CLI11-1.9.1/ -I stan/lib/stan_math/ -I stan/lib/stan_math/lib/eigen_3.3.9 -I stan/lib/stan_math/lib/boost_1.72.0 -I stan/lib/stan_math/lib/sundials_5.6.1/include    -DBOOST_DISABLE_ASSERTS         -c -Wno-ignored-attributes   -x c++ -o examples/bernoulli/bernoulli.o examples/bernoulli/bernoulli.hpp
g++ -std=c++1y -pthread -D_REENTRANT -Wno-sign-compare -Wno-ignored-attributes      -I stan/lib/stan_math/lib/tbb_2019_U8/include   -O3 -I src -I stan/src -I lib/rapidjson_1.1.0/ -I lib/CLI11-1.9.1/ -I stan/lib/stan_math/ -I stan/lib/stan_math/lib/eigen_3.3.9 -I stan/lib/stan_math/lib/boost_1.72.0 -I stan/lib/stan_math/lib/sundials_5.6.1/include    -DBOOST_DISABLE_ASSERTS               -Wl,-L,"/home/ec2-user/cmdstan/stan/lib/stan_math/lib/tbb" -Wl,-rpath,"/home/ec2-user/cmdstan/stan/lib/stan_math/lib/tbb"      examples/bernoulli/bernoulli.o src/cmdstan/main.o         stan/lib/stan_math/lib/sundials_5.6.1/lib/libsundials_nvecserial.a stan/lib/stan_math/lib/sundials_5.6.1/lib/libsundials_cvodes.a stan/lib/stan_math/lib/sundials_5.6.1/lib/libsundials_idas.a stan/lib/stan_math/lib/sundials_5.6.1/lib/libsundials_kinsol.a  stan/lib/stan_math/lib/tbb/libtbb.so.2 -o examples/bernoulli/bernoulli
src/cmdstan/main.o: In function `cmdstan::command(int, char const**)':
main.cpp:(.text+0x7444): undefined reference to `get_stan_profile_data[abi:cxx11]()'
collect2: error: ld returned 1 exit status
make: *** [examples/bernoulli/bernoulli] Error 1

Any idea why this fails?

1 Like
2

STANC2 does not work in 2.26 as there were a few breaking changes that prevent it to work. Its now been removed on develop. It should still work with 2.25 if I recall correctly.

The other option is to use emulation for stanc3 compilation phase.

@StaffanBetner has used this. There is an issue for this: QEMU emulation of stanc3 on architectures without provided binaries · Issue #956 · stan-dev/cmdstan · GitHub

Also see Problem compiling models with cmdstan on arm64

1 Like