Questions for cpp build

[rkooo567]

Is it necessary to create the conda env if I just would like to build cpp code (I don't need python binding)? If not, is it possible to educate me what's the minimal set of dependencies I need to build cpp part of ucxx?

[rkooo567]

Hmm actually also when I just followed the initial instruction;

create conda env (all_cuda118 one) ->

./build.sh libucxx benchmarks tests examples -v 

I am facing

CMake Error at /home/ray/anaconda3/envs/ucxx/lib/cmake/rmm/rmm-config.cmake:157 (thrust_create_target):
  Unknown CMake command "thrust_create_target".
Call Stack (most recent call first):
  build/cmake/CPM_0.38.5.cmake:243 (find_package)
  build/cmake/CPM_0.38.5.cmake:303 (cpm_find_package)
  build/_deps/rapids-cmake-src/rapids-cmake/cpm/find.cmake:176 (CPMFindPackage)
  build/_deps/rapids-cmake-src/rapids-cmake/cpm/rmm.cmake:75 (rapids_cpm_find)
  cmake/thirdparty/get_rmm.cmake:20 (rapids_cpm_rmm)
  cmake/thirdparty/get_rmm.cmake:24 (find_and_configure_rmm)
  CMakeLists.txt:97 (include)

(which is confusing because I didn't specify we need RMM)?

Have you seen a similar issue before? Or does it require me to have cuda 118 downloaded? (I used all_cuda-118_arch-x86_64)

Edit
It seems to work when I have cu118

[pentschev]

Is it necessary to create the conda env if I just would like to build cpp code (I don't need python binding)? If not, is it possible to educate me what's the minimal set of dependencies I need to build cpp part of ucxx?

It shouldn't be necessary to have conda at all, but currently we're mostly testing with those environments. It's indeed an oversight that we don't have minimal environment files for C++ and Python, I'm adding those now via #120. Could you please try the cpp.yaml one on your end? That should suffice for C++ builds.

Edit
It seems to work when I have cu118

Would you mind retrying with cpp.yaml? RMM shouldn't be necessary and at least on my end it compiled without problems even if I don't have RMM available, as it should be.

[rkooo567]

that's awesome! I will try the PR asap today!

[rkooo567]

It seems to work!