Hello,
I am attempting to build the latest stable version of ROOT from source with GPU support enabled but I am encountering a compilation error.
Environment:
-
OS: Ubuntu 22.04
-
Compiler: GNU 11.4.0
-
Hardware: 2x NVIDIA RTX 4500 Ada Generation
-
CUDA: 12.6 (Toolkit installed in
/usr/local/cuda-12.6) -
ROOT Version: 6.40.02 (Latest stable version - cloned via git)
Configuration:
I am using the following CMake flags
cmake -DCMAKE_INSTALL_PREFIX=../root_install \ -DCMAKE_CUDA_COMPILER=/usr/local/cuda-12.6/bin/nvcc \ -DCMAKE_CUDA_ARCHITECTURES=89 \ -Dcuda=ON \ -Dtmva-gpu=ON \ -DCMAKE_CXX_STANDARD=17 \ -DCMAKE_CUDA_STANDARD=17 \ -Dbuiltin_gl2ps=ON \ -Dbuiltin_ftgl=ON \ ../root_src
```
The Issue:
When running cmake --build . -- install -j24, the build consistently fails at ~66% with the following error:
In file included from input_line_7:10: .../root_build/include/MPSendRecv.h:18:10: remark: building module 'Net' as '.../root_build/lib/Net.pcm' [-Rmodule-build] #include "TSocket.h" ^ Error: Building module 'Net' implicitly. If 'Net' requires a dictionary please specify build dependency: 'G__MultiProc.cxx' depends on 'Net'.
```
Is there a known dependency order issue here, or should I be defining specific build targets to force the order?
Any advice would be appreciated.