I am attempting to build cuda-aware OpenMPI 5.0.6 with NVHPC 25.1. I am using the configure line below:
…/configure CC=nvc CXX=nvc++ FC=nvfortran CFLAGS=“-fPIC -O” CXXFLAGS=“-fPIC -O” FCFLAGS=“-fPIC -O” FCFLAGS=“-fPIC -O” CFLAGS=“-fPIC -O” CXXFLAGS=“-fPIC -O” --prefix=/project/6024112/ntandon/software/StdEnv2023_nvhpc25.1/openmpi-5.0.6 --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --with-slurm --disable-wrapper-runpath --disable-wrapper-rpath --with-show-load-errors=no --enable-mpi1-compatibility --enable-mca-dso=common-ofi,common-ucx,accelerator-cuda,atomic-ucx,btl-ofi,btl-smcuda,btl-uct,coll-ucc,fs-lustre,mtl-ofi,mtl-psm2,osc-ucx,pml-ucx,rcache-gpusm,rcache-rgpusm,scoll-ucc,spml-ucx,sshmem-ucx --with-cuda=/cvmfs/soft.computecanada.ca/easybuild/software/2023/x86-64-v3/Core/cudacore/12.6.2 --with-cuda-libdir=/cvmfs/soft.computecanada.ca/easybuild/software/2023/x86-64-v3/Core/cudacore/12.6.2/lib64/stubs --enable-shared --with-hwloc=/cvmfs/soft.computecanada.ca/easybuild/software/2023/x86-64-v3/Compiler/gcccore/hwloc/2.10.0 --with-libevent=/cvmfs/soft.computecanada.ca/gentoo/2023/x86-64-v3/usr --with-ofi=/cvmfs/soft.computecanada.ca/easybuild/software/2023/x86-64-v3/Compiler/gcccore/libfabric/1.21.0 --with-pmix=/cvmfs/soft.computecanada.ca/easybuild/software/2023/x86-64-v3/Compiler/gcccore/pmix/5.0.2 --with-ucx=/cvmfs/soft.computecanada.ca/easybuild/software/2023/x86-64-v3/Compiler/gcccore/ucx/1.16.0 --with-ucc=/cvmfs/soft.computecanada.ca/easybuild/software/2023/x86-64-v3/Compiler/gcccore/ucc/1.3.0 --with-prrte=/cvmfs/soft.computecanada.ca/easybuild/software/2023/x86-64-v3/Compiler/gcccore/prrte/3.0.5
Configure completes successfully, but I get a mess of compilation errors like “identifier X is undefined” and “struct X has no field Y”.
I was able to build OpenMPI 4.x successfully using essentially the same options as above. So I’m not sure what the issue is with OpenMPI 5, and I would appreciate guidance. Thanks!