test failure on unstable mpi_gf_np2 / 3 /4 failing

[the-hampel]

currently the solid_dmft CI (unstable branch) is failing because on triqs/unstable 3 tests seem to fail https://github.com/TRIQS/solid_dmft/actions/runs/12678000403/job/35334605738 . I can reproduce the issue locally on my Mac with a completely different compiler setup. The test output is:

    Start 166: mpi_gf_np2

166: Test command: /opt/homebrew/bin/mpiexec "-n" "2" "--oversubscribe" "/Users/ahampel/git/triqs/triqs/build/test/c++/gfs/mpi_gf"
166: Working Directory: /Users/ahampel/git/triqs/triqs/build/test/c++/gfs
166: Test timeout computed to be: 10000000
166: MPI environment detected
166: [==========] Running 5 tests from 1 test suite.
166: [----------] Global test environment set-up.
166: [----------] 5 tests from MpiGf
166: [ RUN      ] MpiGf.Reduce
166: MPI environment detected
166: [==========] Running 5 tests from 1 test suite.
166: [----------] Global test environment set-up.
166: [----------] 5 tests from MpiGf
166: [ RUN      ] MpiGf.Reduce
166: [       OK ] MpiGf.Reduce (0 ms)
166: [ RUN      ] MpiGf.AllReduce
166: [       OK ] MpiGf.AllReduce (0 ms)
166: [ RUN      ] MpiGf.ReduceView
166: [       OK ] MpiGf.ReduceView (0 ms)
166: [ RUN      ] MpiGf.ReduceBlock
166: [       OK ] MpiGf.Reduce (0 ms)
166: [ RUN      ] MpiGf.AllReduce
166: [       OK ] MpiGf.AllReduce (0 ms)
166: [ RUN      ] MpiGf.ReduceView
166: [       OK ] MpiGf.ReduceView (0 ms)
166: [ RUN      ] MpiGf.ReduceBlock
166: [       OK ] MpiGf.ReduceBlock (0 ms)
166: [ RUN      ] MpiGf.ReduceBlockView
166: [       OK ] MpiGf.ReduceBlock (0 ms)
166: [ RUN      ] MpiGf.ReduceBlockView
166: libc++abi: terminating due to uncaught exception of type nda::runtime_error: Error at /Users/ahampel/git/triqs/triqs/build/deps/nda_src/c++/nda/././linalg/../././_impl_basic_array_view_common.hpp : 455
166:
166: Error in assign_from_ndarray: Size mismatch:
166:  LHS.shape() = (16 1 1)
166:  RHS.shape() = (0 0 0)

Locally I am using:

-- The CXX compiler identification is Clang 19.1.4
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /opt/homebrew/opt/llvm/bin/clang++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- -------- Checking compiler C++ status-------------
-- Build type: Release
-- -------- triqs version and git hash detection -------------
-- Triqs version : 3.3.1
-- Git hash : 8bc7491ff20fe2b1188f9c582048bdc7b3e42d7c
...
--  =============== Configuring Dependency mpi ===============
-- mpi version : 1.3.0
-- mpi Git hash: a22f9a8c9c8755498743c1edb465ae4b0e0ef38e
-- Dependency GTest was already resolved.
-- Dependency itertools was already resolved.
-- -------- MPI detection -------------
-- Found MPI_CXX: /opt/homebrew/Cellar/open-mpi/5.0.6/lib/libmpi.dylib (found version "3.1")
-- Found MPI: TRUE (found version "3.1") found components: CXX
-- Found OpenMP_CXX: -fopenmp=libomp (found version "5.1")

and the solid_dmft CI is using: gcc 13 and openmpi 4 from Ubuntu 24.04 .

Could someone have look into this? Thanks!

[Thoemi09]

Hi Alex,

Sorry about that. There is already a PR that should fix the problem (#973) but we haven't merged it yet.