esys-escript 6.1.1

esys-escript 6.1.1 is a maintenance release on top of 6.1.0, focused on build and packaging robustness across Windows (MSVC), macOS, conda-forge and pip. There are no API or numerical changes — scripts that run on 6.1.0 run unchanged.

Highlights

• Windows (MSVC): esys-escript now compiles cleanly with the MSVC toolchain.
• macOS: shared libraries and Python extensions carry an RPATH, so import esys.escript works from a plain interpreter without run-escript; fixed an OpenMP duplicate-runtime abort in Homebrew builds.
• Packaging: conda-forge and pip fixes so bare import esys works for conda/system installs.
• Docs: the run-escript man page is now consistent with the launcher's options.

Windows / MSVC build

• Use && instead of the and keyword, unsigned int instead of the POSIX uint, signed loop counters for OpenMP for loops, and an explicit std::complex<double> where MSVC requires it.
• Guard POSIX-only calls in Utils.cpp behind _WIN32.
• Don't propagate ESCRIPT_EXPORTS to the Python wrapper on Windows; skip pythonMPIcpp.pyd when mpi4py is disabled.
• Probe for the MUMPS MPI shim header on Windows and #undef MPI_COMM_WORLD before including it.
• Fix MSVC narrowing warnings — which also uncovered a latent Paso bug where Options::reordering was bool but must be index_t.

macOS

• Bake <prefix>/lib/esys (and <prefix>/lib) as an RPATH into every shared library and extension, so bare imports and the SCons configure probes resolve libomp/libgomp without LD_LIBRARY_PATH.
• Fix an OpenMP duplicate-runtime abort in Homebrew builds.
• Drop the deprecated boost::math::complex::acos fallback.

Packaging

• pip: only run the lib-path bootstrap when the esys_escript_lib/ directory is present, so bare import esys works for conda and system installs.
• conda-forge recipe updated for the 6.1 series.

Build system

• More robust Boost.NumPy detection: find NumPy's include directory early, normalise boost_libs before concatenation, and surface the probe exception text on failure.
• Use raw strings for the gmsh GEO templates; split ld_extra into separate link arguments; generate run_escript.py before the escript SConscript runs.

Other fixes

• Fix self-initialisation of X/Y/D in the Speckley DefaultAssembler2D.

Documentation

• The run-escript man page now documents all launcher options (adds -a and -x), corrects the -p/-f/-i/-o descriptions, and drops the untested -m (valgrind) option.

Availability

• conda-forge (conda install -c conda-forge esys-escript): Linux and Windows. macOS is temporarily unavailable pending an upstream Boost.Python bug — see conda-forge/boost-feedstock#266.
• Debian (python3-escript, python3-escript-mpi): 6.1 packaging is in preparation.
• From source: see installation.md.

Full change list: RELEASE_NOTES · Diff: 6.1.0...6.1.1