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Add test data and reference output for the Umats MIMTP test suite. Files added: comparison/results_job_global-0.txt (reference results), data/Nellipsoids0.dat (ellipsoid/particle definitions), data/material.dat (material parameters and orientation), data/path.txt (test loading path and temperature), data/solver_control.inp (solver control parameters, executable), and data/solver_essentials.inp (solver type and rate). These provide input and expected output for regression tests of the MIMTP umat implementation.
Add MSVC dev environment and sccache actions to Windows jobs and enable sccache + Ninja integration. Install ninja in the editable install and CI steps, set SCCACHE_GHA_ENABLED and CMAKE_ARGS/CMAKE_*_LAUNCHER so scikit-build-core/CMake use sccache, and switch the Windows build to the Ninja generator. This speeds Windows builds by enabling compiler caching and ensures the compiler-launcher setting is honored.
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This pull request introduces improvements to tangent mode propagation in the micromechanics code and adds a new regression test to ensure correct behavior when using a plastic (modular) matrix in the Mori-Tanaka homogenization. The main focus is on ensuring that the correct tangent mode is consistently used and tested throughout the codebase.
Tangent mode propagation improvements:
tangent_modeis explicitly copied in thestate_variablesassignment operator and in therotate_g2lmethod, so that the solver’s tangent mode parameter is always properly propagated and used by the kernels. [1] [2]umat_multi, explicitly set each sub-phase'stangent_modetosimcoon::tangent_continuumat the start of the localization process, preventing the caller's tangent mode from leaking into the localization schemes.Testing and validation:
test/Umats/MIMTP/TMIMTP.cppthat verifies the correct tangent mode is used in the incremental Mori-Tanaka formulation with a plastic (modular) matrix, guarding against regressions in tangent mode propagation.test/CMakeLists.txtso it is included in the test suite.