build: update gt4py to get compiler support#399
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FlorianDeconinck merged 2 commits intoMar 12, 2026
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The PR adds extended compiler support by updating GT4Py, which now auto-detects compilers (gnu, intel, clang, and apple-clang) and sets defaults for the compiler flags accordingly. For example, not all compilers have the same OpenMP flags and `apple-clang` doesn't support it out of the box anyway. All of this is now caputred at the GT4Py level. In additition, GT4Py now automatically disables FMA operations in case of `-O0` (optimization level 0) to help with stability in porting when comparing to Fortran generated reference data.
…DaceConfig Fix optimization level (potentially) ignored on GPU
FlorianDeconinck
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Mar 12, 2026
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FlorianDeconinck
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Looking good - I pushed changes to the dace_config to reflect the gt4py.cartesian defaults
Let's wait for the CI to bless us again
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Description
The PR adds extended compiler support by updating GT4Py, which now auto-detects compilers (gnu, intel, clang, and apple-clang) and sets defaults for the compiler flags accordingly. For example, not all compilers have the same OpenMP flags and
apple-clangdoesn't support it out of the box anyway. All of this is now captured at the GT4Py level.In addiition, GT4Py now automatically disables FMA operations in case of
-O0(optimization level 0) to help with stability in porting when comparing to Fortran generated reference data.How has this been tested?
GT4Py changes were tested manually (because resetting environment variables and reloading the configuration isn't possible from within the
pytestframework).Checklist