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### Description Enables signal handling and floating-point exception (FPE) traps for NANs when running the test suite, so it will stop and report an error when NANs are encountered. (This only works on CPUs.) In order for this to work, we change the signal handling settings back to AMReX defaults. We also have to suppress FPEs when importing `numpy` (see numpy/numpy#20504). By default, many compilers perform optimizations that assume that floating-point exceptions are disabled, and will often produce spurious FPEs for vectorized code (however, this does not affect the results in any way). There are compiler-specific options to disable this behavior for Intel and Clang. Note that `AMReX_FPE=ON` only sets the compiler option `-ftrapv` (or similar). We instead add the runtime options `amrex.fpe_trap_invalid=1`, `amrex.fpe_trap_zero=1`, and `amrex.fpe_trap_overflow=1` to the command-line arguments for each test. These options can also be added to the input file (or command line) to debug individual problems. **Depends on:** * #667 * #668 * #671 ### Related issues Partially resolves #556. ### Checklist _Before this pull request can be reviewed, all of these tasks should be completed. Denote completed tasks with an `x` inside the square brackets `[ ]` in the Markdown source below:_ - [x] I have added a description (see above). - [x] I have added a link to any related issues see (see above). - [x] I have read the [Contributing Guide](https://github.com/quokka-astro/quokka/blob/development/CONTRIBUTING.md). - [ ] I have added tests for any new physics that this PR adds to the code. - [x] I have tested this PR on my local computer and all tests pass. - [x] I have manually triggered the GPU tests with the magic comment `/azp run`. - [x] I have requested a reviewer for this PR. --------- Co-authored-by: Piyush Sharda <34922596+psharda@users.noreply.github.com> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
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