Object-Oriented CPU JIT Compiler
The CPU JIT compiler in pystencils shall be rebuilt using an object-oriented design.
The JIT-compiler shall be implemented as a class and represented at runtime by objects of that class. Each JIT instance shall act as a configurable factory for executable Python kernels. It shall be incrementally configurable. Its produced kernel wrappers shall check any kernel preconditions (see #119 (closed)), potentially with configurable granularity, either in Python or C code. It shall cache the results of these checks (c.f. cupy-JIT) and not re-perform then for repeated calls.
The JIT compiler shall be tested using an extensive test suite. Tests shall cover
- Various valid kernels
- Error behavior when trying to compile an invalid kernel
- Error behavior when calling kernels with illegal arguments
- Wrong array / scalar types
- Incompatible array shapes
- Non-satisfied pointer alignments
- Parameter caching
- Compatibility with various host compilers available on the current machine
The API design for the JIT compiler, and a prototype implementation based on pybind11, were contributed in !445 (merged).
To Do
- Reimplement the extension module builder without pybind11 to accelerate compilation
- Add support for checking kernel preconditions (once #119 (closed) is through)
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