When building the wheel the file atomic_ops.spirv does compile but is not included in the archive

[fcharras]

Provided a build environment for numba_dpex, when running

python ./setup.py bdist_wheel

the archive does not include the file atomic_ops.spir, when installing the binary later there will not be support for atomic operations. But one can see that the file atomic_ops.spir, despite not being included in the archive, was effectively created.

The source of the issue might come from the MANIFEST.in or metadata in setup,py, those can be tricky to get right.

[fcharras]

The workaround I've found is to run python setup.py develop before running python setup.py bdist_wheel, it ensures that spirv compile steps are triggered early enough to ensure that the packaging steps will index the binaries that are created during compilation and add it to the tarball.

[diptorupd]

@fcharras More of an FYI at this point. I am working on overhauling the atomics support in numba-dpex (#783). The file you point to was added back when there was no native atomic instruction support in the hardware and the file atomic_ops.spir provided an emulation layer (copied from what the DPC++ compiler used to do) for atomics ops.

Since then, dpex does support generating native atomic instructions. The emulator is still the default and generating native atomics is an opt-in feature at the moment by setting NUMBA_DPEX_ACTIVATE_ATOMICS_FP_NATIVE to a non zero value.

In my current work, I am evaluating if emulation is still needed and if we can make generation of native atomics instructions the default.