Support for composite devices #1993
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View rendered docs @ https://intelpython.github.io/dpctl/pulls/1993/index.html |
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Array API standard conformance tests for dpctl= ran successfully. |
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Also removes some remaining, sporadic references to the deprecated sycl::info::device_type::host
These device types act unexpectedly in DPC++ 2025.0.4, returning the same result as `sycl::info::device_type::all`, so use unknown device and return an empty list instead
This leverages oneAPI extension for composite devices to add the free function `ext_oneapi_get_composite_devices` to the main dpctl namespace
This method is only applicable for level_zero backend, returning an empty list for all other backend types
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Array API standard conformance tests for dpctl=0.19.0dev0=py310h93fe807_544 ran successfully. |
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This PR proposes supporting the oneAPI composite devices extension in dpctl, which exposes multi-tile GPU devices as root devices for each tile, but also provides access to the composite devices from level zero prior to
ZE_FLAT_DEVICE_HIERARCHY=FLATbecoming the default. i.e., withZE_FLAT_DEVICE_HIERARCHY=COMPOSITE, the composite devices are root devices, but withZE_FLAT_DEVICE_HIERARCHY=COMBINED, a user gains access to these composite devices through dedicated APIs.