[SYCL] Add RT dependency on interface layer for offloading #161195
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The SYCL runtime is device-agnostic and uses Unified Runtime (GitHub - oneapi-src/unified-runtime) as an external dependency. This Unified Runtime serves as an interface layer between the SYCL runtime and device-specific backends. Unified Runtime has several adapters that bind to various backends. NOTE: UR is considered as temporal solution until llvm-project/offload is fully functional and is able to replace UR. Signed-off-by: Tikhomirova, Kseniya <kseniya.tikhomirova@intel.com>
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This is part of the SYCL support upstreaming effort. The relevant RFCs can
be found here:
https://discourse.llvm.org/t/rfc-add-full-support-for-the-sycl-programming-model/74080
https://discourse.llvm.org/t/rfc-sycl-runtime-upstreaming/74479
The SYCL runtime is device-agnostic and uses Unified Runtime (GitHub -
oneapi-src/unified-runtime) as an external dependency. This Unified Runtime
serves as an interface layer between the SYCL runtime and device-specific
backends. Unified Runtime has several adapters that bind to various backends.
NOTE: UR is considered as temporal solution until llvm-project/offload is
fully functional and is able to replace UR.
This commit adds:
fetching UR, UR build as dependency, document with a short overview of UR
with links to repos and documentation.