Indirectly Device Accessible Iterator Trait and ADL Customization Point #2126
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Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
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Should we apply clang format suggestions here? |
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
The remaining clang format suggestion deviation is intentional for readibility. |
Signed-off-by: Dan Hoeflinger <[email protected]>
Signed-off-by: Dan Hoeflinger <[email protected]>
mmichel11
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Types are "Indirectly Device Accessible" when they can represent data which can inherently be dereferenced in a SYCL kernel. Marking types as such can help oneDPL avoid unnecessary data movement surrounding sycl kernels.
Provides a default implementation for the Argument-Dependant Lookup (ADL) customization point
is_onedpl_indirectly_device_accessible, as well as defined ADL overloads for oneDPL's provided iterators to provide rules for when they should be considered "indirectly device accessible".Provides a public trait,
is_indirectly_device_accessible[_v]which can be used to query whether a type is "indirectly device accessible". This can be used in combination withsycl::is_device_copyableand a check that it is a random access iterator to determine if it can be passed directly into sycl kernels without extra logic to copy the data to the device.PR implementing the proposed design in #1999, and the current state of specification PR uxlfoundation/oneAPI-spec#620.
Will not merge until specification has been merged.