numba_dpex.ocl.atomics.atomic_helper module

numba_dpex.ocl.atomics.atomic_helper.get_memory_semantics_mask(memory_order)

This function translates SYCL memory order to SPIRV memory semantics mask.

For DPCPP implementation please refer: https://github.com/intel/llvm/blob/sycl-nightly/20210507/sycl/include/CL/sycl/detail/spirv.hpp#L220

numba_dpex.ocl.atomics.atomic_helper.get_scope(memory_scope)

This function translates SYCL memory scope to SPIRV scope.

For DPCPP implementation please refer: https://github.com/intel/llvm/blob/sycl-nightly/20210507/sycl/include/CL/sycl/detail/spirv.hpp#L247

class numba_dpex.ocl.atomics.atomic_helper.sycl_memory_order(value)

Bases: enum.Enum

An enumeration of SYCL memory order. For more details please refer to SYCL 2020 specification, section 3.8.3.1 (https://www.khronos.org/registry/SYCL/specs/sycl-2020/html/sycl-2020.html#_memory_ordering).

For DPCPP implementation please refer: https://github.com/intel/llvm/blob/sycl-nightly/20210507/sycl/include/CL/sycl/ONEAPI/atomic_enums.hpp#L25

Memory Order	Enum value
relaxed	0
acquire	1
__consume_unsupported	2
release	3
acq_rel	4
seq_cst	5

acq_rel = 5

acquire = 2

relaxed = 1

release = 4

seq_cst = 6

class numba_dpex.ocl.atomics.atomic_helper.sycl_memory_scope(value)

Bases: enum.Enum

An enumeration of SYCL memory scope. For more details please refer to SYCL 2020 specification, section 3.8.3.2 (https://www.khronos.org/registry/SYCL/specs/sycl-2020/html/sycl-2020.html#_memory_scope).

For DPCPP implementation please refer: https://github.com/intel/llvm/blob/sycl-nightly/20210507/sycl/include/CL/sycl/ONEAPI/atomic_enums.hpp#L45

Memory Scope	Enum value
work_item	0
sub_group	1
work_group	2
device	3
system	4

device = 4

sub_group = 2

system = 5

work_group = 3

work_item = 1