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[REVIEW] Execution policy class #816

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merged 4 commits into from
Aug 13, 2021
Merged

[REVIEW] Execution policy class #816

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603bb06
Add execution policy class
viclafargue Jul 6, 2021
2d8afd0
Renaming back exec_policy function + creating class with conversion o…
viclafargue Jul 6, 2021
4c601bf
Merge branch 'branch-21.08' into exec-policy-class
viclafargue Jul 7, 2021
84a1328
Remove function
viclafargue Jul 8, 2021
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22 changes: 15 additions & 7 deletions include/rmm/exec_policy.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -28,14 +28,22 @@

namespace rmm {

using thrust_exec_policy_t =
thrust::detail::execute_with_allocator<rmm::mr::thrust_allocator<char>,
thrust::cuda_cub::execute_on_stream_base>;

/**
* @brief Returns a Thrust CUDA execution policy that uses RMM for temporary memory allocation on
* the specified stream.
* @brief Helper class usable as a Thrust CUDA execution policy
* that uses RMM for temporary memory allocation on the specified stream.
*/
inline auto exec_policy(cuda_stream_view stream = cuda_stream_default,
rmm::mr::device_memory_resource* mr = mr::get_current_device_resource())
{
return thrust::cuda::par(rmm::mr::thrust_allocator<char>(stream, mr)).on(stream.value());
}
class exec_policy : public thrust_exec_policy_t {
public:
explicit exec_policy(cuda_stream_view stream = cuda_stream_default,
rmm::mr::device_memory_resource* mr = mr::get_current_device_resource())
: thrust_exec_policy_t(
thrust::cuda::par(rmm::mr::thrust_allocator<char>(stream, mr)).on(stream.value()))
{
}
};

} // namespace rmm