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Fix in-place execution of adjacent difference #492

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May 25, 2022
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Fix in-place execution of adjacent difference #492

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6 changes: 3 additions & 3 deletions cub/device/dispatch/dispatch_adjacent_difference.cuh
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Original file line number Diff line number Diff line change
Expand Up @@ -106,7 +106,7 @@ DeviceAdjacentDifferenceDifferenceKernel(InputIteratorT input,
agent.Process(tile_idx, tile_base);
}

template <typename InputIteratorT>
template <typename InputIteratorT, bool MayAlias = true>
struct DeviceAdjacentDifferencePolicy
{
using ValueT = typename std::iterator_traits<InputIteratorT>::value_type;
Expand All @@ -131,7 +131,7 @@ struct DeviceAdjacentDifferencePolicy
AgentAdjacentDifferencePolicy<128,
Nominal8BItemsToItems<ValueT>(7),
BLOCK_LOAD_WARP_TRANSPOSE,
LOAD_LDG,
MayAlias ? LOAD_CA : LOAD_LDG,
BLOCK_STORE_WARP_TRANSPOSE>;
};

Expand All @@ -145,7 +145,7 @@ template <typename InputIteratorT,
bool MayAlias,
bool ReadLeft,
typename SelectedPolicy =
DeviceAdjacentDifferencePolicy<InputIteratorT>>
DeviceAdjacentDifferencePolicy<InputIteratorT, MayAlias>>
struct DispatchAdjacentDifference : public SelectedPolicy
{
using InputT = typename std::iterator_traits<InputIteratorT>::value_type;
Expand Down