BlockSyncNoOp.hpp

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/* Copyright 2022 Axel Huebl, Benjamin Worpitz, Matthias Werner, René Widera, Jan Stephan, Bernhard Manfred Gruber
 * SPDX-License-Identifier: MPL-2.0
 */
 
#pragma once
 
#include "alpaka/block/sync/Traits.hpp"
#include "alpaka/core/Common.hpp"
 
namespace alpaka
{
    //! The no op block synchronization.
    class BlockSyncNoOp : public interface::Implements<ConceptBlockSync, BlockSyncNoOp>
    {
    };
 
    namespace trait
    {
        template<>
        struct SyncBlockThreads<BlockSyncNoOp>
        {
            ALPAKA_NO_HOST_ACC_WARNING
            ALPAKA_FN_ACC static auto syncBlockThreads(BlockSyncNoOp const& /* blockSync */) -> void
            {
                // Nothing to do.
            }
        };
 
        template<typename TOp>
        struct SyncBlockThreadsPredicate<TOp, BlockSyncNoOp>
        {
            ALPAKA_NO_HOST_ACC_WARNING
            ALPAKA_FN_ACC static auto syncBlockThreadsPredicate(BlockSyncNoOp const& /* blockSync */, int predicate)
                -> int
            {
                return predicate;
            }
        };
    } // namespace trait
} // namespace alpaka