2 * Copyright (c) 2016-2018 ARM Limited.
4 * SPDX-License-Identifier: MIT
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24 #ifndef __ARM_COMPUTE_IFUNCTION_H__
25 #define __ARM_COMPUTE_IFUNCTION_H__
29 /** Base class for all functions */
34 virtual ~IFunction() = default;
35 /** Run the kernels contained in the function
38 * - Multi-threading is used for the kernels which are parallelisable.
39 * - By default std::thread::hardware_concurrency() threads are used.
41 * @note @ref CPPScheduler::set_num_threads() can be used to manually set the number of threads
44 * - All the kernels are enqueued on the queue associated with CLScheduler.
45 * - The queue is then flushed.
47 * @note The function will not block until the kernels are executed. It is the user's responsibility to wait.
48 * @note Will call prepare() on first run if hasn't been done
50 virtual void run() = 0;
51 /** Prepare the function for executing
53 * Any one off pre-processing step required by the function is handled here
55 * @note Prepare stage might not need all the function's buffers' backing memory to be available in order to execute
57 virtual void prepare()
62 #endif /*__ARM_COMPUTE_IFUNCTION_H__ */