of_scheduling_policy.hh revision 12696
111308Santhony.gutierrez@amd.com/* 212696Santhony.gutierrez@amd.com * Copyright (c) 2014-2017 Advanced Micro Devices, Inc. 311308Santhony.gutierrez@amd.com * All rights reserved. 411308Santhony.gutierrez@amd.com * 511308Santhony.gutierrez@amd.com * For use for simulation and test purposes only 611308Santhony.gutierrez@amd.com * 711308Santhony.gutierrez@amd.com * Redistribution and use in source and binary forms, with or without 811308Santhony.gutierrez@amd.com * modification, are permitted provided that the following conditions are met: 911308Santhony.gutierrez@amd.com * 1011308Santhony.gutierrez@amd.com * 1. Redistributions of source code must retain the above copyright notice, 1111308Santhony.gutierrez@amd.com * this list of conditions and the following disclaimer. 1211308Santhony.gutierrez@amd.com * 1311308Santhony.gutierrez@amd.com * 2. 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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 2511308Santhony.gutierrez@amd.com * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2611308Santhony.gutierrez@amd.com * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2711308Santhony.gutierrez@amd.com * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2811308Santhony.gutierrez@amd.com * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2911308Santhony.gutierrez@amd.com * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 3011308Santhony.gutierrez@amd.com * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 3111308Santhony.gutierrez@amd.com * POSSIBILITY OF SUCH DAMAGE. 3211308Santhony.gutierrez@amd.com * 3312696Santhony.gutierrez@amd.com * Authors: Sooraj Puthoor, 3412696Santhony.gutierrez@amd.com * Anthony Gutierrez 3511308Santhony.gutierrez@amd.com */ 3611308Santhony.gutierrez@amd.com 3712696Santhony.gutierrez@amd.com#ifndef __GPU_COMPUTE_OF_SCHEDULING_POLICY_HH__ 3812696Santhony.gutierrez@amd.com#define __GPU_COMPUTE_OF_SCHEDULING_POLICY_HH__ 3911308Santhony.gutierrez@amd.com 4011308Santhony.gutierrez@amd.com#include <vector> 4111308Santhony.gutierrez@amd.com 4212696Santhony.gutierrez@amd.com#include "gpu-compute/scheduling_policy.hh" 4312696Santhony.gutierrez@amd.com#include "gpu-compute/wavefront.hh" 4411308Santhony.gutierrez@amd.com 4512696Santhony.gutierrez@amd.com// oldest first where age is marked by the wave id 4612696Santhony.gutierrez@amd.comclass OFSchedulingPolicy final : public __SchedulingPolicy<OFSchedulingPolicy> 4711308Santhony.gutierrez@amd.com{ 4811308Santhony.gutierrez@amd.com public: 4912696Santhony.gutierrez@amd.com OFSchedulingPolicy() 5012696Santhony.gutierrez@amd.com { 5112696Santhony.gutierrez@amd.com } 5211308Santhony.gutierrez@amd.com 5312696Santhony.gutierrez@amd.com static Wavefront* 5412696Santhony.gutierrez@amd.com __chooseWave(std::vector<Wavefront*> *sched_list) 5512696Santhony.gutierrez@amd.com { 5612696Santhony.gutierrez@amd.com panic_if(!sched_list->size(), "OF scheduling policy sched list is " 5712696Santhony.gutierrez@amd.com "empty.\n"); 5812696Santhony.gutierrez@amd.com // set when policy choose a wave to schedule 5912696Santhony.gutierrez@amd.com Wavefront *selected_wave(nullptr); 6012696Santhony.gutierrez@amd.com int selected_wave_id = -1; 6112696Santhony.gutierrez@amd.com int selected_position = 0; 6211308Santhony.gutierrez@amd.com 6312696Santhony.gutierrez@amd.com for (int position = 0; position < sched_list->size(); ++position) { 6412696Santhony.gutierrez@amd.com Wavefront *cur_wave = sched_list->at(position); 6512696Santhony.gutierrez@amd.com int cur_wave_id = cur_wave->wfDynId; 6612696Santhony.gutierrez@amd.com 6712696Santhony.gutierrez@amd.com // Choosed wave with the lowest wave ID 6812696Santhony.gutierrez@amd.com if (selected_wave_id == -1 || cur_wave_id < selected_wave_id) { 6912696Santhony.gutierrez@amd.com selected_wave_id = cur_wave_id; 7012696Santhony.gutierrez@amd.com selected_wave = cur_wave; 7112696Santhony.gutierrez@amd.com selected_position = position; 7212696Santhony.gutierrez@amd.com } 7312696Santhony.gutierrez@amd.com } 7412696Santhony.gutierrez@amd.com 7512696Santhony.gutierrez@amd.com // Check to make sure ready list had at least one schedulable wave 7612696Santhony.gutierrez@amd.com panic_if(!selected_wave, "No wave found by OF scheduling policy.\n"); 7712696Santhony.gutierrez@amd.com sched_list->erase(sched_list->begin() + selected_position); 7812696Santhony.gutierrez@amd.com 7912696Santhony.gutierrez@amd.com return selected_wave; 8012696Santhony.gutierrez@amd.com } 8111308Santhony.gutierrez@amd.com}; 8211308Santhony.gutierrez@amd.com 8312696Santhony.gutierrez@amd.com#endif // __GPU_COMPUTE_OF_SCHEDULING_POLICY_HH__ 84