1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* Copyright (c) 2014-2015 Advanced Micro Devices, Inc.
* All rights reserved.
*
* For use for simulation and test purposes only
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Author: Sooraj Puthoor
*/
#include "gpu-compute/of_scheduling_policy.hh"
#include "gpu-compute/wavefront.hh"
Wavefront*
OFSchedulingPolicy::chooseWave()
{
// Set when policy choose a wave to schedule
bool waveChosen = false;
Wavefront *selectedWave = nullptr;
int selectedWaveID = -1;
uint32_t selectedPosition = 0;
for (int position = 0; position < scheduleList->size(); ++position) {
Wavefront *curWave = scheduleList->at(position);
uint32_t curWaveID = curWave->wfDynId;
// Choosed wave with the lowest wave ID
if (selectedWaveID == -1 || curWaveID < selectedWaveID) {
waveChosen = true;
selectedWaveID = curWaveID;
selectedWave = curWave;
selectedPosition = position;
}
}
// Check to make sure ready list had atleast one schedulable wave
if (waveChosen) {
scheduleList->erase(scheduleList->begin() + selectedPosition);
} else {
panic("Empty ready list");
}
return selectedWave;
}
void
OFSchedulingPolicy::bindList(std::vector<Wavefront*> *list)
{
scheduleList = list;
}
|
