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annotate graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/StaticNBodySpillTest.java @ 18408:2c3666f44855

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Truffle: initial commit of object API implementation
author Andreas Woess <andreas.woess@jku.at>
date Tue, 18 Nov 2014 23:19:43 +0100
parents 1fdecc36c8ac
children
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1 /*
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2 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 package com.oracle.graal.compiler.hsail.test;
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25
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26 import java.util.*;
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27
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28 import org.junit.*;
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29
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30 import com.oracle.graal.compiler.hsail.test.infra.*;
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31
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32 /**
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33 * This version of NBody causes Graal to generate register spilling code.
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34 */
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35 public class StaticNBodySpillTest extends GraalKernelTester {
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36
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37 static final int bodies = 5;
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38 static final float delT = .005f;
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39 static final float espSqr = 1.0f;
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40 static final float mass = 5f;
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41 static final int width = 768;
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42 static final int height = 768;
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43 // Positions xy and z of bodies.
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44 @Result private float[] inxyz = new float[bodies * 3];
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45 // Positions xy and z of bodies.
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46 @Result private float[] outxyz = new float[bodies * 3]; // positions xy and z of bodies
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47 // Velocity component of x,y and z of bodies.
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48 @Result private float[] invxyz = new float[bodies * 3];
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49 @Result private float[] outvxyz = new float[bodies * 3];
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50 static float[] seedxyz = new float[bodies * 3];
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51 static {
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52 final float maxDist = width / 4;
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53 for (int body = 0; body < (bodies * 3); body += 3) {
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54 final float theta = (float) (Math.random() * Math.PI * 2);
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55 final float phi = (float) (Math.random() * Math.PI * 2);
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56 final float radius = (float) (Math.random() * maxDist);
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57 seedxyz[body + 0] = (float) (radius * Math.cos(theta) * Math.sin(phi)) + width / 2;
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58 seedxyz[body + 1] = (float) (radius * Math.sin(theta) * Math.sin(phi)) + height / 2;
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59 seedxyz[body + 2] = (float) (radius * Math.cos(phi));
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60 }
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61 }
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62
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63 public static void run(float[] inxyz, float[] outxyz, float[] invxyz, float[] outvxyz, int gid) {
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64 final int count = bodies * 3;
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65 final int globalId = gid * 3;
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66 float accx = 0.f;
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67 float accy = 0.f;
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68 float accz = 0.f;
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69 for (int i = 0; i < count; i += 3) {
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70 final float dx = inxyz[i + 0] - inxyz[globalId + 0];
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71 final float dy = inxyz[i + 1] - inxyz[globalId + 1];
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72 final float dz = inxyz[i + 2] - inxyz[globalId + 2];
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73 final float invDist = (float) (1.0 / (Math.sqrt((dx * dx) + (dy * dy) + (dz * dz) + espSqr)));
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74 accx += mass * invDist * invDist * invDist * dx;
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75 accy += mass * invDist * invDist * invDist * dy;
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76 accz += mass * invDist * invDist * invDist * dz;
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77 }
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78 accx *= delT;
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79 accy *= delT;
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80 accz *= delT;
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81 outxyz[globalId + 0] = inxyz[globalId + 0] + (invxyz[globalId + 0] * delT) + (accx * .5f * delT);
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82 outxyz[globalId + 1] = inxyz[globalId + 1] + (invxyz[globalId + 1] * delT) + (accy * .5f * delT);
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83 outxyz[globalId + 2] = inxyz[globalId + 2] + (invxyz[globalId + 2] * delT) + (accz * .5f * delT);
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84 outvxyz[globalId + 0] = invxyz[globalId + 0] + accx;
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85 outvxyz[globalId + 1] = invxyz[globalId + 1] + accy;
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86 outvxyz[globalId + 2] = invxyz[globalId + 2] + accz;
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87 }
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88
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89 @Override
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90 public void runTest() {
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91 System.arraycopy(seedxyz, 0, inxyz, 0, seedxyz.length);
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92 Arrays.fill(outxyz, 0f);
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93 Arrays.fill(outvxyz, 0f);
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94 Arrays.fill(invxyz, 0f);
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95 dispatchMethodKernel(bodies, inxyz, outxyz, invxyz, outvxyz);
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96 }
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97
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98 @Test
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99 public void test() {
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100 testGeneratedHsail();
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101 }
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102 }