Mercurial > hg > graal-compiler
view graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/StaticNBodySpillTest.java @ 14607:7573ba6dfba2
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author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Tue, 18 Mar 2014 15:32:56 -0700 |
parents | 1fdecc36c8ac |
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/* * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.compiler.hsail.test; import java.util.*; import org.junit.*; import com.oracle.graal.compiler.hsail.test.infra.*; /** * This version of NBody causes Graal to generate register spilling code. */ public class StaticNBodySpillTest extends GraalKernelTester { static final int bodies = 5; static final float delT = .005f; static final float espSqr = 1.0f; static final float mass = 5f; static final int width = 768; static final int height = 768; // Positions xy and z of bodies. @Result private float[] inxyz = new float[bodies * 3]; // Positions xy and z of bodies. @Result private float[] outxyz = new float[bodies * 3]; // positions xy and z of bodies // Velocity component of x,y and z of bodies. @Result private float[] invxyz = new float[bodies * 3]; @Result private float[] outvxyz = new float[bodies * 3]; static float[] seedxyz = new float[bodies * 3]; static { final float maxDist = width / 4; for (int body = 0; body < (bodies * 3); body += 3) { final float theta = (float) (Math.random() * Math.PI * 2); final float phi = (float) (Math.random() * Math.PI * 2); final float radius = (float) (Math.random() * maxDist); seedxyz[body + 0] = (float) (radius * Math.cos(theta) * Math.sin(phi)) + width / 2; seedxyz[body + 1] = (float) (radius * Math.sin(theta) * Math.sin(phi)) + height / 2; seedxyz[body + 2] = (float) (radius * Math.cos(phi)); } } public static void run(float[] inxyz, float[] outxyz, float[] invxyz, float[] outvxyz, int gid) { final int count = bodies * 3; final int globalId = gid * 3; float accx = 0.f; float accy = 0.f; float accz = 0.f; for (int i = 0; i < count; i += 3) { final float dx = inxyz[i + 0] - inxyz[globalId + 0]; final float dy = inxyz[i + 1] - inxyz[globalId + 1]; final float dz = inxyz[i + 2] - inxyz[globalId + 2]; final float invDist = (float) (1.0 / (Math.sqrt((dx * dx) + (dy * dy) + (dz * dz) + espSqr))); accx += mass * invDist * invDist * invDist * dx; accy += mass * invDist * invDist * invDist * dy; accz += mass * invDist * invDist * invDist * dz; } accx *= delT; accy *= delT; accz *= delT; outxyz[globalId + 0] = inxyz[globalId + 0] + (invxyz[globalId + 0] * delT) + (accx * .5f * delT); outxyz[globalId + 1] = inxyz[globalId + 1] + (invxyz[globalId + 1] * delT) + (accy * .5f * delT); outxyz[globalId + 2] = inxyz[globalId + 2] + (invxyz[globalId + 2] * delT) + (accz * .5f * delT); outvxyz[globalId + 0] = invxyz[globalId + 0] + accx; outvxyz[globalId + 1] = invxyz[globalId + 1] + accy; outvxyz[globalId + 2] = invxyz[globalId + 2] + accz; } @Override public void runTest() { System.arraycopy(seedxyz, 0, inxyz, 0, seedxyz.length); Arrays.fill(outxyz, 0f); Arrays.fill(outvxyz, 0f); Arrays.fill(invxyz, 0f); dispatchMethodKernel(bodies, inxyz, outxyz, invxyz, outvxyz); } @Test public void test() { testGeneratedHsail(); } }