Mercurial > hg > truffle
view graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/lambda/VecmathNBodyDeoptTest.java @ 15846:399aa56c6366
HSAIL: fix for -UseHSAILDeoptimization
Contributed-by: Eric Caspole <eric.caspole@amd.com>
author | twisti |
---|---|
date | Thu, 22 May 2014 13:19:47 +0200 |
parents | 2208a130d636 |
children | c88ab4f1f04a |
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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.lambda; import java.util.*; import org.junit.*; import com.oracle.graal.compiler.hsail.test.infra.GraalKernelTester; import javax.vecmath.*; /** * Tests NBody algorithm using the javax.vecmath package (all objects non-escaping). */ public class VecmathNBodyDeoptTest extends GraalKernelTester { static final int bodies = 1024; 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; static class Body extends Vector3f { /** * */ private static final long serialVersionUID = 1L; public Body(float _x, float _y, float _z, float _m) { super(_x, _y, _z); m = _m; v = new Vector3f(0, 0, 0); } float m; Vector3f v; public float getM() { return m; } public Vector3f computeAcc(Body[] in_bodies, float espSqr1, float delT1) { Vector3f acc = new Vector3f(); for (Body b : in_bodies) { Vector3f d = new Vector3f(); d.sub(b, this); float invDist = 1.0f / (float) Math.sqrt(d.lengthSquared() + espSqr1); float s = b.getM() * invDist * invDist * invDist; acc.scaleAdd(s, d, acc); } // now return acc scaled by delT acc.scale(delT1); return acc; } } @Result Body[] in_bodies = new Body[bodies]; @Result Body[] out_bodies = new Body[bodies]; static Body[] seed_bodies = new Body[bodies]; static { java.util.Random randgen = new Random(0); final float maxDist = width / 4; for (int body = 0; body < bodies; body++) { final float theta = (float) (randgen.nextFloat() * Math.PI * 2); final float phi = (float) (randgen.nextFloat() * Math.PI * 2); final float radius = randgen.nextFloat() * maxDist; float x = (float) (radius * Math.cos(theta) * Math.sin(phi)) + width / 2; float y = (float) (radius * Math.sin(theta) * Math.sin(phi)) + height / 2; float z = (float) (radius * Math.cos(phi)); seed_bodies[body] = new Body(x, y, z, mass); } } @Override public void runTest() { System.arraycopy(seed_bodies, 0, in_bodies, 0, seed_bodies.length); for (int b = 0; b < bodies; b++) { out_bodies[b] = new Body(0, 0, 0, mass); } // no local copies of arrays so we make it an instance lambda dispatchLambdaKernel(bodies, (gid) -> { Body inb = in_bodies[gid]; Body outb = out_bodies[gid]; Vector3f acc = inb.computeAcc(in_bodies, espSqr, delT); Vector3f tmpPos = new Vector3f(); tmpPos.scaleAdd(delT, inb.v, inb); if (gid == bodies / 2) { tmpPos.x += forceDeopt(gid); } tmpPos.scaleAdd(0.5f * delT, acc, tmpPos); outb.set(tmpPos); outb.v.add(inb.v, acc); }); } @Override protected boolean supportsRequiredCapabilities() { return (canHandleDeoptVirtualObjects() && canDeoptimize()); } @Test public void test() { testGeneratedHsail(); } @Test public void testUsingLambdaMethod() { testGeneratedHsailUsingLambdaMethod(); } }