| Index: chrome/test/data/dromaeo/tests/sunspider-access-nbody.html
|
| ===================================================================
|
| --- chrome/test/data/dromaeo/tests/sunspider-access-nbody.html (revision 0)
|
| +++ chrome/test/data/dromaeo/tests/sunspider-access-nbody.html (revision 0)
|
| @@ -0,0 +1,181 @@
|
| +<html>
|
| +<head>
|
| +<script src="../htmlrunner.js"></script>
|
| +<script>
|
| +/* The Great Computer Language Shootout
|
| + http://shootout.alioth.debian.org/
|
| + contributed by Isaac Gouy */
|
| +
|
| +var PI = 3.141592653589793;
|
| +var SOLAR_MASS = 4 * PI * PI;
|
| +var DAYS_PER_YEAR = 365.24;
|
| +
|
| +function Body(x,y,z,vx,vy,vz,mass){
|
| + this.x = x;
|
| + this.y = y;
|
| + this.z = z;
|
| + this.vx = vx;
|
| + this.vy = vy;
|
| + this.vz = vz;
|
| + this.mass = mass;
|
| +}
|
| +
|
| +Body.prototype.offsetMomentum = function(px,py,pz) {
|
| + this.vx = -px / SOLAR_MASS;
|
| + this.vy = -py / SOLAR_MASS;
|
| + this.vz = -pz / SOLAR_MASS;
|
| + return this;
|
| +}
|
| +
|
| +function Jupiter(){
|
| + return new Body(
|
| + 4.84143144246472090e+00,
|
| + -1.16032004402742839e+00,
|
| + -1.03622044471123109e-01,
|
| + 1.66007664274403694e-03 * DAYS_PER_YEAR,
|
| + 7.69901118419740425e-03 * DAYS_PER_YEAR,
|
| + -6.90460016972063023e-05 * DAYS_PER_YEAR,
|
| + 9.54791938424326609e-04 * SOLAR_MASS
|
| + );
|
| +}
|
| +
|
| +function Saturn(){
|
| + return new Body(
|
| + 8.34336671824457987e+00,
|
| + 4.12479856412430479e+00,
|
| + -4.03523417114321381e-01,
|
| + -2.76742510726862411e-03 * DAYS_PER_YEAR,
|
| + 4.99852801234917238e-03 * DAYS_PER_YEAR,
|
| + 2.30417297573763929e-05 * DAYS_PER_YEAR,
|
| + 2.85885980666130812e-04 * SOLAR_MASS
|
| + );
|
| +}
|
| +
|
| +function Uranus(){
|
| + return new Body(
|
| + 1.28943695621391310e+01,
|
| + -1.51111514016986312e+01,
|
| + -2.23307578892655734e-01,
|
| + 2.96460137564761618e-03 * DAYS_PER_YEAR,
|
| + 2.37847173959480950e-03 * DAYS_PER_YEAR,
|
| + -2.96589568540237556e-05 * DAYS_PER_YEAR,
|
| + 4.36624404335156298e-05 * SOLAR_MASS
|
| + );
|
| +}
|
| +
|
| +function Neptune(){
|
| + return new Body(
|
| + 1.53796971148509165e+01,
|
| + -2.59193146099879641e+01,
|
| + 1.79258772950371181e-01,
|
| + 2.68067772490389322e-03 * DAYS_PER_YEAR,
|
| + 1.62824170038242295e-03 * DAYS_PER_YEAR,
|
| + -9.51592254519715870e-05 * DAYS_PER_YEAR,
|
| + 5.15138902046611451e-05 * SOLAR_MASS
|
| + );
|
| +}
|
| +
|
| +function Sun(){
|
| + return new Body(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, SOLAR_MASS);
|
| +}
|
| +
|
| +
|
| +function NBodySystem(bodies){
|
| + this.bodies = bodies;
|
| + var px = 0.0;
|
| + var py = 0.0;
|
| + var pz = 0.0;
|
| + var size = this.bodies.length;
|
| + for (var i=0; i<size; i++){
|
| + var b = this.bodies[i];
|
| + var m = b.mass;
|
| + px += b.vx * m;
|
| + py += b.vy * m;
|
| + pz += b.vz * m;
|
| + }
|
| + this.bodies[0].offsetMomentum(px,py,pz);
|
| +}
|
| +
|
| +NBodySystem.prototype.advance = function(dt){
|
| + var dx, dy, dz, distance, mag;
|
| + var size = this.bodies.length;
|
| +
|
| + for (var i=0; i<size; i++) {
|
| + var bodyi = this.bodies[i];
|
| + for (var j=i+1; j<size; j++) {
|
| + var bodyj = this.bodies[j];
|
| + dx = bodyi.x - bodyj.x;
|
| + dy = bodyi.y - bodyj.y;
|
| + dz = bodyi.z - bodyj.z;
|
| +
|
| + distance = Math.sqrt(dx*dx + dy*dy + dz*dz);
|
| + mag = dt / (distance * distance * distance);
|
| +
|
| + bodyi.vx -= dx * bodyj.mass * mag;
|
| + bodyi.vy -= dy * bodyj.mass * mag;
|
| + bodyi.vz -= dz * bodyj.mass * mag;
|
| +
|
| + bodyj.vx += dx * bodyi.mass * mag;
|
| + bodyj.vy += dy * bodyi.mass * mag;
|
| + bodyj.vz += dz * bodyi.mass * mag;
|
| + }
|
| + }
|
| +
|
| + for (var i=0; i<size; i++) {
|
| + var body = this.bodies[i];
|
| + body.x += dt * body.vx;
|
| + body.y += dt * body.vy;
|
| + body.z += dt * body.vz;
|
| + }
|
| +}
|
| +
|
| +NBodySystem.prototype.energy = function(){
|
| + var dx, dy, dz, distance;
|
| + var e = 0.0;
|
| + var size = this.bodies.length;
|
| +
|
| + for (var i=0; i<size; i++) {
|
| + var bodyi = this.bodies[i];
|
| +
|
| + e += 0.5 * bodyi.mass *
|
| + ( bodyi.vx * bodyi.vx
|
| + + bodyi.vy * bodyi.vy
|
| + + bodyi.vz * bodyi.vz );
|
| +
|
| + for (var j=i+1; j<size; j++) {
|
| + var bodyj = this.bodies[j];
|
| + dx = bodyi.x - bodyj.x;
|
| + dy = bodyi.y - bodyj.y;
|
| + dz = bodyi.z - bodyj.z;
|
| +
|
| + distance = Math.sqrt(dx*dx + dy*dy + dz*dz);
|
| + e -= (bodyi.mass * bodyj.mass) / distance;
|
| + }
|
| + }
|
| + return e;
|
| +}
|
| +
|
| +window.onload = function(){ startTest("sunspider-access-nbody", '');
|
| +
|
| +var ret;
|
| +
|
| +test( "N-Body", function(){
|
| + for ( var n = 3; n <= 6; n *= 2 ) {
|
| + var bodies = new NBodySystem( Array(
|
| + Sun(),Jupiter(),Saturn(),Uranus(),Neptune()
|
| + ));
|
| + var max = n * 100;
|
| +
|
| + ret = bodies.energy();
|
| + for (var i=0; i<max; i++){
|
| + bodies.advance(0.01);
|
| + }
|
| + ret = bodies.energy();
|
| + }
|
| +});
|
| +
|
| +endTest(); };
|
| +</script>
|
| +</head>
|
| +<body></body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 269054:
Importing dromaeo performance tests to src/chrome/test/data.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/