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Add rust n-body version for comparison (#88)

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This commit is contained in:
Max Graey
2018-05-03 03:12:03 +03:00
committed by Daniel Wirtz
parent 99bde3a5fa
commit 061976ee0c
9 changed files with 275 additions and 26 deletions
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49
examples/n-body/tests/index.js
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@ -1,15 +1,17 @@
const fs = require("fs");
// Load WASM version
const nbodyWASM = require("../index.js");
const nbodyAS = require("../assembly/index.js");
const nbodyRS = require("../rust/index.js");
// Load ASMJS version
src = fs.readFileSync(__dirname + "/../build/index.asm.js", "utf8");
var src = fs.readFileSync(__dirname + "/../build/index.asm.js", "utf8");
if (src.indexOf("var Math_sqrt =") < 0) { // currently missing in asm.js output
let p = src.indexOf(" var abort = env.abort;");
src = src.substring(0, p) + " var Math_sqrt = global.Math.sqrt;\n " + src.substring(p);
}
var nbodyASMJS = eval("0," + src)({
const nbodyAsmJS = eval("0," + src)({
Int8Array,
Int16Array,
Int32Array,
@ -20,17 +22,20 @@ var nbodyASMJS = eval("0," + src)({
Float64Array,
Math
}, {
abort: function() { throw Error(); }
abort: () => { throw Error(); }
}, new ArrayBuffer(0x10000));
// Load JS version
var src = fs.readFileSync(__dirname + "/../build/index.js", "utf8");
var scopeJS = {
require: function() {},
exports: {},
unchecked: function(expr) { return expr }
src = fs.readFileSync(__dirname + "/../build/index.js", "utf8");
const scopeJS = {
require: () => {},
exports: {},
unchecked: expr => expr
};
var nbodyJS = new Function(...Object.keys(scopeJS).concat(src + "\nreturn exports"))(...Object.values(scopeJS));
const nbodyJS = new Function(
...Object.keys(scopeJS).concat(src + "\nreturn exports"))(...Object.values(scopeJS)
);
function test(nbody, steps) {
nbody.init();
@ -42,28 +47,36 @@ function test(nbody, steps) {
var steps = process.argv.length > 2 ? parseInt(process.argv[2], 10) : 20000000;
var time;
console.log("Performing " + steps + " steps (WASM) ...");
time = test(nbodyWASM, steps);
console.log("Performing " + steps + " steps (AssemblyScript WASM) ...");
time = test(nbodyAS, steps);
console.log("Took " + (time[0] * 1e3 + time[1] / 1e6) + "ms");
console.log("Performing " + steps + " steps (ASMJS) ...");
time = test(nbodyASMJS, steps);
console.log("Performing " + steps + " steps (AssemblyScript ASMJS) ...");
time = test(nbodyAsmJS, steps);
console.log("Took " + (time[0] * 1e3 + time[1] / 1e6) + "ms");
console.log("Performing " + steps + " steps (JS) ...");
time = test(nbodyJS, steps);
console.log("Took " + (time[0] * 1e3 + time[1] / 1e6) + "ms");
console.log("Performing " + steps + " steps (Rust WASM) ...");
time = test(nbodyRS, steps);
console.log("Took " + (time[0] * 1e3 + time[1] / 1e6) + "ms");
console.log("\nWARMED UP:\n");
console.log("Performing " + steps + " steps (WASM) ...");
time = test(nbodyWASM, steps);
console.log("Performing " + steps + " steps (AssemblyScript WASM) ...");
time = test(nbodyAS, steps);
console.log("Took " + (time[0] * 1e3 + time[1] / 1e6) + "ms");
console.log("Performing " + steps + " steps (ASMJS) ...");
time = test(nbodyASMJS, steps);
console.log("Performing " + steps + " steps (AssemblyScript ASMJS) ...");
time = test(nbodyAsmJS, steps);
console.log("Took " + (time[0] * 1e3 + time[1] / 1e6) + "ms");
console.log("Performing " + steps + " steps (JS) ...");
time = test(nbodyJS, steps);
console.log("Took " + (time[0] * 1e3 + time[1] / 1e6) + "ms");
console.log("Performing " + steps + " steps (Rust WASM) ...");
time = test(nbodyRS, steps);
console.log("Took " + (time[0] * 1e3 + time[1] / 1e6) + "ms");