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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>GPU.JS! : CUDA for the browser, in JS</title>
<link href="bootstrap.min.css" rel="stylesheet">
<script src="jquery.js"></script>
<script src="bootstrap.min.js"></script>
<!-- gpu.js scripts -->
<script src="../bin/gpu.js"></script>
<script src="gpu-demo.js"></script>
<!-- JS Highlight code -->
<link rel="stylesheet" href="./highlight/styles/default.css">
<script src="./highlight//highlight.pack.js"></script>
<script>$(function() { hljs.initHighlightingOnLoad(); } );</script>
</head>
<body>
<div class="container">
<div class="page-header">
<h1>GPU.js! <small>CUDA for the Browser</small></h1>
</div>
<h2>Argument startup Initialiser</h2>
<pre><code class="javascript">//
// Argument Startup code
//
var _length = 2048;
var set_a = [];
var set_b = [];
for(var n = 0; n < _length; n++) {
var randA = Math.random()*100.0;
var randB = Math.random()*100.0;
set_a.push(randA);
set_b.push(randB);
}</code></pre>
<h2>GPU.JS benchmarkCode</h2>
<pre><code class="javascript">//
// GPU.JS setup code
//
// mode = "auto" / "gpu" / "cpu".
// For automatic detection, GPU only mode, or CPU only mode
//
function benchmarkCode(mode) {
var runFunction = GPU(function(a, b) {
var res = 0.0;
var i = 0.0;
for(i = 0.0; i < 500000; ++i) {
res += Math.sqrt( a[this.thread.x] * b[this.thread.x] );
}
return res;
}, {
dimensions : [2048],
mode : mode
});
// Execute the compiled GPU.JS script
c = runFunction(set_a, set_b);
}</code></pre>
<h2>GPU.JS benchmark run</h2>
<pre><code class="javascript">bench(function(){
setupBenchCode('gpu');
}, 10, [], this);</code></pre>
<div class="result">
<div class="cpu_result_gpu alert alert-warning" role="alert">GPU: Click Run!</div>
</div>
<h2>GPU.JS (CPU fallback) benchmark run</h2>
<pre><code class="javascript">bench(function(){
setupBenchCode('cpu');
}, 10, [], this);</code></pre>
<div class="result">
<div class="cpu_result_cpu alert alert-warning" role="alert">CPU: Click Run!</div>
</div>
<div class="result">
<div class="cpu_result_ovl alert alert-warning" role="alert">Percentage Gain: Click Run!</div>
</div>
<script>
</script>
<button class="run_btn btn btn-default" onclick="runBenchmark();">Run!</button>
</div>
</body>
</html>