Poorman parallelization of website rendering with phantomjs

parellized_render.rb

urls = []

urls.push('www.website1.fr')
# ...
urls.push('www.websiteXXX.fr')

jobs = []
total_jobs = 8

# Split jobs
urls.each_index do |i|
    current_job = (i / (urls.size / total_jobs)).floor
    jobs[current_job] = [] if jobs.size == current_job 
    jobs[current_job].push urls[i]
end

jobs.each do |domains|
    cmd = 'phantomjs render.js '+domains.join('; phantomjs render.js ')
    puts cmd
    fork do
        exec cmd
    end
end

render.js

/**
 * Renders on page
 */

var page = require('webpage').create(),
    address, output, size;

if (phantom.args.length < 1 || phantom.args.length > 2) {
    console.log('Usage: rasterize.js domain');
    phantom.exit();
} else {
    domain = phantom.args[0];
    page.viewportSize = { width: 940, height: 2000 };
    page.open('http://'+domain, function (status) {
        if (status !== 'success') {
            console.log('Unable to load the address!');
        } else {
            window.setTimeout(function () { // let's gmap tiles some time to load

                // Retrieve content height to adjust the height of the screenshot
                page.clipRect = {
                    top: 0, left: 0, width: 940, 
                    height: page.evaluate(function () {
                        return YAHOO.util.Dom.getRegion('content').height + 100;
                    })
                };

                page.render('/home/arnaud/Bureau/websites/'+domain+'.jpg');
                phantom.exit();
            }, 2000);
        }
    });
}