我想知道async.js是否可以使用多核（线程）。源代码表示否，但也许我只是在误解此注释：
async.parallel：
* **Note:** `parallel` is about kicking-off I/O tasks in parallel, not about
* parallel execution of code. If your tasks do not use any timers or perform
* any I/O, they will actually be executed in series. Any synchronous setup
* sections for each task will happen one after the other. JavaScript remains
* single-threaded.
是否有某种方法可以在多个线程中执行此操作？我有一些可以处理数据库条目的作业，我需要它们始终在所有内核上运行。