Is there anything we can do for cross-platform parallel processing?

I've got some large arrays I want to process in parallel, and doing so with coroutines works for the JVM, but both JS and Native don't work.

So what options do I have to make this work everywhere?

Currently I'm doing something similar to:

launch(Dispatchers.Default) {
    for(split up the input) {
        coroutineScope {
            launch(Dispatchers.Default) {
                   // Do some processing
            }
        }
    }
}