Kotlin Coroutines

Moores Law

I am doing this because of this graph Previously there is fork/join for asynchronous but this code is far more complicated than it probably needs to be

    override fun compute(): Long {
        return if (high - low <= SEQUENTIAL_THRESHOLD) {
            (low until high)
                    .map { array[it].toLong() }
                    .sum()
        } else {
            val mid = low + (high - low) / 2
            val left = Sum(array, low, mid)
            val right = Sum(array, mid, high)
            left.fork()
            val rightAns = right.compute()
            val leftAns = left.join()
            leftAns + rightAns
        }
    }

Using the suspend approach is far more easier to read

suspend fun compute(array: IntArray, low: Int, high: Int): Long {

//    println("low: $low, high: $high  on ${Thread.currentThread().name}")

    return if (high - low <= SEQUENTIAL_THRESHOLD) {
        (low until high)
                .map { array[it].toLong() }
                .sum()
    } else {
        val mid = low + (high - low) / 2
        val left = async { compute(array, low, mid) }
        val right = compute(array, mid, high)
        return left.await() + right
    }
}