Session 6

Front

What is the equivalent to .start() in the ForkJoin framework?

Back

.fork()

Front

The costs of a task graph are on the edges.

Back

False

Front

What is "Span" in the context of runtime?

Back

The longest dependence-chain

Front

Perfect linear speed-up means...

Back

Doubling processors halves running time

Front

What is the difference between a RecursiveTask and a RecursiveAction?

Back

RecursiveTask returns a value, RecursiveAction doesn't

Front

What is the equivalent to starting the first thread/first run call in the ForkJoin framework? Options: Create a ForkJoinPool and call invoke, .fork() the first Task, Create a ExecutorService and call .invoke on the first task, Create ForkJoinPool(first Task) and call .start()

Back

Create a ForkJoinPool and call invoke

Front

What is the difference between .fork() and invoke()?

Back

invoke waits for the result, fork doesn't