Paralell collections in Scala
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This document discusses parallel collections in Scala 2.9. It mentions that Scala provides parallel versions of common collection types like arrays, ranges, hash maps, hash sets, vectors and tries. It also discusses concepts like embarrassingly parallel, fork/join, work stealing and double-ended queues. The document provides links to documentation on parallel collections and includes a REPL demo link for examples.
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Paralell collections in Scala
- 1. Parallel collections i Scala 2.9 Alf Kristian Støyle Know IT Objectnet
- 5. Fork/Join
- 7. Double-ended queue - deque
- 8. Double-ended queue - deque
- 9. Double-ended queue - deque
- 10. val persons: List[Person] = ... val (kids, adults) = persons.partition(_.age < 18)
- 11. val paralellList = List(1, 2, 3).par
- 12. val paralellList = List(1, 2, 3).par val sequentialList = paralellList.seq
- 13. • parallel arrays - scala.collection.parallel.mutable.ParArray • parallel ranges - scala.collection.parallel.immutable.ParRange • parallel hash maps - scala.collection.parallel.mutable.ParHashMap • parallel hash sets - scala.collection.parallel.mutable.ParHashSet • parallel hash tries - scala.collection.parallel.immutable.{ParHashMap, ParHashSet} • parallel vectors - scala.collection.parallel.immutable.ParVector http://www.scala-lang.org/node/8976
- 15. Q &A