‹Programming› 2018
Mon 9 - Thu 12 April 2018 Nice, France
Mon 9 Apr 2018 11:00 - 11:30 at Baie des Anges B - MoreVMs 2

Task granularity, i.e., the amount of work performed by parallel tasks, is a key performance attribute of parallel applications. On the one hand, fine-grained tasks (i.e., small tasks carrying out few computations) may introduce considerable parallelization overheads. On the other hand, coarse-grained tasks (i.e., large tasks performing substantial computations) may not fully utilize the available CPU cores, resulting in missed parallelization opportunities. We focus on task-parallel applications running in a single Java Virtual Machine on a shared-memory multicore. Despite their performance may considerably depend on the granularity of their tasks, related analyses and optimizations have received little attention in the literature. In this paper, we advocate the need for providing a better understanding of task granularity for such applications. We discuss the importance of improving our knowledge on this topic, and highlight the related challenges. We present new approaches to profile, analyze and optimize task granularity, and discuss the results obtained so far.

Mon 9 Apr
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11:00 - 12:30: MoreVMs 2MoreVMs at Baie des Anges B
11:00 - 11:30
Talk
MoreVMs
Andrea RosàUniversity of Lugano, Switzerland, Eduardo RosalesUniversity of Lugano, Switzerland, Filippo SchiavioUniversità della Svizzera italiana, Walter BinderUniversity of Lugano, Switzerland
File Attached
11:30 - 12:00
Talk
MoreVMs
Alireza S. AbyanehUniversity of Salzburg, Simon BauerUniversity of Salzburg, Christoph KirschUniversity of Salzburg, Philipp MayerUniversity of Salzburg, Christian MöslUniversity of Salzburg, Clément PonceletUniversity of Salzburg, Sara SeidlUniversity of Salzburg, Ana SokolovaUniversity of Salzburg, Manuel WidmoserUniversity of Salzburg
File Attached
12:00 - 12:30
Talk
MoreVMs
Andy WingoIgalia, S.L.
Pre-print File Attached