Commit Graph

10 Commits

Author SHA1 Message Date
Daniel J. Hofmann 829b9d96e4 Revert parallelization on algorithms that are used in the server. Let node do this.
This reverts @6b2bf49 on the server algorithms.
2015-09-28 20:26:29 +02:00
Daniel J. Hofmann 9231335eef Use Intel TBB's parallel_sort even for nested parallelism.
TBB has a global task scheduler (that's one of the reason TBB is not
linked statically but dyanmically instead). This allows control over all
running threads, enabling us to use nested parallelism and the scheduler
doing all the task allocation itself.

That is, nested parallel execution such as in

    parallel_for(seq, [](const auto& rng){
      parallel_sort(rng);
    });

is no problem at all, as the scheduler still claims control over the
global environment.

Therefore, use `parallel_sort` Range overload where possible.

References:

- https://www.threadingbuildingblocks.org/docs/help/hh_goto.htm#reference/algorithms.htm
- https://www.threadingbuildingblocks.org/docs/help/hh_goto.htm#reference/algorithms/parallel_sort_func.htm
- https://www.threadingbuildingblocks.org/docs/help/hh_goto.htm#reference/task_scheduler.htm
- https://www.threadingbuildingblocks.org/docs/help/hh_goto.htm#reference/task_scheduler/task_scheduler_init_cls.htm
- https://www.threadingbuildingblocks.org/docs/help/hh_goto.htm#tbb_userguide/Initializing_and_Terminating_the_Library.htm
2015-09-28 20:26:03 +02:00
Patrick Niklaus 5c77bb7c67 Fix inversion of sign 2015-06-17 23:25:16 +02:00
Dennis Luxen b15599f01e simplify logic to compute edge offset 2015-03-27 12:28:01 +01:00
Dennis Luxen 73a2a938b4 use CRTP instead of virtual functions in routing plugins 2015-03-02 11:55:55 +01:00
Dennis Luxen 3bd27ae8c5 change copyright line from personal names to project 2015-02-19 09:19:51 +01:00
Dennis Luxen a1d4798ded refactor AlternativePathRouting step to have the same interface semantics regardless of search direction 2015-02-12 15:03:53 +01:00
Dennis Luxen b20b7e65bf renamed: Util/* -> util/* 2015-01-27 17:47:23 +01:00
Dennis Luxen 1b10f53eff DataStructures/RawRouteData.h -> DataStructures/internal_route_result.hpp, implements #1238 2015-01-06 13:22:12 +01:00
Dennis Luxen 00d3676a20 renamed: RoutingAlgorithms/* routing_algorithms/ 2014-11-28 15:33:41 +01:00