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Make HPX aware of hyper-threading #526

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brycelelbach opened this issue Sep 15, 2012 · 3 comments
Closed

Make HPX aware of hyper-threading #526

brycelelbach opened this issue Sep 15, 2012 · 3 comments
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category: threadmanager type: enhancement
Milestone
0.9.6

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@brycelelbach
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HPX should be aware of hyper-threads, so that this information can be used to drive topology-related decisions.
@hkaiser
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hkaiser commented Sep 15, 2012

We should be able to use hwloc to retrieve this information

@brycelelbach
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I don't believe this is needed for 0.9.5

sithhell pushed a commit that referenced this issue Jan 30, 2013
Work on hwloc thread pinning
0a12692 
Fixing affinity masks. This is related to #473, #526 and #529
sithhell added a commit that referenced this issue Jan 30, 2013
@sithhell
More hwloc thread pinning fixes
3b62a17 
This fixes issues #473, #526 and #529
@sithhell
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HPX is now fully aware of hyperthread and is able to pin the threads correctly. At the moment the threads are placed on the physical cores of a numa domain until it is full (including the logical hyperthread cores).

In order to gain more control, an easy to use command line option should be implemented (See #685)

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category: threadmanager type: enhancement
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0.9.6
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@sithhell @brycelelbach @hkaiser