Intel TBB parallel loop thread id

Question

How do I determine thread id in a TBB parallel loop body?

Essentially what I need is per-thread copies of an object so I thought I'd have those in array indexed by thread id.

I'm looking for the portable TBB way of doing this, not OS native services.

You can create these objects and explicitly pass them to the threads, no need for a lookup by TID. — Ulrich Eckhardt, Feb 05 '16 at 18:18

score 1 · Accepted Answer · answered Feb 05 '16 at 17:18

1

The search term you are looking for is "thread-local storage". Since you are already using TBB, you should probably just use the facilities it provides:

https://www.threadingbuildingblocks.org/docs/help/reference/thread_local_storage.htm

answered Feb 05 '16 at 17:18

Nemo

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great, thanks! enumerable_thread_specific is what I wanted btw tbb::this_tbb_thread::get_id() is what I'd have used if that TLS container wasn't available – lsr Feb 06 '16 at 01:20

Intel TBB parallel loop thread id

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