tree 3da557e8d16a9644f596b6144cac5b98a5e733b5
parent c426f464ab0b2045fb8a8ca3b71b9cb14c2e6545
author Mike Vitus <vitus@google.com> 1516837999 -0800
committer Mike Vitus <vitus@google.com> 1518819857 -0800

Adds a ParallelFor wrapper for tbb::parallel_for.

This is in preparation for adding support for a c++11 based parallel
for implementation. The parallel for abstraction does not have the
ability to constrain the total number of threads in nested for loops.
This is solved by distributing the number of threads evenly between
the nested for loops. Adds a TODO to consolidate the next for loops
into a single loop that can be properly split between threads.

Tested by building with TBB and running tests.

Change-Id: I546973b9a4d19b9cdd53caff55d1c80bac8ea953