Intel® Threading Building Blocks

Graphical examples over the network to different endianness

It is possible to run the graphical examples over the network, e.g., using "ssh -X". However, if client and server use different endianness, the colours look unfamiliar compared to an all-local setup.

If you're familiar with the X Window System, you might consider contributing a solution that uses XImage::byte_order to conditionally swap the bytes returned from get_color() and whatever else is needed to make this problem go away, so I can go read a book instead (I'm getting only partial success so far). :-)

using std::thread, std::mutex, etc. with tbb

Walter D. 于 提交

The tbb documentation says little about compatibility with c++11. There are some tbb features emulating c++11 features, such as threads and mutexes (and even illegally implementing them directly in namespace std), but it's less clear how to operate tbb under c++11. Nowhere does the documentation say whether tbb::thread is identical to std::thread (via typedef or similar) in case of c++11 or not. In particular, I want to know:

Is std::thread::get_id() behaving as expected when used from within a tbb::task (i.e. providing an identifier unique to the running thread)?

mixing Intel MPI and TBB

Hyokun Y. 于 提交

I have been using a mixture of MPICH2 and TBB very successfully:
MPICH2 for machine-to-machine communication and TBB for inter-machine thread management.

Now, I am trying the very same code in the system which uses Intel MPI instead of MPICH2,
and I am observing a very odd behavior; some messages sent with MPI_Ssend is not being received
in the destination, and I am wondering whether it is because Intel MPI and TBB does not work well
together.

The following document

large/huge pages on Windows

Salem D. 于 提交

Hi,
  It seems that that starting from version 4.0 Update 4, TBB supports huge pages on linux.
1) Does anybody know when the support for large pages on Windows will be implemented? 
2) Does anybody have a working patch (not thoroughly tested necessarily) that adds that support to TBB?

Thanks for your time.

parallel_find()

Walter D. 于 提交

TBB does not provide a parallel_find(), which would act similar to std::find(): find the first element in a range meeting a given condition/predicate. I think those who know the tbb library well should be able to implement this as follows: a range is split into a first and second half with the first half searched at higher priority (put on the stack last). If the first child task succeeds (finds a match), the second task is cancelled. This is done recursively, of course.

"Bug" in flow-graph together with termios.h

I wanted to report a "bug" which might appear when using the flow-graph.

In flow_graph.h(and probably all the other impl files) all the fake variadic-templates are being written using arguments B0-BN. The problem is that the old UNIX file termios.h defines B0 as 0. Now, when simply compiling you get a lot of compile errors because the B0 argument in the templates was replaced with 0.

I recognized this when using boost::asio together with the flow-graph.

Basic example:

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