Re: [boost] GSoC Ideas: Optimizing Boost libraries for multi-core

From: Cristianno Martins (cristiannomartins_at_[hidden])
Date: 2008-04-02 16:50:40

Hello again,

first of all, thank you for comments.

That is certainly an interesting project. When you submit your GSoC
> application, please identify exactly which library you plan to
> parallelize with OpenMP, and which parts of that library you will
> parallelize.
>
>         - Doug

Well, I enumerated three libraries that I could parallelize with OpenMP in
the project. Therefore, I did't specify how I'd parallelize them, because
(in the project) one of the tasks to be done after choose a library is to
identify the bottlenecks. So, I thought I should do this at that moment.
Furthermore, if I have opportunity to parallelize more than three libraries,
it'll be necessary to do this step for the others libraries; so, why mustn't
I do it for all of them?

> Just a quick question. Wouldn't be TBB the better choice instead of
> > OpenMP?
>
>
> I can see good reasons for both options. TBB will make it easier to
> implement task-oriented parallel algorithms, but it brings with it a
> dependency on a non-Boost library. OpenMP is reasonably good at data
> parallelism (and can require fewer changes to algorithms where it
> applies), and depends on features available in many compilers, but it
> isn't as widely applicable as TBB. I think you choice will be dictated
> mainly by the library you choose, and how you think you will need to
> parallelize that library.
>
>         - Doug
>

The use of TBB is a really good idea, so I could parallelize each chosen
library in Boost with the best library to that case (between OpenMP and
TBB). What do you think about it?

Best,

--
Cristianno Martins
Mastering in Computer Science
State University of Campinas
cristianno.martins_at_[hidden]
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