Re: [Openexr-devel] Thread safety

[Paul Miller]

On 4/3/2013 11:17 AM, Christopher Horvath wrote:
> I have seen astonishing performance from the TBB library, but it is not
> part of a standard, and it is controlled entirely by Intel, which makes
> it a risky choice for the default implementation.  However, OpenVDB
> depends entirely upon it, so there is a precedent. OpenMP is natively
> supported in both C and C++, and is implemented across a large number of
> compilers by way of compiler directives.  It is a more restrictive
> standard, and has a lot of limitations. Plus, it's existence in #pragma
> form seems kludgy to me.

I've found OpenMP and TBB to be roughly equivalent, at least when MPing 
loops. OpenMP is nice because you can build with/without it very easily, 
without touching the code/pragmas, and it allows code to build on 
systems without it without any changes either.

As for performance, have you found otherwise?