> > with gcc will use OpenCL but I believe that a DT built with clang
> > will not. OpenCL is used by DT for some on-CPU computations, with
> > a fallback to slower code if OpenCL is not available. In my own
> > tests on Fedora 23, this caused a clearly visible slowdown in a
> > clang-compiled DT than on a gcc-compiled one.
>
> You seem to be confusing OpenCL with OpenMP here. The first is the
> GPU library and not influenced by compiler used while the latter was
> already tested by the ldd call.
Yes, sorry; OpenMP is what I meant. I should have poked my memory
harder before sending the email.
(I knew it was 'Open<something>', but got the something wrong.)
- cks
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