[yt-dev] conda and external libraries

[Nathan Goldbaum]

Hi Jeff,

Can you paste the error messages you're seeing?

Nathan

On Tuesday, October 22, 2013, j s oishi wrote:

> Hi all,
>
> So I've been playing with the new conda installed yt. In principle, I
> really like the idea: a simple, completely isolated python distribution
> that does dependency management. However, I'm running into some problems
> that are potentially big problems for yt down the road. My issue is that
> I'm trying to install Dedalus into the yt-provided conda install. However,
> to do that, I need to interface with external libraries--ones that I do
> *not* want to have built as conda packages. The two that come up first are
> MPI and FFTW. Since the Dedalus FFTW bindings are actually used in yt for
> its FFT analysis, this is relevant for yt too.
>
> On a supercomputing center, one would very much want to use their MPI and
> FFT libraries, rather than some binary blob from conda, I think we need to
> figure out how to do this. The problem I'm getting specifically is that if
> I build FFTW (for example) myself, I want to link against the system libm.
> But conda provides its OWN libm, which, it turns out is not GLIBC
> compatible with what FFTW was built against. I believe this is because libm
> from conda was not built against the same glibc as my libm, which FFTW was
> built against. I don't know how to solve this problem, since I don't really
> understand dynamic libraries, nor conda. Does anyone have any ideas about
> this? Is this something I should take up with the conda list?
>
> My apologies if this is unclear. I am not fully sure I understand what is
> happening myself.
>
> thanks,
>
> j
>
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