[Users] Meeting Minutes

Frank Löffler knarf at cct.lsu.edu
Tue Mar 25 10:03:44 CDT 2014

On Tue, Mar 25, 2014 at 10:58:31AM -0400, Erik Schnetter wrote:
> I think we want to move away from building external libraries as part
> of the Cactus build; instead, we want to build them ahead of time,
> e.g. via Simfactory. This has several advantages, such as e.g. that a
> "make clean" doesn't require rebuilding the libraries, and that
> several Cactus configurations can use the same external libraries, and
> that one can even have one power user build the libraries on a system
> while all others simply use them.

I think this is a good idea.

> I know this because I implemented this in Simfactory3, and I
> definitively think this is the way to go. The current build recipes
> use Clang (not gcc, and not the system's "standard" compiler) for
> building. I did this because I was interested in C++11, and most
> system compilers (Intel, PGI, older versions of GCC, current Nvidia)
> don't support this. However, in the interest of backward compatibility
> we should probably also provide build recipes for (say) an older
> version of GCC that is supported by all compilers.

We probably would need that, and I myself would want that too. gcc is a
pseudo-standard we have to support.


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