dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Thu, May 08, 2008 at 09:44:13PM +0200, Johannes Ring wrote:
> On Thu, May 8, 2008 Anders Logg wrote:
> > When running scons in DOLFIN, it always takes a while to get through
> > the step
> >
> >   Resolving compiler...
> >
> > What does this step do, and can we speed it up, for example by caching
> > the value from a previous run?
> 
> The resolve compiler step runs a test for every external dependency
> package to make sure that the selected compiler can be used by each of
> them. If a test fails for package foo, then this package will be discarded
> unless it specifies a compiler (like PETSc). In that case, this compiler
> will be tested on all the other external dependencies and if all the tests
> passes, that compiler will be used and foo will not be discarded.
> 
> On my laptop, the resolve compiler step takes about 2 seconds. I think it
> will be quite hard to speed this up significantly.

ok.

> Perhaps we instead
> could add an option to disable this step when we know that the selected
> compiler will work for all external dependencies that are enabled?

That would be good. I type scons many times when I work on the code so
then saving 2 seconds would be good... :-)

-- 
Anders