Handling of O'Mega cache files

[kilian]

Creating the O'Mega cache when a process in a complicated model (NMSSM ...) is run takes quite long. This may be irritating to the unexperienced user.

Two proposals:

• (minor) Issue a message that the cache is being built, be patient

• (major) Move cache generation to the initial build and install cache files in a central location. Advantage: No waiting for the first process, no pollution of user directory. Disadvantage: Build process takes longer (but only if make check is not run).

[Juergen Reuter]

Ranked this to higher priority. We should be able to have a cleaner solution here, and also early testing.

[ohl]

As of r1473, there's a partial solution: O'Mega tries to write the cache files to CACHE_DIR="$localstatedir/cache". There can be problems with write permissions.

[Juergen Reuter]

The rest of the fest should be done relatively quickly (?), ranking this high now.

[ohl]

Implemented in r1564:

make install

will install a small subset of caches (QED, QCD, SM) to allow reasonably quick distchecks.

make -j <number-of-cores+1> install-all-caches

will install caches, but requires a lot of patience.

O'Mega tries to write in

$localstatedir/cache
${HOME}/var/cache
.

(in that order) and it will later try to read in reverse order.

I'm closing the ticket. Please test and open new tickets if you are nor satisfied.

[Juergen Reuter]

Milestone v2.0.0final deleted