[lsst-dm-stack-users] stack build can be *very* memory hungry -- default to fewer NCORES?

[Kian-Tat Lim]

Dustin,

> On my Mac OSX 10.8 laptop with 4 cores and 8 GB of memory, the machine 
> becomes nearly unusable during the afw build.  I would think this would be 
> a fairly standard target machine for our users, so I would suggest that we 
> might want to highlight (and fix the errors in) the description of how to 
> make the build use fewer cores.  Or perhaps just crank down the default to 
> not fully max out the number of cores.

	From a relatively recent HipChat discussion with Simon (should
move to Confluence Questions):

| I'm trying to install via eups distrib install.  How do I turn down
| the number of jobs run simultaneously?

| Unfortunately, I think Mario decided not to let you easily override
| that one.  It's the NJOBS variable in eupspkg.sh that you need to
| change.  I think you may be able to set EUPSPKG_SCRIPTS to point to a
| .sh file that just sets that variable.

-- 
Kian-Tat Lim, LSST Data Management, ktl at slac.stanford.edu