[Octave-bug-tracker] [bug #42915] number of jobs when pkg runs make

[Carnë Draug]

URL:
  <http://savannah.gnu.org/bugs/?42915>

                 Summary: number of jobs when pkg runs make
                 Project: GNU Octave
            Submitted by: carandraug
            Submitted on: Tue 05 Aug 2014 13:22:49 GMT
                Category: Octave Function
                Severity: 1 - Wish
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
             Assigned to: carandraug
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

    _______________________________________________________

Details:

This is just a feature request, a nice idea from `serviscopeMinor` on the IRC.
 I could implement it, seems easy enough, but would like some discussion about
it.

The problem is that pkg install can take a long time to install some packages
because `make` runs with only one job at a time. We could have a massive
improvements if it used all cores, but what should be used as default?

In Linux, we could use `nproc` but that wouldn't allow configuration. What
about checking the value of an environment variable such as OMP_NUM_THREADS ?
And if this is not defined, should we default to 1 or check nproc? Googling
for a bit sounds like NUMBER_OF_PROCESSORS is the variable name to use on
windows. Does anyone knows anything about Mac?




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?42915>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/