Re: Dynamic adjustments of build dependencies for the number of available processors

[Howard Chu]

SF Markus Elfring wrote:
> > It seems like you want to automatically expand or contract the
> > number of jobs that make will run in parallel,
>
> Yes, exactly.
>
> I can not use the parameter "-j" directly for the start of the main
> make process in my case so far.
>
>
> > based on some processing of the recipe.
>
> One of the variables (or make rules) will call the command
> "getconf _NPROCESSORS_ONLN".
>
> The corresponding processes should be efficiently started for
> parallel background execution after a serial data preparation
> was finished.

This makes very little sense. In a properly written Makefile, your 
serial preparation step will remain serial no matter what "-j" arguments 
are used, so it should be safe to just invoke "make -j xx" at the 
beginning and let things run serially or in parallel as necessary.

--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/