some parallel make questions

[Yossi Itzkovich]

Hi,

I have few questions regarding parallel (and sub-make)  make:

1. Is the calculation of -l (load) is per user/session/station ?  
        For examle: If I launch on the same makefile, two make session  at the
same time, on the same machine - but with different targets (unrelated ones) -
what will be the -l (in both sessions) for ? If, for example, I give both
session -l 2, will they both be -l 4, or still -l 2, which means that they will
both "share" the load.?  and what about two users ?  same user on different
machines (on same makefile) ?

2. I have a Makefile.system  that launches many recursive sub-makes.  Among its
targets are clean,compile,build.
  I thought of doing something like:

build:  clean  compile

clean:
        ....

compile:
        ....

If things are done serialy - then when invoking "make build"  it will invoke
clean and then compile.  But what will be the results with parallel make ?


Thanks
Yossi