!!!

on a pass en numpy

!!! bien vrifier !!!



mpirun -np 2 python ../old.ptreelib/test2.py		ok



SetParticles : ok
BuildTree    : ok
Potential    : ok
Acceleration : ok



AllPotential 	: ?
AllAcceleration : ?
AllDensity      : ?

-> extraire 


GetAllPotential 
GetAllAcceleration
GetAllDensity     
