talso zero forces and torques, change file mode - sphere - GPU-based 3D discrete element method algorithm with optional fluid coupling
 (HTM) git clone git://src.adamsgaard.dk/sphere
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       ---
 (DIR) commit 413f93381a24090b49beb6933d6c6d38d5a12ce4
 (DIR) parent 082573d044ba28b2f4ca1a4b51fb96e9d11e9bc0
 (HTM) Author: Anders Damsgaard <anders.damsgaard@geo.au.dk>
       Date:   Fri, 26 Feb 2016 00:42:37 +0100
       
       also zero forces and torques, change file mode
       
       Diffstat:
         M python/sigma-sim1-starter.py        |       0 
         M python/sphere.py                    |       2 ++
       
       2 files changed, 2 insertions(+), 0 deletions(-)
       ---
 (DIR) diff --git a/python/sigma-sim1-starter.py b/python/sigma-sim1-starter.py
 (DIR) diff --git a/python/sphere.py b/python/sphere.py
       t@@ -2788,6 +2788,8 @@ class sim:
                when output from one simulation is reused in another simulation.
                '''
        
       +        self.force = numpy.zeros((self.np, self.nd))
       +        self.torque = numpy.zeros((self.np, self.nd))
                self.vel = numpy.zeros(self.np*self.nd, dtype=numpy.float64)\
                        .reshape(self.np, self.nd)
                self.angvel = numpy.zeros(self.np*self.nd, dtype=numpy.float64)\