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	tAdded shear-test - sphere - GPU-based 3D discrete element method algorithm wit…
	git clone git://src.adamsgaard.dk/sphere
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	---
	commit 3c4f2087dab043e3e6bf921b8022150c8f78de51
	parent 2a487de72d1a16ff8631293498605819772b8f15
	Author: Anders Damsgaard <[email protected]>
	Date: Wed, 19 Dec 2012 11:52:07 +0100

	Added shear-test

	Diffstat:
	A python/shear-test.py \| 128 +++++++++++++++++++++++++++++…

	1 file changed, 128 insertions(+), 0 deletions(-)
	---
	diff --git a/python/shear-test.py b/python/shear-test.py
	t@@ -0,0 +1,128 @@
	+#!/usr/bin/env python
	+
	+# Import sphere functionality
	+from sphere import *
	+
	+### EXPERIMENT SETUP ###
	+initialization = False
	+consolidation = False
	+shearing = True
	+rendering = True
	+plots = True
	+
	+# Number of particles
	+np = 2e3
	+
	+# Common simulation id
	+sim_id = "shear-test"
	+
	+# Deviatoric stress [Pa]
	+devs = 10e3
	+#devs = 0
	+
	+### INITIALIZATION ###
	+
	+# New class
	+init = Spherebin(np = np, nd = 3, nw = 0, sid = sim_id + "-init")
	+
	+# Save radii
	+init.generateRadii(radius_mean = 0.05)
	+
	+# Use default params
	+init.defaultParams(gamma_n = 0.0, mu_s = 0.4, mu_d = 0.4)
	+
	+# Initialize positions in random grid (also sets world size)
	+init.initRandomGridPos(gridnum = numpy.array([12, 12, 1000]), periodic = 1, co…
	+
	+# Set duration of simulation
	+init.initTemporal(total = 5.0)
	+
	+if (initialization == True):
	+ # Write input file for sphere
	+ init.writebin()
	+
	+ # Run sphere
	+ init.run()
	+
	+ if (plots == True):
	+ # Make a graph of energies
	+ visualize(init.sid, "energy", savefig=True, outformat='png')
	+
	+ if (rendering == True):
	+ # Render images with raytracer
	+ init.render(method = "angvel", max_val = 0.3, verbose = False)
	+
	+
	+### CONSOLIDATION ###
	+
	+# New class
	+cons = Spherebin(np = init.np, nw = 1, sid = sim_id + "-cons")
	+
	+# Read last output file of initialization step
	+lastf = status(sim_id + "-init")
	+cons.readbin("../output/" + sim_id + "-init.output{:0=5}.bin".format(lastf), v…
	+
	+# Setup consolidation experiment
	+cons.consolidate(deviatoric_stress = devs, periodic = init.periodic)
	+
	+
	+# Set duration of simulation
	+cons.initTemporal(total = 1.5)
	+#cons.initTemporal(total = 0.0019, file_dt = 0.00009)
	+#cons.initTemporal(total = 0.0019, file_dt = 1e-6)
	+#cons.initTemporal(total = 0.19, file_dt = 0.019)
	+
	+cons.w_m[0] *= 0.001
	+
	+
	+
	+if (consolidation == True):
	+ # Write input file for sphere
	+ cons.writebin()
	+
	+ # Run sphere
	+ cons.run(dry=True) # show values, don't run
	+ cons.run() # run
	+
	+ if (plots == True):
	+ # Make a graph of energies
	+ visualize(cons.sid, "energy", savefig=True, outformat='png')
	+ visualize(cons.sid, "walls", savefig=True, outformat='png')
	+
	+ if (rendering == True):
	+ # Render images with raytracer
	+ cons.render(method = "pres", max_val = 2.0*devs, verbose = False)
	+
	+
	+### SHEARING ###
	+
	+# New class
	+shear = Spherebin(np = cons.np, nw = cons.nw, sid = sim_id + "-shear")
	+
	+# Read last output file of initialization step
	+lastf = status(sim_id + "-cons")
	+shear.readbin("../output/" + sim_id + "-cons.output{:0=5}.bin".format(lastf), …
	+
	+# Setup shear experiment
	+shear.shear(shear_strain_rate = 0.10, periodic = init.periodic)
	+
	+# Set duration of simulation
	+shear.initTemporal(total = 5.0)
	+
	+if (shearing == True):
	+ # Write input file for sphere
	+ shear.writebin()
	+
	+ # Run sphere
	+ shear.run(dry=True)
	+ shear.run()
	+
	+ if (plots == True):
	+ # Make a graph of energies
	+ visualize(shear.sid, "energy", savefig=True, outformat='png')
	+ visualize(shear.sid, "shear", savefig=True, outformat='png')
	+
	+ if (rendering == True):
	+ # Render images with raytracer
	+ shear.render(method = "pres", max_val = 2.0*devs, verbose = False)
	+