New question #268646 on Yade:
https://answers.launchpad.net/yade/+question/268646
Dear yade developers/users,
I have problem with VTK recorder.
VTKRecorder(fileName='vtk/3d-vtk-',recorders=['all'],skipFacetIntr=False,iterPeriod=1000),
When I run the yade, it gives segmentation fault (core dumped) at
iteration=1000. At iteration=0 it could generate vtkfiles.
Couple weeks back I did not have this problem, I tried to look for something
that I missed in the script, I did not find any.
Anybody could help me with this.
Here is my script
from yade import export,pack,qt,plot
soilfric = 30
wallfric = 30
mn,mx=Vector3(0,0,0),Vector3(1,0.5,17) # corners of the initial packing
O.materials.append(FrictMat(density=2700,young=3e10,poisson=0.3,frictionAngle=radians(wallfric),label='walls'))
#O.bodies.append(utils.geom.facetBox((0.5,0.5,5.0),(0.5,0.5,5.0),wallMask=31,material='walls'))
O.bodies.append(utils.geom.facetBox((0.5,0.25,5.0),(0.5,0.25,5.0),wallMask=1,material='walls'))#-x
left
O.bodies.append(utils.geom.facetBox((0.5,0.25,5.0),(0.5,0.25,5.0),wallMask=2,material='walls'))#+x
right
O.bodies.append(utils.geom.facetBox((0.5,0.25,5.0),(0.5,0.25,5.0),wallMask=4,material='walls'))#-y
front
O.bodies.append(utils.geom.facetBox((0.5,0.25,5.0),(0.5,0.25,5.0),wallMask=8,material='walls'))#+y
back
O.bodies.append(utils.geom.facetBox((0.5,0.25,5.0),(0.5,0.25,5.0),wallMask=16,material='walls'))#-z
back
O.materials.append(FrictMat(density=1800,young=3e8,poisson=0.2,frictionAngle=radians(soilfric),label="spheres"))
#O.materials.append(FrictMat(young=young,poisson=0.5,frictionAngle=radians(compFricDegree),density=1600,label='spheres'))#density
is 1600 due to buoyancy, ie 2600-1000
#walls=aabbWalls([mn,mx],thickness=0,oversizeFactor=1.1,material='walls')
#walls=aabbWalls([mn,mx],thickness=0,material='walls')
#wallIds=O.bodies.append(walls)
#wall ids is from 0 to 9
sp=pack.SpherePack()
sp.makeCloud(mn,mx,rMean=.05,rRelFuzz=.0,seed=1)
sp.toSimulation(material='spheres')
O.engines=[
ForceResetter(),
InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Facet_Aabb()]),
InteractionLoop(
[Ig2_Sphere_Sphere_L3Geom(),Ig2_Facet_Sphere_L3Geom()],
[Ip2_FrictMat_FrictMat_FrictPhys()],
[Law2_L3Geom_FrictPhys_ElPerfPl()]
),
GravityEngine(gravity=(0,0,-9.81)),
NewtonIntegrator(damping=0.1),
VTKRecorder(fileName='vtk/3d-vtk-',recorders=['all'],skipFacetIntr=False,iterPeriod=1000),
PyRunner(command='checkUnbalanced()',iterPeriod=100),
PyRunner(command='addPlotData()',iterPeriod=100)
]
#O.dt=.5*utils.PWaveTimeStep()
O.dt=1e-4
O.trackEnergy=True
#weightot = 0
#bid = 0
#for b in O.bodies:
#if b.id<10:
#rad = 0
#else:
#rad = b.shape.radius
#bid = bid+1
#vol = (1.3333333333333333333333333333333333333)*(rad*rad*rad)*(pi)
#weight = 2e3 * vol*9.81
#weightot =weight+weightot
#print "bid = ",b.id," rad = ",rad, " vol = ",vol," mass = ",weight,"
weightot = ",weightot#," pos = ",O.bodies[b.id].state.pos
#def checkUnbalanced():
#if utils.unbalancedForce()<.0001:
#f = open("Output.txt", "w")
#for b in O.bodies:
#if b.id>9:
#x = O.bodies[b.id].state.pos[0]
#y = O.bodies[b.id].state.pos[1]
#z = O.bodies[b.id].state.pos[2]
#fx = O.forces.f(b.id)[0]
#fy = O.forces.f(b.id)[1]
#fz = O.forces.f(b.id)[2]
#intr = O.bodies[b.id].intrs[2]
##print "b.id =",b.id," xyz = ", O.bodies[b.id].state.pos, " fxyz =
",O.forces.f(b.id)
#print "b.id =",b.id," intr = ",intr
#f.write('%i %f %f %f %f %f %f\n' %(b.id,x,y,z,fx,fy,fz))
#f.close()
#O.pause()
def checkUnbalanced():
if utils.unbalancedForce()<.0001:
f = open("Output.txt", "w")
for i in O.interactions:
if not i.isReal: continue
cpx = i.geom.contactPoint[0]
cpy = i.geom.contactPoint[1]
cpz = i.geom.contactPoint[2]
fnx = i.phys.normalForce[0]
fny = i.phys.normalForce[1]
fnz = i.phys.normalForce[2]
fsx = i.phys.shearForce[0]
fsy = i.phys.shearForce[1]
fsz = i.phys.shearForce[2]
#print "cpx = ",cpx,"cpy = ",cpy,"cpz = ",cpz," fnx = ",fnx," fny =
",fny," fnz = ",fnz," fsx = ",fsx," fsy = ",fsy," fsz = ",fsz
f.write('%f %f %f %f %f %f %f %f %f\n'
%(cpx,cpy,cpz,fnx,fny,fnz,fsx,fsy,fsz))
f.close()
O.save("simulation.xml.bz2")
plot.saveDataTxt('history.txt')
O.pause()
def addPlotData():
Fbasez = O.forces.f(8)[2]+O.forces.f(9)[2]
plot.addData(i=O.iter,unbalanced=utils.unbalancedForce(),Fbasez=Fbasez)
yade.qt.View();
plot.plots={'i':('Fbasez')}
plot.plot()
O.saveTmp()
Thank you so much
Best regards,
Alsidqi
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