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# Amira Abdel-Rahman
# (c) Massachusetts Institute of Technology 2020
function runMetavoxelGPU!(setup,numTimeSteps,latticeSize,displacements,returnEvery,save)
function initialize!(setup)
nodes = setup["nodes"]
edges = setup["edges"]
i=1
# pre-calculate current position
for node in nodes
node["position"]["y"]=node["position"]["y"]+0.0
node["position"]["z"]=node["position"]["z"]+0.0
# element=parse(Int,node["id"][2:end])
N_position[i]=Vector3(node["position"]["x"],node["position"]["y"],node["position"]["z"])
N_restrained[i]=node["restrained_degrees_of_freedom"][1] ## todo later consider other degrees of freedom
N_displacement[i]=Vector3(node["displacement"]["x"],node["displacement"]["y"],node["displacement"]["z"])
N_angle[i]=Vector3(node["angle"]["x"],node["angle"]["y"],node["angle"]["z"])
N_force[i]=Vector3(node["force"]["x"],node["force"]["y"],node["force"]["z"])
N_fixedDisplacement[i]=Vector3(node["fixedDisplacement"]["x"],node["fixedDisplacement"]["y"],node["fixedDisplacement"]["z"])
N_currPosition[i]=Vector3(node["position"]["x"],node["position"]["y"],node["position"]["z"])
#voxelMaterial(E,mass,nu,rho,zeta,zetaCollision,muStatic,muKinetic,nomSize)
i=i+1
end
i=1
# pre-calculate the axis
for edge in edges
# element=parse(Int,edge["id"][2:end])
# find the nodes that the lements connects
fromNode = nodes[edge["source"]+1]
toNode = nodes[edge["target"]+1]
node1 = [fromNode["position"]["x"] fromNode["position"]["y"] fromNode["position"]["z"]]
node2 = [toNode["position"]["x"] toNode["position"]["y"] toNode["position"]["z"]]
length=norm(node2-node1)
axis=normalize(collect(Iterators.flatten(node2-node1)))
E_source[i]=edge["source"]+1
E_target[i]=edge["target"]+1
E_axis[i]=Vector3(axis[1],axis[2],axis[3])
E_currentRestLength[i]=length #?????? todo change
N_edgeID[E_source[i],N_currEdge[E_source[i]]]=i
N_edgeFirst[E_source[i],N_currEdge[E_source[i]]]=true
N_currEdge[E_source[i]]+=1
N_edgeID[E_target[i],N_currEdge[E_target[i]]]=i
N_edgeFirst[E_target[i],N_currEdge[E_target[i]]]=false
N_currEdge[E_target[i]]+=1
E=(N_material[E_source[i]].E+N_material[E_target[i]].E)/2.0
mass=(N_material[E_source[i]].mass+N_material[E_target[i]].mass)/2.0
nu=(N_material[E_source[i]].nu+N_material[E_target[i]].nu)/2.0
rho=(N_material[E_source[i]].rho+N_material[E_target[i]].rho)/2.0
area=edge["material"]["area"]
E_material[i]=edgeMaterial()
loaded=0.0
strainRatio=(N_material[E_source[i]].E / N_material[E_target[i]].E)
# linear=(N_material[E_source[i]].linear && N_material[E_target[i]].linear)
# poisson=(N_material[E_source[i]].poisson || N_material[E_target[i]].poisson)
linear=true
poisson=false
cTE=0.0 #Coefficient of thermal expansion
# epsilonFail=(N_material[E_source[i]].epsilonFail+N_material[E_target[i]].epsilonFail)/2.0 #TODO CHANGE TO SMALLEST
E_material[i]=edgeMaterial(E,mass,nu,rho,sqrt(area),sqrt(area),length,loaded,strainRatio,linear,poisson,cTE)
#edgeMaterial(E,mass,nu,rho,b,h,L)
i=i+1
end
end
function simulateParallel!(metavoxel,numTimeSteps,dt,returnEvery)
# initialize(setup)
for i in 1:numTimeSteps
#println("Timestep:",i)
doTimeStep!(metavoxel,dt,i)
if(mod(i,returnEvery)==0)
append!(displacements,[Array(metavoxel["N_displacementGPU"])])
end
end
end
########
voxCount=0
linkCount=0
nodes = setup["nodes"]
edges = setup["edges"]
voxCount=size(nodes)[1]
linkCount=size(edges)[1]
strain =0 #todooo moveeee
maxNumEdges=10
########
voxCount=0
linkCount=0
nodes = setup["nodes"]
edges = setup["edges"]
voxCount=size(nodes)[1]
linkCount=size(edges)[1]
strain =0 #todooo moveeee
############# nodes
N_position=fill(Vector3(),voxCount)
N_restrained=zeros(Bool, voxCount)
N_displacement=fill(Vector3(),voxCount)
N_angle=fill(Vector3(),voxCount)
N_currPosition=fill(Vector3(),voxCount)
N_linMom=fill(Vector3(),voxCount)
N_angMom=fill(Vector3(),voxCount)
N_intForce=fill(Vector3(),voxCount)
N_intMoment=fill(Vector3(),voxCount)
N_moment=fill(Vector3(),voxCount)
N_force=fill(Vector3(),voxCount)
N_fixedDisplacement=fill(Vector3(),voxCount)
N_orient=fill(Quaternion(),voxCount)
N_edgeID=fill(-1,(voxCount,maxNumEdges))
N_edgeFirst=fill(true,(voxCount,maxNumEdges))
N_currEdge=fill(1,voxCount)
N_material=fill(voxelMaterial(),voxCount)
N_poissonStrain=fill(Vector3(),voxCount)
#voxelMaterial(E,mass,nu,rho,zeta,zetaCollision,muStatic,muKinetic,nomSize)
############# edges
E_source=fill(0,linkCount)
E_target=fill(0,linkCount)
E_stress=fill(0.0,linkCount)
E_axis=fill(Vector3(1.0,0.0,0.0),linkCount)
E_currentRestLength=fill(0.0,linkCount)
E_pos2=fill(Vector3(),linkCount)
E_angle1v=fill(Vector3(),linkCount)
E_angle2v=fill(Vector3(),linkCount)
E_angle1=fill(Quaternion(),linkCount)
E_angle2=fill(Quaternion(),linkCount)
E_intForce1=fill(Vector3(),linkCount)
E_intMoment1=fill(Vector3(),linkCount)
E_intForce2=fill(Vector3(),linkCount)
E_intMoment2=fill(Vector3(),linkCount)
E_damp=fill(false,linkCount)
E_smallAngle=fill(true,linkCount)
E_material=fill(edgeMaterial(),linkCount)
E_strain=fill(0.0,linkCount)
E_maxStrain=fill(0.0,linkCount)
E_strainOffset=fill(0.0,linkCount)
E_currentTransverseArea=fill(0.0,linkCount)
E_currentTransverseStrainSum=fill(0.0,linkCount)# TODO remove ot incorporate
#################################################################
initialize!(setup)
#################################################################
########################## turn to cuda arrays
############# nodes
N_positionGPU= CuArray(N_position)
N_restrainedGPU= CuArray(N_restrained)
N_displacementGPU= CuArray(N_displacement)
N_angleGPU= CuArray(N_angle)
N_currPositionGPU= CuArray(N_currPosition)
N_linMomGPU= CuArray(N_linMom)
N_angMomGPU= CuArray(N_angMom)
N_intForceGPU= CuArray(N_intForce)
N_intMomentGPU= CuArray(N_intMoment)
N_momentGPU= CuArray(N_moment)
N_forceGPU= CuArray(N_force)
N_fixedDisplacementGPU=CuArray(N_fixedDisplacement)
N_orientGPU= CuArray(N_orient)
N_edgeIDGPU= CuArray(N_edgeID)
N_edgeFirstGPU= CuArray(N_edgeFirst)
N_materialGPU= CuArray(N_material)
N_poissonStrainGPU= CuArray(N_poissonStrain)
############# edges
E_sourceGPU= CuArray(E_source)
E_targetGPU= CuArray(E_target)
E_stressGPU= CuArray(E_stress)
E_axisGPU= CuArray(E_axis)
E_currentRestLengthGPU= CuArray(E_currentRestLength)
E_pos2GPU= CuArray(E_pos2)
E_angle1vGPU= CuArray(E_angle1v)
E_angle2vGPU= CuArray(E_angle2v)
E_angle1GPU= CuArray(E_angle1)
E_angle2GPU= CuArray(E_angle2)
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