Ejemplo n.º 1
0
// Update grid momenta and transport rates
void UpdateMomentaTask::Execute(void)
{
	CommonException *umErr = NULL;
	
#pragma omp parallel for
	for(int i=1;i<=nnodes;i++)
	{	NodalPoint *ndptr = nd[i];
		ndptr->UpdateMomentaOnNode(timestep);
		
		// get grid transport rates (update transport properties when particle state updated)
		// do first so both material and crack contact will have actual rates
		TransportTask *nextTransport=transportTasks;
		while(nextTransport!=NULL)
			nextTransport=nextTransport->TransportRates(ndptr,timestep);

		// material contact
		if(fmobj->multiMaterialMode)
		{	try
			{	ndptr->MaterialContactOnNode(timestep,UPDATE_MOMENTUM_CALL,NULL,NULL);
			}
			catch(CommonException err)
			{	if(umErr==NULL)
				{
#pragma omp critical
					umErr = new CommonException(err);
				}
			}
		}
		
	}
	
	// throw error now
	if(umErr!=NULL) throw *umErr;
		
	// adjust momenta and forces for crack contact on known nodes
	CrackNode::CrackContactTask4(timestep);
	
}
Ejemplo n.º 2
0
// Get mass matrix, find dimensionless particle locations,
//	and find grid momenta
void MassAndMomentumTask::Execute(void)
{   
	CommonException *massErr = NULL;
    double fn[maxShapeNodes],xDeriv[maxShapeNodes],yDeriv[maxShapeNodes],zDeriv[maxShapeNodes];
    int nds[maxShapeNodes];

#pragma mark ... UPDATE RIGID CONTACT PARTICLES
    // Set rigid BC contact material velocities first (so loop can be parallel)
	// GetVectorSetting() uses globals and therefore can't be parallel
    if(nmpmsRC>nmpmsNR)
    {   Vector newvel;
        bool hasDir[3];
        for(int p=nmpmsNR;p<nmpmsRC;p++)
        {   MPMBase *mpmptr = mpm[p];
            const RigidMaterial *matID = (RigidMaterial *)theMaterials[mpm[p]->MatID()];
            if(matID->GetVectorSetting(&newvel,hasDir,mtime,&mpmptr->pos))
            {   // change velocity if functions being used, otherwise keep velocity constant
                if(hasDir[0]) mpmptr->vel.x = newvel.x;
                if(hasDir[1]) mpmptr->vel.y = newvel.y;
                if(hasDir[2]) mpmptr->vel.z = newvel.z;
            }
        }
    }
	
	// loop over non-rigid and rigid contact particles - this parallel part changes only particle p
	// mass, momenta, etc are stored on ghost nodes, which are sent to real nodes in next non-parallel loop
    //for(int pn=0;pn<4;pn++)
#pragma omp parallel private(fn,xDeriv,yDeriv,zDeriv,nds)
	{
        // thread for patch pn
		int pn = GetPatchNumber();
        
		// in case 2D planar
        for(int i=0;i<maxShapeNodes;i++) zDeriv[i] = 0.;
        
#pragma mark ... EXTRAPOLATE NONRIGID PARTICLES
		try
		{	for(int block=FIRST_NONRIGID;block<=FIRST_RIGID_CONTACT;block++)
			{	MPMBase *mpmptr = patches[pn]->GetFirstBlockPointer(block);
				while(mpmptr!=NULL)
                {   const MaterialBase *matID = theMaterials[mpmptr->MatID()];		// material object for this particle
					int matfld = matID->GetField();									// material velocity field
					
					// get nodes and shape function for material point p
					int i,numnds;
					const ElementBase *elref = theElements[mpmptr->ElemID()];		// element containing this particle
					if(fmobj->multiMaterialMode)
						elref->GetShapeGradients(&numnds,fn,nds,xDeriv,yDeriv,zDeriv,mpmptr);
					else
						elref->GetShapeFunctions(&numnds,fn,nds,mpmptr);
					
					// Add particle property to each node in the element
					short vfld;
					NodalPoint *ndptr;
					for(i=1;i<=numnds;i++)
					{   // get node pointer
                        ndptr = GetNodePointer(pn,nds[i]);
						
						// momentum vector (and allocate velocity field if needed)
						vfld = mpmptr->vfld[i];
						ndptr->AddMassMomentum(mpmptr,vfld,matfld,fn[i],xDeriv[i],yDeriv[i],zDeriv[i],
											   1,block==FIRST_NONRIGID);
					}
					
					// next material point
					mpmptr = (MPMBase *)mpmptr->GetNextObject();
				}
			}
		}
		catch(CommonException err)
        {   if(massErr==NULL)
			{
#pragma omp critical
				massErr = new CommonException(err);
			}
		}
        catch(...)
        {   cout << "Unknown exception in MassAndMomentumTask()" << endl;
        }
	}
	
	// throw now - only possible error if too many CPDI nodes in 3D
	if(massErr!=NULL) throw *massErr;
    
	// reduction of ghost node forces to real nodes
	int totalPatches = fmobj->GetTotalNumberOfPatches();
	if(totalPatches>1)
	{	for(int pn=0;pn<totalPatches;pn++)
			patches[pn]->MassAndMomentumReduction();
	}
    
#pragma mark ... RIGID BOUNDARY CONDITIONS
	// undo dynamic velocity, temp, and conc BCs from rigid materials
    // and get pointer to first empty one in reuseRigid...BC
	UnsetRigidBCs((BoundaryCondition **)&firstVelocityBC,(BoundaryCondition **)&lastVelocityBC,
				  (BoundaryCondition **)&firstRigidVelocityBC,(BoundaryCondition **)&reuseRigidVelocityBC);
	UnsetRigidBCs((BoundaryCondition **)&firstTempBC,(BoundaryCondition **)&lastTempBC,
				  (BoundaryCondition **)&firstRigidTempBC,(BoundaryCondition **)&reuseRigidTempBC);
	UnsetRigidBCs((BoundaryCondition **)&firstConcBC,(BoundaryCondition **)&lastConcBC,
				  (BoundaryCondition **)&firstRigidConcBC,(BoundaryCondition **)&reuseRigidConcBC);
	
	// For Rigid BC materials create velocity BC on each node in the element
	for(int p=nmpmsRC;p<nmpms;p++)
	{	MPMBase *mpmptr = mpm[p];										// pointer
		
		int matid0 = mpmptr->MatID();
		const MaterialBase *matID = theMaterials[matid0];				// material object for this particle
		RigidMaterial *rigid=(RigidMaterial *)matID;

		const ElementBase *elref = theElements[mpmptr->ElemID()];		// element containing this particle
		int numnds=elref->NumberNodes();
		
		double rvalue;
		for(int i=1;i<=numnds;i++)
		{   int mi=elref->nodes[i-1];		// 1 based node
			
			// look for setting function in one to three directions
			// GetVectorSetting() returns true if function has set the velocity, otherwise it return FALSE
			bool hasDir[3];
			Vector rvel;
			if(rigid->GetVectorSetting(&rvel,hasDir,mtime,&mpmptr->pos))
			{   // velocity set by 1 to 3 functions as determined by hasDir[i]
				if(hasDir[0])
				{	mpmptr->vel.x = rvel.x;
					SetRigidBCs(mi,matid0,X_DIRECTION,rvel.x,0.,rigid->mirrored,
							(BoundaryCondition **)&firstVelocityBC,(BoundaryCondition **)&lastVelocityBC,
							(BoundaryCondition **)&firstRigidVelocityBC,(BoundaryCondition **)&reuseRigidVelocityBC);
				}
				if(hasDir[1])
				{	mpmptr->vel.y = rvel.y;
					SetRigidBCs(mi,matid0,Y_DIRECTION,rvel.y,0.,rigid->mirrored,
								(BoundaryCondition **)&firstVelocityBC,(BoundaryCondition **)&lastVelocityBC,
								(BoundaryCondition **)&firstRigidVelocityBC,(BoundaryCondition **)&reuseRigidVelocityBC);
				}
				if(hasDir[2])
				{	mpmptr->vel.z = rvel.z;
					SetRigidBCs(mi,matid0,Z_DIRECTION,rvel.z,0.,rigid->mirrored,
								(BoundaryCondition **)&firstVelocityBC,(BoundaryCondition **)&lastVelocityBC,
								(BoundaryCondition **)&firstRigidVelocityBC,(BoundaryCondition **)&reuseRigidVelocityBC);
				}
			}
			else
			{   // velocity set by particle velocity in selected directions
				if(rigid->RigidDirection(X_DIRECTION))
				{	SetRigidBCs(mi,matid0,X_DIRECTION,mpmptr->vel.x,0.,rigid->mirrored,
									(BoundaryCondition **)&firstVelocityBC,(BoundaryCondition **)&lastVelocityBC,
									(BoundaryCondition **)&firstRigidVelocityBC,(BoundaryCondition **)&reuseRigidVelocityBC);
				}
				if(rigid->RigidDirection(Y_DIRECTION))
				{	SetRigidBCs(mi,matid0,Y_DIRECTION,mpmptr->vel.y,0.,rigid->mirrored,
								(BoundaryCondition **)&firstVelocityBC,(BoundaryCondition **)&lastVelocityBC,
								(BoundaryCondition **)&firstRigidVelocityBC,(BoundaryCondition **)&reuseRigidVelocityBC);
				}
				if(rigid->RigidDirection(Z_DIRECTION))
				{	SetRigidBCs(mi,matid0,Z_DIRECTION,mpmptr->vel.z,0.,rigid->mirrored,
								(BoundaryCondition **)&firstVelocityBC,(BoundaryCondition **)&lastVelocityBC,
								(BoundaryCondition **)&firstRigidVelocityBC,(BoundaryCondition **)&reuseRigidVelocityBC);
				}
			}
			
			// temperature
			if(rigid->RigidTemperature())
			{	if(rigid->GetValueSetting(&rvalue,mtime,&mpmptr->pos)) mpmptr->pTemperature=rvalue;
				SetRigidBCs(mi,matid0,TEMP_DIRECTION,mpmptr->pTemperature,0.,0,
							(BoundaryCondition **)&firstTempBC,(BoundaryCondition **)&lastTempBC,
							(BoundaryCondition **)&firstRigidTempBC,(BoundaryCondition **)&reuseRigidTempBC);
			}
			
			// concentration
			if(rigid->RigidConcentration())
			{	if(rigid->GetValueSetting(&rvalue,mtime,&mpmptr->pos)) mpmptr->pConcentration=rvalue;
				SetRigidBCs(mi,matid0,CONC_DIRECTION,mpmptr->pConcentration,0.,0,
							(BoundaryCondition **)&firstConcBC,(BoundaryCondition **)&lastConcBC,
							(BoundaryCondition **)&firstRigidConcBC,(BoundaryCondition **)&reuseRigidConcBC);
			}
		}
	}
	
	// if any left over rigid BCs, delete them now
	RemoveRigidBCs((BoundaryCondition **)&firstVelocityBC,(BoundaryCondition **)&lastVelocityBC,(BoundaryCondition **)&firstRigidVelocityBC);
	RemoveRigidBCs((BoundaryCondition **)&firstTempBC,(BoundaryCondition **)&lastTempBC,(BoundaryCondition **)&firstRigidTempBC);
	RemoveRigidBCs((BoundaryCondition **)&firstConcBC,(BoundaryCondition **)&lastConcBC,(BoundaryCondition **)&firstRigidConcBC);
	
#ifdef COMBINE_RIGID_MATERIALS
	bool combineRigid = firstCrack!=NULL && fmobj->multiMaterialMode && fmobj->hasRigidContactParticles;
#endif
	
#pragma mark ... POST EXTRAPOLATION TASKS
	// Post mass and momentum extrapolation calculations on nodes
#pragma omp parallel
	{
		// variables for each thread
		CrackNode *firstCrackNode=NULL,*lastCrackNode=NULL;
		MaterialInterfaceNode *firstInterfaceNode=NULL,*lastInterfaceNode=NULL;
		
		// Each pass in this loop should be independent
#pragma omp for nowait
		for(int i=1;i<=nnodes;i++)
		{	// node reference
			NodalPoint *ndptr = nd[i];
			
			try
            {
#ifdef COMBINE_RIGID_MATERIALS
                // combine rigid fields if necessary
                if(combineRigid)
                    ndptr->CopyRigidParticleField();
#endif
				// Get total nodal masses and count materials if multimaterial mode
				ndptr->CalcTotalMassAndCount();

				// multimaterial contact
				if(fmobj->multiMaterialMode)
					ndptr->MaterialContactOnNode(timestep,MASS_MOMENTUM_CALL,&firstInterfaceNode,&lastInterfaceNode);
				
				// crack contact
				if(firstCrack!=NULL)
					ndptr->CrackContact(FALSE,0.,&firstCrackNode,&lastCrackNode);
				
				// get transport values on nodes
				TransportTask *nextTransport=transportTasks;
				while(nextTransport!=NULL)
					nextTransport = nextTransport->GetNodalValue(ndptr);
			}
			catch(CommonException err)
			{	if(massErr==NULL)
				{
#pragma omp critical
					massErr = new CommonException(err);
				}
			}
		}

#pragma omp critical
		{
			// link up crack nodes
			if(lastCrackNode != NULL)
			{	if(CrackNode::currentCNode != NULL)
					firstCrackNode->SetPrevBC(CrackNode::currentCNode);
				CrackNode::currentCNode = lastCrackNode;
			}
			
			// link up interface nodes
			if(lastInterfaceNode != NULL)
			{	if(MaterialInterfaceNode::currentIntNode != NULL)
					firstInterfaceNode->SetPrevBC(MaterialInterfaceNode::currentIntNode);
				MaterialInterfaceNode::currentIntNode = lastInterfaceNode;
			}
		}
	}
	
	// throw any errors
	if(massErr!=NULL) throw *massErr;
    
#pragma mark ... IMPOSE BOUNDARY CONDITIONS
    
	// Impose transport BCs and extrapolate gradients to the particles
	TransportTask *nextTransport=transportTasks;
	while(nextTransport!=NULL)
    {   nextTransport->ImposeValueBCs(mtime);
		nextTransport = nextTransport->GetGradients(mtime);
	}
	
	// locate BCs with reflected nodes
    if(firstRigidVelocityBC!=NULL)
    {   NodalVelBC *nextBC=firstRigidVelocityBC;
        double mstime=1000.*mtime;
        //cout << "# Find Reflected Nodes" << endl;
        while(nextBC!=NULL)
            nextBC = nextBC->SetMirroredVelBC(mstime);
    }
	
	// used to call class methods for material contact and crack contact here
	// Impose velocity BCs
	NodalVelBC::GridMomentumConditions(TRUE);

}
Ejemplo n.º 3
0
// Get mass matrix, find dimensionless particle locations,
//	and find grid momenta
// throws CommonException()
void PostExtrapolationTask::Execute(void)
{
	CommonException *massErr = NULL;
	
	bool combineRigid = firstCrack!=NULL && fmobj->multiMaterialMode && fmobj->hasRigidContactParticles;
	
	// Post mass and momentum extrapolation calculations on nodes
#pragma omp parallel
	{
		// variables for each thread
		CrackNode *firstCrackNode=NULL,*lastCrackNode=NULL;
		MaterialInterfaceNode *firstInterfaceNode=NULL,*lastInterfaceNode=NULL;
		
		// Each pass in this loop should be independent
#pragma omp for nowait
		for(int i=1;i<=nnodes;i++)
		{	// node reference
			NodalPoint *ndptr = nd[i];
			
			try
            {	// combine rigid fields if necessary
                if(combineRigid)
                    ndptr->CopyRigidParticleField();
				// Get total nodal masses and count materials if multimaterial mode
				ndptr->CalcTotalMassAndCount();
                
				// multimaterial contact
				if(fmobj->multiMaterialMode)
					ndptr->MaterialContactOnNode(timestep,MASS_MOMENTUM_CALL,&firstInterfaceNode,&lastInterfaceNode);
				
				// crack contact
				if(firstCrack!=NULL)
					ndptr->CrackContact(FALSE,0.,&firstCrackNode,&lastCrackNode);
				
				// get transport values on nodes
				TransportTask *nextTransport=transportTasks;
				while(nextTransport!=NULL)
					nextTransport = nextTransport->GetNodalValue(ndptr);
			}
			catch(std::bad_alloc&)
			{	if(massErr==NULL)
				{
#pragma omp critical (error)
					massErr = new CommonException("Memory error","PostExtrapolationTask::Execute");
				}
			}
			catch(...)
			{	if(massErr==NULL)
				{
#pragma omp critical (error)
					massErr = new CommonException("Unexpected error","PostExtrapolationTask::Execute");
				}
			}
		}
		
#pragma omp critical (linknodes)
		{
			// link up crack nodes
			if(lastCrackNode != NULL)
			{	if(CrackNode::currentCNode != NULL)
				firstCrackNode->SetPrevBC(CrackNode::currentCNode);
				CrackNode::currentCNode = lastCrackNode;
			}
			
			// link up interface nodes
			if(lastInterfaceNode != NULL)
			{	if(MaterialInterfaceNode::currentIntNode != NULL)
				firstInterfaceNode->SetPrevBC(MaterialInterfaceNode::currentIntNode);
				MaterialInterfaceNode::currentIntNode = lastInterfaceNode;
			}
		}
	}
	
	// throw any errors
	if(massErr!=NULL) throw *massErr;
    
#pragma mark ... IMPOSE BOUNDARY CONDITIONS
	
	// Impose transport BCs and extrapolate gradients to the particles
	TransportTask *nextTransport=transportTasks;
	while(nextTransport!=NULL)
    {   nextTransport->ImposeValueBCs(mtime);
		nextTransport = nextTransport->GetGradients(mtime);
	}
	
	// locate BCs with reflected nodes
    if(firstRigidVelocityBC!=NULL)
    {   NodalVelBC *nextBC=firstRigidVelocityBC;
        //cout << "# Find Reflected Nodes" << endl;
        while(nextBC!=NULL)
            nextBC = nextBC->SetMirroredVelBC(mtime);
    }
	
	// used to call class methods for material contact and crack contact here
	// Impose velocity BCs
	NodalVelBC::GridMomentumConditions(TRUE);
}