oda.h File Reference

The class that manages the octree mesh that support FEM computations. Note that this file is a refactored version from Dendro4 which is changed to support Dendro-5.0 Currently we use mesh based FEM computations but in future we will move towards the mesh - free FEM computation methods. More...

#include "dendro.h"
#include <iostream>
#include <vector>
#include "mpi.h"
#include "mesh.h"
#include "parUtils.h"
#include "testUtils.h"
#include "asyncExchangeContex.h"
#include "oct2vtk.h"
#include "odaUtils.h"
#include "matRecord.h"
#include <assert.h>
#include "oda.tcc"

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Classes
struct	ot::LoopCounter
	: Simple structure to keep the loop counters More...
class	ot::DA

Namespaces
	ot
	Simple class to manage async data transfer in the ODA class.

Macros
#define	VECType   DendroScalar
#define	MATType   DendroScalar

Enumerations
enum	ot::DA_FLAGS::LoopType {   ALL, WRITABLE, INDEPENDENT, W_DEPENDENT,   W_BOUNDARY, LOCAL_ELEMENTS, PREGHOST_ELEMENTS, POSTGHOST_ELEMENTS }
	loop flags, ALL : Loop over all the elements (note here we loop only on the local + level 1 ghost elements). WRITABLE: Loop over INDEPENDENT U W_DEPENDENT INDEPENDENT : Loop over all the local elements which DOES NOT point to any ghost node region. W_DEPENDENT : Loop over all local elements which has AT LEAST ONE node which point to ghost node region W_BOUNDARY : Loop over all the local elements which is on the domain boundary. More...
enum	ot::DA_FLAGS::BdyType {   X_MIN, X_MAX, Y_MIN, Y_MAX,   Z_MIN, Z_MAX }
enum	ot::DA_FLAGS::Refine { DA_NO_CHANGE, DA_REFINE, DA_COARSEN }
	contains the refine flags. DA_NO_CHANGE : no change needed for the octant DA_REFINE : refine the octant DA_COARSEN: coarsen the octant.
enum	WriteMode { SET_VALUES =0, ADD_VALUES }
enum	ot::DAType { OCT, PETSC }
	: DA type OCT: uses Dendro DA and PETSC uses petsc based DA
enum	ot::MVECType { MESH_BASED, MESH_FREE }
	: denotes the type of the matvec being computed, MESH_BASED - denotes the MatVec computation using mesh data structures. MESH_FREE - denotes the MatVec computation without using mesh data structures.

Detailed Description

The class that manages the octree mesh that support FEM computations. Note that this file is a refactored version from Dendro4 which is changed to support Dendro-5.0 Currently we use mesh based FEM computations but in future we will move towards the mesh - free FEM computation methods.

Distributed Array (DA) methods currently uses ot::Mesh class to provide interface to write FEM loops.

Author

Milinda Fernando date: 10/29/2018

Enumeration Type Documentation

BdyType

enum ot::DA_FLAGS::BdyType

X_MIN : boundary of the x min on the computational domain. X_MIN : boundary of the x min on the computational domain

Y_MIN : boundary of the y min on the computational domain Y_MIN : boundary of the y min on the computational domain

Z_MIN : boundary of the z min on the computational domain Z_MIN : boundary of the z min on the computational domain

LoopType

enum ot::DA_FLAGS::LoopType

loop flags, ALL : Loop over all the elements (note here we loop only on the local + level 1 ghost elements). WRITABLE: Loop over INDEPENDENT U W_DEPENDENT INDEPENDENT : Loop over all the local elements which DOES NOT point to any ghost node region. W_DEPENDENT : Loop over all local elements which has AT LEAST ONE node which point to ghost node region W_BOUNDARY : Loop over all the local elements which is on the domain boundary.

LOCAL_ELEMENTS : Loop over local elements of the mesh PREGHOST_ELEMENTS : Loop over pre ghost elements. POSTGHOST_ELEMENTS : Loop over post ghost elements