Dataflow Datatypes NCRR Dataflow Datatypes Revisited Dataflow Datatypes

Dataflow Datatypes NCRR

Dataflow Datatypes Revisited Dataflow Datatypes Matrix Field Color. Map Geometry NCRR

Matrices: Class Hierarchy • Matrix -- base class Dataflow Datatypes • get, put, [ ], nrows, ncols, get_row, get_col, get_val, zero, mult_transpose, print, {is_, as_, }{sparse, dense, column}, cg_solve, bicg_solve, scalar_multiply • Sparse. Row. Matrix • int *rows, int *cols, double *a, int nnz; • Column. Matrix • double *data; • Dense. Matrix • double **data; NCRR

Matrices: External Libraries • PETSc Dataflow Datatypes • Preconditioners: jacobi, bijacobi, sor, eisenstat, icc, ilu, asm, sles, lu, mg, spai, milu, nn, cholesky, ramg • Solvers: KSRICHARDSON, PSPCHEBYCHEV, KSPGG, KSPGMRES, KSPTCQMR, KSPBCGS, KSPBGS, KSPTFQMR, KSPCR, KSPLSQR, KSPBICG, KSPPREONLY • BLAS and Atlas • Faster linear-algebra via loop unrolling NCRR

Dataflow Datatypes Revisited Dataflow Datatypes Matrix Field Color. Map Geometry NCRR

Fields: Mesh + Dataflow Datatypes Geometry Regular Point. Cloud. Field Irregular Data Scanline. Field Curve. Field int, float, double, … Vector, Tensor, … Data_at (center) Image. Field Quad. Surf. Field Tri. Surf. Field Properties Lat. Vol. Field Hex. Vol. Field Tet. Vol. Field NCRR

Meshes Dataflow Datatypes • Mesh -- base class • get_bounding_box, transform, synchronize, dimensionality • Point. Cloud. Mesh • Iterators, get_{node, edge, face, cell}, locate, get_weights, add_node • Hex. Vol. Mesh • Iterators, get_{node, edge, face, cell}, locate, get_weights, add_node, add_elem • Image. Mesh • Same, plus new Index type NCRR

Fields • Field: : Generic. Field -- base class • • • Dataflow Datatypes Generic. Field<Mesh. Type, Data. Type>, data_at Holds Handle to Mesh Owns Data -- resize_fdata() [new Data. Type for FData{2, 3}d] Freeze/Thaw (data) value(), set_value(), fdata() mesh(), mesh_detach() • All fields derive from Generic. Field • Point. Cloud. Mesh -> Point. Cloud. Field • Image. Mesh -> Image. Field • Persistent: : Datatype: : Property. Manager: : Field: : Generic. Field io(), Per. Type. ID lock/gen map of attrib/values data_at, interfaces • Mesh: : Property. Manager NCRR

Persistent • Serialize data for disk I/O Dataflow Datatypes • Eventually for distributed data marshalling • Architecture independent • Build atop XDR • Slow for big data • Optional circumvention for Dense. Matrix • Data files are (somewhat) human readable, but should ~not~ be generated / edited by anything other than SCIRun • Use “convert” programs NCRR

Persistent void Dataflow Matrix: : io(Piostream& stream) { /* int version = */ stream. begin_class("Matrix", MATRIX_VERSION); Property. Manager: : io(stream); stream. end_class(); } Datatypes void Column. Matrix: : io(Piostream& stream) { /* int version = */stream. begin_class("Column. Matrix", COLUMNMATRIX_VERSION); Matrix: : io(stream); stream. io(rows); if(stream. reading()) { data=scinew double[rows]; } int i; for(i=0; i<rows; i++) stream. io(data[i]); stream. end_class(); } NCRR

Converter: Curve. Field. To. Text Dataflow Datatypes Mesh. Handle m. H = handle->mesh(); Curve. Mesh *cm = dynamic_cast<Curve. Mesh *>(m. H. get_rep()); Curve. Mesh: : Node: : iterator niter_end; Curve. Mesh: : Node: : size_type nsize; cm->begin(niter); cm->end(niter_end); cm->size(nsize); cerr << "Number of points = "<< nsize <<"n"; while(niter != niter_end) { Point p; cm->get_center(p, *niter); fprintf(f. Pts, "%lf %lfn", p. x(), p. y(), p. z()); ++niter; } Curve. Mesh: : Edge: : size_type esize; Curve. Mesh: : Edge: : iterator eiter_end; Curve. Mesh: : Node: : array_type edge_nodes(2); cm->size(esize); cm->begin(eiter); cm->end(eiter_end); FILE *f. Edges = fopen(edges. Name, "wt"); cerr << "Number of edges = "<< esize <<"n"; while(eiter != eiter_end) { cm->get_nodes(edge_nodes, *eiter); fprintf(f. Edges, "%d %dn", (int)edge_nodes[0]+base. Index, (int)edge_nodes[1]+base. Index); ++eiter; } NCRR