One or more new changesets pushed to the primary dolfin repository. A short summary of the last three changesets is included below.
changeset: 4454:fbb359978a752b0c39c1d31a1052121bd5cea53f tag: tip user: "Garth N. Wells <[EMAIL PROTECTED]>" date: Fri Jul 18 13:11:22 2008 +0100 files: dolfin/la/MTL4Matrix.cpp description: Small refinement in MTLMatrix. changeset: 4453:68f3a504544907e3635ff021a40b8bdeab0fb380 user: "Garth N. Wells <[EMAIL PROTECTED]>" date: Fri Jul 18 12:55:37 2008 +0100 files: dolfin/la/MTL4Matrix.cpp dolfin/la/MTL4Matrix.h dolfin/la/MTL4Vector.cpp dolfin/la/MTL4Vector.h dolfin/la/dolfin_la.h dolfin/la/mtl4.h sandbox/mtl4/backend_test/Poisson.form sandbox/mtl4/backend_test/Poisson.h sandbox/mtl4/backend_test/Poisson.py sandbox/mtl4/backend_test/SConstruct sandbox/mtl4/backend_test/main.cpp sandbox/mtl4/conventional_backend/DefaultFactory.cpp sandbox/mtl4/conventional_backend/MTL4Factory.cpp sandbox/mtl4/conventional_backend/MTL4Factory.h sandbox/mtl4/conventional_backend/MTL4Matrix.cpp sandbox/mtl4/conventional_backend/MTL4Matrix.h sandbox/mtl4/conventional_backend/MTL4SparsityPattern.cpp sandbox/mtl4/conventional_backend/MTL4SparsityPattern.h sandbox/mtl4/conventional_backend/MTL4Vector.cpp sandbox/mtl4/conventional_backend/MTL4Vector.h sandbox/mtl4/conventional_backend/SConstruct sandbox/mtl4/conventional_backend/dolfin_la.h sandbox/mtl4/conventional_backend/mtl4.h sandbox/mtl4/mat_vec_mult_bench/main.cpp sandbox/mtl4/nse_bench/main.cpp sandbox/mtl4/poisson_bench/main.cpp description: Run MTL4 sandbox through dolfin::Assembler interface. Results are still very good, espcially for Navier-Stokes. MTL4 relies on specifying the number of non-zeroes per row. Without this, it is slower than uBLAS. For Navier-Stokes (matrix size 681k x 681k), MTL4 with number of non zeroes specified is 3.2 times faster than uBLAS, and 2 times faster for the re-assmeble. Comparison is not entirely fair because eventually some form of sparsity pattern will need to be computed for MTL4 to provide number of non-zeroes per row, although knowing the sparsity pattern may possible speed insertion. MTL4 is 1.25 faster for the matrix-vector multiplication test. changeset: 4452:6b9f22aa71a8330bda1070fb2cb829fc0a20a53a user: "Garth N. Wells <[EMAIL PROTECTED]>" date: Fri Jul 18 11:25:24 2008 +0100 files: sandbox/mtl4/mat_vec_mult_bench/SConstruct sandbox/mtl4/nse_bench/SConstruct sandbox/mtl4/poisson_bench/SConstruct description: Remove MTL4_DIR variable in sandbox. pkg-config now returns necessary path. ---------------------------------------------------------------------- For more details, visit http://www.fenics.org/hg/dolfin _______________________________________________ DOLFIN-dev mailing list [email protected] http://www.fenics.org/mailman/listinfo/dolfin-dev
