DOLFIN wrote: > One or more new changesets pushed to the primary dolfin repository. > A short summary of the last three changesets is included below. > > changeset: 4588:71091f3c4edbf683dba1924cea8feecb83eb8f0f > tag: tip > user: "Garth N. Wells <[EMAIL PROTECTED]>" > date: Fri Aug 15 14:20:04 2008 +0100 > files: sandbox/cholmod/CholmodCholeskySolver.cpp > sandbox/cholmod/CholmodCholeskySolver.h sandbox/cholmod/main.cpp > description: > Add comparison between UMFPACK and CHOLMOD for solving symetric linear system. > > CHOLMOD requires less than half the time of UMFPACK to solve. >
Here is another interesting point: Both Cholesky and LU are slightly faster with MTL4 than with uBLAS. This is probably because the uBLAS backend inserts some explicit zero elements into the matrix. UBLAS ===================================== Direct linear solver time | solve time ---------------------------------------- CholmodCholeskySolver | 3.01 UmfpackLUSolver | 6.76 na55:cholmod > emacs ma main.cpp main.o MTL4 ====================================== Direct linear solver time | solve time ---------------------------------------- CholmodCholeskySolver | 2.54 UmfpackLUSolver | 5.99 /Dag
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