Sparse Direct Solver
Sparse Direct Solver
I would like to know which routine is for sparse LU direct solver? I would like to know whether the LU solve under Linear Systems in the documentation can be used for solving sparse matrices? Thank you!

 Posts: 90
 Joined: Tue Sep 02, 2014 5:44 pm
Re: Sparse Direct Solver
The LU is an incomplete LU (ILU) this can be used as a preconditioner for iterative solvers.
Re: Sparse Direct Solver
You mean function magma_dgesv() is ILU? Can I use it as direct solver for sparse matrix?
Re: Sparse Direct Solver
No, magma_dgesv is normal LU (direct method) for dense matrices.
For sparse methods, see the routines under Sparseiter and in Modules > Sparse.
http://icl.cs.utk.edu/projectsfiles/mag ... rsesolvers
http://icl.cs.utk.edu/projectsfiles/mag ... _gesv.html
mark
For sparse methods, see the routines under Sparseiter and in Modules > Sparse.
http://icl.cs.utk.edu/projectsfiles/mag ... rsesolvers
http://icl.cs.utk.edu/projectsfiles/mag ... _gesv.html
mark