free C code for large sparse matrix linear solver
 

Hi: Friends, i am busy with developing a CFD code with c++ language and Finite Volume Method. So would you please give me some information about the free code for large sparse matrix linear solver. Regards

Re: free C code for large sparse matrix linear sol
 

Try

1.PETSc: http://www-unix.mcs.anl.gov/petsc/petsc-as/

2.HYPRE: http://www.llnl.gov/CASC/linear_solvers/

3. SuperLU: http://crd.lbl.gov/~xiaoye/SuperLU/

Re: free C code for large sparse matrix linear sol
 

Thank you very much for your quick response, but i think it need time to master the packaes that you just mentioned. I want to know if there are some easy to study codes. regards

Re: free C code for large sparse matrix linear sol
 

UMFPACK is quite simple but performs (if I'm not wrong) only direct LU decomposition. Luca

Re: free C code for large sparse matrix linear sol
 

please send me sparse matrix in c

Re: free C code for large sparse matrix linear sol
 

Re: free C code for large sparse matrix linear sol
 

> please send me sparse matrix in c Here is a sample sparse matrix (in C, fortran, whatever)

1 0 0

0 2 0

0 0 3

Re: free C code for large sparse matrix linear sol *NM*