[julia-users] Re: Symmetric view of a Sparse Matrix

2014-07-09 Thread Eduardo Lenz
Hi.. I missed a :0) in my last comment, since I have no idea how to implement it ...

[julia-users] Re: Symmetric view of a Sparse Matrix

2014-07-09 Thread Eduardo Lenz
OK, I was thinking about general symmetric matrices (therefore I was thinking about LU - UMFPACK), though my operators are, indeed, positive definite. I never realized that Julia uses two different libraries for solving sparse matrices, but it makes sense. Good to know that it is a matter of cha

[julia-users] Re: Symmetric view of a Sparse Matrix

2014-07-09 Thread Douglas Bates
On Wednesday, July 9, 2014 11:41:59 AM UTC-5, Eduardo Lenz wrote: > > Thank you. > I just thought that, as Julia uses UMFPACK to solve it, one can just > inform UMFPACK that the matrix is symmetric (UMFPACK 4.1> can handle this > kind of matrix). Off course, it does not addresses other types of

[julia-users] Re: Symmetric view of a Sparse Matrix

2014-07-09 Thread Eduardo Lenz
Thank you. I just thought that, as Julia uses UMFPACK to solve it, one can just inform UMFPACK that the matrix is symmetric (UMFPACK 4.1> can handle this kind of matrix). Off course, it does not addresses other types of operations, like for example matrix products. But again, thank you for this