Re: [petsc-dev] Extending MatLRC

2016-11-14 Thread Jed Brown
Barry Smith writes: >Go ahead and extend it. Presumably to A + X C Y'. >> On Nov 14, 2016, at 6:14 AM, Jose E. Roman wrote: >> >> Hi. >> >> I need to work with low-rank matrices represented as the outer product of >> tall-skinny matrices.

Re: [petsc-dev] Extending MatLRC

2016-11-14 Thread Barry Smith
Go ahead and extend it. > On Nov 14, 2016, at 6:14 AM, Jose E. Roman wrote: > > Hi. > > I need to work with low-rank matrices represented as the outer product of > tall-skinny matrices. Specifically, I need to cover these cases: > - Symmetric positive-definite: X*X' >

[petsc-dev] Extending MatLRC

2016-11-14 Thread Jose E. Roman
Hi. I need to work with low-rank matrices represented as the outer product of tall-skinny matrices. Specifically, I need to cover these cases: - Symmetric positive-definite: X*X' - Symmetric indefinite: X*C*X' - Non-symmetric: X*Y' (or maybe X*C*Y') This could be added by extending MATLRC