Richard, We have code that read MatrixMarket format, and write into a petsc binary file. Then you can use petsc MatLoad() for viewing or computation. Let me know if you like to have it. Hong On Mon, 4 Apr 2005, Richard Tran Mills wrote:

Hi Folks,

It seems that someone always wants me to either give them a matrix in Harwell-Boeing format, or to try experimenting with a matrix that they give me in Harwell-Boeing format. I would prefer that the format just go away, but since this doesn't seem to be happening, I would like to have some PETSc support mechanisms for reading and writing the beasts. I'd like to have something like a PETSC_VIEWER_HB for writing them out, and I'd like to have MatLoad() be able to use the viewer to load the matrices as well.

I thought I might look into adding something like this, but before I waste time with it, I thought I would ask to folks if either a) they think it is a bad idea or b) someone has already got the code for this.

Cheers, Richard