[petsc-users] Reading in a matrix from ASCII file

[Storm Weiner]

Hey there,

I'm working through some basic examples, and I want to read in a test
matrix I have stored in a (row, column, value) ASCII file.   How can I read
this in using PETSc?


I found the routine PetscViewerASCIIOpen and PetscViewerASCIIRead  but I'm
not sure how to tell it that what I have is actually a matrix.  In this
example, I know the matrix, so I can specify how many entries to read, but
is there a way to just read "the whole file"?

What's the preferred PETSc way to do this?

I'm using F90 by the way.


-Storm
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