I am sorry, but I am not yet clear on how to do this. I read ex32.c and ex72.c but I am still confused. What is ASCII 'slap' format? How should matrix be supplied to PETSc?
My matrix is a 2000x1900 matrix given in the format MATLAB stores sparse matrices. i.e [row, column, non-zero-entry] format. On Tue, Dec 21, 2010 at 11:03 PM, Gaurish Telang <gaurish108 at gmail.com>wrote: > i have this large text file containing a matrix. > This text file contains the non-zero entries of a very large sparse > matrix > > The first two columns indicate the position of the non-zero entry > and the last column the actual non-zero value it self > > for > example the matrix > 1 0 8 > 0 0 5 > 6 0 0 > is written in the text file in the form of > 1 1 1 > 1 3 8 > 2 3 5 > 3 1 6 > > This is the standard [(row ,column), non-zero] entry format. i want > PETSc to load this matrix > from the text file > i am not sure how > to do that. What commands do I use? > > I am new to PETSc, so some detail in the explanation will be really > helpful. > > Sincere thanks, > > Gaurish. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20101222/c6f2bd2e/attachment.htm>
