Dear PETSc Experts!
Do you know if there is an efficient way to move a matrix from a single
processor (MatCreateSeqBAIJ) to a matrix contained in all processors?
As a little bit of context, I have a code in which only one processor
creates a matrix and a vector for a linear system of equations. Then we
want to use a parallel solver to get the solution and give it back to a
single processor
I tried MatView to create a binary file and MatLoad to load the matrix
in parallel. This seems to work but performance is significantly
decreased independent of the number of processors used.
I have some questions:
Can I share the matrix without having to write it to a file, for
example, through a buffer?
Is there a way to efficiently avoid the overhead of writing, reading
loading matrices to and from processors?
Thanks for your comments,
Hector
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*Hector Barrios*
PhD Student, Graduate Research Assistant
Hildebrand Department of Petroleum and Geosystems Engineering
The University of Texas at Austin
[email protected] <mailto:[email protected]>
