Thank you,
let me clarify my question.
Imagine that I have a sparse matrix, and the number of non zero entries
that I specified is too small.
I know that I can insert values in it but it will be slow.
I remember there was a way to make PETSC to throw an error if a number
of non zero elements per row was bigger that was preallocated. Then I
could fix my algorithm. Is this functionality available with the current
version?
Michael.
On 7/11/2024 3:55 PM, Barry Smith wrote:
MatGetInfo() is the programmatic interface used to get this
information. You can also run a proggram with -info and grep for malloc.
Barry
On Jul 11, 2024, at 1:55 PM, Michael Povolotskyi <mpovo...@gmail.com>
wrote:
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Hello,
is there an option in PETSC that allows to check at run time if a sparse
matrix has been preallocated correctly? I remember there was something
like that is the older versions, but cannot find it now.
The goal is to get rid of any possible time overhead due to dynamic
preallocation.
Thank you,
Michael.
