Sijie,
Generally to use hypre from PETSc you just use PETSc matrices and vectors
in your code and set the desired hypre solver with PC; you don't need to deal
with hypre matrices and vectors directly at all.
Barry
> On Feb 6, 2022, at 12:34 AM, Sijie Tang <sijietang1...@gmail.com> wrote:
>
> I make a mistake there is no hypre_ParCSRVector, that should be
> hypre_ParVector.
>
> Sijie
>
>> On Feb 5, 2022, at 21:53, Sijie Tang <sijietang1...@gmail.com
>> <mailto:sijietang1...@gmail.com>> wrote:
>>
>> Hi developer,
>>
>> I have many questions about he Matrix and Vector Format Convert between
>> PETSc and HYPRE, could you give me some answers or hints?
>>
>> Can I convert MATHYPRE (in PETSc) to hypre_ParCSRMatrix ( HYPRE ) use
>> function MatHYPREGetParCSR() (in PETSc) ?
>> for 2, or I should use MatHYPRE_IJMatrixCreate and MatHYPRE_IJMatrixCopy to
>> get hypre_IJMatrix, then hypre_IJMatrix convert to hypre_ParCSRMatrix ?
>> for the vector, I don't find any function can convert vector in PETSc to
>> hypre_ParCSRVector, Is there any function can do this work ?
>> But I find I can use VecHYPRE_IJVectorCreate and VecHYPRE_IJVectorCopy to
>> get hypre_IJVector, then hypre_IJVector convert to hypre_ParCSRVector?
>> Is there any function can convert the format back? like hypre_ParCSRMatrix
>> convert to MATHYPRE, and hypre_ParCSRVector convert to PETSc's vector?
>>
>> Thanks,
>> Sijie
>
