[petsc-users] MatMPIBAIJSetPreallocationCSR i and j indices

[Barry Smith]

   We can do all this, but how much effort do we really want to make for supporting these inconvenient "convenience routines"? 

   BTW: We should really label these function with

   Level: Recommended only for legacy applications being quickly ported to PETSc

    I really only want people who already have a working non-PETSc code that uses CSR directly already to use these routines so they can quickly try out PETSc, I never want someone writing fresh code or doing a large refactorization to EVER use these routines.

> On second thought, why don't we just document that
> MatMPIBAIJSetPreallocationCSR respects MAT_ROW_ORIENTED within each
> block and let the user choose which they want to use?

    Also there is no way to get this flag into MatCreateMPIBAIJWithArrays()


   Barry


On Sep 29, 2013, at 1:13 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> Jed Brown <jedbrown at mcs.anl.gov> writes:
> 
>> Barry Smith <bsmith at mcs.anl.gov> writes:
>> 
>>>  Fixed and accidentally pushed directly to maint at bitbucket
>> 
>> Should warn that this function permanently changes MAT_ROW_ORIENTED and
>> thus will affect subsequent calls to MatSetValues.  Or (better, in my
>> opinion) restore the original value of that option before returning.
> 
> On second thought, why don't we just document that
> MatMPIBAIJSetPreallocationCSR respects MAT_ROW_ORIENTED within each
> block and let the user choose which they want to use?