[petsc-users] IS natural numbering to global numbering

[Barry Smith]

  You might be looking for https://petsc.org/release/manualpages/AO/AO/#ao


> On Jun 9, 2023, at 11:02 AM, Mark Adams <mfadams at lbl.gov> wrote:
> 
> An IS is just an array of integers. We need your context.
> Is this question for sparse matrices? If so look at the documentation on the AIJ matrix construction and the global vertex numbering system.
> 
> Mark
> 
> On Thu, Jun 8, 2023 at 1:15 PM YuSh Lo <ysjosh.lo at gmail.com <mailto:ysjosh.lo at gmail.com>> wrote:
>> Hi,
>> 
>> I have an IS that contains some vertex that is in natural numbering. How do I map them to global numbering without being distributed?
>> 
>> Thanks,
>> Josh

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