examples: Deallocate leaked arrays

SF: Add note that user must free iremote from GetGraph in Fortran

Fix item list in manpages of XXXViewFromOptions

prototype for ViewFromOptions macro-->functions

Add an option -sf_use_pinned_buffer to use non-pagable host memory for send/recv buffer when passing GPU data

Log transfer between CPU and GPU

Fix a performance bug

Clarify a comment

Rename rkey, lkey to rootdata, leafdata

Support data on device but no gpu-aware MPI for sf(all)gather(v)

Fix a typo: selfbuflen should be in terms of <unit>

Renamed PetscSFPackWaitall_Basic to PetscSFPackWaitall

Support "pack on GPU, do MPI on CPU" for SF Neighbor

Add option that lets users do packing on GPU and do MPI on CPU

PetscFind{Int,MPIInt,Real}: Check in debug mode whether input array is sorted.

* Add PetscSorted macro.
* Add PetscSorted{Int,MPIInt,Real} functions using it.
* Use it in ISGetInfo_Sorted.
*

PetscFind{Int,MPIInt,Real}: Check in debug mode whether input array is sorted.

* Add PetscSorted macro.
* Add PetscSorted{Int,MPIInt,Real} functions using it.
* Use it in ISGetInfo_Sorted.
* Add PetscCheckSorted debug mode macro using it.
* Use it in PetscFind{Int,MPIInt,Real}.

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Merge branch 'maint'

Spelling: Destory -> Destroy

Commit-type: style-fix

Replace PetscInt with PetscMPIInt when returning a rank

Merge branch 'tisaac/feature-is-info' into 'master'

Tisaac/feature is info

See merge request petsc/petsc!2185

Doc: Fix function doc

ISInvertPermutation: only duplicate if matching distribution

IS: documentation updates for ISGetInfo() and ISSetInfo()

ISSetIdentity: change permanence semantics to match what was before

If you called ISSetIdentity() before, it would set is->isidentity = PETSC_TRUE.
If you called ISIdentity, if is->isidentity was se

ISSetIdentity: change permanence semantics to match what was before

If you called ISSetIdentity() before, it would set is->isidentity = PETSC_TRUE.
If you called ISIdentity, if is->isidentity was set it would return PETSC_TRUE,
and would only call is->ops->identity if is->isidentity was PETSC_FALSE.
So ISSetIdentity() should have permanence and ISGetIdentity() should have
recomputation

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IS: remove old property tracking in data structure and ops

Use ISSetInfo in ISSetPermutation and ISSetIdentity