ISSorted(): use ISGetInfo()

ISGetInfo/ISSetInfo test in fortran

is tests ex1f: use PETSC_ERR_PLIB

Output file updates

psort.c: initialize variable to silence compiler warning

PetscParallelSort: explicit (PetscBool) cast for c++

Apply suggestion to src/vec/is/utils/psort.c

fortran stub fixes for recent IS changes

ISGetInfo: added compute argument

If compute == PETSC_FALSE, assume the property is false if it is unknown

This also clarifies a difference between ISPermutation and ISIdentity:

ISIdentity called

ISGetInfo: added compute argument

If compute == PETSC_FALSE, assume the property is false if it is unknown

This also clarifies a difference between ISPermutation and ISIdentity:

ISIdentity called ops->identity if it was false, showing a willingness to compute,
whereas ISPermutation only checked ops->isperm, showing the opposite.

show more ...

ISGetInfo_Permutation: fix difference between global and local

ISGetIndicesCopy: fix size to local size

ISBlock: fix info implementations

idx is scaled by the block size, I didn't see that before

vec/is/is/examples/tests/ex1.c: reflect that ISPermutation / ISIdentity are global

IS: stop relying on ->isperm and ->isidentity

Make ISIdentity implemenatations global

remove raw ->isperm access in ISSortPemutation()

Added internal ISCopyInfo

Use PetscArraycpy so it will be valid if other properties are tracked

IS: stop using ->sorted, ->isperm, and ->isidentity in implementations

Apply suggestion to src/vec/is/is/impls/stride/stride.c

Apply suggestion to src/vec/is/is/impls/block/block.c

Apply suggestion to src/vec/is/is/impls/block/block.c

Implementing local property calculations for IS types where it benefits

For both stride and block, we could have specialized routines for global
properties if the parameters (step size, block size)

Implementing local property calculations for IS types where it benefits

For both stride and block, we could have specialized routines for global
properties if the parameters (step size, block size) were the same for
each process, but there is no guarantee for that right now.

show more ...

ISGetInfo(), ISSetInfo(): a unified interface for index set properties

This interface keeps track of local and global properties,
caches computed values of local properties (but not global propertie

ISGetInfo(), ISSetInfo(): a unified interface for index set properties

This interface keeps track of local and global properties,
caches computed values of local properties (but not global properties
that can be affected by other properties), and allows the user to
mark properties as permanent, which will survive changes to the indices
like ISGeneralSetIndices().

show more ...

Added PetscParallelSortInt(), PetscParallelSortedInt() and ISGetLayout()

This should be a moderately scalable default algorithm for sorting
a parallel list of integers with different desired input a

Added PetscParallelSortInt(), PetscParallelSortedInt() and ISGetLayout()

This should be a moderately scalable default algorithm for sorting
a parallel list of integers with different desired input and output
maps.

show more ...

Added test for global IS sorting