Merge branch 'pcfieldsplit_mr' into 'main'

Added `PCMatApply()` to `PCFIELDSPLIT` and `MatDenseScatter_Private()`

See merge request petsc/petsc!8986

PCFIELDSPLIT: add PCMatApply() implementation

Merge branch 'zach/add-petsccallhypre' into 'main'

Add PetscCallHYPRE to properly handle and display HYPRE error codes

See merge request petsc/petsc!8790

hypre: Add PetscCallHYPRE macro to allow for printing HYPRE error strings

Merge branch 'lindad/hypre-control-through-pmat' into 'main'

Change hypre PC option defaults based on hypre matrix memory location

See merge request petsc/petsc!8505

Change hypre PC option defaults based on hypre matrix memory location

Merge branch 'jolivet/rm-explicit-empty-output_file' into 'main'

Remove 535 empty .out and consolidate the use of output/empty.out

See merge request petsc/petsc!8538

Remove explicitly listed empty files and switch to output/empty.out

Merge branch 'jolivet/feature-pcshellsetmatapplytranspose' into 'main'

PCSHELL: add PCShellSetMatApplyTranspose()

See merge request petsc/petsc!8535

PCSHELL: add PCShellSetMatApplyTranspose()

Merge branch 'jolivet/feature-pcmatapplytranspose' into 'main'

PC: add PCMatApplyTranspose()

See merge request petsc/petsc!8322

PC: add PCMatApplyTranspose()

Merge branch 'tisaac/feature-log-handler' into 'main'

Deglobalize logging into PetscLogHandler and PetscLogState

See merge request petsc/petsc!6709

Profiling: Switch logging over to the new PetscLogHandler infrastructure

- Move data structures only needed by the default logger now (Action,
Object) to logdefault.c

- Create petsclogdeprecated.

Profiling: Switch logging over to the new PetscLogHandler infrastructure

- Move data structures only needed by the default logger now (Action,
Object) to logdefault.c

- Create petsclogdeprecated.h and petsc/private/logimpldeprecated.h
for publicly visible symbols that are now deprecated. Yes,
lots of symbols in petsc/private/logimpl.h were not only visible
but had docstrings.

- The macros PetscLogEventBegin(), PetscLogEventEnd(),
PetscLogEventSync(), PetscLogObjectCreate(), and
PetscLogObjectDestroy() now looks through the log handlers
in PetscLogHandlers, sees if they have they appropriate
callbacks (Exposed in PetscLogHandlerHot), and calls them.
Up to 4 log handlers can run simultaneously.

- All queries about the registered things now go through
petsc_log_state.

- Output functions dispatch to the appropriate PetscLogHandler

- There is no need for xmllogevent.c, xmlviewer.c, eventlog.c,
classlog.c, and stagelog.c anymore. Some orphaned functions
(PetscLogSetThreshold(), PetscLogEventSetDof(),
PetscLogEventSetError(), PetscASend(), PetscARecv(), PetscAReduce())

- PetscFEOpenCLLogResidual() did some intrusive things related
to the old logging infrastruture: the private header
for the default log handler is now imported into feopencl.c
so that it can do equivalent things with the new infrastructure.

- PetscLogPauseCurrentEvent_Internal() is replaced with
PetscLogEventsPause()

Deprecated symbols include:

- All functions related to PetscStageLog and the resizable array structs
that it contained.

- The legacy EventBegin()/EventEnd() callbacks.

- PetscLogAllBegin(), which actually reported less information than
PetscLogDefaultBegin() because it was not kept up-to-date with
regards to GPU profiling.

show more ...

Profiling: Improve !defined(PETSC_USE_LOG) #defines

- If we cast macro arguments to void, we can avoid unused errors that have
forced lots of conditionally included code like this:

```c
#if def

Profiling: Improve !defined(PETSC_USE_LOG) #defines

- If we cast macro arguments to void, we can avoid unused errors that have
forced lots of conditionally included code like this:

```c
#if defined(PETSC_USE_LOG)
PetscLogEvent event;
#endif
```

- Having global counters like petsc_TotalFlops externed event
if !PetscDefined(USE_LOG) helps to remove a lot of needless
`#ifdef`s around code that can instead be placed in
`if (PetscDefined(USE_LOG)) {}` blocks.

show more ...

Merge branch 'jolivet/fix-ksp-tutorials-ex79' into 'main'

ksp_ksp_tutorials-ex79: missing conditional branch for MATAIJHIPSPARSE

See merge request petsc/petsc!6714

ksp_ksp_tutorials-ex79: missing conditional branch for MATAIJHIPSPARSE

Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/fix-ksp-tutorials-ex79' into 'release'

ksp_ksp_tutorials-ex79_9_hpddm: ensure that A is on device

See merge request petsc/petsc!6707

ksp_ksp_tutorials-ex79_9_hpddm: ensure that A is on device

Merge branch 'stefanozampini/mathypre' into 'main'

cleanup mathypre

See merge request petsc/petsc!6528

KSP tutorials: fix ex79

Merge remote-tracking branch 'origin/release'

Merge branch 'jolivet/fix-nested-log' into 'release'

Fix runtime error with nested logging and no event

See merge request petsc/petsc!6456

Fix examples with -log_view command line argument