Merge branch 'scott/hip-petscsf' into 'master'

Scott/hip petscsf

See merge request petsc/petsc!3503

Fix bugs when doing device to host communication

Merge branch 'stefanozampini/gamg-gpu-setup' into 'master'

MatMat operations with CUSPARSE

See merge request petsc/petsc!3391

PetscSF: the MultiSF of a MultiSF is itself

Knowing this allows to skip some expensive optimization in PetscSFSetUpPackFields
There may be other places where the knowledge of being a MultiSF can be

PetscSF: the MultiSF of a MultiSF is itself

Knowing this allows to skip some expensive optimization in PetscSFSetUpPackFields
There may be other places where the knowledge of being a MultiSF can be exploited

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Merge branch 'barry/2020-10-08/fix-mpi-error-codes' into 'master'

Convert MPI error type to PETSc error with string message for all MPI calls

See merge request petsc/petsc!3326

Convert MPI error type to PETSc error with string message for all MPI calls

Now PETSc examples will ONLY return PETSc error codes and never MPI error codes directly so we can understand and post-pro

Convert MPI error type to PETSc error with string message for all MPI calls

Now PETSc examples will ONLY return PETSc error codes and never MPI error codes directly so we can understand and post-process their
errors better.

The test harness will now automatically retry tests that fail with MPI, this may help with Intel MPI that produces
seemingly random failures.

Commit-type: error-checking
/spend 30m

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Merge branch 'scott/hip-sys-vec' into 'master'

Implementation of HIP for sys and vec packages

See merge request petsc/petsc!3056

Implementation of HIP for sys and vec packages

This implements the vec functionality including tests.
In the sys level, we handle the initialization issues, but it is tested
at the vec level.

Works

Implementation of HIP for sys and vec packages

This implements the vec functionality including tests.
In the sys level, we handle the initialization issues, but it is tested
at the vec level.

Works with ROCm 3.9.

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Merge remote-tracking branch 'origin/release' into master

Merge branch 'jose/release/pgi-20.9-warnings' into 'release'

Fix warnings in NVIDIA compilers (formerly PGI)

See merge request petsc/petsc!3397

Fix warnings in NVIDIA compilers (formerly PGI): unreachable statement

Merge branch 'jczhang/change-VecGetArrayInPlace' into 'master'

Revise VecGetArray() and friends

See merge request petsc/petsc!3346

Extend PetscMemType to include PETSC_MEMTYPE_{CUDA,HIP}

Merge branch 'jczhang/mat-vec-kokkos' into 'master'

Add vec Kokkos and mat Kokkos

See merge request petsc/petsc!3219

SFKokkos: only supports the default stream

Merge branch 'jczhang/sf-kokkos' into 'master'

Feature: Add a Kokkos backend for PetscSF

See merge request petsc/petsc!3076

Implement sfcuda and sfkokkos as runtime options

Put more cuda related stuff to sfcuda.cu

Merge branch 'barry/2020-08-16/fix-source-formatting' into 'master'

Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

See merge request petsc/petsc

Merge branch 'barry/2020-08-16/fix-source-formatting' into 'master'

Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

See merge request petsc/petsc!3064

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Turn on checkbadSource test to generate an error when found; fix all source code that causes errors

Commit-type: portability-fix, testing-fix, style-fix, feature, maintainability
/spend 1.5h

Merge branch 'jed/defined-nocpp' into 'master'

PetscDefined: test whether a configuration macro is defined without #ifdef

See merge request petsc/petsc!157

PetscDefined: test whether a configuration macro is defined without #ifdef

This allows testing configuration macros from normal code, thus avoiding
unused variable warnings and allowing the compiler

PetscDefined: test whether a configuration macro is defined without #ifdef

This allows testing configuration macros from normal code, thus avoiding
unused variable warnings and allowing the compiler to check for syntax
errors throughout all alternatives. This uses C99-style variadic
macros with a second expansion to appease MSVC's non-conforming
implementation of variadic macros.

This trick was introduced by "comex" on Google+ in response to a
question posed by Linus Torvalds.
https://plus.google.com/+LinusTorvalds/posts/9gntjh57dXt

This technique (modulo MSVC support) was implemented in the Linux kernel by Paul Gortmaker:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=69349c2dc01c489eccaa4c472542c08e370c6d7e

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Merge branch 'maint'

Merge branch 'jczhang/fix-sf-device2host-sync' into 'maint'

Fix a bug in SF device to host synchronization

See merge request petsc/petsc!2688

SF: fix a bug in device to host synchronization