Remove all double blank lines from source

Commit-type: petsc-style
/2h

Merge branch 'jacobf/2021-03-26/clang-static-linter' into 'main'

Feature: libClang PETSc Macro Static Analyzer

See merge request petsc/petsc!3773

Linter using libClang that checks PetscValidHeaderSpecifcType, PetscValidHeaderSpecific, PetscValidHeader, PetscValid[XXX]Pointer, PetscValidType, PetscCheckSameComm, PetscValidLogicalCollectiveXXX f

Linter using libClang that checks PetscValidHeaderSpecifcType, PetscValidHeaderSpecific, PetscValidHeader, PetscValid[XXX]Pointer, PetscValidType, PetscCheckSameComm, PetscValidLogicalCollectiveXXX for validity. Automatically generates diff files for problems with a known solution.

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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 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 'barry/2020-08-13/matsetvalues-nopreallocation-seqaij' into 'master'

Added MatSeqAIJSetTotalPreallocation() allows efficiently building a SeqAIJ...

See merge request petsc/petsc!3065

Added MatSeqAIJSetTotalPreallocation() allows efficiently building a SeqAIJ matrix row by row without
preallocating each row instead just provide an upper bound on the entire memory needed.

Commit-t

Added MatSeqAIJSetTotalPreallocation() allows efficiently building a SeqAIJ matrix row by row without
preallocating each row instead just provide an upper bound on the entire memory needed.

Commit-type: optimization
/spend 4h
Reported-by: Sajid Ali <sajidsyed2021@u.northwestern.edu>

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Merge branch 'dalcinl/fix-null' into 'master'

Fix 0 -> NULL for pointers

See merge request petsc/petsc!3086

DM: Replace 0 -> NULL for pointers

Merge branch 'stefanozampini/fix-dm-composition' into 'master'

Fix DM composition with work vectors and matrices

See merge request petsc/petsc!2551

DMDA: remove dead code

minor style changes

Merge branch 'rmills/bindtocpu-not-pintocpu' into 'master'

Changed XXXPinToCPU() to XXXBindToCPU() to prevent confusion.

See merge request petsc/petsc!2477

Changed XXXPinToCPU() to XXXBindToCPU() to prevent confusion.

The reason for this change is that we already use the terminology
"pinned" to refer to memory that is non-pageable, in the context of
Pe

Changed XXXPinToCPU() to XXXBindToCPU() to prevent confusion.

The reason for this change is that we already use the terminology
"pinned" to refer to memory that is non-pageable, in the context of
PetscSF as well as allocating host memory when GPUs are being employed.

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Merge branch 'barry/no-batch-script'

No more batch submission script; this is all due to a very smart idea of Lisandro Dalcin

*) removed or fixed all remaining --know-xx options that required a batch submission script
*) removed all de

No more batch submission script; this is all due to a very smart idea of Lisandro Dalcin

*) removed or fixed all remaining --know-xx options that required a batch submission script
*) removed all details of --known-size-- that are no longer needed
*) cleaned up BAIJMKL source code, made it work with the rest of PETSc and removed is
dependence on a batch submission script, added test case for BAIJMKL
*) update the installation guide on batsch submissions and OpenMP
*) print MKL version, print OpenMP usage with mkl_sparse options

Commit-type: bug-fix, portability-fix, style-fix, feature, documentation, example
Thanks-to: Lisandro Dalcin <dalcinl@gmail.com>

$ ./configure --with-batch
===============================================================================
Configuring PETSc to compile on your system
===============================================================================
=============================================================================== ***** WARNING: Cannot determine if MPI_INT64_T works on your system in batch-mode! Assuming it does work. Run with --known-mpi-int64_t=0 if you know it does not work (very unlikely). Run with --known-mpi-int64_t=1 to remove this warning message. warning message ***** =============================================================================== =============================================================================== ***** WARNING: Cannot determine if MPI_C_DOUBLE_COMPLEX works on your system in batch-mode! Assuming it does work. Run with --known-mpi-c-double-complex=0 if you know it does not work (very unlikely). Run with --known-mpi-c-double-complex=1 to remove this warning message. warning message ***** =============================================================================== =============================================================================== ***** WARNING: Cannot verify that MPI is a shared library - in batch-mode! If MPI is a static library but linked into multiple shared libraries that the application uses, sometimes compiles work - but one might get run-time errors. If you know that the MPI library is shared - run with --known-mpi-shared-libraries=1 option to remove this warning message ***** =============================================================================== =============================================================================== ***** WARNING: Cannot determine if BLAS/LAPACK uses 32 bit or 64 bit integers in batch-mode! Assuming 32 bit integers. Run with --known-64-bit-blas-indices if you know they are 64 bit. Run with --known-64-bit-blas-indices=0 to remove this warning message. warning message ***** ===============================================================================

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Merged in barry/optimize-aij-da (pull request #1762)

Non-numeric optimizations focused on AIJ, MatFDColoring, and DMCreateMatrix_DA_*AIJ, looking to improve performance in GPU environments

Non-numeric optimizations focused on AIJ, MatFDColoring, and DMCreateMatrix_DA_*AIJ, looking to improve performance in GPU environments

1) PetscCalloc*() now uses system calloc()
2) Merged some Pets

Non-numeric optimizations focused on AIJ, MatFDColoring, and DMCreateMatrix_DA_*AIJ, looking to improve performance in GPU environments

1) PetscCalloc*() now uses system calloc()
2) Merged some PetscMalloc*()
3) Eliminated unneeded PetscCalloc*()
4) Removed some memory allocations and copies in MatFDColoringSetUp(), added local variables for better compiler optimization
5) Added MatSetValues_SeqAIJ_SortedFull(), added MatSetOption(MAT_SORTED_FULL)
6) Optimized DMCreateMatrix_DA_*AIJ for nonperiodic case to automatically have sorted columns (faster MatSetValues() times)
7) Eliminated call to PetscMemzero() in PetscFree()

Commit-type: style-fix, feature

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Merged in barry/rm-section-da (pull request #1807)

Remove Section code from DMDA

Remove Section code from DMDA

Commit-type: cleanup

Merge remote-tracking branch 'origin/barry/add-petscarrayxxx-ops' [PR #1771]

Add PetscArraycmp(), PetscArraycpy(), PetscArrayzero(), PetscArraymove(), update code to use new forms

Replace a couple multi-mallocs with a single malloc
Replace backwards loops in MatSetValues_*()

Add PetscArraycmp(), PetscArraycpy(), PetscArrayzero(), PetscArraymove(), update code to use new forms

Replace a couple multi-mallocs with a single malloc
Replace backwards loops in MatSetValues_*() with PetscArraymove()

Commit-type: style-fix, feature

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Merged in barry/update-collective-on (pull request #1744)

Update the use of Collective on in the manual pages to reflect the new style