Fix a bug: selfbuflen is in <unit>

Move PetscCUBLASGetErrorName from vec to sys for --with-single-library=0 --with-visibility=1

Ref: https://gitlab.com/petsc/petsc/merge_requests/2282

Merge branch 'maint'

Fix visibility issues with CUDA

- VecSet_SeqCUDA() called from densecuda.cu
- PetscCUBLASInitializedHandle() should be declared PETSC_EXTERN

Merge branch 'jose/fix-fortran-interface' into 'master'

Fix Fortran interface that messed up with CAPS vs !UNDERSCORE

See merge request petsc/petsc!2283

Merge remote-tracking branch 'origin/maint'

examples: Deallocate leaked arrays

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

fix directory name in makefile https://gitlab.com/petsc/petsc/issues/489

Fix item list in manpages of XXXViewFromOptions

prototype for ViewFromOptions macro-->functions

Merge branch 'maint'

Use existing memory in fftw vec when doing VecLoad_HDF5 to avoid memory leak and double-free

Reported-by: Sajid Ali <sajidsyed2021@u.northwestern.edu>

Merge branch 'haplav/feature-petscsortedint' into 'master'

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

See merge request petsc/petsc!2248

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

Add GPU tests for sf(all)gather(v)

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

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

Add VecSetFromOptions when creating new vectors

Renamed PetscSFPackWaitall_Basic to PetscSFPackWaitall

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