configure: use appropriate path notation for DATAFILESPATH on Windows with MS/Intel compilers

Fix unknown escape sequence: '\040'

Delete unused PETSC_HAVE_BACKACC

configure: Obey --with-make-dir, improve make-related output.

* Print full path to make in the final configure overview.
* Print full path to make in the configure's "make hint" if make was download

configure: Obey --with-make-dir, improve make-related output.

* Print full path to make in the final configure overview.
* Print full path to make in the configure's "make hint" if make was downloaded/explicitly specified, and is not in PATH.
* Print full path to make in the "make all" output.
* Print the make hint even if configure is otherwise skipped (state has not changed).
* Check downloaded make as well.
* Minor error handling/messaging improvements.

show more ...

configure: Print --with-single-library setting.

* print capital S in "Shared libraries:"
* simplify handling of --with-shared-libraries
* remove redundant semicolons in Configure.py

Fix #688

Enable HIP and SYCL configuration

This adds support for HIP and SYCL configuration.

HIP is both a compiler (hipcc) and a package to be searched for
(hipblas, hipsparse) similar to CUDA.
Language:

Enable HIP and SYCL configuration

This adds support for HIP and SYCL configuration.

HIP is both a compiler (hipcc) and a package to be searched for
(hipblas, hipsparse) similar to CUDA.
Language: HIP; Compiler: HIPCC (even though it is C++)

SYCL is currently implemented for searching only the dpcpp compiler.
Because Intel's oneAPI is very similar to MKL, Blas/Lapack is handled by
those packages.
Language: SYCL; Compiler: SYCLCXX

Although it is a C++ compiler, both hipcc and dpcpp are very slow.
Currently using the .hip.cpp and .sycl.cxx extensions although more work
will be needed for testings. See the kokkos work.

This includes preliminary changes for pipeline testing
The HIP_PLATFORM is an environment variable that chooses the backend.
So one configuration file, but the platform is specified in
.gitlab-ci.yml.

This includes beta versions of configuration files for what could be used on
Frontier. This is both the HIP version and CUDA versions for enabling
comparisons.

show more ...

Merge remote-tracking branch 'origin/maint'

Change IS_COLORING_MAX and MPIU_COLORING_VALUE

Merge remote-tracking branch 'origin/maint'

configure: avoid decimal part when printing integer size

Print
Integer size: 4 bytes
instead of
Integer size: 4.0 bytes

Bug fix for initialization of _trapmode on Linux and MacOS when exception handling of divide by zero is enabled

Cleanup and extension of floating point exception handling.
Now properly turns

Bug fix for initialization of _trapmode on Linux and MacOS when exception handling of divide by zero is enabled

Cleanup and extension of floating point exception handling.
Now properly turns off floating point trapping for Lapack when Fortran linker turns on divide by zero trapping

Commit-type: error-checking, bug-fix, portability-fix, feature, documentation
Reported-by: Sanjay Govindjee <s_g@berkeley.edu>

show more ...

config: modernize DumpPkgconfig

pkg-config: switch to lowercase convention

Lowercase petsc.pc (versus PETSc.pc) is a more common convention.
We'll keep the uppercase variant (on filesystems that support it) for
backward compatibil

pkg-config: switch to lowercase convention

Lowercase petsc.pc (versus PETSc.pc) is a more common convention.
We'll keep the uppercase variant (on filesystems that support it) for
backward compatibility, but recommend using petsc.pc in new code.

show more ...

show info about prefix in configure output

configure: normalize PETSC_DIR path provided by user - to avoid double '//' in PATH. This can trip some tests like PetscArchMPICheck()

Reported-by: "Hyman, Jeffrey De'Haven" <jhyman@lanl.gov>

Merge branch 'balay/fix-wingw-dll/maint' into 'maint'

mingw: automatically use -Dpetsc_EXPORTS flag when building shared libraries

See merge request petsc/petsc!2753

mingw: automatically use -Dpetsc_EXPORTS flag when building shared libraries

Ref: https://gitlab.com/petsc/petsc/-/issues/611