Add PETSc example areaplex (#394)


Update bps files with new subfolders structure

* Add header h and okl files

* Update REAMDE.md

Update benchmarks/README.md (#345)

QFunction Create by Name (#311)

This PR adds a QFunction gallery to libCEED with 1D, 2D, and 3D mass and Poisson operators.

Closes issue #37, issue #340

* Add QFunction gallery, rename focca

QFunction Create by Name (#311)

This PR adds a QFunction gallery to libCEED with 1D, 2D, and 3D mass and Poisson operators.

Closes issue #37, issue #340

* Add QFunction gallery, rename focca

* Gallery - add initial QFunctions

* Add a test for using the QF gallery

* Modify ex1 to use gallery

* Add multiple test configs to tap

* Move output to test directory

* Update junit

* Add OCCA galley exception

* Add ex2

* Update ex2 for dim->ncompx

* Gallery - modify to work for CUDA as is

* Update Documentation

* Gallery - typo fix

* Gallery - convention change, postappend qfunction family variant

* Gallery - update template with new name checking convention

* Gallery - condense diff3DBuild QFunction

* Gallery - rename diff -> poisson

* Gallery - clarify poisson3DBuild comment

* Gallery - use Pragma SIMD, store Qdata in Voigt convention

* Examples - Convert BP3-6 to Voigt convention

* Examples - add cl option to switch between header and gallery qfs in CEED examples

* Examples - clean up construction of QF name

* Gallery - Switch to PascalCase for gallery names

* Doc - fix function type page

* Interface - Make sure strncpy result is null terminated

* Gallery - Update Poisson 2/3D Apply to new QF body

* make style

* make style - fix worst style problems

* make style - add gallery to make style

* Doc - update documentation errors and inconsistencies

* Examples - test ex1 ex2 with and without gallary

* Examples - reduce testing of ex1/ex2 without gallery, clean up non-gallery qfunctions

* MFEM - revert another make style mistake

* Manual make style updates

* Doc - update function documentation page

* Style updates, document test numbering conventions

* doc: resolve ambiguous image location warning, allow more Dot nodes

* Tests - style and cast cleanup

* Tests - fix README indentation

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Documentation Typo Fixes (#321)

* Basis - fix typo in doc

* Ceed - fix typo in doc

* Operator - fix typo in doc

* QFunction - fix typo in doc

* Ceed.h - fix typos in doc

* Ref - fix t

Documentation Typo Fixes (#321)

* Basis - fix typo in doc

* Ceed - fix typo in doc

* Operator - fix typo in doc

* QFunction - fix typo in doc

* Ceed.h - fix typos in doc

* Ref - fix typos in doc

* Blocked - fix typos in doc

* READMEs - typo fixes

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Merge branch 'master' into yohann/cuda-restr-opt

Conflicts:
backends/cuda-reg/ceed-cuda-reg-restriction.c
backends/cuda-shared/ceed-cuda-shared-basis.c

Merge pull request #278 from CEED/petsc-bp-docfix

PETSc BP Docfix

Update Benchmark documentation

Benchmarking (#187)

* Add make benchmarks

* Various tweaks related to the benchmarks.

* In Makefile:
* target 'all' now builds the library, all tests and examples
* the old 'all' target is n

Benchmarking (#187)

* Add make benchmarks

* Various tweaks related to the benchmarks.

* In Makefile:
* target 'all' now builds the library, all tests and examples
* the old 'all' target is now called 'par'
* the target 'examples' will build also the MFEM and PETSc examples if
the respective library is available.

In the benchmarks/ directory:
* remove 'config.sh'
* cleanup unused stuff from 'benchmark.sh'.

* Fix postprocess scripts, convert to Python 3

* Small update in README.md

* Set benchmark cg its max, update gitignore

* Minor makefile fix

* In Makefile, add 'par' to the list of phony targets.

* In benchmarks/postprocess-table.py, sort the table by backend first.

* Small update in examples/petsc/Makefile - add a comment that
PETSC_ARCH can be undefined/empty, e.g. when using PETSc installed
through Spack.

* In Makefile, update the benchmarking targets:
* add separate targets for individual tests: `bench-petsc-bp1`,
`bench-petsc-bp3`, etc
* `make benchmarks` runs all defined benchmarks.

Update README.md to reflect the above changes.

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