Some cleaning (#400)

* Some cleaning

* PETSc - update gitignore

Add PETSc example areaplex (#394)


Update bps files with new subfolders structure

* Add header h and okl files

* Update REAMDE.md

Merge pull request #273 from CEED/p-multigrid

P Multigrid Example

Multigrid - combine multigrid and petsc example code for reuse

Merge pull request #302 from CEED/jeremy/dmplex

Create DMPlex PETSc BPs

Travis: Use PETSc master, commit 73f49a0

PETSc DMPlex BP1-6 working in unified code

Add PETSc BP2, BP4, BP5, BP6 (#243)

* Add PETSc BP2, BP4, BP5, BP6

* Documentation update

* Update make benchmark

* Minor changes

* Add PETSc bpData structure

* Update make benchmarks

Add PETSc BP2, BP4, BP5, BP6 (#243)

* Add PETSc BP2, BP4, BP5, BP6

* Documentation update

* Update make benchmark

* Minor changes

* Add PETSc bpData structure

* Update make benchmarks

* Benchmark - use default qextra

* Documentation fix

* Clean up PETSc bps.c, add benchmarking first run

* Drop -ksp_max_it from benchmarkscript

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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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Merge branch 'petsc-reorder' of github:ceed/libceed [PR #166]

* 'petsc-reorder' of github:ceed/libceed:
Fix PETSC BPs make ordering

Fix PETSC BPs make ordering

Merge branch 'jed/makefile-optflags' [PR #102]

* jed/makefile-optflags:
Makefile: use LINK.* for clearer output/less duplication
Makefile: add OPT for all-language opt/dbg flags

Makefile: add OPT for all-language opt/dbg flags

Merge branch 'jed/active-passive' [PR #41]

* jed/active-passive: (58 commits)
Remove spurious comments
Make style
[PETSc] Modify Makefile for abspath for .okl
[OCCA] PETSc bp1 works, but .ok

Merge branch 'jed/active-passive' [PR #41]

* jed/active-passive: (58 commits)
Remove spurious comments
Make style
[PETSc] Modify Makefile for abspath for .okl
[OCCA] PETSc bp1 works, but .okl error in prove-all
[OCCA] Fix qfunction not shifting output pointers
[OCCA] Replacing series of 'if's with switch
Modify Makefile to include ceed.pc for prove-all
Fix error in Makefile checking for MFEM_DIR
Update README.md
Update Tmpl to use highest priority /cpu/self
[OCCA] Rework switch statement for AllocOpOut and AllocOpIn
PETSc bp1: update okl kernels and extract ComputeErrorMax
Add CeedVectorGetLength
Occa: sync to host for passive fields
PETSc bp1: compute collocated error vector instead of reducing in kernel
Occa: copy OperatorApply output to "used" pointer
Add check for MFEM_DIR to Makefile
[OCCA]Add zeroing of outvecs
Further work on Nek5000 BPs, added error checking to OpApply
[NEK][WIP] Modifying BPs
...

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[PETSc] Modify Makefile for abspath for .okl

Merge branch 'master' into magma-dev

Merge branch 'master' of github.com:CEED/libCEED

Conflicts:
README.md

Merge branch 'unify-examples-plus' [PR #54]

* unify-examples-plus:
Remove kernel caching from the example/{ceed,mfem,petsc}/Makefiles.
In examples/{mfem,petsc}/Makefile:
Delete the OCCA_LIBS v

Merge branch 'unify-examples-plus' [PR #54]

* unify-examples-plus:
Remove kernel caching from the example/{ceed,mfem,petsc}/Makefiles.
In examples/{mfem,petsc}/Makefile:
Delete the OCCA_LIBS variable from the mfem examples building rule.
Some small tweaks and improvements in the MFEM and PETSc examples.

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Remove kernel caching from the example/{ceed,mfem,petsc}/Makefiles.

In README.md, add a paragraph about the kernel sources being installed.

Merge branch 'master' into magma-dev

Conflicts:
Makefile
tests/tap.sh

In examples/{mfem,petsc}/Makefile:

* support the use of 'make -B'
* prevent rebuilding due to okl-lib-cache dependency.

Reported-by: Jed Brown jed@jedbrown.org

Merge branch 'master' into run_nek_fix

Some small tweaks and improvements in the MFEM and PETSc examples.

Several small updates in the Nek scripts and documentations.

With these, I can run all libCEED examples with the /gpu/occa spec on my Linux
box!!

Merge branch 'master' into nek_gpu

Merge branch 'master' into nek5k_updates