Binary-IO: Various fixes and enhancements

* Add missing error checking
* Reorganize and remove duplicated code for easier maintenance
* Fix STDIO with FILE_MODE_READ to open files only in process ze

Binary-IO: Various fixes and enhancements

* Add missing error checking
* Reorganize and remove duplicated code for easier maintenance
* Fix STDIO with FILE_MODE_READ to open files only in process zero
* Fix MPIIO subviewers to synchronize the file on Get/Restore

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Merge branch 'dalcinl/binary-io' into 'master'

Binary IO Enhancements

See merge request petsc/petsc!2594

PETSCVIEWERBINARY: Add PetscViewerBinary{Read|Write}All()

* Abstract out MPI-IO vs stdio in a single collective call

PetscBinaryWrite: Remove `istemp` boolean flag

PETSCVIEWERBINARY: PetscViewerView() now prints file mode and stdio/mpiio

Merge branch 'dalcinl/mpi-io' into 'master'

MPI-IO Enhancements

See merge request petsc/petsc!2587

PETSCVIEWERBINARY: Various fixes and enhancements

* MPI-IO support for FILE_MODE_APPEND (write at end of file)
* PetscViewerBinaryWriteReadMPIIO() now does IO only in rank zero
* PetscViewerBinaryAd

PETSCVIEWERBINARY: Various fixes and enhancements

* MPI-IO support for FILE_MODE_APPEND (write at end of file)
* PetscViewerBinaryWriteReadMPIIO() now does IO only in rank zero
* PetscViewerBinaryAddMPIIOOffset() is now logically collective
* Fix PetscViewerSetFromOptions() to print current option values
* Add missing error checking in set/get routines

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MPI-IO: Use explicit offsets for {IS|Vec}{View/Load} binary

Merge branch 'jolivet/fix-more-typos' into 'master'

Fix more typos and add missing examples

See merge request petsc/petsc!2511

Fix more typos and add missing examples

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

Sys: Replace 0 -> NULL for pointers

See merge request petsc/petsc!2482

Sys: Replace 0 -> NULL for pointers

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

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

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

Commit-type: style-fix, documentation
Thanks-to: Patrick Sanan <patrick.sanan@gmail.com>

Merge remote-tracking branch 'origin/psanan/docs-remove-manconcepts' [PR #1733]

Man pages: remove Concepts: fields

These fields were previously stripped from the man pages by logic removed in
21a59cba2737d49dc2f0bd12c08db0d2a3f3f209

Remove these fields from all man pages (but

Man pages: remove Concepts: fields

These fields were previously stripped from the man pages by logic removed in
21a59cba2737d49dc2f0bd12c08db0d2a3f3f209

Remove these fields from all man pages (but not from examples).

This is accomplished with GNU sed (gsed on OS X), with the following commands.
*Warning* that this type of command can corrupt a .git directory,
so be cautious in reusing or modifying these commands. They first look
for and delete matching lines with a following line consisting of only whitespace,
and then delete any remaining matching lines.

find src -type f -not -path "*/examples/*" -not -name "*.html" -not -name "*.bib" -exec gsed -i '/Concepts:/ {N; /\n\s*$/d}' {} +
find src -type f -not -path "*/examples/*" -not -name "*.html" -not -name "*.bib" -exec gsed -i '/Concepts:/d' {} +
find include -type f -not -path "*/examples/*" -not -name "*.html" -not -name "*.bib" -exec gsed -i '/Concepts:/ {N; /\n\s*$/d}' {} +
find include -type f -not -path "*/examples/*" -not -name "*.html" -not -name "*.bib" -exec gsed -i '/Concepts:/d' {} +

Hints on the sed command obtained from: https://unix.stackexchange.com/questions/100754/how-to-delete-a-specific-line-and-the-following-blank-line-using-gnu-sed

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Merged in dalcinl/fix-io-gmsh (pull request #1660)

Binary I/O And Gmsh DMPlex Reader

Approved-by: Matthew Knepley <knepley@gmail.com>
Approved-by: BarryFSmith <bsmith@mcs.anl.gov>

Binary I/O: Various fixes and enhancements

* Change PetscBinary[Synchronized]Read() to allow for reading
items up to EOF without erroring
* Fix PetscViewerBinaryRead() to properly return the numbe

Binary I/O: Various fixes and enhancements

* Change PetscBinary[Synchronized]Read() to allow for reading
items up to EOF without erroring
* Fix PetscViewerBinaryRead() to properly return the number of items read
* Fix PetscViewerRead() to prevent infinite loops at EOF
* Various fixes for PetscDataType PETSC_COMPLEX

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Merged in barry/minor-getsubviewer-docs (pull request #1624)

Minor updates PetscViewerGetSubViewer(), error checking, docs

Approved-by: Václav Hapla <vaclav.hapla@erdw.ethz.ch>

Minor updates PetscViewerGetSubViewer(), error checking, docs

Commit-type: testing-fix, documentation

Merged in psanan/binvc-edited-online-with-bitbucket-1557316472858 (pull request #1639)

PetscViewerBinaryOpen man page: add dashes for list of options database keys

PetscViewerBinaryOpen man page: add dashes for list of options database keys

Merge remote-tracking branch 'origin/maint'

Merged in barry/fix-parallel-petscviewerasciiread/maint (pull request #1514)

Add error checking if PetscViewerASCIIRead() or PetscViewerASCIIGetPointer() are called from any but the 0th rank of the

Merged in barry/fix-parallel-petscviewerasciiread/maint (pull request #1514)

Add error checking if PetscViewerASCIIRead() or PetscViewerASCIIGetPointer() are called from any but the 0th rank of the PetscViewer.

Approved-by: Matthew Knepley <knepley@gmail.com>

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Add error checking if PetscViewerASCIIRead() is calledfrom any but the 0th rank of the PetscViewer.

Fix typos and explanation in manual pages for PETSc ASCII viewers

Commit-type: feature, documenta

Add error checking if PetscViewerASCIIRead() is calledfrom any but the 0th rank of the PetscViewer.

Fix typos and explanation in manual pages for PETSc ASCII viewers

Commit-type: feature, documentation
Reported-by: Yuyun Yang <yyang85@stanford.edu>

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