doc: seperate -> separate

Add the possibility of writing HDF5 data in single precision

This commit adds the possibility for the user, at run-time,
select to write single precision data into the HDF5 file.
This is useful in m

Add the possibility of writing HDF5 data in single precision

This commit adds the possibility for the user, at run-time,
select to write single precision data into the HDF5 file.
This is useful in many cases, as one often stop the (iterative)
solver when an approximate answer is found, thus not utilizing
full double precision. Using single precision for IO can then
save you half the disk space (or give you the possibility of
writeing twice the amount of data on the same space).

The HDF5 library takes care of the type conversion, hence the
required changes to the IO routines are very small.

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updated PETSc directory layout to match standard packaging strategies

include/petsc finclude,private,mpiuni
lib/petsc conf
bin/petsc*

Merge branch 'knepley/feature-viewer-partial-read'

* knepley/feature-viewer-partial-read:
Viewer: Fixed initialization
TS: Updated example to new interface
Plex: Fix compiler warning
Viewer:

Merge branch 'knepley/feature-viewer-partial-read'

* knepley/feature-viewer-partial-read:
Viewer: Fixed initialization
TS: Updated example to new interface
Plex: Fix compiler warning
Viewer: Now ViewerRead() takes an extra argument to return the number of items read - An error is thrown for insufficient data unless the extra argument is non-NULL
Viewer: Fixes for new Read interface - Fixed example - Fixed Fortran 90 binding - Fixed type
Builder: Allow a local dictionary for run parameters
Viewer: PetscViewerRead() should return the number of items actually read - This also applies to all its implementations

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Viewer: Fixed initialization

Viewer: Now ViewerRead() takes an extra argument to return the number of items read
- An error is thrown for insufficient data unless the extra argument is non-NULL

Viewer: Fixes for new Read interface
- Fixed example
- Fixed Fortran 90 binding
- Fixed type

PETSc Vecs with a bs of 1, coming from a generic VecCreate() or DMCreateGlobalVector() with a DMDA
will NOT have an extra dimension attached to them in HDF5 files created with VecView() with HDF5 vie

PETSc Vecs with a bs of 1, coming from a generic VecCreate() or DMCreateGlobalVector() with a DMDA
will NOT have an extra dimension attached to them in HDF5 files created with VecView() with HDF5 viewers,
to have that extra dimension even if the bs is on use either PetscViewerHDF5SetBaseDimension2() or
-viewer_hdf5_base_dimension2. Similarly to handle VecLoad() you need to set this value in the viewer if the
file has the extra dimension

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Viewer: PetscViewerRead() should return the number of items actually read
- This also applies to all its implementations

fix memory leak from use of PetscFixSlashN() and reformat usage

trivial format fixes

MatLoad_ and VecLoad_ routines that use options database information from the binary file .info files need to PetscViewerSetUp() before accessing the options database because the "lazy" setup of bina

MatLoad_ and VecLoad_ routines that use options database information from the binary file .info files need to PetscViewerSetUp() before accessing the options database because the "lazy" setup of binary viewers defered the opening of the files until binary reading was first done which was after the calls to determine matrix and vector block sizes.

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Merge branch 'knepley/fix-mpiio-flag'

Merge branch 'barry/saws-options-merge-master'

PetscViewerBinaryGetDescriptor() is now a collective and must be treated as such
fixed some calls to PetscViewerBinarySetUseMPIIO()
removed some test runs that take too long

removed unused variables, removed dead code from AMS

Merge branch 'pr258/dmay/dmay/PetscViewerBinaryRefactor/master'