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reorder sections in developer guide

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Axel Kohlmeyer
2020-10-14 22:57:41 -04:00
parent d41cce7660
commit 937f8b3f61
2 changed files with 22 additions and 22 deletions
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doc/src/Developer_utils.rst
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@ -172,27 +172,6 @@ Customized standard functions
---------------------------
Communication buffer coding with *ubuf*
---------------------------------------
LAMMPS uses communication buffers where it collects data from various
class instances and then exchanges the data with neighboring sub-domains.
For simplicity those buffers are defined as ``double`` buffers and
used for doubles and integer numbers. This presents a unique problem
when 64-bit integers are used. While the storage needed for a ``double``
is also 64-bit, it cannot be used by a simple assignment. To get around
that limitation, LAMMPS uses the :cpp:union:`ubuf <LAMMPS_NS::ubuf>`
union. It is used in the various "pack" and "unpack" functions in the
LAMMPS classes to store and retrieve integers that may be 64-bit from
the communication buffers.
---------------------------
.. doxygenunion:: LAMMPS_NS::ubuf
:project: progguide
---------------------------
Tokenizer classes
-----------------
@ -482,3 +461,24 @@ Tohoku University (under MIT license)
.. doxygenfunction:: MathEigen::jacobi3(double const mat[3][3], double *eval, double evec[3][3])
:project: progguide
---------------------------
Communication buffer coding with *ubuf*
---------------------------------------
LAMMPS uses communication buffers where it collects data from various
class instances and then exchanges the data with neighboring sub-domains.
For simplicity those buffers are defined as ``double`` buffers and
used for doubles and integer numbers. This presents a unique problem
when 64-bit integers are used. While the storage needed for a ``double``
is also 64-bit, it cannot be used by a simple assignment. To get around
that limitation, LAMMPS uses the :cpp:union:`ubuf <LAMMPS_NS::ubuf>`
union. It is used in the various "pack" and "unpack" functions in the
LAMMPS classes to store and retrieve integers that may be 64-bit from
the communication buffers.
---------------------------
.. doxygenunion:: LAMMPS_NS::ubuf
:project: progguide