|
|
Open MPI's version numbers are the union of several different values:
major, minor, release, and an optional quantifier.
- Major: The major number is the first integer in
the version string (e.g., v1.2.3). Changes in the major number
typically indicate a significant change in the code base and/or
end-user functionality. The major number is always included
in the version number.
- Minor: The minor number is the second integer in
the version string (e.g., v1.2.3). Changes in the minor number
typically indicate a incremental change in the code base and/or
end-user functionality. The minor number is always included
in the version number. Starting with Open MPI v1.3.0, the minor
release number took on additional significance (see this
wiki page for more details):
- Even minor release numbers are part of "super-stable"
release series (e.g., v1.4.0). Releases in super stable
series are well-tested, time-tested, and mature. Such releases are
recomended for production sites. Changes between subsequent releases
in super stable series are expected to be fairly small.
- Odd minor release numbers are part of "feature" release
series (e.g., 1.3.7).
Releases in feature releases are well-tested, but they are not necessarily
time-tested or as mature as super stable releases. Changes between
subsequent releases in feature series may be large.
- Release: The release number is the third integer
in the version string (e.g., v1.2.3). Changes in the release number
typically indicate a bug fix in the code base and/or end-user
functionality. If the release number is 0, it is omitted from the
version number (e.g., v1.2 has a release number of 0).
- Quantifier: Open MPI version numbers sometimes
have an arbitrary string affixed to the end of the version number.
Common strings include:
- aX: Indicates an alpha release. X is an integer
indicating the number of the alpha release (e.g., v1.2.3a5 indicates the 5th alpha release
of version 1.2.3).
- bX: Indicates a beta release. X is an integer
indicating the number of the beta release (e.g., v1.2.3b3 indicates the 3rd beta release of
version 1.2.3).
- rcX: Indicates a release candidate. X is an
integer indicating the number of the release candidate (e.g.,
v1.2.3rc4 indicates the 4th
release candidate of version 1.2.3).
- rV or hgV: Indicates the
Subversion / Mercurial repository number string that the release was
made from (V is usually an integer for Subversion releases
and usually a string for Mercurial releases). Although all
official Open MPI releases are tied to a single, specific Subversion
or Mercurial repository number (which can be obtained from the
ompi_info command), only some releases have the
Subversion / Mercurial repository number in the version number.
Development snapshot tarballs, for example, have the Subversion
repository included in the version to reflect that they are a
development snapshot of an upcoming release (e.g., v1.2.3r1234 indicates a development
snapshot of version 1.2.3 corresponding to Subversion repository
number 1234).
Quantifiers may be mixed together -- for example v1.2.3rc7r2345 indicates a development
snapshot of an upcoming 7th release candidate for version 1.2.3
corresponding to Subversion repository number 2345.
|
|
|
![[Flag]](../../../community/mirrors/flag-thailand.gif){kind=small}