dadca7da88
This merge adds Checkpoint/Restart support to Open MPI. The initial frameworks and components support a LAM/MPI-like implementation. This commit follows the risk assessment presented to the Open MPI core development group on Feb. 22, 2007. This commit closes trac:158 More details to follow. This commit was SVN r14051. The following SVN revisions from the original message are invalid or inconsistent and therefore were not cross-referenced: r13912 The following Trac tickets were found above: Ticket 158 --> https://svn.open-mpi.org/trac/ompi/ticket/158
94 строки
2.8 KiB
Groff
94 строки
2.8 KiB
Groff
.\"
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.\" Man page for OMPI's CRCP Functionality
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.\"
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.\" .TH name section center-footer left-footer center-header
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.TH OMPI_CRCP 7 "March 2007" "Open MPI" "OPEN MPI CRCP OVERVIEW"
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.\" **************************
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.\" Name Section
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.\" **************************
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.SH NAME
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.
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Open MPI MCA Checkpoint/Restart Coordination Protocol (CRCP) Framework \- Overview of Open MPI's CRCP
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framework, and selected modules.
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.
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.\" **************************
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.\" Description Section
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.\" **************************
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.SH DESCRIPTION
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.
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.PP
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The CRCP Framework is used by Open MPI for the encapsulation of various
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Checkpoint/Restart Coordination Protocols (e.g., Coordinated, Uncoordinated,
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Message/Communication Induced, ...).
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.
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.\" **************************
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.\" General Process Requirements Section
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.\" **************************
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.SH GENERAL PROCESS REQUIREMENTS
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.PP
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In order for a process to use the Open MPI CRCP components it must adhear to a
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few programmatic requirements.
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.PP
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First, the program must call \fIMPI_INIT\fR early in its execution.
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.PP
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The program must call \fIMPI_FINALIZE\fR before termination.
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.PP
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A user may initiate a checkpoint of a parallel application by using the
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ompi-checkpoint(1) and ompi-restart(1) commands.
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.
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.\" **********************************
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.\" Available Components Section
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.\" **********************************
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.SH AVAILABLE COMPONENTS
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.PP
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Open MPI currently ships with one CRCP component: \fIcoord\fR.
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.
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.PP
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The following MCA parameters apply to all components:
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.
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.TP 4
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crcp_base_verbose
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Set the verbosity level for all components. Default is 0, or silent except on error.
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.
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.\" Coord Component
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.\" ******************
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.SS coord CRCP Component
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.PP
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The \fIcoord\fR component implements a Coordinated Checkpoint/Restart
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Coordination Protocol similar to the one implemented in LAM/MPI.
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.
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.PP
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The \fIcoord\fR component has the following MCA parameters:
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.
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.TP 4
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crcp_coord_priority
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The component's priority to use when selecting the most appropriate component
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for a run.
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.
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.TP 4
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crcp_coord_verbose
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Set the verbosity level for this component. Default is 0, or silent except on
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error.
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.
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.\" Special 'none' option
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.\" ************************
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.SS none CRCP Component
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.PP
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The \fInone\fP component simply selects no CRCP component. All of the CRCP
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function calls return immediately with ORTE_SUCCESS.
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.
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.PP
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This component is the last component to be selected by default. This means that if
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another component is available, and the \fInone\fP component was not explicity
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requested then Open MPI will attempt to activate all of the available components
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before falling back to this component.
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.
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.\" **************************
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.\" See Also Section
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.\" **************************
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.
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.SH SEE ALSO
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ompi-checkpoint(1), ompi-restart(1), opal-checkpoint(1), opal-restart(1),
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orte_snapc(7), orte_filem(7), opal_crs(7)
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.
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