OpenSAF Beta 1.0.9 (Default branch)


 
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Old 05-15-2008
OpenSAF Beta 1.0.9 (Default branch)

ImageThe Open Service Availability Framework (OpenSAF) is designed to work in a loosely coupled computer system with fast interconnections between the nodes. An application using OpenSAF could provide ?five nines? (99.999 %) availability without re-inventing availability techniques. It provides mechanisms to replicate data between nodes, so that in case of failure the services can be started on a different node with the same state. It monitors itself for hardware and software failures, can keep several service instances running (with different availability models), and can automatically restart and migrate services to satisfy the availability requirements. It is based on the standard defined at saforum.org. It includes an availability management framework, a message service, a lock service, an event service, a checkpoint service, and much more.License: GNU Lesser General Public License (LGPL)Changes:
SAF LOG Service A.02.01 was added.Image

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OMPI_CRCP(7)							     Open MPI							      OMPI_CRCP(7)

NAME
OMPI_CRCP - Open MPI MCA Checkpoint/Restart Coordination Protocol (CRCP) Framework: Overview of Open MPI's CRCP framework, and selected modules. Open MPI 1.4.5 DESCRIPTION
The CRCP Framework is used by Open MPI for the encapsulation of various Checkpoint/Restart Coordination Protocols (e.g., Coordinated, Unco- ordinated, Message/Communication Induced, ...). GENERAL PROCESS REQUIREMENTS
In order for a process to use the Open MPI CRCP components it must adhear to a few programmatic requirements. First, the program must call MPI_INIT early in its execution. The program must call MPI_FINALIZE before termination. A user may initiate a checkpoint of a parallel application by using the ompi-checkpoint(1) and ompi-restart(1) commands. AVAILABLE COMPONENTS
Open MPI currently ships with one CRCP component: coord. The following MCA parameters apply to all components: crcp_base_verbose Set the verbosity level for all components. Default is 0, or silent except on error. coord CRCP Component The coord component implements a Coordinated Checkpoint/Restart Coordination Protocol similar to the one implemented in LAM/MPI. The coord component has the following MCA parameters: crcp_coord_priority The component's priority to use when selecting the most appropriate component for a run. crcp_coord_verbose Set the verbosity level for this component. Default is 0, or silent except on error. none CRCP Component The none component simply selects no CRCP component. All of the CRCP function calls return immediately with ORTE_SUCCESS. This component is the last component to be selected by default. This means that if another component is available, and the none component was not explicity requested then Open MPI will attempt to activate all of the available components before falling back to this component. SEE ALSO
ompi-checkpoint(1), ompi-restart(1), opal-checkpoint(1), opal-restart(1), orte_snapc(7), orte_filem(7), opal_crs(7) 1.4.5 Feb 10, 2012 OMPI_CRCP(7)