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4.2 Startup
4.2.3 Phase 3:
Step
Description
Processes start and enter
MPI_Init
mpisubmon starts all processes to be run on the host where it is running.
Processes synchronize
When the processes have received all control information they will signal
mpimon that they are ready to run. mpimon will then send a start running message to all processes.
Processes return from
MPI_Init and start running.
User program takes control.
Table 4-4: Startup phase 3
mpimon
mpisubmon
mpisubmon
mpisubmon
process
process
process
process
process
process
process
process
process
process
process
process
process
process
process
process
process
process
Host
Host
Host
Figure 4-3: Startup phase 3
ScaMPI User’s Guide Version 1.9.0
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