Introduction
pmode lets you work interactively with a parallel job running
simultaneously on several labs. Commands you type at the pmode prompt
in the Parallel Command Window are executed on all labs at the same
time. Each lab executes the commands in its own workspace on its own
variables.
The way the labs remain synchronized is that each lab becomes
idle when it completes a command or statement, waiting until all the
labs working on this job have completed the same statement. Only when
all the labs are idle, do they then proceed together to the next pmode
command.
In contrast to spmd, pmode provides a desktop
with a display for each lab running the job, where you can enter commands,
see results, access each lab's workspace, etc. What pmode does not
let you do is to freely interleave serial and parallel work, like spmd does.
When you exit your pmode session, its job is effectively destroyed,
and all information and data on the labs is lost. Starting another
pmode session always begins from a clean state.
 | Interactive Parallel Computation with pmode | | Getting Started with pmode |  |
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