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Communication with Shared Memory.
In the shared memory configuration, it is not necessary to use
message passing to move information from one module to another since
memory is globally accessible. In the few cases where the user would
ordinarily have to pass information using message passing, it is
easiest and most efficient to simply copy the information to the new
location. This copying gets done in the send function and hence
the receive function is never actually called. This means that
the user must perform all necessary initialization, etc. in the send
function. This makes it a little confusing to write source code which
will work for all configurations. However, the confusion should be
minimized by looking at the sample applications, especially the VRP solver,
which works in all configurations, sequential, distributed parallel, and
shared parallel.
Ted Ralphs
2003-10-16