Why the method of communication used in DS is message passing and not shared memory ?
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$\begingroup$ How do you propose to share memory between nodes in a distributed system? $\endgroup$– tangrsOct 27 '20 at 1:55
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$\begingroup$ @tangrs For example , we can select one main node to have this shared memory and the other nodes can communicate via this shared memory ? $\endgroup$– John adamsOct 27 '20 at 10:01
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$\begingroup$ How would the other nodes access this shared memory? $\endgroup$– tangrsOct 28 '20 at 12:39
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Because in a distributed system, nodes do not have access to shared memory that is shared between all nodes. Shared memory is only typically feasible when the nodes are on a common memory bus, e.g., for multiple core within a parallel processing machine.
