How different is concurrent from parallel in computer science concepts? I got similar doubt on difference between function and method which I was able to understand from my critiques comments. This doubt arose when Prof Tony Giavargis explained in his Software for embedded systems class that ‘Concurrent is an illusion of being parallel’. How far is this true, how far are they different?
Can concurrency be achieved using a single processor(share resources) whereas parallel processing requires at least two processors(independent resources)? Does this mean multithreading/multitasking is an extended concept of concurrency while distributed processing is derived from parallel processing? Is concurrency subset of Parallel processing? Is there any better way to distinguish them? What are the objectives met by adopting them - is it high availability & speed? Both involve communication cost for synchronization and aggregation of results, former acquires less communication overhead than later, but doesn't guarantee the same level of speed as later. Does this play a crucial role in deciding which one should be used?
Please share your opinion in the comments section below, if possible with example.
Reference: http://www.linux-mag.com/id/7411/
Can concurrency be achieved using a single processor(share resources) whereas parallel processing requires at least two processors(independent resources)? Does this mean multithreading/multitasking is an extended concept of concurrency while distributed processing is derived from parallel processing? Is concurrency subset of Parallel processing? Is there any better way to distinguish them? What are the objectives met by adopting them - is it high availability & speed? Both involve communication cost for synchronization and aggregation of results, former acquires less communication overhead than later, but doesn't guarantee the same level of speed as later. Does this play a crucial role in deciding which one should be used?
Please share your opinion in the comments section below, if possible with example.
Reference: http://www.linux-mag.com/id/7411/
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