Parallel processing refers to:Group of answer choicesThe simultaneous execution of multiple tasks or processesA single processor executing multiple tasksThe use of multi-threadingRunning one program at a time
Question
Parallel processing refers to:Group of answer choicesThe simultaneous execution of multiple tasks or processesA single processor executing multiple tasksThe use of multi-threadingRunning one program at a time
Solution
Parallel processing refers to the simultaneous execution of multiple tasks or processes. This means that multiple tasks are being processed at the same time. This is often done by dividing a larger task into smaller tasks that can be processed simultaneously. This is different from a single processor executing multiple tasks, which would involve the tasks being processed one after the other, not simultaneously. It's also different from the use of multi-threading, which involves multiple threads of a single process being executed at the same time. Finally, it's different from running one program at a time, which would not involve any parallel processing.
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Nella gestione dei thread, individua tra le seguenti affermazioni quali possono essere considerate come svantaggi:Scegli una o più alternative:a. non è possibile sfruttare il parallelismo fisico in architetture multiprocessore per thread generati dallo stesso processo dato che sono “interni al processo stesso” e quindi assegnati a uno specifico processoreb. se un thread effettua una system call, per esempio per motivi di I/O, oltre che a sospendere se stesso provoca la sospensione del processo che lo ha generato e quindi anche di tutti gli altri thread sempre generati dallo stesso processoc. Elevate prestazioni nell'implementazione di elaborazioni concorrentid. La condivisione è automaticamente garantita poiché tutti i thread condividono la memoria del processo cui appartengono
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