- To enable the server to determine the maximum degree of parallelism, set this option to 0, the default value. Setting maximum degree of parallelism to 0 allows [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] to use all the available processors up to 64 processors. To suppress parallel plan generation, set **max degree of parallelism** to 1. Set the value to a number from 1 to 32,767 to specify the maximum number of processor cores that can be used by a single query execution. If a value greater than the number of available processors is specified, the actual number of available processors is used. If the computer has only one processor, the **max degree of parallelism** value is ignored.
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