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ParallelExecutionMode Enumeration

The query execution mode is a hint that specifies how the system should handle performance trade-offs when parallelizing queries.

Namespace:  System.Linq
Assembly:  System.Core (in System.Core.dll)

public enum ParallelExecutionMode

Member nameDescription
DefaultThis is the default setting. PLINQ will examine the query's structure and will only parallelize the query if will likely result in speedup. If the query structure indicates that speedup is not likely to be obtained, then PLINQ will execute the query as an ordinary LINQ to Objects query.
ForceParallelismParallelize the entire query, even if that means using high-overhead algorithms. Use this flag in cases where you know that parallel execution of the query will result in speedup, but PLINQ in the Default mode would execute it as sequential.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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