NdisGroupMaxProcessorCount function (ndis.h)

The NdisGroupMaxProcessorCount function determines the maximum number of processors in a specified processor group.

Syntax

ULONG NdisGroupMaxProcessorCount(
  USHORT Group
);

Parameters

Group

A USHORT value that identifies a processor group in the local computer system.

Return value

NdisGroupMaxProcessorCount returns a ULONG value for the maximum number of processors that are included in the group that is specified in the Group parameter. The number of processors is a zero-based value.

If the Group parameter is ALL_PROCESSOR_GROUPS, NdisGroupMaxProcessorCount returns the maximum number of processors in the local computer.

Remarks

An NDIS driver might call the NdisGroupMaxProcessorCount function during initialization before it allocates resources.

Note NDIS 6.20 and later drivers should not use the NdisSystemProcessorCount function because it only returns the processor count for processor group 0.

The processor count can change at runtime on SKUs that support hot-add functionality for CPUs. To obtain an active processor count, call the NdisGroupActiveProcessorCount function.

Requirements

Requirement	Value
Minimum supported client	Supported in NDIS 6.20 and later.
Target Platform	Universal
Header	ndis.h (include Ndis.h)
Library	Ndis.lib
IRQL	Any level

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Last updated on 2024-02-22