RT Set CPU Pool Assignments VI

Owning Palette: RT SMP CPU Utilities VIs

Requires: RT Module

Assigns CPUs to pools for automatic load balancing. This VI assigns CPUs to one of four possible states: System pool only, Timed Structures pool only, both pools, or no pool (reserved). This VI outputs the bit masks that specify the CPUs assigned to each pool.

Details  

	CPU pools specifies the pool assignments of each CPU in the system. This input is an array of enums. The enum contains the four possible states of a CPU and each element of the array represents a CPU. The array indices 0 - N correspond directly to the CPU indices 0 - N. Reserved Assigns the CPU to neither pool. The CPU is reserved for Timed Structures configured for manual processor assignment. System & Timed Structures Assigns the CPU to both the System pool and the Timed Structures pool for automatic load balancing of all threads that are not manually assigned to a particular CPU. System Assigns the CPU to the System pool for automatic load balancing of non-timed-structure threads. Timed Structures Assigns the CPU to the Timed Structures pool for automatic load balancing of timed structure threads.
	error in (no error) describes error conditions that occur before this node runs. This input provides standard error in functionality.
	assigned CPU pools returns the CPU pool assignments. Reserved The CPU is not assigned to a pool. The CPU is reserved for Timed Structures configured for manual processor assignment. System & Timed Structures The CPU is assigned to both the System pool and the Timed Structures pool for automatic load balancing of all threads that are not manually assigned to a particular CPU. System The CPU is assigned to the System pool for automatic load balancing of non-timed-structure threads. Timed Structures The CPU is assigned to the Timed Structures pool for automatic load balancing of timed structure threads.
	system mask returns a bit mask corresponding to System pool assignments.
	timed structures mask returns a bit mask corresponding to the Timed Structures pool assignments.
	error out contains error information. This output provides standard error out functionality.

RT Set CPU Pool Assignments Details

On an N-CPU system, the bits of the bit mask correspond to CPUs 0 through N-1. The right-most bit of each bit mask corresponds to CPU 0 and the left-most bit corresponds to CPU 31, if such a CPU exists in the system.

Refer to the Specifying the Set of CPUs Available for Automatic Load Balancing topic for more information about CPU pools.