kupl_set_kernel_concurrency

Sets the global concurrency level of the memcpy kernel.

Interface Definition

void kupl_set_kernel_concurrency(int num);

Parameters

Parameter	Type	Description	Input/Output
num	int	Kernel concurrency value to be set Constraint: 1 ≤ num ≤ kupl_get_num_executors(). If the input is not within the constraint range, num is internally set to the value returned by kupl_get_num_executors().	Input

Parameter

Type

Description

Input/Output

num

int

Kernel concurrency value to be set

Constraint: 1 ≤ num ≤ kupl_get_num_executors(). If the input is not within the constraint range, num is internally set to the value returned by kupl_get_num_executors().

Input

Examples

#include <stdio.h> 
#include "kupl.h" 

int main() 
{ 
    kupl_set_kernel_concurrency(2); 
    int num = kupl_get_kernel_concurrency();
    printf("kupl kernel concurrency = %d\n", num); 
    return 0; 
}

The execution result is as follows:

kupl kernel concurrency = 2

The preceding example demonstrates how to set and print the global kernel concurrency value. The preceding kupl_set_kernel_concurrency function sets the kernel concurrency level to 2.
Alternatively, you can also specify the kernel concurrency level using the KUPL_KERNEL_CONCURRENCY environment variable instead of calling the kupl_set_kernel_concurrency API.

Parent topic: Memory Management Functions