OmpThreadNum

Set the number of concurrent OMP threads:
int32_t KVSIP_SetOmpThreadNum(int32_t num);

Obtain the current number of concurrent OMP threads:
int32_t KVSIP_GetOmpThreadNum(void);

Parameters

Parameter	Description	Value Range	Input/Output
num	Maximum number of threads	> 0	Input

Return Value

KVSIP_SetOmpThreadNum:

Success: The value 0 is returned.
Failure: The value -1 is returned.

KVSIP_GetOmpThreadNum:

The number of OMP threads is returned.

Example

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include "kvsip.h"
#include "vsip.h"
#include "vsip_type.h"

void OmpThreadNumExample()
{
    int32_t originNum = KVSIP_GetOmpThreadNum();
    printf("KVSIP_GetOmpThreadNum originNum = %d\n", originNum);
    const int32_t num = 0x7;
    int32_t ret = KVSIP_SetOmpThreadNum(num);
    int32_t newNum = KVSIP_GetOmpThreadNum();
    printf("KVSIP_SetOmpThreadNum result = %d, newNum = %d\n", ret, newNum);
    int32_t resumeRet = KVSIP_SetOmpThreadNum(originNum);
    int32_t lastNum = KVSIP_GetOmpThreadNum();
    printf("resume omp resumeRet = %d, lastNum = %d\n", resumeRet, lastNum);
}

int main(void) {
    OmpThreadNumExample();
    return 0;
}

Output:

KVSIP_GetOmpThreadNum originNum = 1
KVSIP_SetOmpThreadNum result = 0, newNum = 7
resume omp resumeRet = 0, lastNum = 1

Parent topic: Basic Functions