Utilization of Cache on DSP

Hello everyone,

I am using VISION SDK 2.11.

for(i =0 ;i < 450;i++)

{

for(j =0; j<1800;j++)

{

 dest[i*1800*3+j] = src[i*1800*3+j]*arr[j];

}

}

How to utilize Cache for above code.

Please guide me and provide example for same.

Best Regards,

Poonam