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calculate the number of memory bytes accessed by this program: void my_dgemv(int n, double* A, double* x, double* y) {    #pragma omp parallel    {       int nthreads = omp_get_num_threads();       int thread_id = omp_get_thread_num();       printf("Hello world: thread %d of %d checking in. \n", thread_id, nthreads);    }    // insert your dgemv code here. you may need to create additional parallel regions,

calculate the number of memory bytes accessed by this program: void my_dgemv(int n, double* A, double* x, double* y) {    #pragma omp parallel    {       int nthreads = omp_get_num_threads();       int thread_id = omp_get_thread_num();       printf("Hello world: thread %d of %d checking in. \n", thread_id, nthreads);    }    // insert your dgemv code here. you may need to create additional parallel regions,

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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calculate the number of memory bytes accessed by this program:

void my_dgemv(int n, double* A, double* x, double* y) {

   #pragma omp parallel
   {
      int nthreads = omp_get_num_threads();
      int thread_id = omp_get_thread_num();
      printf("Hello world: thread %d of %d checking in. \n", thread_id, nthreads);
   }

   // insert your dgemv code here. you may need to create additional parallel regions,
   // and you may want to comment out the above parallel code block that prints out
   // nthreads and thread_id so as to not taint your timings

   #pragma omp parallel for
   // insert your code here: implementation of basic matrix multiply
   for(int i = 0; i < n; i++) {
         #pragma omp parallel for
         for(int j = 0; j < n; j++) {
                y[i] += A[i * n + j] * x[j];
         }
   }

}
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