calculate number of operations in this algorithm   #include #include #include #include const char* dgemv_desc = "OpenMP dgemv."; /*  * This routine performs a dgemv operation  * Y :=  A * X + Y  * where A is n-by-n matrix stored in row-major format, and X and Y are n by 1 vectors.  * On exit, A and X maintain their input values.  */ 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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