Introduction to performance optimization using Intel SW tools

What is critical code?

(Отметьте один правильный вариант ответа.)

Варианты ответа

wrong code

code executed more frequently(Верный ответ)

code, which is not proved to be correct

code, which could be deleted without any changes in results

undocumented code

Похожие вопросы

How many threads could enter the critical section at a time?

Is there any dependence in this code?

DO I=1,N  S1 A(I)=…  S2 …=A(I)END DO

Is there any dependence in this code?

DO I=1,N  S1 A(I+1) =F(I)  S2 F(I+1) = A(I)END DO

"Dead code" may be caused by

How data dependencies are used in the code generation?

Loop invariant code motion

Choose code fragments which are good for optimizing

What benefits would give correct code formatting?

Choose the correct statements for the code:

DO I=1,N  S1 A(I) = B(I) + 1   S2 B(I+1) = A(I) – 5END DO

Choose the code resulting to the loop peeling for:

p = 10; for (i=0; i<10; ++i) {     y[i] = x[i] + x[p];   p = i;}