Intel® Advisor Help
Metric |
Description |
Interpretation |
---|---|---|
|
Instruction accesses the same memory from iteration to iteration. |
Uniform stride pattern represents the ideal situation and does not require any improvements. |
|
Instruction accesses memory that consistently changes by one element from iteration to iteration. |
Unit stride pattern (just like uniform) represents the ideal situation and does not require any improvements. |
|
Instruction accesses memory that consistently changes by N elements (N>1) from iteration to iteration. |
With the constant stride, your code uses more memory than in ideal case, and requires more cache lines. Consider studying recommendations on AOS/SOA optimization. |
|
Instruction accesses memory addresses that change by an unpredictable number of elements from iteration to iteration. |
Memory access is irregular, which might limit vectorization or even make it impossible. |
|
Advisor detected for v(p)gather* instructions on AVX2 Instruction Set Architecture. |
This is the case where compiler vectorized the code with irregular memory access pattern. Consider improving the code to use more constant memory access pattern. |