JIT vs vectorization
显示 更早的评论
Is there a reference for general rules for when vectorization is faster than the JIT?
I actually prefer to use for loops. I believe it makes my code more transparent. Months later it is much easier to figure out what a loop is doing than an intricate vectorized statement.
Is JIT as fast as vectorization for loops (when the code in the loop is acceptable for the JIT)?
Thanks, Ariel
回答（1 个）
Matt Fig
2011-3-2
1 个投票
JIT is just as fast as vectorization,... sometimes.
There is no published guide for using JIT because TMW doesn't want you to write code specifically for the JIT accelerator.
The two best tips that I know of for making loops as quick as possible:
- Pre-allocate arrays.
- Move repeated code to outer loops or completely outside if possible.
For plenty of examples, search CSSM.
类别
在 帮助中心 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息
2011-3-2
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
