Bit manipulation in fortran

[fish830911]

Thanks to your testing, I think I figured out the solution to my problem. Somehow it is not fast enough

I think I have to try out equivalence and reshape to see which way of bit manipulation is the fastest.

Speed test: equivalence vs. transfer vs. reshape

Hello everyone, For my first post, I thought I’d post the results of a small experiment I ran today and ask for some help interpreting the results. Due to the nature of the project I’m working on, I’ve been spending a fair bit of time reshaping arrays. I’m doing it enough that I thought I’d figure out if I could spend less time reshaping arrays so I thought I’d compare three ways of changing the data access topology: the reshape() intrinsic, the transfer() intrinsic, and the equivalence statem…