Re: [Fastlibnt-devel] ssfft progress report

[David H. <dmh...@ma...>]

OK, well the G5 profile just finished and I'm still awake, and I'll  
simply say that the compiler flags well and truly made the problem go  
away.

The flags slow down the old code a bit (hmm a little strange), and  
speed up the new code a lot. The new code with the flags is  
significantly faster than the old code with or without the flags,  
across all regimes being profiled. So in other words, it looks like  
the new code is highly susceptible to these kinds of optimisations,  
and the old code doesn't seem to be, actually it seems to suffer a bit.

I'm going to make a note in todo.txt to remind us to put these flags  
into the makefile for the G5 architecture, whenever we get around to  
writing a proper build script.

Bill you are a star. Thanks very much.

david