[R] ^ operation much slower in R 1.7.1 than in R 1.7.0 ???

[Patrick Connolly]

On Mon, 04-Aug-2003 at 09:28AM -0700, Thomas Lumley wrote:

|> On 4 Aug 2003, Peter Dalgaard BSA wrote:
|> 
|> >
|> > Hmm, on linux, I get approx 0.31 for the first example with 1.7.0,
|> > 1.7.1, r-patched, and r-devel. Similarly, I get 0.8 for the second ex.
|> > in all four cases.
|> >
|> 
|> I also  find a slowdown under Win2K.  Was there a compiler version change
|> with the Windows binary, perhaps?

In case anyone is interested.....


version
         _                
platform i686-pc-linux-gnu
arch     i686             
os       linux-gnu        
system   i686, linux-gnu  
status                    
major    1                
minor    7.1              
year     2003             
month    06               
day      16               
language R                


0.54 and 1.24

platform i686-pc-linux-gnu
arch     i686             
os       linux-gnu        
system   i686, linux-gnu  
status                    
major    1                
minor    7.0              
year     2003             
month    04               
day      16               
language R                

 0.55 and 1.13


Both are compiled using the maligned 

gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-113)

HTH


-- 
Patrick Connolly
HortResearch
Mt Albert
Auckland
New Zealand 
Ph: +64-9 815 4200 x 7188
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