Really slow direct unformatted output under MS Windows:(

[Delbert Franz]

On Wednesday 09 November 2011, Tobias Burnus wrote:
> Dear Delbert,
> 
> Delbert Franz wrote:
> > I did find some recent activity on the mailing list about release
> > 4.7.0 and slow I/O.  Perhaps the issue is under active review.
> 
> 
> Depending on your program, the cause could be also a different one such 
> that the update might not help for this specific problem. If the problem 
> still occurs with 4.6.2 or 4.7, we are very interested in details and/or 
> a sample program.
> 
> Tobias
> 
> 

Dear Tobias,

Thanks for the prompt response.  I found version 4.6.2 and it does 
indeed fix almost all of the I/O differences.  It is still about 15% 
faster then the old f95 compiler from Lahey when not writing the 
large file  and only a few seconds slower when writing the large file. 
If version 4.7.0 makes further improvements, gfortran may leave 
f95 from Lahey in the dust:)  It is, of course, some years old,
but with such capable tools from gcc, why upgrade?


               Delbert