Hi Micheal, Can you run SFP2000 under both, 32-bit linux and 64-bit on the same machine, or show results published by others? If you can, please, do so, and then I'll go back and see what was wrong in my compilation and also people can see that this is very likely just a temporary issue with Gaussian and PGI. Best wishes, Ödön On Mon, 2004-02-02 at 12:13, Michael Matz wrote:
Hi,
This was not my first time compiling Gaussian and even the "compatibility" mode (PGI 32-bit) runs cca. 8% faster then the 64-bit compiled one.
I realize this, and it's not good. That's why Andreas asked for code exhibiting this in order for us to be able to fix it (if it's in GCC, not PGI), because it's not a general problem. Without such we can't do much about it, except stating that this is not true in general and that this should not be the base of advice for people looking at AMD64 to use it under an 32 bit OS.
Ciao, Micha.