[gmx-users] Installing GROMACS on Windows

[Erik Lindahl]

Hi,

> I suppose that for code with assembly loops enabled compilers will 
> affect less the performance of code - am I right?
>

Yes. The compiler isn't even involed in the innerloops anymore, just 
the assembler program (which just translates each statement to object 
code), so 90% of the time should be spent in machine code that is 
independent of the compiler.

The MS assembler (MASM) doesn't understand SSE, but download the free 
NASM program and create output in win32 format. The assembly loops are 
written to work equally well with both GNU as and NASM.

Cheers,

Erik