[gmx-developers] GROMACS 4.0.1 still broken on Bluegene

[Erik Lindahl]

On Nov 9, 2008, at 11:01 PM, Roland Schulz wrote:
>
> I'm not sure. But I think it is little bit different.
>
> Parameters with different types are not allowed to point to the same  
> memory.
> Parameters with the same types are allowed to point to the same  
> memory.
> Parameters with the same types declared restricted are not allowed  
> to point to the same memory.

You're probably right, and that makes it even more safe. We had to  
work a bit to fulfill this, in particular in cases where we (for good  
reasons, alignment manipulation) need to covert a pointer to a void,  
add to it, and then move it back to the pointer type (which the Intel  
compiler considered breaking aliasing rules).

Cheers,

Erik 
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