[gmx-developers] BlueGene

[Roland Schulz]

Hi,

it seems that the blugene non-bonded kernel in the CVS version is
incomplete. E.g. the nb_kernel_bluegene_test_asm.h is missing as far as I
can see. The gromacs wiki for bluegene explains how to get the kernel
generated by mknb to work. Also on the mailinglist all the messages I found
about BlueGene were about mknb and not abou the bluegene specifik kernel.

Could it be that it is incomplete do one has to do somethng to generate
these files?

Roland

On Wed, Jul 30, 2008 at 11:45 AM, Berk Hess <hessb at mpip-mainz.mpg.de> wrote:

> Hi,
>
> Mathias Puetz from IBM wrote non-bonded kernels for BlueGene/L.
> I don't know if these are also used for BlueGene/P.
> If there are problems, he would be the person to contact.
>
> Berk.
>
>
> Roland Schulz wrote:
>
>> Hi,
>>
>> has someone looked at the non-bonded kernels for BlueGene/P? Based on the
>> assembler produced by the compiler, it does no SIMD, runs out of registers
>> and does unnecessary rounding.
>>
>> Are there plans for a PPC450 assembler kernel?
>>
>> Roland
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