[gmx-developers] Mdrun still not working on em64t cpus

[David]

On Wed, 2005-04-13 at 21:42 +0200, Haberl Florian wrote:
> Hi all,
> 
> again i tried new cvs version on em64t cpus, compiling works with gcc 3.4.4.
> 
> after starting mdrun it says:
> 
> 
> In md.log 64bit support is known
> 
> Configuring nonbonded kernels...
> Testing x86_64 SSE support... present.
> 
> but than it crashed without any further error
> 
> Reading file topol.tpr, VERSION 3.3_beta_20050202 (single precision)
> starting mdrun 'LYSOZYME (E.C.3.2.1.17) in water'
> 5000 steps,     20.0 ps.
> 
> p0_29121:  p4_error: interrupt SIGSEGV: 11
> 
> even if i run it on one cpu and compiling without mpi support
> 
> 
> Same binary works without any probs and in 64 bit on (quad) opterons.
> 
> I think you will need some further information about this system, please
> write me, if you need some more information.
> 
>  gcc --version
> gcc-3.4 (GCC) 3.4.4 20041113 (prerelease) (Debian 3.4.3-0.1.ql.w)
> 
> mpich/gnu-64 standard
> 
Where does it crash? Try running it in the debugger. 

An alternative is to compile on a 32 bit system.


> Greetings,
> 
> Florian
> 
> ------------------------------------------------------------------------
>  Florian Haberl              Universitaet Erlangen/Nuernberg
>  Computer-Chemie-Centrum     Naegelsbachstr. 25, D-91052 Erlangen
> 
>  Mailto: florian.haberl AT chemie.uni-erlangen.de
> 
> ------------------------------------------------------------------------
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-- 
David.
________________________________________________________________________
David van der Spoel, PhD, Assoc. Prof., Molecular Biophysics group,
Dept. of Cell and Molecular Biology, Uppsala University.
Husargatan 3, Box 596,          75124 Uppsala, Sweden
phone:  46 18 471 4205          fax: 46 18 511 755
spoel at xray.bmc.uu.se    spoel at gromacs.org   http://xray.bmc.uu.se/~spoel
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