It may be the "Disk full" or "No space left on device" message.
Try to monitor the amount of disk space left during the job..
[Use df for that]

At 03:58 PM 11/9/2002 -0500, you wrote:
>Hello,
> I am doing the geometry optimization for a surface. The surface
> contaion about 200 atoms. I met this error message in the output file:
>
> ===========================
> L I N E A R S C A L I N G
> ===========================
>
>
> Cut-off radii density fit: .1000000000E-07
> Overlap cut-off criterion AO matrix elements: .1000000000E-05
> Cut-offs for Coulomb potential and fitted density: .1000000000E-07
> Cut-off criterion for Coulomb multipole terms: .1000000000E-07
>
> Number of elements of the density matrix on this node (used,
> total): 687565 3949455
>
>
>*******************************************************************************
>
> ADF EXIT called
> CIO_ERROR cio_llwrite: write failed (TAPE21_0,fd=5,rec=3636)
>
>
>
>*******************************************************************************
>
>*******************************************************************************
>
> A D F E X I T
> pp info: terminating timer Orth.WriteEign
> pp info: terminating timer Orth.OrtIrrep
> pp info: terminating timer Orth.Orthonalt
> CIO_ERROR cio_llwrite: write failed (TAPE21_0,fd=5,rec=3636)
>
>
>
> Current Execution Stack has 3 elements
> Last to be Executed : ADF
>
> Stack of Active SubPrograms:
> ----------------------------
> ORTHON
> AMOL
> ADF
>
>
>Can anyone tell me what is wrong with it?
>
>Thanks a lot.
>
>Yinghua Shen

-----------------------------------------------------------------
dr. Marcel Swart

Organische en Anorganische Chemie
Faculteit der Exacte Wetenschappen
Vrije Universiteit Amsterdam
De Boelelaan 1083
1081 HV Amsterdam
The Netherlands

F +31-(0)20-4447488
E swart_at_chem.vu.nl
W http://go.to/m.swart
-------------------------------------------------------------------
Received on 2002-11-11 12:03:32