-----Original message-----
From: Ludwig, Stephan <[email protected]>
Sent: Wednesday 9th September 2015 17:36
To: [email protected]
Subject: [SIESTA-L] optical calculations: severe (174): SIGSEGV, segmentation 
fault occurred

 

Hi,



I'm working with Siesta on a cluster so far everything went fine, scf 
calculations, relaxations, bandstructures...

But now I try to calculate the absorption of an organic salt (a solid with 236 
atoms in a unit-cell). The scf convergence is reached and the programm wants to 
start the optical calculations. But it does not succeed. I receive the 
following error-message:



Optical: Polarization type = polycrystal
Optical: Minimum of energy range = 0.0000 Ry
Optical: Maximum of energy range = 10.0000 Ry
Optical: Gaussian broadening = 0.0000 Ry
Optical: Scissor operator = 0.0000 Ry
Optical: Number of bands = 480
Optical: Number of electrons = 870
Optical: BZ mesh dimensions = 4 8 8
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source $
siesta 00000000005F66AA Unknown Unknown Unknown
siesta 00000000005E702F Unknown Unknown Unknown
siesta 000000000080457C Unknown Unknown Unknown
siesta 0000000000491E2C Unknown Unknown Unknown
libc.so.6 0000003096E1ED5D Unknown Unknown Unknown
siesta 0000000000491D29 Unknown Unknown Unknown



etc.



The last block is repeated for all the ten procs I try to use.

I use ten procs on a single fat node (pmem=32000mb).



Can anybody tell me whats wrong?



Thanks and regards



Stephan Ludwig

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