Hi All,

I'm having trouble getting an optical calculation to run.  I keep
getting the following error message after the computed dipole in my
output file:

siesta: Electric dipole (a.u.)  =   15.828428   10.716906    1.729590
siesta: Electric dipole (Debye) =   40.231879   27.239676    4.396182

bm_list_25179: (11993.044935) wakeup_slave: unable to interrupt slave
0 pid 25178
p1_25212:  p4_error: net_recv read:  probable EOF on socket: 1
rm_l_1_25213: (11992.807211) net_send: could not write to fd=5, errno = 32
p2_25246:  p4_error: net_recv read:  probable EOF on socket: 1
rm_l_2_25247: (11992.571881) net_send: could not write to fd=5, errno = 32
p2_25246: (11994.573904) net_send: could not write to fd=5, errno = 32

I've been through the archives and feel that I've specified all that
is necessary:

OpticalCalculation .true.
Optical.NumberOfBands All bands # default
Optical.Scissor 0 eV # default 0, increase to increase underestimated bandgap
Optical.Broaden 0.1 eV
Optical.EnergyMinimum 0 eV
Optical.EnergyMaximum 20 eV
%block Optical.Mesh
  2  2  2
%endblock Optical.Mesh
Optical.PolarizationType polarized # options: polarized, unpolarized,
polycrystal
%block Optical.Vector # for polarized and unpolarized
 1.0  0.0  0.0
%endblock OpticalVector

My system is 165 atoms, and I've had no problems geometry optimizing
with an MD CG run.  I've tried this on another computer as well but
still have the same problem, usually using 4 nodes.

Any idea what's going wrong?
Chris Rowan

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