[gmx-users] Simulation problem

[stranger at xter.net]

Hi,

I'm trying to EM a SDS bilayer.
It seems everything is correct, however the mdrun exits with the
following error:

Getting Loaded...
Reading file topol.tpr, VERSION 3.2.1 (single precision)
Fatal error: calloc for ilist->iatoms (nelem=-1073805064, elsize=4, file tpxio.c, line 712): Cannot allocate memory

What this could mean?
  
Thanks,
Grigor