[lammps-users] memory error

Hi

My job which was running absolutely fine, got interrupted with the following error:

ERROR on proc 4: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 26: Failed to allocate 2098053632 bytes for array neigh:binhead

[26] [MPI Abort by user] Aborting Program!

Exit code -3 signaled from i126-107.ranger.tacc.utexas.edu

Killing remote processes…ERROR on proc 40: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 38: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 34: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 33: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 44: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 43: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 46: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 37: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 39: Failed to allocate 2098053632 bytes for array neigh:binhead

ERROR on proc 45: Failed to allocate 2098053632 bytes for array neigh:binhead

[40] [MPI Abort by user] Aborting Program!

[38] [MPI Abort by user] Aborting Program!

[34] [MPI Abort by user] Aborting Program!

[33] [MPI Abort by user] Aborting Program!

[43] [MPI Abort by user] Aborting Program!

[44] [MPI Abort by user] Aborting Program!

[46] [MPI Abort by user] Aborting Program!

[37] [MPI Abort by user] Aborting Program!

[39] [MPI Abort by user] Aborting Program!

[45] [MPI Abort by user] Aborting Program!

ERROR on proc 85: Failed to allocate 2098053632 by

NOW, LAMMPS MANUAL SAYS THAT LAMMPS MUST BE RUNNING OUT OF MEMORY. But I am running system of 5594 atom on 96 processors ….i feel I already have quite a lot of memory or speed.

So why it must be happening ? is it a cluster issue that I am operating on?

Thanks

Chetan