Re: [SIESTA-L] AlN Geometry optimization

2010-08-30 Por tôpico Pavan K. Pillalamarri
Chris, Thanks for pointing out the error, it works fine now. Pavan. --- On Mon, 8/30/10, Christopher Rowan wrote: From: Christopher Rowan Subject: Re: [SIESTA-L] AlN Geometry optimization To: siesta-l@uam.es Date: Monday, August 30, 2010, 2:50 PM Pavan, Even after the first CG the forces a

Re: [SIESTA-L] Sudden memory increase on Efield calculations

2010-08-30 Por tôpico Alexander Vozny
Salvador, There was a similar reported problem about memory increase very recently, and it was considered a bug and I think the rc2 addressed that issue. Try searching the archives. Adding electric field is a very simple subroutine which simply adds a value to VH at every grid point. So this

[SIESTA-L] Sudden memory increase on Efield calculations

2010-08-30 Por tôpico Barraza-lopez, Salvador
Dear users and developers, I want to comment on a sudden memory increase we observe in slab calculations with electric field. We are running calculations on a slab with 800 atoms, on a ~30x30x20 Ang^3 unit cell, so it is decidedly large. The energy cutoff is 300 Ry. The memory used is about

Re: [SIESTA-L] AlN Geometry optimization

2010-08-30 Por tôpico Christopher Rowan
Pavan, Even after the first CG the forces are too high. There is something wrong with your starting geometry. Two of your lattice vectors are the same, and it looks like the program is assigning its own lattice parameters to your system. Chris On 30 August 2010 12:39, Pavan K. Pillalamarri wrote