Electronic Structure Lab

General interests of the group are understanding the electronic structure of materials using density functional theory. The group works on software development, theory, and applications. Current interests include charge transfer excitations in donor acceptor complexes (organic photovolatics), linear and non linear polarizabilities of molecules.
JPCA Supplementary Cover: Study of Self-Interaction Errors in Density Functional Calculations of Magnetic Exchange Coupling Constants
General interests of the group are understanding the electronic structure of materials using density functional theory. The group works on software development, theory, and applications. Current interests include charge transfer excitations in donor acceptor complexes (organic photovolatics), linear and non linear polarizabilities of molecules.
Study of water polarizability (article published on J. Chem. Phys.)
General interests of the group are understanding the electronic structure of materials using density functional theory. The group works on software development, theory, and applications. Current interests include charge transfer excitations in donor acceptor complexes (organic photovolatics), linear and non linear polarizabilities of molecules.
Our LSIC project is on the US Dept. of Energy science highlights
General interests of the group are understanding the electronic structure of materials using density functional theory. The group works on software development, theory, and applications. Current interests include charge transfer excitations in donor acceptor complexes (organic photovolatics), linear and non linear polarizabilities of molecules.
Electronic structure research group team
General interests of the group are understanding the electronic structure of materials using density functional theory. The group works on software development, theory, and applications. Current interests include charge transfer excitations in donor acceptor complexes (organic photovolatics), linear and non linear polarizabilities of molecules.
Electronic structure research team (2020)
General interests of the group are understanding the electronic structure of materials using density functional theory. The group works on software development, theory, and applications. Current interests include charge transfer excitations in donor acceptor complexes (organic photovolatics), linear and non linear polarizabilities of molecules.
Water cluster anions: assessing the effect of self-interaction errors in negatively charged water molecules. Journal cover.
General interests of the group are understanding the electronic structure of materials using density functional theory. The group works on software development, theory, and applications. Current interests include charge transfer excitations in donor acceptor complexes (organic photovolatics), linear and non linear polarizabilities of molecules.
Multi-chromophoric organic heptad antenna
General interests of the group are understanding the electronic structure of materials using density functional theory. The group works on software development, theory, and applications. Current interests include charge transfer excitations in donor acceptor complexes (organic photovolatics), linear and non linear polarizabilities of molecules.
Fermi-Löwdin orbital self-interaction correction (FLOSIC) center. One of several Computational Chemical Sciences Centers funded by the US Department of Energy.
General interests of the group are understanding the electronic structure of materials using density functional theory. The group works on software development, theory, and applications. Current interests include charge transfer excitations in donor acceptor complexes (organic photovolatics), linear and non linear polarizabilities of molecules.
Local self-interaction correction: the modification to PZSIC to improve the performance of SIC calculations. JCP Editors’ Choice 2019.

HPC job script example

#/bin/bash
#BSUB -n 12 # Number of cores you are requesting
#BSUB -R "span[ptile=12]" # An option to group together cores per node
#BSUB -W 240:00 # Wall time
#BSUB -q medium_priority # Queue partition
#BSUB -e error.%J.dat # Name of error file
#BSUB -o output.%J.dat # Name of screen out file

touch FODSCFONLY
/shared/mpi/bin/mpirun -np 12 ./nrlmol_exe > print.1

Dell Lab Server User and Admin Guide

Dell T640 (hostname: heisenberg) is an in-lab 40 core/80 thread machine. Dell T440 (hostname: hartree and fermi) machines are also available within the local network.

Access
The server machine can be accessed from the lab via SSH.
ssh username@heisenberg.local

or
ssh username@hartree.local
ssh username@fermi.local

Using Slurm
sbatch to submit a job
squeue to check the job status
scancel to delete the job

NRLMOL Run Checklist

After you run NRLMOL, you should always inspect the calculation. This is to ensure that your calculation is correct or not. The below is a list of things to check.

error file:
Error messages are printed in this file when the code crashes.

Resources for Learning Fortran

Here are the resources for coding with Fortran programming language.

Compiling PCM Driver on HPC with Intel Fortran - 2018 Edition (Updated: won't link)

A short note about how to compile PCM library on UTEP-HPC.
Update 7/6/2018 - This approach won't link.

0. Download cmake
Go to https://cmake.org/download/ and download cmake-3.11.0-Linux-x86_64.tar.gz
Extract the tarball file and you have cmake-3.11.0-Linux-x86_64/bin/cmake.
Add this cmake bin directory to your PATH.

1. Log in to HPC VCL
cd PCM2/

Owncloud

Owncloud is installed on Quantum. Ask system admin for setting up a user account. Users can be added via the web interface with an admin right.

Owncloud web interface is accessible via: https://quantum.utep.edu/owncloud

Client software is available on Windows/Macintosh/Linux computers.
On a Fedora computer, install following packages:

owncloud-client.x86_64
owncloud-client-nautilus.x86_64 (Gnome)
owncloud-client-dolphin.x86_64 (KDE)

15.09 SIC code - FOD Force testing

Comparison of FOD forces from 1509 code against Perfect code.

15.09 SIC Code - Carbon Atom FOD Optimization

FOD optimization of a carbon atom. The geometry is taken from CMU compare directory.

15.09 SIC Code - Energy Testing

Comparison of 15.09 FLO-SIC code against Perfect code. Energies of first and second iterations are compared.
Discrepancy at the first iteration tells you SIC energy calculation is wrong, and discrepancy at the second iteration tells you SIC matrix is calculated wrong.

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