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Introduction and Licensing

Quantum ESPRESSO is an integrated suite of computer codes for electronic-structure calculations and materials modeling at the nanoscale. It is based on density-functional theory, plane waves, and pseudopotentials (both norm-conserving and ultrasoft).

Quantum ESPRESSO stands for opEn Source Package for Research in Electronic Structure, Simulation, and Optimization. It is freely available to researchers around the world under the terms of the GNU General Public License.

Please visit the Quantum-espresso-webpage for complete information and documentation.

Installed Versions

The following version 5.2 of Quantum-ESPRESSO is available on the SuperMUC and Linux-Cluster.

Usage

Before running Quantum-ESPRESSO job, please load the module environment appropriate first after login to the system via:

 module load quantum-espresso

Serial and parallel execution of Quantum-ESPRESSO

After loading the module of Quantum-ESPRESSO, the directorie (pseudo) containing the needed pseudopotentials is in

echo $QESPRESSO_PSEUDO

and the executables files are in:

echo $QESPRESSO_BIN

The sequential execution of Quantum-ESPRESSO (example for band-structure calculation) :

pw.x -np 1 / or bands.x  inputfilename

Running parallel Q-ESPRESSO with script job on Linux-Cluster and SuperMUC-NG

#!/bin/bash
#SBATCH -o /home/cluster/group/user/job_name.%j.out
#SBATCH -D /home/cluster/group/user/job_name.%j.out
#SBATCH -J <job_name>
#SBATCH --get-user-env
#SBATCH --clusters=mpp1
#SBATCH --ntasks=32
#SBATCH --mail-type=end
#SBATCH --mail-user=<email_address>@<domain>
#SBATCH --export=NONE

#SBATCH --time=24:00:00
module load slurm_setup

cd mydire <link to your input>
module load  quantum-espresso 
mpiexec -n 8 pw.x / or bands.x  my-job.inpor
srun -n 8 -i my-job.inp pw.x

#!/bin/bash 
# Job Name and Files (also --job-name) 
#SBATCH -J jobname
#Output and error (also --output, --error): 
#SBATCH -o ./%x.%j.out 
#SBATCH -e ./%x.%j.err 
#Initial working directory (also --chdir): 
#SBATCH -D ./
#Notification and type
#SBATCH --mail-type=END
#SBATCH --mail-user=insert_your_email_here
# Wall clock limit: 
#SBATCH --time=24:00:00
#SBATCH --no-requeue
#Setup of execution environment
#SBATCH --export=NONE 
#SBATCH --get-user-env
#SBATCH --account=insert your_projectID_here
#SBATCH --partition=insert test, micro, general, large or fat 

module load slurm_setup
cd mydire <link to your input> 
module load quantum-espresso  

mpiexec -n 8 pw.x / or bands.x my-job.inp
or
srun -n 8 -i my-job.inp pw.x

Dokumentation

• After execution of module load qespresso, the environment variable documentation points to a directory containing the Quantum-ESPRESSO documentation as it comes with the source code:

• ls -C   $QESPRESSO_DOC
  ls -C  $QESPRESSO_BASE
  

• Other format of the documentation and more information may be found on the Quantum-ESPRESSO-webpage

Examples

After loading the environment appropriate module, the Quantum-ESPRESSO examples:

ls -C $QESPRESSO_EXAMPLES

Support

If you have any questions or problems with the installed version of Quantum-ESPRESSO on the different LRZ platforms, please don't hesitate to open a trouble ticket under: https://servicedesk.lrz.de/?lang=de