Dalton

This article is a draft

This is not a complete article: This is a draft, a work in progress that is intended to be published into an article, which may or may not be ready for inclusion in the main wiki. It should not necessarily be considered factual or authoritative.

Introduction

The kernel of the Dalton2016 suite is the two powerful molecular electronic structure programs, Dalton and LSDalton. Together, the two programs provide extensive functionality for the calculations of molecular properties at the HF, DFT, MCSCF, and CC levels of theory. Many of these properties are only available in the Dalton2016 suite.

• Project web site: http://daltonprogram.org/
• Documentation: http://daltonprogram.org/documentation/
• Forum: http://forum.daltonprogram.org/

Modules

$ module load nixpkgs/16.09 intel/2016.4 openmpi/2.0.2 dalton/2017-alpha

Notice that dalton/2017-alpha depends on a non-default version of Open MPI. For more on the module command see Using modules.

Usage

Here is an example:

• Dalton input file: dft_rspexci_nosym.dal (see Examples below)
• Molecule specification: H2O_cc-pVDZ_nosym.mol (see Examples below)
• To use the atomic basis set installed with the program, supply the option -b ${BASLIB}.
• The number of processes can be set using a command line option or an environment variable:
  • Add the option -N ${SLURM_NTASKS} to the launcher command line (refer to Script 1 in the example).
  • Or, export DALTON_NUM_MPI_PROCS=${SLURM_NTASKS} (refer to Script 2 in the example)).

To run Dalton, load the module and use the launcher dalton:

dalton -b ${BASLIB} -N ${SLURM_NTASKS}  -dal dft_rspexci_nosym.dal  -mol H2O_cc-pVDZ_nosym.mol

or

export DALTON_NUM_MPI_PROCS=${SLURM_NTASKS}
dalton -b ${BASLIB}  -dal dft_rspexci_nosym.dal  -mol H2O_cc-pVDZ_nosym.mol

Examples: scripts and input files

Example 1: dft_rspexci_nosym

INPUTMOLECULEScript 1Script 2

File : dft_rspexci_nosym.dal

**DALTON INPUT
.RUN RESPONSE
**INTEGRALS
.PROPRINT
**WAVE FUNCTIONS
.DFT
 B3LYP
**RESPONSE
*LINEAR
.SINGLE RESIDUE
.ROOTS
 3
**END OF DALTON INPUT

File : H2O_cc-pVDZ_nosym.mol

BASIS
cc-pVDZ
H2O

    2    0
        8.    1
O     0.0  0.0000000000 0.0
        1.    2
H1    1.430    0.0  1.1
H2   -1.430    0.0  1.1

File : run_dalton_job.sh

#!/bin/bash

#SBATCH --nodes=1
#SBATCH --ntasks-per-node=4
#SBATCH --mem-per-cpu=3500M
#SBATCH --time=00-30:00

# Load the module: 

module load nixpkgs/16.09  intel/2016.4  openmpi/2.0.2 dalton/2017-alpha

# Setting the variables:

dltonlaun=dalton
dltonexec=dalton.x
daltoninput=dft_rspexci_nosym.dal
daltonmol=H2O_cc-pVDZ_nosym.mol

echo "Starting run at: `date`"

echo "Running the example: INPUT=${daltoninput} - Molecule=${daltonmol}"

${dltonlaun} -b ${BASLIB} -N ${SLURM_NTASKS}  -dal ${daltoninput}  -mol ${daltonmol}

echo "Program finished with exit code $? at: `date`"

File : run_dalton_job.sh

#!/bin/bash

#SBATCH --nodes=1
#SBATCH --ntasks-per-node=2
#SBATCH --mem-per-cpu=3500M
#SBATCH --time=00-30:00

# Load the module: 

module load nixpkgs/16.09  intel/2016.4  openmpi/2.0.2 dalton/2017-alpha

# Setting the variables:

dltonlaun=dalton
dltonexec=dalton.x
daltoninput=dft_rspexci_nosym.dal
daltonmol=H2O_cc-pVDZ_nosym.mol

# Set the number of cores DALTON_NUM_MPI_PROCS to ${SLURM_NTASKS}

export DALTON_NUM_MPI_PROCS=${SLURM_NTASKS}

echo "Starting run at: `date`"

echo "Running the example: INPUT=${daltoninput} - Molecule=${daltonmol}"

${dltonlaun} -b ${BASLIB}  -dal ${daltoninput}  -mol ${daltonmol}

echo "Program finished with exit code $? at: `date`"

Example 2: dft_rspexci_sym.dal

INPUTMOLECULEScript 1Script 2

File : dft_rspexci_sym.dal

**DALTON INPUT
.RUN RESPONSE
**INTEGRALS
.PROPRINT
**WAVE FUNCTIONS
.DFT
 B3LYP
**RESPONSE
*LINEAR
.SINGLE RESIDUE
**END OF DALTON INPUT

File : H2O_cc-pVDZ_sym.mol

BASIS
cc-pVDZ
H2O

    2
        8.    1
O     0.0  0.0000000000 0.0
        1.    2
H1    1.430    0.0  1.1
H2   -1.430    0.0  1.1

File : run_dalton_job.sh

#!/bin/bash

#SBATCH --nodes=1
#SBATCH --ntasks-per-node=4
#SBATCH --mem-per-cpu=3500M
#SBATCH --time=00-30:00

# Load the module: 

module load nixpkgs/16.09  intel/2016.4  openmpi/2.0.2 dalton/2017-alpha

# Setting the variables:

dltonlaun=dalton
dltonexec=dalton.x
daltoninput=dft_rspexci_sym.dal
daltonmol=H2O_cc-pVDZ_sym.mol

echo "Starting run at: `date`"

echo "Running the example: INPUT=${daltoninput} - Molecule=${daltonmol}"

${dltonlaun} -b ${BASLIB} -N ${SLURM_NTASKS}  -dal ${daltoninput}  -mol ${daltonmol}

echo "Program finished with exit code $? at: `date`"

File : run_dalton_job.sh

#!/bin/bash

#SBATCH --nodes=1
#SBATCH --ntasks-per-node=4
#SBATCH --mem-per-cpu=3500M
#SBATCH --time=00-30:00

# Load the module:

module load nixpkgs/16.09  intel/2016.4  openmpi/2.0.2 dalton/2017-alpha

# Setting the variables:

dltonlaun=dalton
dltonexec=dalton.x
daltoninput=dft_rspexci_sym.dal
daltonmol=H2O_cc-pVDZ_sym.mol

# Set the number of cores DALTON_NUM_MPI_PROCS to ${SLURM_NTASKS}

export DALTON_NUM_MPI_PROCS=${SLURM_NTASKS}

echo "Starting run at: `date`"

echo "Running the example: INPUT=${daltoninput} - Molecule=${daltonmol}"

${dltonlaun} -b ${BASLIB}  -dal ${daltoninput}  -mol ${daltonmol}

echo "Program finished with exit code $? at: `date`"

Message Passing Interface