Delft3D

Licences

Example scripts

Serial


For when only one CPU is required, generally as part of an job array.

#!/bin/bash -e

#SBATCH --job-name      Delft3D
#SBATCH --time 00:05:00 # Walltime #SBATCH --mem 512M # Total Memory #SBATCH --hint nomultithread # Hyperthreading disabled
module load Delft3D
d_hydro test_input.xml

Multi-threaded 


For domain based decompositions.

Use cpus-per-task to allocate resources.

Each subdomain runs in a separate
thread, inside one executable. Limited to one node.

#!/bin/bash -e

#SBATCH --job-name      Delft3D 
#SBATCH --time 00:05:00 # Walltime #SBATCH --cpus-per-task 4 #SBATCH --mem 2G # Total Memory #SBATCH --hint nomultithread # Hyperthreading disabled module load Delft3D

d_hyrdo test_input.xml

MPI


Domain is split automatically in stripwise partitions. Can run across multiple nodes.

Use ntasks to allocate resources.

Cannot be used in conjunction with:

  • DomainDecomposition
  • Fluid mud
  • Coup online
  • Drogues and moving observation points
  • Culverts
  • Power stations with inlet and outlet in different partitions
  • Non-hydrostatic solvers
  • Walking discharges
  • 2D skewed weirs
  • max(mmax,nmax)/npart ≤ 4
  • Roller model
  • Mormerge
  • Mass balance polygons
#!/bin/bash -e

#SBATCH --job-name      Delft3D 
#SBATCH --time 00:05:00 # Walltime #SBATCH --ntasks 4 #SBATCH --mem-per-cpu 1G #SBATCH --hint nomultithread # Hyperthreading disabled module load Delft3D

srun d_hyrdo test_input.xml

Note

Trying to use more tasks than there are partitions in your model will cause failure.

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