Pilot specification
Collaborating institutions
CINECA, HLRS, IMO, BSC
Associated Natural hazard
Volcanoes
Software involved
ASHEE, FALL3D.
Usability
Research, comprehension of the phenomena, reduced order codes development and hazard assessment.
PD3: High-resolution volcanic plume simulation
| Main objective / mission | Understanding the dynamics of explosive volcanic eruptions |
| Workflow description | The workflow is built using bash and python scripts to easily start from the ensemble of initial and boundary conditions and easily produce results such as observables. |
| Tested architectures | Which HPC environments have you tested the pilot on (i.e. PRACE or your institution’s clusters) |
| Target TRL | 3 View TRL chart |
| Relevant stakeholders | INGV Pianeta Dinamico project |
| Achievements up to M41 | Performance measures and Optimization of the code. |
| Related work and further information | Few academic papers and, if possible, websites, news pieces and other links that might be helpful to get further information about the pilot. |
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Exascale outlook
Exascale target (capability/capacity)
Large parallel simulations allow the user to increase model resolution and size of the domain. Ensembles of smaller simulations enables sensitivity analysis and uncertainty quantification
Main benefits expected from large increase in compute resources
More simulations enables a larger initial parameter space. With volcanoes a lot of initial and boundary parameters are necessary. Enlarge the discrete size of a single scenario increases the spatial scale and the resolution enabling for regional accurate simulations.
Main challenges in harnessing large compute resources
Improve strong and weak scalability.
Specific actions towards exascale at present time
Measure performances and code optimization using HPC european infrastructures.
Computational details
| Number of cores / GPUs: | Memory (GB): | Storage (GB) both temporal and permanent: | #files written both temporal and permanent | I/O data traffic per hour during job | |
| Minimum: | 64 | 16 | 100 | 1e6 | 10 GB/h |
| Average: | 1000 | 64 | 1000 | 1e8 | 100 GB/h |
| Maximum: | 6000 | 256 | 10000 | 1e9 | 500 GB/h |