Training · April 22-23, 2025
Computational Seismology and Underwater Acoustics: the SPECFEM code

Date: 22-23 April, 2025 

Organisers: ChEESE-2P / NuTS / SEASOUNDS

Location:  Faculté des sciences et des techniques Nantes Université 2, LPG Building 4, Chem. de la Houssinière, 44322 Nantes, France. [See Building 4]

Cost: There is no registration fee

Maximum number of attendees: 30

Register here

Registration deadline: 29 January, 16:00h

Programme: Read

This course will focus more specifically on the SPECFEM code, which is based on a spectral-element method in the time domain. This code enables to model full-wave propagation for various applications in seismology and underwater acoustics. The aim is to provide basics and more advanced knowledge of how the 2D and 3D versions of SPECFEM work, as well as the potential of using HPC for SPECFEM simulations. Specifically, participants will learn about the basic steps for downloading and setting up the code, including the input parameters, for meshing domains of interest, using a computing center, etc. Shown examples, including show cases, and hands-on activities will illustrate the course.

Learning Outcomes: 

Participants will learn how to implement and run full-wave simulations using the 2D and 3D versions of the SPECFEM code for their research in seismology or underwater acoustics.

Requirements: 

Bring your own laptop (it does not need to be powerful).

Academic Staff: 

  • Paul CRISTINI (CNRS-LMA) is an acoustician working on the numerical simulation of wave propagation in underwater acoustics using high-performance computing. His research focuses on seismo-acoustics, specifically the handling of the elasticity of marine sediments. He has over 15 years of experience using the SPECFEM2D software.
  • Maxence FERRARI(CNRS-LMA) is a bioacoustician specializing in marine mammals. He knows the ins and outs of Specfem as he is developing a new version of Specfem from scratch based on Kokkos in the ChEESE-2P project.
  • Vadim MONTEILLER (CNRS-LMA), with over 10 years of experience in SPECFEM3D, has focused on the development of full waveform inversion techniques and contributed to optimizing the code. His work includes porting SPECFEM3D to GPUs, improving its performance for large-scale simulations on modern supercomputers.

Further information

  • We recommend that you choose a hotel in the centre of Nantes (Château, Bouffay, 50 otages, Graslin, etc.), close to the Line 2 of the tramway. From the city centre, the Science Campus can be reached in 30 minutes on foot or 10 minutes by tram.
  • For any questions and further details about the training, please contact: Vadim Monteiller (monteiller@lma.cnrs-mrs.fr) or Paul Cristini (cristini@lma.cnrs-mrs.fr).

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