January 10th, 2018

November 22nd, 2017

January 6th, 2017

August 21st, 2016

February 16th, 2015

January 20th, 2015

January 6th, 2015

September 22th, 2014

July 17th, 2014

July 11th, 2014

April 4th, 2014

Introducing EFISPEC

EFISPEC stands for "Element-FInis SPECtraux".

EFISPEC3D is a free code that solves the three-dimensional wave equations using a spectral-finite-element method (SFEM); commonly called spectral-element method (SEM).

EFISPEC3D is programmed in FORTRAN95 and MPI to run on parallel architectures. It is under a double license: CeCILL V2 and GNU GPL V3.


  • Linear simulations
  • Viscoelastic simulations (memory variables method)
  • Paraxial boundary absorption
  • Double-couple extended sources
  • Single force sources
  • Free surface snapshots
  • Volume snapshots