SPECFEM 3D Geotech is an open-source, parallel and cross-platform geotechnical engineering application. This software was originally developed for slope stability analysis and simulation of multistage excavation. Main features include surface loading, water table, gravity loading, and pseudostatic earthquake loading. The software is parallelized based on MPI and domain decomposition. Changes in the version v1.2.0 The file format of the displacement boundary conditions has changed (See Section 3.2.5 of the manual). Now the program can be run from the general locations. Main routines are modularized in preparation to add new applications in the coming versions. Removed all instances of runtime warning for temporary arrays. Added step-by-step tutorials for both serial and parallel runs. Added GiD mesh converter. Improved EXODUS mesh converter. Fixed several minor bugs. Structural change and overall code cleanup.

{"references": ["Gharti, H. N., D. Komatitsch, V. Oye, R. Martin, and J. Tromp (2012). Application of an elastoplastic spectral-element method to 3D slope stability analysis. International Journal for Numerical Methods in Engineering 91, 1-26", "Gharti, H. N., V. Oye, D. Komatitsch, and J. Tromp (2012). Simulation of multistage excavation based on a 3D spectral-element method. Computers & Structures 100-101, 54-69"]}