Version 4.0

Version 4.0. It's a major update including several new features!

Note

Please note that the format of the input files are a little different from previous versions!

New Features

• Accurate group velocity ray-tracing implementation in fmst package.
• Add nonlinear conjugate gradient and L-BFGS optimizer for large-scale problems
• High order dispersion data can be included.
• Add test functions for further development.

Updates

• Update parameter files, docs and references.
• Use binary file for saving gravity matrix.
• More readable framework.

v3.1

Version 3.1. Update from version 3.0.

Note

Please note that the format of the input files are a little different from previous versions!

New Features

• Parallel linear system solvers in src/utils/lsmrModule_csr.f90.

Updates

• Update parameter files, docs and references.
• Add I/O functions.

Bug Fix

• Fix bugs in utils/gravity_forward.f90
• Fix bugs in the computing gravity matrix.

[3.0] - 2021-04-24

Version 3.0. Important version! This version is about 5-10 times faster than previous versions!

New Features

• Rewrite slegn96 and sregn96 in Computer Programs in Seismology. Now analytical derivatives for Love and Rayleigh wave dispersion could be utilized.
• Water layer could be involved in joint inversion.

Bug Fix

• Fix the compiled name of function surfdisp96 to surfdisp96_ in src/SurfaceWave/surfdisp96.f.
• Fix bugs in parallel reading.

[2.2] 2021-01-05

Version 2.2

New Features

• Add useful L-curve modules in utils

Bug fix

• Remove obsolete files in src
• Add EIGEN_DONT_PARALLELIZE macro to avoid problems in gcc-4.8

[2.1] 2020-11-10

Version 2.1

New Features

• Substitute Coordinate Format Matrix with Compressed Sparse Row Matrix, save memories.
• Remove kernel folder to save disk space.

Bug Fix

• Fix bugs in utils/gravity_forward.f90

[2.0] 2020-03-16

Version 2.0

New Features

• Parallelization for 2-D FMM computation
• Remove gravity.dat output for src/gravity/main.cpp, now gravity module only output the matrix.
• Rewrite some mess code in utils/*

Bug Fix

• Fix initialization problems in include/coo_matrix.hpp
• Fix the the computation of the no. of elements for sparse matrix

v1.0

First general release of JDSurfG

Features:

• A concise C++ wrapper for Inversion
• Remove NP and NL restrictions for dispersion forward module src/surfdisp96.f
• Use full derivative method to substitute three independent ones for 1-D surface wave dispersion sensitivity kernel.
• Parallelization for gravity matrix generation and synthesizing.