Homec4science
Diffusion C-tracker (master)

Edit
C-tracker
ActivePublic

Branch: master
Actions
Clone

A Lagrangian particle tracker for hydrodynamic numerical simulations in python.
The numerical part is compiled (via cython) providing reasonable speed.
It can run in parallel using multithreading, and stores the results in netcdf4 format.

The numerical method is closely derived from "tracmass" (http://tracmass.org/), and is based on Döös et al. 2013.

It is developed for use with MITgcm results, but any C- (or B-) grid model should be easily adaptable.

For questions, comments, issues, please contact Andrea Cimatoribus @ epfl
https://people.epfl.ch/andrea.cimatoribus

Please drop me a line if you actually end up using the code.

C-tracker (master)

.gitignore
README.md
configuration.py
ctracker/
example_run.py
package-list.txt
setup.py

Recent Commits

CommitAuthorDetailsCommitted
3f15d7741f80andrea
Changed README 
Jan 18 2018
baaf03ede6d7andrea
Changed README 
Jan 17 2018
69f2aac3a993andrea
Updated readme 
Oct 20 2017
242c1db953c0andrea
Updated readme 
Oct 20 2017
305049fd9931andrea
Updated readme 
Oct 20 2017
a6a0a482f479andrea
Merge branch 'master' of ssh://c4science.ch/diffusion/3351/c-tracker 
Aug 16 2017
38ca907ed9a8aubort
Revert "Admin test" 
Aug 16 2017
ebda44569823aubort
Admin test 
Aug 16 2017
129b1fa709b5andrea
Bug fix 
Aug 15 2017
2f9e09110bdbandrea
Bug fix 
Aug 15 2017
7d764723a233andrea
Use corner array and make sure we do not search beyond array borders 
Aug 15 2017
156e32b17e69andrea
Add check to remove invalid seeding points. Related to deviations from… 
Aug 10 2017
c85815686742andrea
Added check for pathological cases of particles starting from land 
Aug 10 2017
f88982f7fa06andrea
Changed algorithm for identification of seeding points. Slightly faster, more… 
Aug 7 2017
7b9a3a7947f3andrea
Removed compilation file, added file with conda installed list. 
Aug 7 2017

README.md

C-tracker

A Lagrangian particle tracker for hydrodynamic numerical simulations written in python and cython. The numerical part reproduces the results of tracmass code (https://github.com/TRACMASS/tracmass) by Döös et al., while introducing some minor changes in the numerical algorithm. It is developed for use with MITgcm results, but any C- (or B-) grid model could be used as a source for the hydrodynamic fields.

*The code, while tested for the correctness of the results, should be considered experimental.*

Furthermore, the code would certainly benefit from a major cleanup, moving the numerical core to C. At the moment, most of the implementation choices are determined by the strong limitations of cython in combination with multithreading.

For questions, comments, issues, please contact Andrea Cimatoribus at epfl https://people.epfl.ch/andrea.cimatoribus

Installation

To install:

python setup.py build_ext --inplace

For using non-default compilers, use e.g:

LDSHARED="icc -shared" CC=icc python setup.py build_ext --inplace

For intel C compiler, a good set of options is:

LDSHARED="icc -shared" CC=icc CFLAGS="-O3 -xHOST -ipo -static -fp-model source" python setup.py build_ext --inplace

It seems that the results are very stable to further, more aggressive optimization.

packages-list.txt file lists all installed packages in my miniconda python installation.

c4science · Help