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Questions tagged [open-source]

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20 views

Open Source Packages Implementing Continuous Wavelet and Scaling Functions

I'm looking for an open source software package that provides a fast evaluation of continuous Daubechies/Symmlet wavelet/scaling functions. GSL only has the discrete wavelets, and PyWavelets comes ...
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0answers
154 views

Convergence of lognormal survival MLE

I'm looking for someone to give me a hand with a calculus / max. likelihood problem & Python. I can't seem to get a MLE to converge, and I suspect it's because my gradient calculations are wrong (...
2
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1answer
119 views

Parallel processing ability of popular commercial software

I recently scaled my dynamic model based on an open source FEM solver, to run a mesh containing nearly 34 million cells successfully on 800 cores. I have very limited experience using commercial ...
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0answers
170 views

Open Source Quadratic Programming with Piecewise Linear Objective

I am looking for an open source solver to solve the a quadratic programming problem with an additional piecewise linear objective, as show below. The problem is fairly small ($\mathbf{x}$ is a vector ...
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5answers
528 views

Open source FEM implementation for Windows

I am wondering is there any robust, well-tested, accurate open source FEM solver package for Windows? I would like to use to power the engine of my structural engineering application. The FEM package ...
7
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3answers
2k views

What is the fastest opensource implementation of Bessel functions computation?

I'm looking for an open-source (to use and learn from) software which computes Bessel functions of integer order of real argument to double precision the fastest among all such implementations. ...
6
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3answers
457 views

Fluid-structure interaction solver for cardiovascular applications

I would like to start running FSI simulations for cardiovascular applications. More precisely, I'm interested in the behaviour of aortic valve under physiological flow conditions in which the ...
11
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1answer
142 views

Policies Relating to Publication and Open Source Development of Code in Academia

Introduction Let me first state some conflicting assertions of the matter to illustrate what are the issues. Personally I would like to have my code open at every stage of development, since ...
1
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1answer
628 views

VTK File: How do I save data on a cell face?

I am writing a program that creates a vtk file with a Rectilinear Grid. I am able to save data to each one of the cells using CELL_DATA, but now, I need to save data to each one of the cell faces (x6)....
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2answers
113 views

Simulating interaction of Smart Fluids with Solids

Is it possible to simulate interaction of Smart Fluids with Solids? Is there a software capable of doing so? What I Know: The two software that I know of are Autodesk Simulation Mechanical and ...
8
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2answers
249 views

How to plan & incorporate project management tools into research code

I'm entering my 3rd year of my PhD program, and up until now my research code (numerical inverse problems/medical imaging/image processing/etc) consists mostly of disorganized MATLAB scripts and ...
2
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1answer
970 views

Celestial mechanics simulation software? The 'N-Body Problem'

What software or sites might simulate an N-body gravitational problem? Application is related to Klemperer Rosette or Iridium Satellites. Bias for C, C++, PHP, or Java. Nice visuals a big plus. ...
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5answers
2k views

Open source codes for 2D instationary Navier Stokes equations

What open source tool can be recommended for solving 2D instationary Navier Stokes equations (in simple geometries, but with high Reynolds numbers)? Most packages I found, I'm not very lucky with. ...
2
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2answers
1k views

Best VTK visualizing software?

I have a large VTK file with rectangular data, it seems Paraview cannot handle the size of the file, so it crashes and Visit navigation is extremely slow? Can anyone point me to good open source ...
8
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2answers
3k views

Open-source 3D FEM Solver for Electromagnetics (Time-Harmonic Maxwell)

I was wondering if there exist any good (accurate/fast/easy-to-use) open-source FEM solvers for 3D time-harmonic Maxwell's equations. I am looking to simulate systems a few wavelengths large in the X/...