dealias / triad Goto Github PK
View Code? Open in Web Editor NEWAn object-oriented C++ kernel for integrating initial value problems.
License: GNU General Public License v3.0
An object-oriented C++ kernel for integrating initial value problems.
License: GNU General Public License v3.0
T R I A D Copyright (C) 2000-2016 John C. Bowman ([email protected]) INTRODUCTION ============ Triad is an object-oriented C++ kernel for integrating initial value problems. Design priorities, in order of priority: 1. High-performance computing 2. Portability 3. Object-oriented construction (reusable code) 4. Easy user-interface for data entry and output (eg., using XDR) COMPILATION =========== This program has been successfully compiled and tested on i386, alpha, rs6000, sun, sgi, and t3e UNIX platforms. To compile, simply say in the appropriate problem-dependent directory: make For better optimization, one can specify compiler-dependent optimization flags, for example: make CFLAGS="-O3 -DNDEBUG" EXECUTION =========== The command line is triad [<options>] <options> is a list of assignments, delimited by spaces, of the form A=B. One of the most important options is the "run" name. Consider, for example, the command line triad run=test dt=1 The run name is associated with the parameter file test/p, which contains further parameters assignments, separated by whitespace. Except for the run name itself, command line assignments override parameter file assignments. Thus, in the above example, the run "test" is begun, using the time step of 1, regardless of what time step may be specified in the parameter file. The default run name is "test". Examples: triad itmax=10 This evolves run test 10 time steps, producing whatever output files are specified by the problem-dependent portion of the code, along with restart and statistics files and a parameter file in a format suitable for a graphics program (such as sm). On each run, the parameter file is overwritten with the current values, so that the program effectively "remembers" previous command-line settings. triad itmax=10 restart=1 This restarts a previous run ("test") and executes an additional 10 time steps. triad itmax=10 init=1 This evolves run test 10 time steps, using as initial values the final values computed the last time this case was run. triad itmax=10 clobber=1 This evolves run test 10 time steps, overwriting a previous restart file. triad itmax=10 dynamic=1 tolmax=.5 tolmin=.05 A typical example of dynamic time-stepping parameters that lead to efficient computation without numerical instability. triad itmax=10 tmax=2.0 This evolves run test for 10 time steps or for 2.0 time units, whichever is less. This is useful when dynamic time stepping is enabled and it is desired to terminate computation at a fixed time. triad itmax=10 sample=1.0 This evolves run test for 10 time steps, producing output files at exactly at ever 1.0 time units. This is useful when dynamic time stepping is enabled and it is desired to produce uniformly spaced output values. triad itmax=10 dynamic=0 This disables the dynamic time-stepping mechanism. The complete list of kernel commands is itmax microsteps tmax dt dynamic tolmax tolmin stepfactor stepnoninvert dtmin dtmax tprecision sample polltime hybrid digits restart initialize clobber override verbose run checkpoint output method integrator Each problem will generally define other commands to set various user supplied parameters. *** FURTHER DOCUMENTATION TO BE ADDED ***
A declarative, efficient, and flexible JavaScript library for building user interfaces.
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. ๐๐๐
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google โค๏ธ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.