About:
The FLASH code is a modular, adaptive, parallel simulation code capable of handling general compressible flow problems in astrophysical environments. It has been designed to allow users to configure initial and boundary conditions, change algorithms, and add new physical effects with minimal effort. It uses the PARAMESH library to manage a block-structured adaptive grid, placing resolution elements only where they are needed most. It uses the Message-Passing Interface (MPI) library to achieve portability and scalability on a variety of different message-passing parallel computers.

Release focus: Major feature enhancements

Changes:
This release adds new gravity solvers, a source term for stirring, a nuclear burning network, a directionally split 8wave MHD solver, and an equation of state for fully ionized plasma of arbitrary degeneracy. It also includes Lagrangian tracer particles for the uniform grid. API changes include complete interface definitions of the units' API, support for face-centered discretization variables, curvilinear geometry in the meshes, and more robust boundary conditions handling. Two methods of parallel I/O support have been added. New test cases have been added.

Author:
FLASH Code Team [contact developer]

Rating:	reset 1 2 3 4 5 6 7 8 9 10
8.40/10.00 (1 vote)

Homepage:
http://flash.uchicago.edu/
Tar/GZ:
http://flash.uchicago.edu/website/coderequest/
Changelog:
http://flash.uchicago.edu/[..]site/home/home.py?submit=fullArticle.txt
Mailing list archive:
http://flash.uchicago.edu/website/mailinglists/

Trove categories: [change]

[Development Status]		5 - Production/Stable
[Environment]		Console (Text Based)
[Intended Audience]		Other Audience
[License]		Free for non-commercial use, Free To Use But Restricted
[Operating System]		OS Independent
[Programming Language]		C, Fortran
[Topic]		Scientific/Engineering :: Astronomy, Scientific/Engineering :: Mathematics

Dependencies: [change]
Hierarchical Data Format (recommended)
[download links]

 Branches

Branch	Version	Last release	License	URLs
Stable	3.0alpha	25-Oct-2006	Free for non-commercial use

 Releases

Version	Focus	Date
3.0alpha	Major feature enhancements	25-Oct-2006 23:42
2.3	Major feature enhancements	07-Jun-2003 16:14
2.2	Major feature enhancements	05-Dec-2002 06:12
2.1	Major feature enhancements	10-Jun-2002 04:23
2.0	Major feature enhancements	31-Jan-2002 16:23
2.0pre	Major feature enhancements	12-Sep-2001 21:53
1.61.p1	Minor bugfixes	11-Jul-2001 16:08
1.61	Initial freshmeat announcement	10-May-2001 18:36

 Comments

[»] FLASH2.2 Release
by FLASH Code Team - Dec 4th 2002 16:09:01

We are pleased to announce the immediate available of FLASH2.2. All users of previous versions are encouraged to upgrade. The download is available at: https://flash.uchicago.edu/cod e_download/ (note the 's' in https). You will need your username and password from previous downloads.

New users can request the code at: http://flash.uchicago.edu/public/handlePublic.py?submit=codeRequest

The major changes are summarized below:

-- Expanded documentation

-- Better support for Intel, Compaq, and Lahey compilers

-- Enhancements to the setup script (-nxb, -with-module, -stack)

-- HDF5 output is now the default
o runtime parameters are now stored in HDF5 files
o minima and maxima attributes accompany the variable
records
o serial I/O performance improved
o ability to restart from a checkpoint file directly

-- New conversion tools for TecPlot and ChomboVis

-- PPM improvements

o hybrid Riemann solver
o further implementation of the CMA algorithm

-- entropy now returned by all EOSs

-- new model burners (kpp and arrhenius)

-- gravity changes

o optimizations to the multipole gravity solver
o multigrid can use multipole coarse solve

-- geometry enhancements

o new prolongation routines for 1-d spherical and 2-d cylindrical
geometries
o flux correction fixes in 1-d spherical coordinates
o generalized restriction routine
o improved support for non-Cartesian geometries in the diffusion
routines

-- initial support for cosmology

-- integration of IBM HPM and PAPI performance monitor libraries

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[»] New Release
by FLASH Code Team - Jun 14th 2002 23:59:12

With FLASH2.2, we're hoping to move to a more regular release schedule, with patches everytime something major improves.
News will always be posted to the FLASH-USERS mailing list that you'll have the option of being subscribed to when you register for the software; we'll also keep the freshmeat info up-to-date. Comments and questions should go to the mailing lists.

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