FeatFlow 1.3 Release Candidate 10 released.
Small bugs fixed:

• Featflow benchmark stopped when executing the pp2d example. There was a file missing in the tarball.
• Compiler settings of G77 slightly changed to be compatible with gfortran.

FeatFlow 1.3 Release Candidate 9 released.
Two bugs fixed:

• Refinement routine in the file SVEB.F of the FEAT2D library rewritten. Gives a dramatically speed increase when refining 2D grids, expecially when the mesh levels are higher.
  Note: If you want to download the new SVEB.F without downloading the whole archive, you can follow this link: SVEB.F
  Put this into the folder libraries/feat2d/src of the Featflow installation. Rename the old SVEB.F before!
• Bug in the file INIT1.F of all applications fixed. The INIT routine used the variable MSHOW before defining it, so whether the first lines of output appeared on the screen depended on the machine and the compiler.

The software is still beta, so use it at your own risk. Please tell us about any problems with the installation.

Use the "tar" command for decompressing the file ("tar -xvzf ..."). Don't use WinZIP or WinRAR or similar programs since they seem to have problems with .tar.gz files!

Furthermore please execute the Featflow Benchmark and send us the resulting .log-files. Our possibility to test a large variety of computer systems is limited, so we are always searching for new results to publish on our homepage.

The FEAST homepage has been fully redesigned and expanded.

The preprocessing tool DeViSoR Grid3D (version 3.0.15) has been released and provides major improvements and new features. See DeViSoR homepage.

FeatFlow 1.3 Release Candidate 8 released.
Based on RC3, we have now a RC8. The package contains the following changes:

• Makefiles updated for new processor architectures, fall-forward strategy if compiler does not exist (as G77 is not included in the newest gcc packages anymore, gfortran and g95 is tested)
• Some bugs fixed, especially when trying to compile in higher precision mode (128 bit doubles, 64 bit integers).
• Added compiler target to support 8GB memory with Intel Fortran compiler on 64 bit machines (use 'make ALT=ifclarge').
• Commented version of CC2D_MOVBC available. Should help those programmers who want to know what happens inside the code. Note that this is test code! Comments are welcome, but no official support is given for that version.

The software is still beta, so use it at your own risk. Please tell us about any problems with the installation.

Furthermore please execute the Featflow Benchmark and send us the resulting .log-files. Our possibility to test a large variety of computer systems is limited, so we are always searching for new results to publish on our homepage.

• Removed the deprecated MPEG-1 encoder. Replaced it with settings for the MPEG-2 encoder to create MPEG-1 format. This speeds up creation and improves quality for MPEG-1 movies.
• Fix to create movies even without write permission in current working directory.

gmvmpeg 3.0 released.
gmvmpeg is a perl-script that automates and simplifies the generation of MPEG movies out of a sequence of files in GMV format, the "General Mesh Viewer" of the Los Alamos group. Particularly, the possibility to do this "in background" on (remote) computers might be of general interest.

In version 3.0 we added support for the -j option as in make and support for arbitrary naming of the gmv files:

-j <jobs>:

Specifies the number of jobs (commands) to run simultaneously. If there is more than one -j option, the last one is effective. (default: 1)
(needs Perl Module Parallel::ForkManager. Get it from www.cpan.org.)

-i <pattern>:

pattern for gmv input files, use % as wildcard character. Several % mean padding with zeros, e.g.

'u.%.gmv'

for a file list like:   u.1.gmv, u.2.gmv, ..., u.100.gmv, ...

'u.%%.gmv'

for a file list like:   u.01.gmv, u.02.gmv, ..., u.100.gmv, ...

'u.%%%.gmv'

for a file list like:   u.001.gmv, u.002.gmv, ..., u.100.gmv, ...

'u_#%.gmv'

for a file list like:   u_#1.gmv, u_#2.gmv, ..., u_#100.gmv, ...

'sim%'

for a file list like:   sim1, sim2, ..., sim100, ...

(default: u.%.gmv)
Especially the parallel mode should be of general interest and speed up the movie creation process significantly.

FeatFlow 1.3 Release Candidate 3 released.
After a long delay we decided to create a new Featflow package, based on the Featflow source code version 1.2d. The package contains the following changes:

• completely redesigned installation routine based on "intelligent" Makefiles
• redesigned directory structure
• known bugs fixed
• detailed readme.txt documentation files where to find what for what
• compatibility for Cygwin Unix emulator package for Windows
• included project files (beta) for compiling the code in the Microsoft Visual Studio 2004 IDE with Intel Fortran Compiler 8.0

The documentation itself was not revised - therefore before installing Featflow please read the file "readme.txt" in the main directory. This file describes the structure of the new package and how to install it. The different subdirectories contain additional readme.txt files for applications, libraries, benchmark,...

This file is our first "official" release candidate for Featflow 1.3. It's still beta, so use it at your own risk. Please tell us about any problems with the installation.

Furthermore please execute the Featflow Benchmark and send us the resulting .log-files. Our possibility to test a large variety of computer systems is limited, so we are always searching for new results to publish on our homepage.

A new version of the cc2d solver for the nonlinear fluids is available. The main new features are the stabilization of the discretization in the case of deformation tensor formulation and improved treatment of the nonlinear problem using Newton method.

There is a problem with the bouss* versions (bouss, bouss_powerlaw) causing floating point exception error on some architectures (Compaq/alpha) see Bug report page for more details and fix.

Enclosed, there will be the "old" FEATFLOW software version but we plan to publish a significantly improved version in summer 2002!

Be sure that the FEAST Group is still very active.......In fact, our group has significantly grown such that we expect `great things' in the next years. Nevertheless, we still need further experts for out team....:-)

FEATFLOW Summer School

for more information see the Homepage of Lehrstuhl III of Mathematik

Please tell us if there is a problem with 'tar'.