The code is in private test as of April 23, 1994.
We do not expect to release any public
version soon (but there will be one).
First 2-D runs.
Implicit solver for diffusion/heat conduction equation.
Multidimensional problems are solved using weighted splitting
(fractional steps) scheme by Yanenko (1971) which is accurate to
second order in space and time. In 1-D the method reduces to
Crank-Nicolson scheme. Optionally an explicit solver may be used.
PROMETHEUS integrated with AMR (2-D).
Parallel version for Cray PVP systems
(usually it is >99% parallel but the lower limit that we can actually
guarantee is 95% in 2-D; in short, there is no single number but
performance is rather strongly problem dependent).
Arbitrary Temporal Refinement (ATR).
Consistent Multifluid Advection (CMA).
1-D and 2-D Poisson solver.
Improved load balancing on CRAY.
RJET integrated with AMR.
Fixes for CMA and 1-D Poisson solver.
2-D photoionization by central source.
Refinement criteria in case of strong composition variations.
Fix for ATR.
Parallel version on SGI Onyx/Origin.
Optimization of 1- and 2-D Poisson solvers on CRAY.
Implementation of nuclear burning.
First draft of 3-D version.
Fixed typo in parallel IRIX version. (kok)
Revision of parallel version for CRAY PVP f90 compiler. (kok)
Major revision of CMA.
Bug fix in CMA for non-varying chemical composition.
Clustering of patches now faster by a factor of up to 10.
Spline option for OUT/MOV files.
Time step incorrectly passed for coarsened patches when ATR is used.
Back to interpolation in volume coordinate.
Partial densities now consistently used throughout the code. (ewm/kok)
CDM component (a la
Support for STARS (stars in fluid
2-D version: done.
Optimized version of interpolation procedures.
HERAKLES joins family of
HERAKLES is our ultimate (say) hydro solver based on PROMETHEUS (a PPMDE
code developed by Bruce Fryxell and Ewald Müller), and does not
differ in functionality from its predecessor. HERAKLES is targeted at
both superscalar (cache-oriented) and vector architectures. The code
features a brand new memory management which allows to achieve optimal
performance for a given (second level) cache size or number of vector
registers (vector length) especially in multidimensional simulations.
Signature-based clustering (after Berger and Rigoutsos).
Angular momentum transport.
Multidimensional artificial viscosity (a la sPPM).
Thermal diffusion added.
Isothermal version of HERAKLES.
ATR fixes - code can now run at arbitrary fractions of nominal Courant
time step on different levels.
Level-dependent interpolation order. Second order interpolation
with 4th order slopes (after Colella) added.
Fixes for spherically symmetric Poisson solver (kok).
Fixes near symmetry axis (cylindrical and spherical geometries).
Ported to OpenMP.
GENESIS special relativistic solver integrated with AMRA.
AMRA paper submitted to CPC (available from astro-ph archives
and AMRA paper document).