Release Notices for Cactus 4.0 beta 4
=====================================
Monday November 1st 1999


Released modules:
================

      Cactus
      CactusBase
      CactusEinstein
      CactusElliptic
      CactusNet
      CactusPUGH
      CactusPUGHIO
      CactusWave
      external


New thorns:
==========
      CactusEinstein/IDAxiBrillBH
      CactusEinstein/Extract
      CactusNet/NetGeometry

Main Changes:
============
      Faster compilation times (Cactus)
      

CVS Tag: Cactus_4_0_Beta_4
=======


==============================================================================


CHANGES FOR BETA 4
==================


Utils
=====

1) CST: The perl part of the compilation has been optimised, and
   is now much faster

2) Compilation for thorns with large numbers of grid variables fixed
   on origin

3) Testsuite checking technology fixed for NT


Util Thorns
===========

1) CactusBase/Boundary: Bugs fixed in radiation boundary conditions.
   Copying boundary conditions added. ConstantBC conditions
   renamed to ScalarBC. ConstantBC will be removed in next beta release.

2) CactusPUGHIO/IOASCII: Memory bugs fixed

3) CactusPUGHIO/IsoSurfacer: Now works on T3E

4) CactusNet/NetGeometry: Generic interface for data streaming via
   a TCP socket connection to viz clients

Relativity Thorns
=================

1) CactusEinstein/IDAxiBrillBH: New thorn: Constructs initial data for a 
   black hole with an even parity perturbation. This thorn still has a little
   trouble on a few platforms, see below for details

2) CactusEinstein/Extract: New thorn: Extracts gauge invariant waveforms
   from a spacetime with approximate spherical symmetry
 

==============================================================================


KNOWN BUGS IN BETA 4
====================
(See Cactus bug tracking system for a complete list)

1) CactusNet/http, external/TCPXX, external/RemoteIO still not compiling
   on all platforms

2) EllPETSc only compiles with MPI, but doesn't tell you this

3) AxiBrillBH has problems on some platforms


==============================================================================


WHAT TO EXPECT IN BETA 5
========================

1) Fixes for all known bugs in Beta 4

2) Implementation of 1D, 2D, 3D arrays

3) Maximal slicing

4) Generic implementation of parameter choice for elliptic slicings 

5) Apparent horizon finding thorn


==============================================================================


TEST MACHINES NOTES
===================

           * Intel Linux
                o bifrost.aei-potsdam.mpg.de Redhat 6.0, Absoft
                  compiler, wo MPI
                     + Remove: CactusPUGHIO/IOHDF5,
                       CactusElliptic/EllPETSc
                     + Notes: CactusElliptic/EllPETSc compiled with
                       MPICH
                o gullveig.aei-potsdam.mpg.de Redhat 6.0, Absoft
                  compiler, MPI LAM
                     + Remove: CactusPUGHIO/IOHDF5,
                       CactusElliptic/EllPETSc

           * Dec Alpha
                o galar.aei-potsdam.mpg.de wo MPI
                     + Remove: CactusElliptic/EllPETSc,
                       CactusPUGHIO/HDF5, external/RemoteIO,
                       CactusNet/http, CactusEinstein/IDAxiBrillBH

           * SGI 64 bit
                o origin.aei-potsdam.mpg.de Irix 6.5, w/wo native
                  MPI
                     + Remove: CactusElliptic/EllPETSc
                     + Configure: HDF5=yes MPI=NATIVE
                       HDF5_DIR=/usr/local/apps/hdf5

           * SGI 32 bit
                o nott.aei-potsdam.mpg.de Irix 6.5 wo MPI
                     + Remove: CactusPUGHIO/IOHDF5,
                       CactusElliptic/EllPETSc
                     + Notes: Problem with output for PsiKadelia
                       test
                o null.wustl.edu Irix 6.2 wo MPI
                     + Remove: CactusNet/http, CactusPUGHIO/IOHDF5,
                       CactusElliptic/EllPETSc, external/TCPXX,
                       external/RemoteIO
                     + Notes: Gives a lot of warnings about data
                       alignment

           * T3E
                o pc.rzg.mpg.de w/wo native MPI
                     + Remove:
                       CactusElliptic/EllPETSc,CactusPUGHIO/IOHDF5,
		       CactusEinstein/IDAxiBrillBH

           * Windows NT
                o saraband.aei-potsdam.mpg.de wo MPI
                     + Remove: CactusNet/http, external/RemoteIO,
                       CactusElliptic/PETSc,
                       CactusPUGHIO/IsoSurfacer, external/TCPXX,
                       CactusWave/IDScalarWaveCXX,
                       CactusWave/IDWaveToyCXX
                o ntsc-ts1.ncsa.uiuc.edu w/wo HPVM MPI
                     + Remove: CactusNet/http, external/RemoteIO,
                       CactusElliptic/PETSc, CactusPUGHIO/IOHDF5,
                       CactusPUGHIO/IsoSurfacer, external/TCPXX,
                       CactusWave/IDScalarWaveCXX,
                       CactusWave/IDWaveToyCXX
	             + Configure: MPI=CUSTOM MPI_LIBS="mpi.lib fm.lib
                       advapi32.lib kernel32.lib wsock32.lib" MPI_INC_DIRS
                       ="d:/apps/hpvm/include"
	             + Notes: testsuite checking technology doesn't
                              work here with MPI because of batch queues

           * HP
                o exemplar.npaci.edu wo MPI, HP-UX 10.01
                     + Remove: CactusNet/http, external/RemoteIO,
                       CactusPUGHIO/IsoSurfacer,
                       CactusElliptic/PETSc, external/TCPXX,
		       CactusNet/NetGeometry

	   * SP2
		o quad.mcs.anl.gov wo MPI
		     + Remove: CactusNet/http, external/RemoteIO,
		       CactusPUGHIO/IsoSurfacer,
		       CactusNet/NetGeometry, external/TCPXX,
		       CactusEinstein/IDAxiBrillBH, 
	               CactusElliptic/EllPETSc, CactusPUGHIO/IOHDF5
	             + Notes: dependencies broken for IEEEIO, can ignore
                              and continue