==================
VITESS Version 2.8
==================

===========
New Modules
===========
New modules
    grid           for a series of apertures
    slit           for a simple rectangular aperture
    capture_flux
    spin_reset
have been added.

sm_ensemble got a major overhaul: use 1 to 13 (program constant) mirrors.
monochr_analyser: optional deviations from the ideal monochromator
   element orientations, gaps between monochr. elements
spacewindow_multiple: rectangular windows

========================
Compressed Neutron Files
========================

The output of the last pipe command may be written as a
compressed file. This is of interest especially if you work
with large intermediate files.
If the filename contains ".nodebug." all debug information is stripped
but the rest remains without loss, reducing the file size to 63%.
If the name contains ".float." additionally the neutron position is
restricted to float values (reduction to 41%).
Compressed files may be read with Vitess 2.8, compress mode is coded
in the first 4 bytes.

=================================
Parallel Pipes and Grid Computing
=================================
Multiple parallel pipes help to exploit the compute power
of quadcore CPUs, multi CPU nodes and computer grids.
With some care you may set up your simulation, store it
with the GUI "Save Grid Command" to a file, and execute
it with the help of the new TOOLS/grid_command.pl.
(WWW/vitess-technique.pdf)

=================
Unix Installation
=================

Unix installation is made easier with the installAndTest
script. It helps to adjust absolute path names and to apply
a special patch to a Tk source file.