CRAY RESEARCH ANNOUNCES WORKSTATION
VERSION OF POPULAR UNICHEM PRODUCT

Move Helps Establish Supercomputing Application Standard,
Expected to Broaden Supercomputer User Base

EAGAN, Minn., March 25, 1993 -- Cray Research today
announced the availability of a workstation version of the
company's UniChem molecular modeling program originally
designed for its supercomputers.  This is the first time
Cray Research has made its supercomputer software
available on workstations, the company said.

The new software is initially available on Silicon Graphics
workstations and will be available on most UNIX-based
workstations later this year, the company said.  It has the
same look and feel as UniChem for Cray Research
supercomputers and contains all the same features as the
supercomputer version, which was developed by a Cray
Research-led consortium of leading chemical and
pharmaceutical companies.

With more than 35 copies of the supercomputer version of
UniChem software in use worldwide at leading universities,
government research laboratories, and chemical,
pharmaceutical and petroleum companies, the software has
been a strong-selling product for Cray Research.

"The UniChem product was founded on the synergy between
workstation and supercomputer," said Sara Graffunder,
director of applications software development for Cray
Research.  "But today there are many computational
chemists using workstations for their smaller-scale
problems.  In the past if these users decided they wanted to
migrate to a supercomputing environment, they would be
required to learn a new software package.  With UniChem on
the workstation, users can utilize the processing power on
their desktop, and when their problems become so large it's
not practical for the desktop, they have a transparent
transition to supercomputing."

The workstation version of UniChem can also be used to
tackle problems that can't be solved right away on the
desktop, Graffunder noted.   "For example, if users want to
reserve their workstations over a weekend for a 40-hour
computational chemistry job, they can use UniChem on their
workstation.  But, as often happens, if the problem is time-
critical or too large to practically run on the workstation,
the solution must happen on the Cray Research
supercomputer.  This new capability allows users to 'toggle'
from the Cray Research supercomputer to the workstation,
and thereby use the most appropriate resource for their
problem solving," she said.

The common graphical user interface of the workstation and
supercomputer versions of UniChem allow users to access
simulation codes running on local workstations and on any
Cray Research system, said Thomas Raeuchle, UniChem
product manager.

UniChem allows researchers to model and explore a wide
variety of complex molecular systems at a new level of
detail in order to develop new pharmaceuticals, materials
and catalysts, he said.  First announced in February 1991,
UniChem incorporates three quantum chemistry methods
into one package with a common user interface.  The
components are CADPAC for Hartree-Fock, MNDO91 for semi-
empirical, and DGauss for density functional.  The software
also provides an interface to Gaussian 92, one of the most
widely used ab initio packages.

The workstation version of UniChem is currently available
through Cray Research and the company is seeking
distributors, Raeuchle said.  As with UniChem for the Cray
Research platform, the workstation version is offered
either unbundled or as a complete package.  Commercial
prices for the complete package start at $45,000 for low-
end workstations.

Cray Research creates the most powerful, highest quality
computational tools for solving the world's most
challenging scientific and industrial problems.

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