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{\bf
International Parallel Machines Inc.  (IP-1)
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{\bf
Parallel Cross-Bar Architecture
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{\bf Architecture:}
The IP-1 has between 1 and 33 proprietary MOS technology CPUs
which have access to a common memory through an interconnection
switch. The combination of cross-bar switch and a multi-access
memory (developed from work on the Goodyear Aerospace Staran system)
avoids the bottleneck associated with bus-based systems.
The memory bandwidth is 213 Mbytes/sec even with a full configuration.
Floating-point performance is obtained
through an optional floating-point
accelerator based on Weitek chips.

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Standard systems have from 8 to 264 Mbytes of memory although the
32-bit address can be extended to 48 bits for a potential of 256
Terabytes of memory. Data paths are 64 bits wide.
Systems are available with from 170 Mbytes to 11 Gbytes of disk space.

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{\bf Configuration:}
I/O is handled asynchronously from the CPUs.  There can be up
to 52  I/O ports.  The IP-1 can be used in stand-alone mode but
can have front-end machines, for example a VAX or a Sun. 
Other equipment can be interfaced through standard VMEbus
connections, including any UNIX-based workstations or Prolog or
Lisp based symbolic processing workstations.
Peripherals include  1/2-inch tape drives, multiple
disk drives running in parallel, plotters and printers, and
a close-coupled high-speed communication interface to other CPUs.
Ethernet (TCP/IP) is supported.

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{\bf Software:}
The operating system is compatible with UNIX System V.3,
supporting up to 64 users, with real-time extensions available.
There is a C-callable parallel math routine library,
vectorizing C and Fortran 77 compilers,
and an IP-1 virtual machine package for software developers.

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{\bf Applications:}
Applications software includes
tools for
database management, printed circuit board layout, oil reservoir
simulation, seismic data analysis, chemical modelling,
computational fluid dynamics, aerospace simulations, and structural
analysis.
International Parallel Machines also specialize in turnkey systems and
will port any serious application
depending on market potential.

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{\bf Performance:}
Peak performance of the 9-processor system is
150 Mflops double-precision IEEE, while that of the 33 CPU machine is
just under 600 Mflops double-precision IEEE.

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{\bf Status:}
The IP-1-9 system (with 9 CPUs) costs \$220,000 with peak
performances of 100 mips and 150 Mflops.  The entry level IP-1-1, rated
at 8 mips/16 Mflops, in a cabinet with a 21 slot Eurocage, 8 Mbytes
memory, a 128 Kbyte WCS, a (formatted) 170 Mbyte disk, 1 CRT, IPOS, and
C compiler, costs \$49,000. The 33 CPU 264 mips/528 Mflops
IP-1-33, with 264 Mbytes of memory costs just under \$1M.

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The dimensions of the standard 9-processor configuration are 49"
x 20" x 22". The weight is 200 lb, and the power consumption a
little over 1 KW.

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The first machine was delivered in October 1985.
Many sales through multiple OEM contracts.


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{\bf Contact:}
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Technical:\\
Dr. Robin Chang\\
President\\
International Parallel Machines, Inc.\\
700 Pleasant Street\\
New Bedford, MA 02740\\
508-990-2977;     Telex 888648\\
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Sales:\\
Robert E. Hydrisko\\
Strategic Markets Director\\
International Parallel Machines Inc.\\
700 Pleasant St.\\
New Bedford, MA  02740\\
508-990-2772;  Fax: 508-9966726\\
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