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{\bf
GOULD NP1
}

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Company is no longer marketing this product.

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{\bf
Vector Register, Parallel, Shared-Memory Architecture
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{\bf Architecture:}
The NP1 is a stand-alone multi-CPU minicomputer.
It can have up to four CPUs, 2 Gbytes of
memory, up to 500 Gbytes disk space, and all the usual peripherals.
Each CPU is independent. Coarse-grain
parallelism is supported using FORK and VFORK.

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The CPU is based on Gould proprietary ECL gate array technology. Two
CPUs can be attached to a
64 bit wide, 154 Mbytes/sec
system bus.
Each CPU consists
of a scalar and an optional vector processor (arithmetic accelerator).
Up to four system buses
can be tightly coupled.

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Up to 512 Mbytes of 16-way interleaved
memory can be attached to a single system bus
(in modules of 16 or 64 Mbytes) using 1 Mbit DRAMs.
Each CPU can access memory on any of the system buses, giving
a total of 1 Gbyte of real physical
memory. The virtual
memory space is 4 Gbytes.

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Each CPU has a 32 Kbyte cache memory.
The NP1 arithmetic format has less precision but
greater range than the IEEE-754 standard.

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I/O is handled through Universal I/O Micro-engines (UIOM)
providing 80 Mbytes/sec links to the system bus. Each UIOM will support
multiple Intelligent Peripheral Interface (IPI) buses. Each IPI will
support up to eight I/O modules, which could be Gould's Disc
Intelligent Module (DIM) controlling up to four disc drives (with SMD,
SMD-E or XMD interfaces) at 3 Mbytes/sec or VME for peripherals (line
printer, magnetic tape, 8-line asynchronous controllers, Ethernet
etc.). New parallel connections are being developed for supercomputer
connections (100 Mbyte/sec) and high-speed disk (20-40 Mbytes/sec).
Ethernet TCP/IP is supported, as is X25 with color book,
and 3270 BSC, and Cray HSX. DECnet support under TCP/IP is expected
soon, and Gould is committed to OSI.

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{\bf Software:}
Gould's UTX/32 operating system combines all features of AT\&T
version V and BSD 4.3 with extensions for simultaneous real-time
support.  UTX/32 on the NP1 rates as a `C2' class operating system.
Gould supports IEEE 1003.1 - POSIX standard.

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{\bf Languages:}
Highly optimized C and Fortran 77 compilers are available, and
Ada, Pascal, LISP, COBOL, BASIC, and Assembler are also supported.
Gould Common Fortran
(GCF) is an extension to Fortran 77 that includes most VMS extensions,
an 8x intrinsic function library, and interlanguage communication
support.

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Application software includes DI-3000 CORE and GK-2000 graphics,
PVI metafile system, INGRESS, Q-Office, Q-Office+, NAG, oracle,
20/20, Informix, and Unify.

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{\bf Performance:}
NP1 peak performance is 14 mips, 40 Mflops (20 in double
precision) using the vector processor.  The following benchmarks
were obtained on a single CPU NP1 system with a arithmetic
accelerator and 64 Mbytes of 8-way interleaved memory:  14.1
Whetstone (single precision), 10.2 Whetstone (double precision),
5.3 Mflops LINPACK (double precision coded BLAS) and 167000/sec
Dhrystones.  Compilation speeds average 17800 lines/min for GCF
and 8000 lines/min for the  GCF vector pre-processor.

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{\bf Status:}
The Gould NP1 was launched in March 1987, and the first NP1 was
delivered to Purdue University in June.
The first UK
order from a major aerospace company has just been received.
The University of Bath has placed an order for a 3-processor
system to provide central teaching and research facilities.  The
University of Edinburgh has also installed a single-processor
system.
The cost
varies from around \$250K for a single CPU system to \$1.8M for a fully
configured 4 CPU system with 1 Gbyte of memory.

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{\bf Contact:}
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Gould Inc.\\
Computer Systems Division\\
15378 Avenue of Science\\
San Diego, Calif. 92128-3407\\

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Northern Headquarters\\
Regent House\\
Heaton Lane\\
Stockport Cheshire SK4 1BS\\
England\\
061-480-0907\\

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Graeme Boydell\\
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