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Processing Range of 1.7 to 27 MWhets
Designed with VLSI Technology
Hardware and Software Compatible with CONCEPT-32 Systems
MULTISel offers a system-level solution for tightly-coupled,
distributed processing by providing up to four CPU/IPU
computational elements (nodes) in a single, com-pact
cabinet. Up to nine nodes can function as a single multi-
processing system with one node designated as the system
MULTISel enables the user to apply the right amount of
processing power to individual application areas by as-
signing them to independent, but closely coupled, MULTISel
nodes. Goulds unique Reflective Memory system links these
nodes TO provide each with a common address range for data
needed by all nodes in the system.
This distributed design enables the user to:
Virtually eliminate contention among nodes for improved
MULTISel configurations with various hosts allow hardware and software support for up to nine nodes forming a single system.
High-density packaging and internal cabling enable two connected MIJLTISe1 cabinets with up to eight nodes to provide up to 24 MWhets of distributed power in a space only three feet, eight inches wide. The controlling host node can be a CONCEPT 32/97, 32/87. Se1PAC or another MULTISel, depending on application requirements. With a CONCEPT 32/97 or 32/87. The system-level processing range increases to 34 MWhets.
The MULTISel Host/Node Peripheral Cabinet differs from the standard node cabinet in that it is designed to accommodate peripheral devices in the upper half Each node supports standard CONCEPT/32 hardware and software and runs its own copy of the MPX-32 Operating System, which is downloaded from the host node, Nodes are available in eight- and 16-SelBUS slot versions
MULTISel nodes contain:
cooled, eight- or 16- lot Se1BUS chassis with power supply
Each of these components is implemented on a single circuit board. MULTISel nodes also can contain an Internal Processing Unit (IPU) a secondary computational processor with its own Floating-point Coprocessor.
The single-board CMOS CPU uses the latest in advanced gate array technology to perform at levels equivalent to the CONCEPT 32/67 CPU while maintaining complete hardware compatibility.
Surface mourn chips and
FAST-logic technology enable Gould to produce a single-board,
floating-point accelerator that can be used as a coprocessor with the
CMOS CPU and IPU. The Floating-point Coprocessor performs floating-point
arithmetic operations and fixed-point multiplication in a fraction of
the time required by firmware and software implementations. Both 32-bit
single precision and 64-bit double precision operands are supported.
Several SelBUS and Multipurpose
Bus boards are consolidated on the Multi-Function Processor (MFP) board.
This board encompasses the following functions:
The MFP supports these functions without an expansion chassis. As an option, a second device interface card supports two 5 1/4inch floppy disk drives and is capable of generating an MP Bus
Dual-Port Integrated Memory Modules (DPIMMs) provide 2MB or 8MB of memory, DPIMMs feature two-way, on-board interleaving, which alleviates memory busy problems and improves memory access times in various applications. The second port of the DPIMM supports Reflective Memory DPIMMs can provide 16MB of memory and use only two Slots
With Reflective Memory, Nodes retain their own private memory while taking advantage of a common, logically linked reflective memory partition This partition contains data required by all nodes in the system, in effect providing each with its own copy of the data base. Any node writing to this partition causes that write to be immediately transferred to other nodes reflective memory partitions. Thus, each node has free access to its own constantly- updated copy of the application data base
Reflective Memory relies on the following components
The RSC monitors the RMB and the WSC monitors the SelBUS for
addresses soft-programmed to specify the reflective portion of memory
The RSC and WSC contain buffers for queuing requests to or from the RMB.
which eliminates additional processing time The RMB is a high-speed bus
that transfers data at the SelBUS rate of 26.67MB/second
Software is an optional. MPX-32-based package consisting of six application tasks which provide the necessary tools to configure, download control, and monitor up to eight nodes from a single host
6744A - MULTISel COMPUTER SYSTEMS Real-time,
distributed processing systems with one eight-slot or 16-slot node.
6744C- MULTISel EXPANSION NODE Includes 2MB or 8MB DPIMM
6744E - MULTISel HOST/NODE
PERIPHERAL CABINET Includes 2MB or 8MB DPIMM, eight- or 16-slot chassis, and power strip forthe peripheral equipment.
8921 MULTISel EXPANSION CHASSIS Includes eight-slot chassis, fan assembly, power sequencer, and universal power supply.