IBM 3032 Processor Complex

IBM 3032 Processor Complex

IBM 3032 Processor Complex
Announced Oct 6, 1977 and
withdrawn Feb 5, 1985

The following is the edited text of an IBM Data Processing Division technical press release distributed on October 6, 1977.

The new 3032 Processor, announced today by International Business Machines Corporation, can extend improved levels of performance to users of intermediate and large computers.

The internal instruction execution rate of the 3032 Processor is generally in the range of 2.5 to 3 times that of a System/370 Model 158-3 for similar programs and configurations running under Release 3.7 of the Multiple Virtual Storages operating system (OS/VS 2 MVS). The lower end of the performance range generally is representative of a commercial and interactive job mix, while the upper end of the range generally represents scientific applications.

The 3032 processor complex includes the 3032 Processor with six channels, the 3036 console and the 3027 power and coolant distribution unit.

Processor highlights

A compatible member of the System/370 family, the new processor is designed for users who want to expand their data processing capability but don't require the capacity or performance of IBM's top-of-the-line 3033 Processor.

The basic machine cycle time is 80 nanoseconds for the 3032. The new machine features 32,768 bytes of high-speed buffer storage -- equal to that available on the 168-3 and double the capacity of the 158-3. Buffer storage makes data available more rapidly to the processor at any given time.

The internal organization of the 3032 Processor features separate instruction pre-processing and execution functions, which contribute to improved processor performance by enabling one or more instructions to be prepared while another instruction is being executed.

System/370 Extended Facility is a standard feature of the 3032. When utilized by IBM's MVS/System Extensions program product, it offers increased performance through reduced supervisor path lengths, more effective resource control and reduced software contention. Additionally, IBM's VM/System Extensions program product may be used with either processor and can provide major improvements for users of the VM/370 system control program in a number of areas of resource management, resulting in improved throughput and better terminal response time.

Channel design, features

The 3032 is available with two, four or six million bytes of main storage. The processor storage on both machines is four-way interleaved, a main storage access technique that increases the amount of data available to the processor over a given period of time. This enables the processor to handle a significantly faster data rate than, for example, the non-interleaved processor storage on the Model 158-3 or the Model 148.

One group of six channels is standard on the 3032 Processors. The total number of channels can be expanded to twelve on the 3032 with the addition of an optional channel group. Each group consists of one byte multiplexer channel and five block multiplexer channels. Channels are physically integrated within the processor and operate independently of other processor functions.

The byte multiplexer channels operate in the range of 40-75 thousand bytes per second, and each block multiplexer is capable of a data transfer rate up to 1.5 million bytes per second.

An extended channels feature on the 3032 allows for installation of the additional channel group. These two channel groups are functionally independent, providing improved system availability since one group of channels can be used to run production jobs while certain maintenance tasks are performed on the other group.

Users of the 3032 also may attach an optional two-byte wide, up to three million-byte-per-second, channel feature to the first block multiplexer in either or both channel groups to accommodate high-speed input/output devices.

Additionally, an optional channel-to-channel adapter is available on the 3032 to allow data communication between channels on different processors, establishing a loosely coupled multiprocessor system.

Dual-display console

The 3032 processor complex includes IBM's 3036 console, announced last March with the 3033 Processor. The 3036 contains two console processors, which make possible improved system availability and serviceability. Each console features a dedicated display, keyboard, diskette drive and input/output channel connection. Either display can be designated an operator console or service support console.

The 3032 Processors are supported by MVS, OS/VS 1, Single Virtual Storage (SVS), Virtual Machine Facility/370 (VM/370), and the Airline Control Program (ACP). Both processors also can utilize IBM's Time Sharing System/370 (TSS/370) programming.

Prices and availability

First customer shipments of the new 3032 Processors are scheduled to begin in the first quarter of 1978.

Under a 48-month contract, the new 3032 processor complex can be leased for $43,740 monthly with two million characters of main memory, and $51,360 and $58,470 for four and six million character configurations, respectively. Monthly rental prices for the 3032 in two, four and six million character versions are $48,110, $56,480 and $64,290. Purchase prices are $1,900,000, $2,142,000 and $2,368,000.

MVS and VM/370 support for the 3032 will be available at the time of first customer shipment. SVS, OS/VS 1 and ACP will be available in the second quarter of 1978.

The 3032 was developed at the IBM System Products Division facility in Poughkeepsie, New York, and will be manufactured there.