JPS63255741A - Data processor - Google Patents

Abstract

PURPOSE:To shorten the transfer time of list data by storing list data having a table format in an element memory device provided on an element processing part and transferring data in parallel between the element memory device and an element register device. CONSTITUTION:List data is expressed with the table format, and its discrimination information is stored in a list memory device 5. In the case of operation of this data, list data in the memory is transferred to a register Rx. A list operating device 7 and an element operating device 11 simultaneously process discrimination information 15 in a list registering device 6 and element data 16 in each element registering device 10 respectively. Processing results are stored in the list registering device 6 and the same registers Rx of the element registering device 10. As the result, all list data is transferred in the transfer time of one element data independently of the number of elements in the list.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a data processing device mainly intended for use in the field of artificial intelligence.

BACKGROUND OF THE INVENTION In recent years, the field of artificial intelligence has been actively researched as one of computer applications. In this field, it is necessary to process structured data, and therefore LISP, a language that can handle structured gaters, is widely used. Since it is inefficient to execute the LISP language on a general-purpose computer, special-purpose machines with various improvements have been developed.

These dedicated machines were improved mainly from a linguistic perspective, and the typical improvements made are shown below.

(11 Primitive functions such as CAR and CDR are executed at the microprogram level.

(2) TAG for handling generic data types
data format.

(3) Provide a hardware control stack to speed up stack processing.

(References, "rLISP Machine" Information Processing Vol.

23 Na 8 pp752-772) However, although improvements have been made to the execution system of the language as described above, the representation of structure data inside a computer basically uses pointers to express the order of elements and the method of connection. The expression (hereinafter referred to as a list) is used.

Generally, a list is expressed as a binary tree, starting from a starting node and branching left and right sequentially, ending at each leaf node. There are two types of leaf nodes: atom nodes and NIL nodes. Nodes that are not leaf nodes are list nodes that indicate that the branch is continuing.

This list node is used to indirectly represent the position of a leaf node.

In pointer representation, this list structure is expressed as is, and all nodes are expressed as cells connected by addresses, which causes the following problems.

1. Adases located at arbitrary positions, searching for arbitrary elements within a list, and decomposing/combining lists require going through the list, which is inefficient.

2. Matching of lists and searching for arbitrary sublists within a list involve decomposition of the list, which is inefficient.

It is inefficient because it involves solution operations.

In order to solve these problems, it is basically necessary to change the expression of list data. That is, if the positions of leaf nodes can be directly determined, there is no need to have list node information.

Therefore, equivalent list data can be expressed by a table in which leaf position information and leaf information are arranged in order. As a way to express the node position of this leaf, if we use a one-dimensional vector representation by assigning order numbers along the length of the list and sequentially assigning items in the depth direction, the list data will be a vector indicating the position information of the leaf. It is expressed in a tabular format as a set of data consisting of information on the leaf itself and information on the leaf itself.

FIG. 3 shows an example of list data representation. This shows the graphical representation (Fig. 3 (a)) and tabular representation (Fig. 3 (b)) of the list data, which becomes (A (B (C)) D) when expressed in 8 formulas. It is something. In the diagrammatic representation, circles represent list nodes, and squares represent leaf nodes. Further, the number string added above each node indicates the node position expressed according to the above-described method. A tabular representation (Figure 3 (b)) is a table that extracts this leaf part and represents it in the form of a table.It is a table in which the address part contains the node position vector and the value part contains the leaf elements. It is configured.

When a list is expressed in such a tabular format, each element can be accessed without passing through pointers, and list processing such as pattern matching can be performed at high speed by performing operations on each element in parallel. I can do it.

An example of the conventional data processing device mentioned above will be described below with reference to the drawings. FIG. 4 shows the configuration of a conventional data processing device.

In FIG. 4, 21 is a main memory device, 22 is a transfer device,
23 is a real data register device, 24 is a real data calculation device, 26 is a list register device, 27 is a list calculation device,
29 is an element register device, 30 is an element operation device,
A real data processing section 25 consisting of a real data register device and a real data arithmetic device, a list processing section 28 consisting of a list register device and a list arithmetic device, and a plurality of elements consisting of an element register device and an element arithmetic device. It is constituted by a processing section 31.

The operation of the data processing apparatus configured as described above will be described below.

When processing list data, first the main memory device 21
The data stored in and stored in is transferred by the transfer device 22.
The identification information is transferred to the list register device 26 of the list processing section 28, and each element is transferred to the element register device 29 of a separate element processing section 31.

List data calculations are performed by the list calculation device 27 for the identification information of the list register device 26 and by the element calculation device 30 for the elements of each element register device 29. The list data processed by the list processing section 28 and the element processing section 31 is transferred to the main memory device 21 by the transfer device 22 and stored therein. In addition, when processing normal numerical data and atomic data, the data stored in the main memory device 21 is similarly transferred to the real data register device 23 of the real data processing section 25, and the real data calculation device 24 performs calculations. .

By distinguishing list data from other data in this way and processing each element in parallel by separate processing devices, list processing can be performed more efficiently than in conventional pointer representation formats.

Problems to be Solved by the Invention However, with the above configuration, the list data can be processed in parallel for each element on the register device, but the list data between the main memory device and the element register device can be processed in parallel. Transfers occur frequently, which reduces the overall processing speed of list processing.

In view of the above problems, the present invention provides a data processing device that reduces the time required to transfer list data in parallel processing of list data in tabular format.

Means for solving the above problems In order to solve the above problems, the data processing device of the present invention divides each element of list data into an address part indicating the position of a node and a value part indicating a reference to the data value. An element memory 8 for configuring and storing is placed, an element register device for transferring and storing the elements recorded in the element memory device, and an element operation device for performing operations on the elements stored in the element register device. a list memory device that stores identification information of list data; a list register device that transfers and stores the identification information stored in the list memory device; The list processing unit includes a list calculation device that performs calculations on stored identification information, and is capable of processing list data transfer and calculations in parallel for each element.

According to the above-described configuration, the present invention includes an element memory device in the element processing section that processes list data in tabular format for each element, stores the list data in the element memory device, and transfers the list data between the element memory device and the element register device. By transferring in parallel, the transfer time can be significantly shortened.

Embodiment Hereinafter, a data processing apparatus according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the configuration of a data processing device in an embodiment of the present invention. In FIG. 1, 1 is a real data memory device, 2 is a real data register device, 3 is a real data calculation device, 5 is a list memory device, 6 is a list register device, 7 is a list calculation device, 9 is an element memory device, 10 1 is an element register device, and 11 is an element arithmetic device. 4 is a real data processing section composed of a real data memory device, a real data register device, and a real data arithmetic device; 8 is a list processing section composed of a list memory device, a list register device, and a list arithmetic device; 12 is a This is a plurality of element processing units composed of an element memory device, an element register device, and an element arithmetic unit.

FIG. 2 shows the operation of transferring list data between the memory device and the register device in the data processing device of the above embodiment. The identification information of the list data stored at address Mn of the list memory device 5 and the element memory device 9 is 13, and the data of each element is 14. The identification information of the list data transferred to the register Rx of the list register device 6 and the element register device 10 is 15, and the data of each element is 16. However, 9 (n), 10 (n
), 14(n), and 16(n) are the element memory device, element register device, data in the element memory, and data in the element register of the n-th element processing unit 12(n), respectively.

The operation of the data processing apparatus configured as described above will be explained below with reference to FIGS. 1 and 2.

The list data is expressed in a table format, and its identification information is set to 13 at an arbitrary address Mn of the list memory device 5, and n pieces of element data are separately stored in the element processing unit 12 (1).
~12 Element memory device 9 in (n) (1) ~9 (
14 (1) to 14 (n
) is stored as. In order to perform an operation on this data, first the list data in the memory is transferred to the register Rx. That is, the identification information in the list memory device 5? 1
13 is in 15 of Rx in the list register device, each element data 14 (1) in the element memory device 9 (1) to 9 (n)
) to 14(n) are each element register device 10(1)
Simultaneously transfer to 16(1) to 16(n) of IRx within 10(n). When data is transferred to a register or arithmetic operations are performed on the list data, the list arithmetic device 7 processes the identification information 15 in the list register device 6 from each element register device 10.
The element arithmetic unit 11 simultaneously processes the element data 16 in the list register device 6 and the element register device 10, and the processing results are stored in the same register Rx in the list register device 6 and the element register device 10.

When processing or storing data back into memory, the above transfer process is performed in the opposite direction. That is, the identification information 15 in the list register device 6 is the same as the identification information 13 in the list memory device s.
In addition, each element data 16(1) to 16(n) in the element register devices 10(1) to 10(n) are stored in 14(1) to 14 in the element memory devices 9(1) to 9(n), respectively. (n) at the same time. Further, normal numerical data and atom data are distinguished from list data, and are stored in the real data memory device 1, transferred to the real data register device N2, and operated by the real data arithmetic device 3.

As a result, the transfer of list data between the register device and the memory device is independent of the number of elements in the list, and all data transfer is completed in the transfer time of one element data. Therefore, with the above configuration, the data transfer time in the tabular representation of list data is significantly shortened, and furthermore, high-speed list processing is realized by processing each element data calculation in parallel.

In this embodiment, the results of operations performed on the list data in the register are stored in the same register, but the results may be stored in different registers.

Effects of the Invention As described above, the present invention provides an element memory device that stores each element of list data constituted by an address field indicating the position of a node and a value field indicating a reference to a data value, and the element memory device described above. A plurality of element processing units each including an element register device that transfers and stores elements stored in the element register device, and an element operation device that performs operations on the elements stored in the element register device, and a plurality of element processing units that store identification information of list data. It is composed of a list memory Wi for storing, a list register device for transferring and storing the identification information stored in the list memory device, and a list calculation device for performing an operation on the identification information stored in the list register device. Equipped with a list processing section, by transferring each element of the tabular list data stored in the element memory device in parallel to and from the element register device, the transfer time is significantly shortened and the list data can be processed in parallel. You will be able to do it faster.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a data processing device according to an embodiment of the present invention, FIG. 2 is an operational diagram of list data transfer in the data processing device of this embodiment, and FIG. 3 is an example of a tabular representation of list data. The explanatory diagram shown in FIG. 4 is a configuration diagram of a conventional data processing device. 5...List memory device, 6...List register device, 7...List calculation device, 8.
... List processing unit, 9 ... Element memory device, 10 ... Element register device, 11 ...
. . . Element calculation device, 12 . . . Element processing unit. Name of agent: Patent attorney Toshio Nakao
Tsuba c″ Mi 2 43(b)

Claims (1)

[Claims] An element memory device configured and stored with an address field indicating the position of a node of each element of list data and a value field indicating a reference to the data value, and an element memory device that transfers and stores the elements stored in the element memory device. a plurality of element processing units including an element register device and an element operation device that performs an operation on the elements stored in the element register device; a list memory device that stores identification information of list data;
comprising a list processing unit including a list register device that transfers and stores identification information stored in the list memory device; and a list calculation device that performs an operation on the identification information stored in the list register device; A data processing device characterized in that it is configured to be able to process list data transfer and calculation in parallel for each element.