JPH08137819A - Connection controller - Google Patents

Abstract

PURPOSE: To provide a mechanism which has a connection part between processors simplified and is given flexibility for the performance improvement of a parallel arithmetic mechanism. CONSTITUTION: A connection switching switch part 120 internally has switch elements 1210-1284 which optionally provide styles of connections between a looped signal line and plural processor elements 101-107, and desired parallel pipeline processing structure is obtained. A switch element control part 150 controls the connection states of the switch elements 1210-1284 through the signal line 144. Connection alteration contents are sent through a signal line 160 and connection alteration timing is transmitted through a signal line 170. An integrated circuit is reduced in the number of input/output pins and made compact by giving a two-way function to the connection switching switch part 120, and switches are formed in simple structure to reduce element delay by the switch elements, improve a data transfer speed, and further optionally change the connection states between processors.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arithmetic mechanism for parallel processing which connects a plurality of processors having the same interface, and more particularly to a connection control device used for linkage between processors which is simple, fast and flexible. .

[0002]

2. Description of the Related Art Various methods have been proposed in the past for constructing a parallel operation mechanism using a plurality of processors to achieve high-speed processing. In order to realize a parallel arithmetic mechanism, it is essential to improve the data transmission speed between the processors in order to improve the performance, and the flexibility of the structure of the data transmission line between the processors ensures the versatility of the arithmetic unit. It is essential.

For example, Japanese Laid-Open Patent Publication No. 05-108586 adopts a method of connecting a plurality of processors by connecting switches in multiple stages. However, since unidirectional and complicated control is required, interprocessor processing is performed. It is required to simplify the connection structure, improve the data transmission rate, and provide flexibility.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the performance of a parallel operation mechanism so as to improve the data transmission speed between the processors and at the same time to ensure the versatility of the operation device. An object of the present invention is to provide a connection control device that gives flexibility to a transmission path.

[0005]

[Means for Solving the Problems] To achieve the above object,
According to the present invention, a switch unit capable of arbitrarily switching the connection is inserted in a connecting portion between a plurality of processors to freely change the structure of the parallel operation mechanism and simplify the switch unit to enable parallel transmission. This has improved the data transmission speed.

That is, according to the present invention, a plurality of processor elements having at least one interface port, a plurality of signal transmission loop signal lines, an interface port of the plurality of processor elements and a plurality of signal transmission loop signal lines. Between each,
A bidirectional switch for connecting and disconnecting the two and a switch control device for controlling opening and closing of the bidirectional switch are provided, and the bidirectional switch is for transmitting a signal from the interface port to the signal. The connection state is controlled so as to bypass the interface port or the interface port from the loop signal line or the signal transmission loop signal line, and any processor element among the plurality of processor elements can be connected.

[0007]

According to the present invention, a connection exchange switch section having a simple structure is inserted between a plurality of processors to be connected, and the connection state can be arbitrarily changed to connect the processors forming the parallel operation mechanism. It is possible to set an efficient structure in accordance with the processing content and to carry out a versatile operation.

Further, by making the switch section compact, the mounting efficiency on the printed circuit board can be improved.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention provides a processing mechanism (hereinafter, abbreviated as parallel / pipeline processing) by parallel or pipeline or a combination of both having a structure most suitable for a processing target capable of parallel and pipeline processing. However, high-speed calculation is performed. Therefore, not only is the processing capacity as a parallel operation mechanism high, but the processing structure of the parallel pipeline can be arbitrarily changed according to the target.

An embodiment of the present invention will be described below with reference to FIG. FIG. 1 shows seven processor elements 101, 102, 1 which are constituent elements of a parallel operation mechanism according to the present invention.
03, 104, 105, 106 and 107 are switch units 1
20 shows an example connected to 20.

The processor elements 101 to 107 in charge of parallel / pipeline processing are commercially available DSs.
The connection exchange switch unit 120 is a P (Digital Signal Processor) or the like, and realizes a connection state between any of the plurality of processor elements 101 to 107 to configure a desired parallel / pipeline processing structure. To do.

Signal lines 131, 132, 133 connected to the input / output ports of the processor elements 101-107,
The signal line 138 connected to 134, 135, 136, 137 and another device (not shown) having the same interface as the processor element is a plurality of loop signal lines 1200, 12 provided in the connection exchange switch unit 120.
02 and 1204, the switch element 121 controlled by the switch element control unit 150 via the signal line 144.
0 to 1284 selects whether to be in the connected state or the unconnected state.

The switch element controller 150 controls the external signal 1
The connection state is given through 60, and the switch elements 1210 to 1284 are synchronized with the switch connection change signal 170.
Change the connection of. Each switch element 1210-12
84 has three switches that are opened and closed by the signal line 144.

The number of loop signal lines X (natural number)
Is preferably set to satisfy the following equation. Thereby, all the processor elements are arbitrarily connected.

[0015]

[Equation 2]

FIG. 2 shows switching elements 1210 to 1284.
3 is a detailed configuration diagram of FIG. Although only the switch element 1210 shown in FIG. 1 is shown in FIG. 2, the other switch elements are similarly configured.

The switch element 1210 is composed of three bidirectional switching elements 1310, 1312, 1314, and the individual bidirectional switching elements are AND gates 201, 202, 203, 2 connected in an antiparallel relationship.
04, 205 and 206, one terminal of each gate is connected to the signal line 1200.

Internal gate elements 201, 203, 205
Is an AND gate which becomes conductive when the signals 301, 303 and 305 are at “H” level (the opposite is “L” level), and becomes non-conductive at “L” level. AND) element. Gate element 202, 20
4, 206 are conductive from right to left in the figure when the signals 302, 304 and 306 are "H" level (the opposite is "L" level), and are non-conductive when "L" level. It is an AND gate (AND) element. The bidirectional switching elements in the other switch elements 1212 to 1284 are also configured similarly.

Assuming that the left side of the figure is "L", the right side is "R", and the upper side is "processor element PE", the signal lines ~
Depending on the state, the connection configuration having the directivity as shown in the lower table of FIG. 2 can be realized. For example, in order to make a through state from R to L, it can be realized by setting the signal line to "H" level and the other signal lines to "L" level.

The output from the processor element PE to R sets the signal line to the "H" level, and the other signal lines,
It can be realized by setting the "-" to "L" level. When all the signal lines are set to the “L” level, the connection between the processor element (PE) 101 and the loop signal line 1200 is lost and the loop signal line 1200 is cut off.

FIG. 3 is a detailed block diagram of the switch element controller 150 for controlling the switch element. External signal 16
The information set according to the FF output state table from 0 to 0 is once set in the flip-flop 310 and set in the flip-flop 320 by the switch connection change signal 1170, and the output signal is set to the AND gate elements 330 to 3.
With the combination of 35 and the knot gate element 340, 6 states for setting each element of the switch elements 1210 to 1284 are created from the set 4 states, and the information corresponding to the signal lines 1 to 4 in FIG. 2 is output.

Here, if the information of the flip-flop 310 is unchanged, the states of the switch elements 1210-1284 do not change even if the switch connection signal 170 is set. That is, the connection can be changed all at once by changing only the flip-flop 310 where the connection of the switch elements is desired to be changed and issuing the switch connection change signal 1170.

FIG. 4 shows an example of connection when the processor element is composed of 7 processor elements having 6 input / output ports. Arrows indicate the flow of data, and there are inputs from other devices and outputs to other devices.

FIG. 5 is a flow chart of the switch connection switching operation. After the connection state for changing via the connection line 160 for transmitting the external signal during the data transfer between the processor elements is set in the flip-flop 310, the switch connection change signal is sent after the completion of the data transfer between the processor elements. When a signal is generated on the transmission connection line 170, the state of the flip-flop 310 is set to the flip-flop 320, and then the switch element of the processor element connection exchange switch unit is set via the connection line 144 that transmits the switch element connection change signal. To change the connection of the switch. After the change, transfer the data with the new connection.

[0025]

According to the present invention, by making the connection exchange switch part bidirectional, the number of input / output pins in the integrated circuit can be reduced and the device can be made compact, and the switch can have a simple structure. , Parallel that can reduce the element delay due to the switch element, improve the data transfer rate, change the connection state between processors arbitrarily, and adapt the processing contents of a wide range of applications to perform efficient computation A computing mechanism can be provided.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 shows a processor element (P of one embodiment of the present invention.
E) It is a block diagram of the switch element of a connection exchange switch part.

FIG. 3 shows a processor element (P
E) It is a block diagram of the switch element control part of a connection exchange switch part.

FIG. 4 is a processor element (P of one embodiment of the present invention;
It is a connection function diagram of E).

FIG. 5 is a flowchart of a switch connection switching operation according to an embodiment of the present invention.

[Explanation of symbols]

101 to 107 ... Processor element, 120 ... Connection exchange switch section, 1200 to 1204 ... Loop signal line,
144 ... Switch element connection change signal line, 150 ... Switch element control unit, 160 ... External signal, 170 ... Switch connection change signal, 130 ... Processor element (PE),
131-137 ... Input / output port signal lines, 138 ... External interface signal lines, 1310-1314 ... PE connection exchange switch section switch elements, 310-320 ... Switch control section flip-flops.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoru Agawagawa 5-2-1, Omika-cho, Hitachi-shi, Ibaraki Hitachi Information Control System Co., Ltd. (72) Inventor Kiichi Shimizu 5-chome, Omika-cho, Hitachi-shi, Ibaraki 2-1 In Hitachi Information Control System Co., Ltd. (72) Inventor Masashi Suenaga 5-2-1, Omika-cho, Hitachi-shi, Ibaraki Hitachi Co., Ltd. Omika Plant

Claims (5)

[Claims] 1. A plurality of processor elements having at least one interface port, a plurality of signal transmission loop signal lines, an interface port and an external interface port of the plurality of processor elements, and the plurality of signal transmission loop signals. And a switch control device for controlling the opening and closing of the bidirectional switch, the bidirectional switch being provided between the line and the line and connecting and disconnecting the two, respectively. A connection state is controlled so as to bypass the signal transmission loop signal line from the interface port, the interface port from the signal transmission loop signal line, or the interface port, and any processor element among the plurality of processor elements Can be connected A connection control device characterized by being capable. 2. The connection control device according to claim 1, wherein the number X of the signal transmission loop signal lines (X is a natural number) is N, which is the number of interface ports of the processor element and external interface ports. When [Equation 1] The connection control device is selected so as to satisfy the above. 3. The connection control device according to claim 1, wherein a switch that determines the connection between the interface port and the signal transmission loop signal line is configured by a combination of AND gates, and the input side to the output side A connection control device in which the connection control unit is configured on the same integrated circuit. 4. The connection control device according to claim 1, wherein the connection between the interface ports can be changed by synchronizing the switch unit with an external signal. apparatus. 5. The connection control device according to claim 2, wherein the interface port is a parallel transmission path, the number of external terminals of the integrated circuit of the switch unit is reduced, and the data transmission speed between the interface ports is improved. A connection control device characterized by.