JPH0652334A - Data flow processor processing changing device - Google Patents

Abstract

PURPOSE:To provide the data flow processor processing changing device which changes processing without performing any fundamentally unnecessary processing on a data flow processor in the case of changing processing. CONSTITUTION:A data flow processor processing changing device 30 is composed of a counter part 31 to count the number of input data, destination number selection part 32 to select a destination number corresponding to the number of input data, and tag addition part 34 to prepare a packet. When the destination number corresponding to the count value of input data is selected by this device 30, the program of processing to be executed at a data flow processor 10 is changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data flow processor process changing device, and more particularly to a data flow processor process changing device for reducing the processing performed by the data flow processor.

[0002]

2. Description of the Related Art A data flow processor, when packets are sequentially input, executes a program stored therein to perform processing. At this time, if the packet includes an operation instruction (addition, multiplication, etc.), the packet is temporarily stored in the data flow processor until the packet to be operated is read, and when both are aligned, the operation is performed. .

A conventional process flow using this data flow processor will be described below. 2 shows a functional configuration using the data flow processor, and FIG. 3 shows a packet 20 processed by the data flow processor.

As shown in FIG. 2, the data flow processor 10 includes an input / output control unit 11 for controlling input / output,
A program storage unit 12 in which a program to be executed by the data flow processor 10 is stored, in the case of an operation instruction by a plurality of packets, in order to temporarily store the previously read packet until the packet to be operated is read. It is composed of a waiting section 13 which is an area of and a calculation processing section 14 which executes a calculation.

The data flow processor 10 uses packet 2
The processing is performed by executing the program stored in the program storage unit 12 based on the destination number 23 and the command 24 included in 0. The destination number 23 stores the number corresponding to the address of the program to be executed. Normally, one data flow processor 10 performs a single process, so that the destination number 23 of an input packet may be assigned the same arbitrary number (for example, zero) at all times.

Processing is performed by inputting an input data string ... As shown in FIG. 4 to such a data flow processor 10. This input data 21 is first input to the tag addition unit 15. The tag adding unit 15 adds a tag 22 to this input data 21 to create a packet 20. The tag 22 includes the destination number 23 and the instruction 2 described above.
4 and a generation identifier indicating the generation of the input data 21 are included.

The packet 20 created by the tag adding unit 15
Is sent to the program storage unit 12 after being input to the input / output control unit 11 of the data flow processor 10, where the instruction 24 and the destination number 23 to be executed next are obtained. In the waiting section 13, the command 2 included in the packet 20
If 4 is an operation instruction with another packet 20, the waiting unit 13 waits for another packet 20 to be the operation partner. Other packet 2 that is the calculation partner
When 0 is fetched, it becomes a pair and is sent to the arithmetic processing unit 14 to execute the arithmetic. This command 24 causes another packet 20
If it is not the operation instruction of, the instruction is passed through the waiting section 13 and the operation processing section 14 executes the instruction 24. In the arithmetic processing unit 14, the packet 2
0 is updated. The updated packet 20 is sent to the input / output control unit 11 and is output according to the destination number 23 written in the program storage unit 12 in the packet 20, or is sent to the program storage unit 12 for recalculation. To be

In this way, the data flow processor 10 executes a program for specific processing.

By the way, in such a data flow processor 10, the processing is changed according to the range of the input data string. Data flow processor 1
The method of changing the processing at 0 is shown below.

FIG. 4 shows the relationship between the range of the input data string and the processing. In this example, the data flow processor 10 performs the processing 1 on the first input data and the processing 1 on the second input data. The process 1 is applied to the fifth input data, and so on. Similarly, the process 2 is applied to the 6th input data, the process 2 is applied to the 7th input data, and the process 2 is applied to the 10th input data. Then, processing 1 is performed on the 11th to 15th input data, processing 2 is performed on the 16th to 20th input data, and so on, processing 1 and processing 2 are repeated in the range of five consecutive input data.

Conventionally, in order to change the processing in the data flow processor 10 as described above, the number of packets 20 input from the tag addition unit 15 in the data flow processor 10 is counted, and the range of the counted value is determined. The process 1 or the process 2 was executed by asking whether it is included. Since there is no device for setting a different destination number 23, the packet 20 was created by assigning the same destination number to all input data, as described above.

That is, if the count value of the packet 20 input and counted in the data flow processor 10 is 1 to 5, the process 1 is executed, and if the count value is 6 to 10, the process 2 is executed. The processing to be executed in the data flow processor 10 is changed such that the processing 1 is executed in the case of 11 to 15.

[0013]

However, as described above, the process of counting the number of packets input to the data flow processor in the data flow processor and changing the process according to the counted value is included.
There was a problem that the execution time required for the calculation becomes long.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a data flow processor with an unnecessary process when a plurality of processes are performed by one data flow processor. The purpose is to change the processing executed by the data flow processor without performing the processing.

[0015]

In order to achieve the above objects, a data flow processor process changing device according to the present invention includes a counter section for counting a series of input data to be sequentially supplied to a data flow processor, A destination number selection unit that selects the destination number corresponding to the number of input data counted by the counter unit from a table in which the destination number of the program of the process executed in the data flow processor is stored, and the destination number. And a tag adding unit that adds a tag including the tag to the input data to create a packet to be passed to the data flow processor.

In such a configuration, the data flow processor process changing device according to the present invention is characterized in that the destination number for changing the process executed in the data flow processor is selected according to the counting result. .

[0017]

In the data flow processor process changing device according to the present invention as described above, the destination number of the process corresponding to the number of input data is selected by the destination number selecting section.
The tag adding unit creates a packet by adding a tag including the destination number to the input data. The data flow processor may execute the process corresponding to the destination number written in the packet sent from the data flow processor process changing device, and perform the process of counting the number of packets input to the data flow processor. The processing executed by the data flow processor can be changed without the need.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described with reference to the following drawings. In this embodiment, the same elements as those in the conventional example are designated by the same reference numerals.

FIG. 1 shows a data flow processor process changing device using the data flow processor in this embodiment.

The feature of this embodiment is that, as shown in FIG. 1, the number of input data is counted in the data flow processor process changing device 30, and the destination number corresponding to the number is selected. That is what I did. That is, it means that the data flow processor process changing device 30 in this embodiment performs the process of counting the number of packets input in the conventional data flow processor 10. Then, the data flow processor 1 is assigned to the destination number 23 in the packet 20 shown in FIG.
This is to change the process by setting the destination number of the program of the process executed by 0 and passing the packet 20 to the data flow processor 10. This allows
According to this embodiment, the load on the data flow processor 10 can be reduced.

In this embodiment, as shown in FIG. 1, the data flow processor process changing device 3 according to the present invention is provided upstream in the process flow of the data flow processor 10.
0 is provided, and the data flow processor 10 executes the processing program when the packet 20 shown in FIG. 3 is input from the data flow processor process changing device 30.

Data Flow Processor Process Changer 30
Includes a counter unit 31 that counts the number of a series of input data sequentially processed in the data flow processor 10.
And a destination number selecting unit 32 that obtains the number of input data counted by the input data and counter unit 31 and selects a destination number corresponding to the number of input data, and input data and a destination number from the destination number selecting unit 32. And a tag adding unit 34 that creates a packet 20 by adding a tag to the input data. As shown in FIG. 3, the tag 22 has a destination number 23,
The instruction 24 and the generation identifier are included. Further, the destination number selection unit 32 has a destination number storage unit 33 in which the destination number of the program of the process executed in the data flow processor 10 is stored. The data flow processor 10 is exactly the same as the conventional device shown in FIG.

Next, the flow of processing in this embodiment will be described. In this embodiment, as in the conventional example, the input data string shown in FIG. 4 is input.

In the present embodiment, a series of input data ... As shown in FIG. The counter unit 31 counts the input data, and passes the count value and the input data itself to the destination number selection unit 32. In the destination number selection unit 32, the destination number corresponding to the number of input data, in the case of the 1st to 5th or 11th to 15th input data included in the range 1 according to FIG. 4, the destination number 1 stored in the destination number storage unit 33. However, the 6th to 10th or 16, 17, ...
In the case of the second input data, the destination 2 stored in the destination number storage unit 33 is selected as the destination number. The selected destination number and input data are stored in the tag adding unit 34.
The packet 20 is created by the tag adder 34 based on the destination number and the input data.

Then, when the packet 20 to which the destination number 23 of the destination 1 is added is input to the data flow processor 10, the program of processing 1 in the destination 1 is executed. Similarly, when the packet 20 to which the destination number 23 of the destination 2 is added is input to the data flow processor 10, the program of the process 2 in the destination 2 is executed.

As described above, in the processing method according to this embodiment, the processing executed by the data flow processor 10 is changed by selecting the destination number. That is, it is not necessary for the data flow processor 10 to perform the process of counting the number of packets 20 input by the program of the data flow processor 10 and changing the process according to the count value, and the load on the data flow processor 10 is reduced. Can be made.

In the above embodiment, two destination numbers can be selected in the destination number storage unit 33, but n destination numbers from a destination number setting unit (not shown) are stored in the destination number storage unit 33. It is also possible to change the number of processes to n in the data flow processor 10 by storing it in the data flow processor 10.

Further, in the above embodiment, the range of five input data in the input data string has been explained, but this range can be arbitrarily set in the destination number selecting section 32, that is, the data flow for each input data. It is also possible to change the program of the processing executed by the processor 10.

[0029]

As described above, according to the present invention, the destination number of the process corresponding to the counting result of the input data is selected,
Since the processing of changing the processing in the data flow processor is performed by the data flow processor processing changing device, the processing of the data flow processor is reduced,
It is possible to shorten the execution time required for the processing that should be originally performed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of a data flow processor process changing device according to the present invention.

FIG. 2 is an explanatory diagram showing a usage example of a conventional data flow processor.

FIG. 3 is a diagram showing a packet format.

FIG. 4 is an explanatory diagram showing a relationship between a range of an input data string and processing.

[Explanation of symbols]

 10 data flow processor 20 packet 30 data flow processor process changing device 31 counter unit 32 destination number selection unit 33 destination number storage unit 34 tag addition unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyotaka Nagamura 5-1-1, Shimorenjaku, Mitaka-shi, Tokyo Within Japan Radio Co., Ltd. (72) Inventor Takao Nakamura 5-1-1, Shimorenjaku, Mitaka-shi, Tokyo Japan Radio Incorporated (72) Inventor Shinichi Yoshida 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Inventor Soichi Miyata 22-22, Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Inventor Gouji Muramatsu 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka Prefecture

Claims (1)

[Claims] 1. A counter unit that counts a series of input data to be sequentially supplied to a data flow processor, and a counter unit that counts the destination number of a program of a process executed in the data flow processor by a counter unit. A destination number selection unit that selects the destination number corresponding to the number of input data that has been input, and a tag addition unit that adds a tag including the destination number to the input data and creates a packet to be passed to the data flow processor. A data flow processor process changing device, comprising: selecting the destination number for changing a process executed in the data flow processor according to a counting result.