JPH0689182A - Down load device for data flow processor - Google Patents

Abstract

PURPOSE:To make the whole of a device simple, small in sized, and low in cost by providing the down load device for data flow processor which loads down packets required for execution of a data flow processor. CONSTITUTION:In a down load device 30 for data flow processor, the natural number generated in the ascending order by a counter part 31 and the number of packets required for execution of a data flow processor 10 which is set by a setting part 32 are compared with each other by a comparing part 33; and at the time of coincidence, packets stored in a storage part 35 are loaded down to the data flow processor 10 by the indication from a control part 34. By this device, only the required number of packets required for execution of the data flow processor 10 are loaded down.

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 download device, and more particularly to a data flow processor download device for simplifying and downsizing the entire device.

[0002]

2. Description of the Related Art A data flow processor, when packets are sequentially input, executes a program stored therein to perform processing. FIG. 2 shows the functional configuration of the data flow processor. The packet is data 2 which is processed by the data flow processor as shown in FIG.
1 and an instruction 2 for instructing processing in the data flow processor
It is configured by a tag 23 including 2.

The flow of processing when the packet 20 is input to the data flow processor will be described below.

As shown in FIG. 3, 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 packet 20 is input to the input / output control unit 11 of the data flow processor 10 and then sent to the program storage unit 12, where an instruction 22 to be executed next and a destination number are obtained. Packet 20 in the waiting section 13
If the instruction 22 included in the packet is an operation instruction with another packet 20, the packet 20 is transferred to the waiting unit 1.
In 3 the other packet 20 to be the partner of calculation is waited for. When another packet 20 to be operated is fetched, it becomes a pair and is sent to the operation processing unit 14 to execute the operation. This instruction 2
If 2 is not an operation command for another packet 20, the waiting unit 13 is passed through, and the operation processing unit 14 executes an instruction 22.
Is executed. The contents of the packet 20 are updated when it is executed by the arithmetic processing unit 14, and the updated packet 20 is sent to the input / output control unit 11 and is output according to the contents of the packet 20 or is recalculated. It is sent to the program storage unit 12.

Further, the program can be stored in the program storage section 12 of the data flow processor 10 by inputting the packet 20. Packet 20
If the instruction 22 in the above is a program load instruction, the program storage unit 12 stores the packet 20.

Thus, the data flow processor 10
Then, the packets 20 are sequentially input to execute a program for a specific process or store the program.

By the way, conventionally, in order to sequentially input the packets 20 to the data flow processor 10, as a download device thereof, a process as a host computer was made to cause the data flow processor 10 to download the packets 20.

[0009]

However, if another computer is used to download a packet to the data flow processor as described above, it becomes difficult not only to downsize the entire apparatus, but also to reduce capital investment. There was a problem that it was costly.

The present invention has been made to solve the above problems, and its purpose is to simplify and miniaturize the entire apparatus using a data flow processor, and to reduce the cost of equipment investment. In order to reduce the number of packets, it is an object of the present invention to provide a data flow processor download device for downloading packets required to execute the data flow processor.

[0011]

In order to achieve the above object, the download device of the data flow processor according to the present invention is necessary for executing the data flow processing and the counter means for generating natural numbers in ascending order. A packet number setting means for setting a proper packet number, a comparing means for comparing the natural number with the packet number, a download instructing means for issuing an instruction to download a packet when the natural number is less than or equal to the packet number, It is characterized by including storage means for storing a packet to be downloaded to the data flow processor, and download means for downloading the packet corresponding to the natural number to the data flow processor according to an instruction from the download instruction means.

[0012]

In the data flow processor downloading apparatus according to the present invention as described above, the comparing means compares the natural number generated by the counter means with the packet number set in the packet number setting means. As a result of this comparison, when the natural number is less than or equal to the number of packets, the download instruction means issues an instruction to the download means to download a predetermined packet. The download means takes out a predetermined packet stored in the storage means and downloads it to the data flow processor according to the instruction from the download instruction means.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described with reference to the following drawings.

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

A feature of this embodiment is that the download device 30 in this embodiment is provided upstream of the data flow of the data flow processor 10 as shown in FIG. As a result, downloading to the data flow processor can be performed without using a host computer.

In this embodiment, as shown in FIG. 1, a data flow processor download device 30 according to the present invention is provided upstream of the data flow of the data flow processor 10. When the packet 20 shown in FIG. 3 is input from the download device 30, the processing program is executed.

The download device 30 includes a counter unit 31 for generating natural numbers in ascending order from 1, a setting unit 32 for setting the number of packets 20 required to execute the data flow processor 10, and a counter unit 31. A comparison unit 33 that compares the generated natural number with the number of packets set in the setting unit 32; a control unit 34 that issues a download instruction when the natural number is less than or equal to the number of packets as a result of comparison by the comparison unit 33; The storage unit 35 is configured to extract the stored packet 20 according to an instruction from the control unit 34 and download the packet 20 to the data flow processor 10. The data flow processor 10 is exactly the same as the conventional device shown in FIG.

Next, the data and the flow of processing in this embodiment will be described.

First, in this embodiment, before downloading, the number of packets required for executing the data flow processor 10 is set and stored in the setting unit 32 from an input unit (not shown). When the setting is completed, the counter unit 31 starts to generate a natural number. Here, the counter unit 31 may be started by an instruction from an external device (not shown) even when the setting in the setting unit 32 is not completed. The generated natural number is simultaneously sent to the comparison unit 33 and the storage unit 35 by the counter unit 31. When the comparison unit 33 receives the natural number from the counter unit 31, it obtains the number of packets set in the setting unit 32, compares the natural number with the packet number, and when the condition that the natural number is less than or equal to the packet number is met. Then, the comparison unit 33 notifies the control unit 34 that the conditions match. Upon receiving the notification that the conditions match, the control unit 34 instructs the storage unit 35 to download the packet 20 to the data flow processor 10. The storage unit 35 receives an instruction from the control unit 34,
The natural number sent from the counter unit 31 is made to correspond to the address where the packet 20 to be downloaded is stored, and the packet 20 is extracted. Then, the packet 20 is downloaded to the data flow processor 10.

In the present embodiment, such processing is repeated until the natural number generated in the ascending order by the counter unit 31 and the number of packets set in the comparison unit 33 become equal.
In other words, by using the download device 30 according to the present embodiment, it is possible to perform downloading to the data flow processor without using a host computer. As a result, the configuration of the entire device can be simplified and downsized.

In the above embodiment, the counter section 31 generates natural numbers in ascending order.
It is also possible to specify the number of packets to be downloaded by giving a function equivalent to that of the setting unit 32 and generating a natural number in descending order.

[0022]

As described above, according to the present invention, it is possible to perform downloading to the data flow processor without using a host computer.

As a result, the structure of the entire apparatus can be simplified and downsized, and the cost of equipment investment such as computer purchase can be reduced.

[Brief description of drawings]

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

FIG. 2 is an explanatory diagram showing a data flow processor.

FIG. 3 is a diagram showing a packet format.

[Explanation of symbols]

 10 data flow processor 20 packet 30 download device 31 counter unit 32 setting unit 33 comparing unit 34 control unit 35 storage unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takao Nakamura 5-1-1 Shimorenjaku, Mitaka City, Tokyo Japan Radio Co., Ltd.

Claims (1)

[Claims] 1. A counter means for generating natural numbers in ascending order, a packet number setting means for setting the number of packets required for executing data flow processing, a comparing means for comparing the natural number with the packet number, When the natural number is less than or equal to the number of packets, the download instruction means for issuing an instruction to download the packet, the storage means for storing the packet to be downloaded to the data flow processor, and the instruction of the download instruction means Download means for downloading the corresponding packet to the data flow processor, and a download device for the data flow processor.