JPH076081A - Numeric data processor - Google Patents

Abstract

PURPOSE:To provide the numeric data processor which is improved in data throughput. CONSTITUTION:This processor is equipped with a 1st storage means 10 which stores numeric data to be processed, plural processes 11, 12, and 13 for data processing of the numeric data stored in the 1st storage means 10, a 2nd storage means 20 which store data for update generated by the respective processes 11, 12, and 13, and a data updating means 30 which updates the numeric data stored in the 1st storage means 10 on the basis of the data for update stored in the 2nd storage means 20. The respective processes 11, 12, and 13 store the 2nd storage means 20 with data corresponding to the difference between the numeric data before and after the data processing as the data for update. A data updating means 30 updates the numeric data stored in the 1st storage means 10 on the basis of the data for update each time the data for update data are stored in the 2nd storage means 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical data processing device updated from a plurality of asynchronously operating processes.

[0002]

2. Description of the Related Art As shown in FIG.
Data processing process 1 that performs data processing for 00
When there are a plurality of 01, 102, 103, in order to maintain the consistency of the numerical data 100, it is necessary to prevent the same numerical data 100 from being updated simultaneously by a plurality of data processing processes 101, 102, 103. is there.

Therefore, conventionally, while the numerical data 100 is processed by any one data processing process 101, the data processing is performed on the numerical data 100 by the other data processing processes 102 and 103. To prevent each process 101, 1
The data processing by 02 and 103 was exclusively performed (see Japanese Patent Laid-Open No. 4-340139).

[0004]

In the conventional data processing method, while one data processing process is performing data processing on predetermined numerical data, another data processing process is performing processing on the numerical data. Data processing cannot be performed on the numerical data until the currently executed data processing is completed. Therefore, there are the following problems.

That is, when the operator leaves his seat while data processing is being performed on predetermined numerical data by the interactive application, the data processing prohibited state by another process for the numerical data is long. However, there is a problem that the data processing efficiency is low.

Further, when the frequency of data processing by one data processing process for predetermined numerical data is high, even if another data processing process tries to execute data processing for the numerical data, another data processing process is performed. It is possible that a process cannot perform data processing.

When data processing by one data processing process is performed on predetermined numeric data, information such as the end time of the data processing currently being performed on the numeric data is provided to other data. It is difficult for the treatment process to grasp. Therefore, the start of data processing by other data processing processes may be delayed more than necessary,
In some cases, data processing instructions from other data processing processes have to be generated more times than necessary.

An object of the present invention is to provide a numerical data processing device capable of improving the data processing efficiency.

[0009]

A numerical data processing device according to the present invention includes a first storage means for storing numerical data to be processed, and data for the numerical data stored in the first storage means. A plurality of processes for performing processing, a second storage means for storing update data generated by each of the processes, and the first storage means based on the update data stored in the second storage means Data updating means for updating the numerical data, and each of the processes stores data corresponding to a difference between the numerical data before data processing and after the data processing in the second storage means as update data, and the data updating is performed. The means updates the numerical data stored in the first storage means based on the update data every time the update data is stored in the second storage means. Characterized in that it.

[0010]

When the data processing is confirmed, each process stores the data corresponding to the difference between the numerical data before the data processing and the numerical data after the data processing as the update data in the second storage means.
Data processing by each process is not performed exclusively. Therefore, it is possible to perform data processing by each process at the same time.

The data updating means updates the numerical data stored in the first storing means based on the updating data every time the updating data is stored in the second storing means. Even if data processing by each process is not performed exclusively,
Since the numerical data is updated based on the data (update data) corresponding to the difference between the numerical data before the data processing and the numerical data after the data processing, the consistency of the data is maintained.

[0012]

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows a schematic configuration of a numerical data processing system.

The database 10 stores numerical data representing the stock quantity of a predetermined part. Database 1
It is assumed that the stock quantity data stored in 0 is 50.
The inventory data stored in the database 10 is updated by the three data processing processes 11, 12, and 13.

Data processing by the respective data processing processes 11, 12, and 13 with respect to the inventory quantity data is not exclusively performed. That is, even when the data processing of the inventory data is being executed by one data processing process, the data processing of the inventory data by another data processing process is not prohibited.

Now, three data processing processes 11, 1
It is assumed that the data processing by 2 and 13 are simultaneously performed. Further, at this time, the data processing process 11 performs the data processing for storing 20 parts by the data processing process 1
It is assumed that 2 performs data processing for unloading 3 parts, and the data processing process 13 performs data processing for unloading 10 parts.

Each data processing process 11, 12, 13
Is the numerical data (update data) of the difference between the data after update and the data before update, and
It is sent to the request buffer 20 together with the data for identifying 2 and 13. For example, in the case where the data processing by the data processing process is data processing for stocking a part, the number of stocks is sent to the request buffer 20 as a positive number. Further, when the data processing by the data processing process is the data processing for shipping the parts, the number of shippings is sent to the request buffer 20 as a negative number. The update data is sent from each data processing process 11, 12, 13 to the request buffer 20 after the data processing is confirmed.

In this example, the numerical value +20 from the data processing process 11 and the numerical value − from the data processing process 12.
3 and the numerical value -10 from the data processing process 13 are sent to the request buffer 20 as update data. The process of writing update data from the data processing processes 11, 12, 13 to the request buffer 20 is as follows.
It is done exclusively.

The management unit 30 updates the contents of the database 10 based on the update data stored in the request buffer 20 every time the update data is sent to and stored in the request buffer 20.

Assuming that update data of +20 is first sent from the data processing process 11 to the request buffer 20, the management unit 30 sets the content of the database 10 to 70 (= 50 + 2) based on the data "+20".
Update to 0). Then, the result of whether or not the data update is normally performed is returned to the data processing process 11 of the update data generation source.

Next, assuming that the data for updating -3 is sent from the data processing process 12 to the request buffer 20, the management unit 30 sets the contents of the database 10 to 67 (based on the data "-3"). = 70-3). Then, the result of whether or not the data is updated normally is used as a result of the data processing process 12 of the update data generation source.
Return to.

Next, suppose that update data of -10 is sent from the data processing process 13 to the request buffer 20, the data management unit 30 determines that data "-1".
Based on 0 ”, the contents of the database 10 are changed to 57 (= 6
7-10). Then, the result of whether or not the data update is normally performed is returned to the data processing process 13 of the update data generation source.

According to the above embodiment, when a plurality of processes try to update the inventory quantity data almost at the same time, the processes by the respective processes can be performed in parallel, so that the inventory quantity data update processing efficiency is improved. To do.

In the above embodiment, the data processing target is the inventory data of the parts, but the data processing target may be data other than the inventory data of the parts as long as it is numerical data.

In the above embodiment, the case where there is only one numerical data subject to data processing has been described, but the present invention can be applied to the case where there are a plurality of types of numerical data subject to data processing. .

For example, it is assumed that the database 10 stores the inventory numbers of a plurality of types of parts, and that each of the data processing processes 11, 12, and 13 can perform data processing of the inventory number of each type of parts. In such a case, a request buffer is provided for each component type. When the data processing processes 11, 12, and 13 perform data processing for an arbitrary component type, the data processing processes send update data to the request buffer corresponding to the component type. When the update data is stored in the request buffer, the data management unit 30 stores the database 10 based on the update data.
Among the inventory quantity data stored in the above, the inventory quantity data of the component type corresponding to the request buffer is updated.

[0027]

According to the present invention, when a plurality of processes attempt to update the same numerical data almost at the same time, the processes by the respective processes can be performed in parallel, so that the numerical data can be updated efficiently. improves.

This is particularly effective in a data processing system in which the same numerical data is updated by an interactive application and an application that performs a large number of updates in a short time.

[Brief description of drawings]

FIG. 1 is an electrical block diagram showing a schematic configuration of a numerical data processing system.

FIG. 2 is an electrical block diagram showing a schematic configuration of a conventional numerical data processing system.

[Explanation of symbols]

 10 database 11, 12, 13 data processing process 20 request buffer 30 data management unit

Claims (1)

[Claims] 1. A first storage means for storing numerical data to be processed, a plurality of processes for performing data processing on the numerical data stored in the first storage means, and each of the above processes. The second storage means for storing the generated update data, and the data update means for updating the numerical data stored in the first storage means based on the update data stored in the second storage means, Each process stores the data corresponding to the difference between the numerical data before the data processing and the numerical data after the data processing as the update data in the second storage means, and the data update means stores the update data in the second storage means. A numerical data processing device that updates the numerical data stored in the first storage means based on the update data each time the data is stored.