WO2018051614A1

WO2018051614A1 - Time management system, time management device, synchronous processing device, computing machine, time management method, and computer-readable recording medium

Info

Publication number: WO2018051614A1
Application number: PCT/JP2017/024736
Authority: WO
Inventors: 直樹鍬守
Original assignee: 日本電気株式会社
Priority date: 2016-09-16
Filing date: 2017-07-05
Publication date: 2018-03-22
Also published as: JP6750682B2; CL2019000647A1; JPWO2018051614A1; NZ752136A

Abstract

This time management system 100 is equipped with: synchronous processing devices 10 provided for respective computing machines 200; and a time management device 20 that manages the synchronous processing devices 10. The time management device 20 instructs the synchronous processing devices 10 to change processing speed in accordance with schedule data that specifies, in specific processing to be performed on a target system 300, a place for which a change in processing speed is specified. The synchronous processing devices 10 calculate, when acquisition of time is required in the corresponding computing machines 200, a time that is to be acquired by the computing machines 200 so as to cause processing to be performed at the changed processing speed, on the basis of the instruction given by the time management device 20, and then cause the computing machines 200 to acquire the calculated time.

Description

Time management system, time management device, synchronization processing device, computer, time management method, and computer-readable recording medium

The present invention relates to a time management system, a time management device, a synchronization processing device, a computer, and a time management method for managing time in a system composed of a plurality of computers, and a program for realizing them. The present invention relates to a computer-readable recording medium on which is recorded.

In recent years, in Japan, a comprehensive monitoring system such as seismic activity has been introduced to quickly inform the society of earthquake information. When an earthquake occurs, the comprehensive monitoring system for seismic activity analyzes the observation data captured by the seismometer near the epicenter immediately after the occurrence, estimates the epicenter and magnitude, and based on these, the seismic intensity and The arrival time of the main motion is estimated (for example, refer to Patent Document 1).

And the comprehensive monitoring system such as seismic activity widely distributes the estimated information (seismic source, magnitude, seismic intensity and arrival time) through various media as emergency earthquake bulletin. As a result, in factories, offices, and homes, each person can take evacuation action quickly, reducing the damage caused by the earthquake.

Also, in a comprehensive monitoring system such as seismic activity, it is extremely important to function normally in an emergency. Therefore, it is necessary to periodically execute simulations assuming actual earthquakes in operation. Specifically, such a simulation is performed by operating a comprehensive monitoring system such as seismic activity using data obtained by actual occurrence of an earthquake. In the comprehensive monitoring system for seismic activity and the like, simulations are performed in units of events since various events are processed from the occurrence of an earthquake until the release of various alarms.

By the way, in the comprehensive monitoring system such as seismic activity, the processing time for one event becomes longer as the magnitude of the earthquake becomes larger. For example, in the Great East Japan Earthquake, the processing time in the system is 51 hours from the occurrence of the earthquake until the tsunami warning is canceled. Therefore, in order to perform a simulation assuming such a huge earthquake, a similar time is required. In this case, since the human and time costs for operating the system increase, it is required to shorten the processing time in the simulation.

As a technique for shortening the processing time, for example, the technique disclosed in Patent Document 1 can be cited. Patent Document 1 discloses a technique for accelerating system time by changing a kernel parameter of an operating system. If the technique disclosed in Patent Document 1 is applied to the above-described comprehensive monitoring system such as seismic activity, the system time is accelerated in the system as well, so the processing time is considered to be shortened.

JP-A-4-268906

By the way, since the comprehensive monitoring system such as seismic activity is composed of a plurality of computers, it is necessary to synchronize the computers when applying the technique disclosed in Patent Document 1 to the system. However, the technique disclosed in Patent Document 1 is not premised on use in a plurality of computers, and synchronization is difficult.

In the technique disclosed in Patent Document 1, since the kernel parameters of the operating system are changed, all processing on the operating system is affected in each computer. Furthermore, it is difficult to analyze this effect in each computer. For this reason, in the comprehensive monitoring system such as seismic activity, when there is a part that does not function normally, it is difficult to identify the cause.

An example of the object of the present invention is to solve the above-mentioned problems and reduce the processing time while suppressing the influence of the shortening of the processing time while synchronizing the computers in a system constituted by a plurality of computers. An object of the present invention is to provide a time management system, a time management device, a synchronization processing device, a computer, a time management method, and a computer-readable recording medium.

In order to achieve the above object, a time management system according to one aspect of the present invention includes:
A synchronization processing device provided for each of the plurality of computers provided in the target system;
A time management device for managing the synchronization processing device;
Prepared,
The time management device is:
Instructing the synchronous processing device to change the processing speed based on the schedule data, identifying the location where the processing speed change is specified in the specific processing executed in the target system,
Each of the synchronous processing devices performs processing at the changed processing speed based on the instruction from the time management device when the program being executed on the corresponding computer requests acquisition of time. To calculate the time to be acquired by the program being executed on the computer, and causing the program being executed on the computer to acquire the calculated time,
It is characterized by that.

In order to achieve the above object, a time management device according to one aspect of the present invention includes:
Based on the schedule data that identifies the location where the change in the processing speed is specified in the specific processing executed in the target system having a plurality of computers,
A management processing unit for instructing a change in processing speed to a synchronous processing device provided for each of the plurality of computers;
It is characterized by that.

In order to achieve the above object, a synchronization processing device according to one aspect of the present invention includes:
A processing speed change based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed in the target system from a device that manages time in the target system including a plurality of computers Is further instructed, and the program running on the corresponding computer requests acquisition of time,
Based on the instruction, a synchronization processing unit that calculates a time to be acquired by a program being executed by the computer so that processing is performed at a changed processing speed;
A time distribution unit for causing the program executed on the computer to acquire the calculated time;
It is characterized by having.

In order to achieve the above object, a computer according to one aspect of the present invention is a computer constituting a system including a plurality of computers,
A device for managing the time in the system is instructed to change the processing speed based on the schedule data that identifies the location where the processing speed change is specified in the specific processing executed in the system. If the program running on the computer asks for the time,
Based on the instruction, a synchronous processing unit that calculates a time to be acquired by a program being executed by the computer so that the processing is performed at the changed processing speed;
A time distribution unit that causes a program executed on the computer to acquire the calculated time;
It is characterized by having.

In order to achieve the above object, a time management method according to one aspect of the present invention includes:
A synchronization processing device provided for each of a plurality of computers provided in the target system, and a time management device that manages the synchronization processing device are used,
(A) A processing speed is specified for the synchronous processing device based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed by the target system by the time management device. Instructing to change, and
(B) When the program executed on the corresponding computer requests the acquisition of time by each of the synchronous processing devices, the processing is performed at the changed processing speed based on the instruction from the time management device. Calculating a time to be acquired by a program running on the computer so that the program is executed, and causing the program running on the computer to acquire the calculated time;
It is characterized by having.

In order to achieve the above object, a first computer-readable recording medium according to one aspect of the present invention is provided.
On the computer,
(A) Based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed in a target system including a plurality of computers,
A program including an instruction to execute a step for instructing a change in processing speed to a synchronous processing device provided for each of the plurality of computers is recorded.
It is characterized by that.

Furthermore, in order to achieve the above object, a second computer-readable recording medium according to one aspect of the present invention is provided.
One of the computers in the target system including a plurality of computers,
(A) From a device that manages time in the target system, a processing speed change is specified based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed in the target system. When the execution program that is instructed and further executed on the computer requests acquisition of time,
Based on the instruction, calculating a time to be acquired by the execution program being executed by the computer so that the processing is performed at the changed processing speed; and
(B) causing the program executed on the computer to acquire the calculated time; and
A program including an instruction for executing is recorded.

As described above, according to the present invention, in a system composed of a plurality of computers, the processing time can be shortened while the computers are synchronized, and the influence of the shortening of the processing time can be suppressed. .

FIG. 1 is a block diagram showing a schematic configuration of a time management system according to an embodiment of the present invention. FIG. 2 is a block diagram showing a specific configuration of the time management system in the embodiment of the present invention. FIG. 3 is a flowchart showing the operation of the time management apparatus in the embodiment of the present invention. FIG. 4 is a flowchart showing the operation of the synchronization processing device according to the embodiment of the present invention. FIG. 5 is a block diagram showing a specific example of the time management system in the embodiment of the present invention. FIG. 6 is a block diagram illustrating an example of a computer that implements the time management device and the synchronization processing device according to the embodiment of the present invention.

(Embodiment)
Hereinafter, a time management system, a synchronization processing device, a time management device, a time management method, and a program according to an embodiment of the present invention will be described with reference to FIGS.

[System configuration]
First, a schematic configuration of the time management system in the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a schematic configuration of a time management system according to an embodiment of the present invention.

A time management system 100 according to the present embodiment shown in FIG. 1 is a system for managing time in a target system 300 including a plurality of computers 200. As shown in FIG. 1, the time management system 100 includes a synchronization processing device 10 and a time management device 20. In FIG. 1, reference numeral 210 denotes a program executed on each computer.

The synchronization processing apparatus 10 is provided for each of the plurality of computers 200. The time management device 20 manages the synchronization processing device 10. The time management device 20 is connected to each computer 200 via a network 400.

Further, the time management device 20 instructs the synchronous processing device 10 to change the processing speed based on the schedule data. The schedule data is data that identifies a location where a change in processing speed is specified in a specific process executed in the target system 300.

Each of the synchronous processing devices 10 performs processing at the changed processing speed based on an instruction from the time management device 20 when the program 210 executed on the corresponding computer 200 requests acquisition of time. Thus, the time to be acquired by the program 210 is calculated, and the program 210 is made to acquire the calculated time.

As described above, in this embodiment, the program 210 of each computer 200 configuring the target system 300 can execute processing while changing the processing speed in accordance with an instruction from the time management device 20. Therefore, according to the present embodiment, it is possible to shorten the processing time while synchronizing the computers 200. The processing speed of each program 210 is changed by acquiring the time calculated by the synchronization processing device 10 when the program 210 needs to acquire the time. Therefore, in each computer 200, it is not necessary to change the kernel parameter of the operating system, and the influence on the processing on the operating system due to the shortening of the processing time is suppressed.

Subsequently, a specific configuration of the time management system in the present embodiment will be described with reference to FIG. FIG. 2 is a block diagram showing a specific configuration of the time management system in the embodiment of the present invention.

First, in the example of FIG. 2, the time management system 100 manages the time in the target system 300 when specific time-series data is input to the target system 300. Moreover, as the time series data to be input, for example, pseudo data used for the test of the target system 300 can be cited.

Furthermore, in the example of FIG. 2, the target system 300 includes computers 200a to 200d. Each computer is installed with programs 210a to 210d that operate on the operating system. Although there are four computers shown in FIG. 2, the number of computers is not limited in this embodiment. In the following description, when a specific computer is not designated, it is simply expressed as “computer 200”. Similarly, when there is no specific program, it is simply expressed as “program 210”.

The program 210a installed in the computer 200a, which is one of the computers 200a to 200d, has a function of outputting time series data to each of the other computers 200b to 200d. The program 210a functions as a time series data output unit.

Further, as shown in FIG. 2, in the present embodiment, the time management device 20 includes a schedule data generation unit 21, a management processing unit 22, and a distribution processing unit 23.

First, the schedule data generation unit 21 generates schedule data based on data input by the administrator via the terminal device 30. Specifically, the schedule data generation unit 21 first displays an input screen on the screen of the terminal device 30. The contents of the input data include, for example, the start time for changing the processing speed and the magnification of the speed after the change with respect to the reference speed.

In the present embodiment, the administrator inputs data corresponding to the above-described time series data. That is, the manager inputs the start time of this part and the magnification in this part corresponding to the part where the processing of the time series data is desired to be accelerated.

When the input by the administrator is completed, the schedule data generation unit 21 acquires the data input on the screen, and generates schedule data based on the acquired data. In the present embodiment, the schedule data generation unit 21 generates schedule data including the start time for changing the processing speed and the magnification of the speed after the change with respect to the reference speed.

The management processing unit 22 generates instruction data based on the schedule data. The instruction data includes the system time A in the time management device 20, the start time B and the magnification C included in the schedule data.

In the present embodiment, the management processing unit 22 instructs the distribution processing unit 23 to transmit instruction data before the time series data is transmitted from the computer 200a. When receiving the instruction, the distribution processing unit 23 transmits the instruction data to the computers 200a to 200d. The generation and transmission of the instruction data may be performed, for example, by the number of changes in the processing speed included in the schedule data, or may be performed in a plurality of times according to the progress of the schedule.

As shown in FIG. 2, the synchronization processing device 10 includes a synchronization processing unit 11 and a time distribution unit 12. However, in the present embodiment, the synchronization processing device 10 is constructed by a program that operates on the operating system of each computer.

When the synchronization processing unit 11 receives the transmitted instruction data, it uses the received instruction data and the system time D of the corresponding computer 200 to calculate a time E to be acquired by the program 210 of the computer 200. .

Specifically, the synchronization processing unit 11 first acquires the system time D of the corresponding computer 200. Then, for example, the synchronization processing unit 11 substitutes the system time A, the start time B, the magnification C, and the system time D of the computer 200, which are included in the instruction data, into the following formula 1 or formula 2. The time E to be acquired by the program 210 being executed by the computer 200 is calculated.

(Equation 1)
Time E = (DA) × C + B

(Equation 2)
Time E = (D− (BA)) × C + (BA)

The time distribution unit 12 is calculated when the program 210 being executed on the corresponding computer 200 makes a system call for time acquisition to the operating system (OS) of the computer 200. The time E is returned to the system call.

Specifically, the time distribution unit 12 can be replaced with an original library (for example, Libc (Linux (registered trademark) C Library)) included in the operating system of the computer 200 (hereinafter referred to as “replacement library”). ). Then, when the instruction data is input, the time distribution unit 12 replaces the original library with the replacement library.

The replacement library has a function of hooking the system call and returning the calculated time E when a system call is made. Therefore, when the program 210 executes processing according to the input time-series data and makes a system call for time acquisition to the operating system at that time, the time E is returned by the replacement library. . As a result, the program 210 processes time-series data at the set magnification C.

Of the programs 210a to 210d, the program 210a functions as a time-series data output unit as described above, but the timing of sending time-series data based on the time E calculated by the synchronization processing unit 11 is set. decide. The program 210a outputs time-series data at the determined timing.

[System operation]
Next, the operation of the time management system according to the embodiment of the present invention will be described with reference to FIGS. In this embodiment, the time management method is implemented by operating the time management system 100. Therefore, the description of the time management method in the present embodiment is replaced with the following description of the operation of the time management system 100.

First, the operation of the time management device 20 will be described with reference to FIG. FIG. 3 is a flowchart showing the operation of the time management apparatus in the embodiment of the present invention. In the following description, FIGS. 1 and 2 are referred to as appropriate.

As shown in FIG. 3, in the time management device 20, first, the schedule data generation unit 21 generates schedule data based on data input via the terminal device 30 by the administrator (step A1).

Next, based on the schedule data generated in step A1, the management processing unit 22 includes the system time A, the start time B and the magnification C included in the schedule data for each change in the processing speed. Data is generated (step A2).

Next, the management processing unit 22 instructs the distribution processing unit 23 to transmit instruction data. Thereby, the distribution processing unit 23 transmits the instruction data to the computers 200a to 200d (step A3). Thereby, in each computer, the synchronous processing apparatus 10 receives the transmitted instruction data.

The processing in the time management device 20 is completed by executing Step A3. Steps A1 to A3 are performed every time schedule data is generated.

Subsequently, the operation of the synchronization processing apparatus 10 will be described with reference to FIG. FIG. 4 is a flowchart showing the operation of the synchronization processing device according to the embodiment of the present invention. In the following description, FIGS. 1 and 2 are referred to as appropriate. In the following description, it is assumed that the synchronization processing device receives instruction data transmitted from the time management device 20 as a premise.

As shown in FIG. 4, in the synchronization processing device 10, first, the synchronization processing unit 11 determines whether the program 210 executed on the corresponding computer 200 has requested time acquisition, specifically, the operating system. It is determined whether or not a system call for time acquisition has been made to the system (step B1).

If the result of determination in step B1 indicates that a time acquisition request has not been made, the synchronization processing unit 11 enters a standby state, and executes step B1 again after a predetermined time has elapsed.

On the other hand, as a result of the determination in step B1, if the time acquisition request is made, the synchronization processing unit 11 uses the instruction data transmitted from the time management device 20 and the system time D of the corresponding computer 200. The time E to be acquired by the program 210 being executed by the computer 200 is calculated (step B2). Further, the synchronization processing unit 11 passes the calculated time E to the time distribution unit 12.

Next, the time distribution unit 12 returns the time E calculated in step B2 to the system call (step B3). After execution of step B3, step B1 is executed again.

Further, when step B3 is executed, the program 210 executes processing based on the time E calculated in step B2. That is, the program 210a outputs time series data at the set magnification C. The programs 210b to 210d process time-series data at the set magnification C.

[Concrete example]
Here, a specific example of the time management system in the present embodiment will be described with reference to FIG. FIG. 5 is a block diagram showing a specific example of the time management system in the embodiment of the present invention.

In the example of FIG. 5, the target system is a comprehensive monitoring system 301 such as seismic activity. In this case, the time management system 100 manages the time in the system when a simulation assuming an actual earthquake is performed in the comprehensive monitoring system 301 such as seismic activity.

In the example of FIG. 5, it is assumed that the seismic activity comprehensive monitoring system 301 includes a pseudo data input device 201, an earthquake processing device 202, a tsunami processing device 203, and a seismic intensity processing device 204 as computers. In the present embodiment, the number and types of computers included in the comprehensive monitoring system 301 such as seismic activity are not limited to the example of FIG.

In the example of FIG. 5, time-series data is input to the comprehensive monitoring system 301 such as seismic activity by the pseudo data input device 201. This time series data is the same data as the data input to the comprehensive monitoring system 301 such as seismic activity when an actual earthquake occurs.

Specifically, as time series data, seismograph data (used in the seismic processing device 202), seismic intensity data (used in the seismic intensity processing device 204), tide level data (used in the tsunami processing device 203), various crustal data (Strain meter data, inclinometer data, GPS data, AMEDAS data, air vibration meter data) and the like. Further, the time series data may include at least one of these, or may include two or more.

Therefore, when time-series data is input, the earthquake processing device 202 calculates the epicenter distance, the depth of the epicenter, etc., and outputs the calculation results, as in the case of an actual earthquake. The tsunami processing device 203 calculates the scale of the tsunami, the arrival time of the tsunami, and the like, and outputs the calculation result as in the case of the actual earthquake. Furthermore, the seismic intensity processing device 204 totals the seismic intensity of each place in the same way as when an actual earthquake occurs.

Then, when each device executes processing, the time management system 100 changes the processing speed of each device according to the schedule data. For this reason, for example, when the time-series data is data at the time of a large-scale earthquake and it takes a long time from the occurrence of the earthquake to the end of the tsunami monitoring due to the earthquake, the time required for the simulation is reduced. Is possible.

[Effect of the embodiment]
As described above, according to the present embodiment, in a system constituted by a plurality of computers, it is possible to shorten the processing time while synchronizing the computers. The processing speed of each computer is changed, for example, by replacing a library provided in the operating system of each computer with another library and hooking a system call with this library. For this reason, according to this Embodiment, the influence by shortening of processing time is suppressed.

[program]
The first program in the embodiment of the present invention may be a program that causes a computer to execute steps A1 to A3 shown in FIG. By installing and executing this program in a computer, the time management device 20 in the present embodiment can be realized. In this case, a CPU (Central Processing Unit) of the computer functions as the schedule data generation unit 21, the management processing unit 22, and the distribution processing unit 23, and performs processing.

Further, the first program in the present embodiment may be executed by a computer system constructed by a plurality of computers. In this case, for example, each computer may function as any one of the schedule data generation unit 21, the management processing unit 22, and the distribution processing unit 23, respectively.

Further, the second program in the embodiment of the present invention may be a program that causes a computer to execute steps B1 to B3 shown in FIG. By installing and executing this program on a computer, the synchronization processing apparatus 10 according to the present embodiment can be realized. In this case, a CPU (Central Processing Unit) of the computer functions as the synchronization processing unit 11 and the time distribution unit 12 to perform processing.

Further, the second program in the present embodiment may also be executed by a computer system constructed by a plurality of computers. In this case, for example, each computer may function as either the synchronization processing unit 11 or the time distribution unit 12.

Here, a computer that realizes the time management device 20 or the synchronization processing device 10 by executing the program according to the present embodiment will be described with reference to FIG. FIG. 6 is a block diagram illustrating an example of a computer that implements the time management device and the synchronization processing device according to the embodiment of the present invention.

As shown in FIG. 6, the computer 110 includes a CPU 111, a main memory 112, a storage device 113, an input interface 114, a display controller 115, a data reader / writer 116, and a communication interface 117. These units are connected to each other via a bus 121 so that data communication is possible.

The CPU 111 performs various operations by developing the program (code) in the present embodiment stored in the storage device 113 in the main memory 112 and executing them in a predetermined order. The main memory 112 is typically a volatile storage device such as a DRAM (Dynamic Random Access Memory). Further, the program in the present embodiment is provided in a state of being stored in a computer-readable recording medium 120. Note that the program in the present embodiment may be distributed on the Internet connected via the communication interface 117.

Further, specific examples of the storage device 113 include a hard disk drive and a semiconductor storage device such as a flash memory. The input interface 114 mediates data transmission between the CPU 111 and an input device 118 such as a keyboard and a mouse. The display controller 115 is connected to the display device 119 and controls display on the display device 119.

The data reader / writer 116 mediates data transmission between the CPU 111 and the recording medium 120, and reads a program from the recording medium 120 and writes a processing result in the computer 110 to the recording medium 120. The communication interface 117 mediates data transmission between the CPU 111 and another computer.

Specific examples of the recording medium 120 include a general-purpose semiconductor recording device such as CF (Compact Flash (registered trademark)) and SD (Secure Digital), a magnetic recording medium such as a flexible disk, or a CD- Optical recording media such as ROM (Compact Disk Read Only Memory) are listed.

Note that the synchronization processing device 10 and the time management device 20 in the present embodiment can be realized by using hardware corresponding to each unit instead of a computer in which a program is installed. Further, a part of the synchronization processing device 10 and the time management device 20 may be realized by a program, and the remaining part may be realized by hardware.

Some or all of the above-described embodiments can be expressed by the following (Appendix 1) to (Appendix 19), but is not limited to the following description.

(Appendix 1)
A synchronization processing device provided for each of the plurality of computers provided in the target system;
A time management device for managing the synchronization processing device;
Prepared,
The time management device is:
Instructing the synchronous processing device to change the processing speed based on the schedule data, identifying the location where the processing speed change is specified in the specific processing executed in the target system,
Each of the synchronous processing devices performs processing at the changed processing speed based on the instruction from the time management device when the program being executed on the corresponding computer requests acquisition of time. To calculate the time to be acquired by the program being executed on the computer, and causing the program being executed on the computer to acquire the calculated time,
A time management system characterized by that.

(Appendix 2)
The schedule data includes a start time of change of the processing speed and a magnification of the speed after the change with respect to the reference speed,
The time management device, when instructing to change the processing speed, transmits instruction data including the system time in the time management device, the start time, and the magnification to each of the synchronous processing devices,
Each of the synchronization processing devices calculates a time to be acquired by the computer using the transmitted instruction data and a system time of the corresponding computer.
The time management system according to attachment 1.

(Appendix 3)
Each of the synchronous processing devices is calculated by returning the calculated time to the system call when the program being executed on the corresponding computer makes a system call for time acquisition. Causing the program running on the corresponding computer to acquire the time
The time management system according to appendix 1 or 2.

(Appendix 4)
Time series data to be processed in the target system based on the time acquired from the synchronous processing device provided in the computer by a program executed on one of the plurality of computers The time series data is output to each of the other computers at the determined timing,
Each of the programs being executed in the other computers processes the time-series data based on the time acquired from the synchronous processing device provided in the corresponding computer.
The time management system according to any one of appendices 1 to 3.

(Appendix 5)
Based on the schedule data that identifies the location where the change in the processing speed is specified in the specific processing executed in the target system having a plurality of computers,
A management processing unit for instructing a change in processing speed to a synchronous processing device provided for each of the plurality of computers;
A time management device.

(Appendix 6)
The schedule data includes a start time of change of the processing speed and a magnification of the speed after the change with respect to the reference speed,
The management processing unit generates instruction data including a system time in the time management device, the start time, and the magnification for each of the synchronous processing devices when instructing to change the processing speed.
The time management device further includes a distribution processing unit that transmits the instruction data to the synchronization processing device.
The time management device according to attachment 5.

(Appendix 7)
A processing speed change based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed in the target system from a device that manages time in the target system including a plurality of computers Is further instructed, and the program running on the corresponding computer requests acquisition of time,
Based on the instruction, a synchronization processing unit that calculates a time to be acquired by a program being executed by the computer so that processing is performed at a changed processing speed;
A time distribution unit for causing the program executed on the computer to acquire the calculated time;
A synchronization processing device comprising:

(Appendix 8)
When the program executed on the corresponding computer makes a system call for time acquisition, the synchronization processing unit calculates the time,
The time distribution unit returns the calculated time to the system call so that the calculated time is acquired by a program executed by the corresponding computer.
The synchronization processing device according to appendix 7.

(Appendix 9)
A computer constituting a system including a plurality of computers,
A device for managing the time in the system is instructed to change the processing speed based on the schedule data that identifies the location where the processing speed change is specified in the specific processing executed in the system. If the program running on the computer asks for the time,
Based on the instruction, a synchronous processing unit that calculates a time to be acquired by a program being executed by the computer so that the processing is performed at the changed processing speed;
A time distribution unit that causes a program executed on the computer to acquire the calculated time;
A computer characterized by comprising:

(Appendix 10)
When the program running on the computer makes a system call for time acquisition, the synchronization processing unit calculates the time,
The time distribution unit returns the calculated time to the system call so that the calculated time is acquired by a program executed on the computer.
The computer according to appendix 9.

(Appendix 11)
Based on the time calculated by the synchronization processing unit, the timing for sending time series data to be processed in the system is determined, and the time series data is sent to each of the other computers at the determined timing. The output further includes a time series data output unit,
The computer according to appendix 9 or 10.

(Appendix 12)
A synchronization processing device provided for each of the plurality of computers provided in the target system, and a time management device that manages the synchronization processing device are used,
(A) A processing speed is specified for the synchronous processing device based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed by the target system by the time management device. Instructing to change, and
(B) When the program executed on the corresponding computer requests the acquisition of time by each of the synchronous processing devices, the processing is performed at the changed processing speed based on the instruction from the time management device. Calculating a time to be acquired by a program running on the computer so that the program is executed, and causing the program running on the computer to acquire the calculated time;
A time management method characterized by comprising:

(Appendix 13)
The schedule data includes a start time of change of the processing speed and a magnification of the speed after the change with respect to the reference speed,
In the step (a), when the time management device instructs the change of the processing speed, the system time, the start time, and the magnification in the time management device are set for each of the synchronous processing devices. Send instruction data including,
In the step (b), the time to be acquired by the computer is calculated using the instruction data transmitted by each of the synchronization processing devices and the system time of the corresponding computer.
The time management method according to attachment 12.

(Appendix 14)
In the step (b), when the program executed on the corresponding computer makes a system call for time acquisition by each of the synchronization processing devices, the calculated time is used as the system call. In return, the calculated time is acquired by the program running on the corresponding computer.
The time management method according to appendix 12 or 13.

(Appendix 15)
Time series data to be processed in the target system based on the time acquired from the synchronous processing device provided in the computer by a program executed on one of the plurality of computers When the time series data is output to the other computer at the determined timing,
In the step (a), based on the schedule data generated corresponding to the time-series data by the time management device, the other synchronous processing device is instructed to change the processing speed,
At that time, each of the programs executed in the other computers processes the time-series data based on the time acquired from the synchronous processing device provided in the corresponding computer.
The time management method according to any one of appendices 12 to 14.

(Appendix 16)
On the computer,
(A) Based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed in a target system including a plurality of computers,
A computer-readable recording medium on which a program is recorded, including an instruction for executing a step for instructing a synchronous processing device provided for each of the plurality of computers to change a processing speed.

(Appendix 17)
The schedule data includes a start time of change of the processing speed and a magnification of the speed after the change with respect to the reference speed,
In the step (a), in response to an instruction to change the processing speed, instruction data including a system time in the time management device, the start time, and the magnification is generated for each of the synchronous processing devices. ,
The program is stored in the computer.
(B) The computer-readable recording medium according to appendix 16, further including an instruction for transmitting the instruction data to the synchronous processing device, causing the step to be executed.

(Appendix 18)
One of the computers in the target system including a plurality of computers,
(A) From a device that manages time in the target system, a processing speed change is specified based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed in the target system. When the execution program that is instructed and further executed on the computer requests acquisition of time,
Calculating a time to be acquired by a program being executed by the computer based on the instruction so that the processing is performed at the changed processing speed; and
(B) causing the execution program running on the computer to acquire the calculated time;
The computer-readable recording medium which recorded the program containing the instruction | indication which performs this.

(Appendix 19)
In the step (a), when the execution program being executed on the computer makes a system call for time acquisition, the time is calculated,
In the step (b), the calculated time is returned to the system call so that the calculated time is acquired by an execution program executed by the computer.
The computer-readable recording medium according to appendix 18.

The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

This application claims priority based on Japanese Patent Application No. 2016-182192 filed on September 16, 2016, the entire disclosure of which is incorporated herein.

As described above, according to the present invention, in a system composed of a plurality of computers, the processing time can be shortened while the computers are synchronized, and the influence of the shortening of the processing time can be suppressed. . The present invention is particularly useful when a system composed of a plurality of computers is operated on a trial basis.

DESCRIPTION OF SYMBOLS 10 Synchronization processing apparatus 11 Synchronization processing part 12 Time distribution part 20 Time management apparatus 21 Schedule data generation part 22 Management processing part 23 Distribution processing part 30 Terminal apparatus 100 Time management system 110 Computer 111 CPU
112 Main memory 113 Storage device 114 Input interface 115 Display controller 116 Data reader / writer 117 Communication interface 118 Input device 119 Display device 120 Recording medium 121

Bus

200, 200a to 200d Computer 201 Pseudo data input device 202 Earthquake processing device 203 Tsunami processing device 204 Seismic

intensity processing device

210, 210a-210d Program 300 Target system 301 Total monitoring system for seismic activity 400 Network

Claims

A synchronization processing device provided for each of the plurality of computers provided in the target system;
A time management device for managing the synchronization processing device;
Prepared,
The time management device is:
Instructing the synchronous processing device to change the processing speed based on the schedule data, identifying the location where the processing speed change is specified in the specific processing executed in the target system,
Each of the synchronous processing devices performs processing at the changed processing speed based on the instruction from the time management device when the program being executed on the corresponding computer requests acquisition of time. To calculate the time to be acquired by the program being executed on the computer, and causing the program being executed on the computer to acquire the calculated time,
A time management system characterized by that.
The schedule data includes a start time of change of the processing speed and a magnification of the speed after the change with respect to the reference speed,
The time management device, when instructing to change the processing speed, transmits instruction data including the system time in the time management device, the start time, and the magnification to each of the synchronous processing devices,
Each of the synchronization processing devices calculates a time to be acquired by the computer using the transmitted instruction data and a system time of the corresponding computer.
The time management system according to claim 1.
Each of the synchronous processing devices is calculated by returning the calculated time to the system call when the program being executed on the corresponding computer makes a system call for time acquisition. Causing the program running on the corresponding computer to acquire the time
The time management system according to claim 1 or 2.
Time series data to be processed in the target system based on the time acquired from the synchronous processing device provided in the computer by a program executed on one of the plurality of computers The time series data is output to each of the other computers at the determined timing,
Each of the programs being executed in the other computers processes the time-series data based on the time acquired from the synchronous processing device provided in the corresponding computer.
The time management system according to any one of claims 1 to 3.
Based on the schedule data that identifies the location where the change in the processing speed is specified in the specific processing executed in the target system having a plurality of computers,
A management processing unit for instructing a change in processing speed to a synchronous processing device provided for each of the plurality of computers;
A time management device.
The schedule data includes a start time of change of the processing speed and a magnification of the speed after the change with respect to the reference speed,
The management processing unit generates instruction data including a system time in the time management device, the start time, and the magnification for each of the synchronous processing devices when instructing to change the processing speed.
The time management device further includes a distribution processing unit that transmits the instruction data to the synchronization processing device.
The time management apparatus according to claim 5.
A processing speed change based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed in the target system from a device that manages time in the target system including a plurality of computers Is further instructed, and the program running on the corresponding computer requests acquisition of time,
Based on the instruction, a synchronization processing unit that calculates a time to be acquired by a program being executed by the computer so that processing is performed at a changed processing speed;
A time distribution unit for causing the program executed on the computer to acquire the calculated time;
A synchronization processing device comprising:
When the program executed on the corresponding computer makes a system call for time acquisition, the synchronization processing unit calculates the time,
The time distribution unit returns the calculated time to the system call so that the calculated time is acquired by a program executed by the corresponding computer.
The synchronization processing device according to claim 7.
A computer constituting a system including a plurality of computers,
A device for managing the time in the system is instructed to change the processing speed based on the schedule data that identifies the location where the processing speed change is specified in the specific processing executed in the system. If the program running on the computer asks for the time,
Based on the instruction, a synchronous processing unit that calculates a time to be acquired by a program being executed by the computer so that the processing is performed at the changed processing speed;
A time distribution unit that causes a program executed on the computer to acquire the calculated time;
A computer characterized by comprising:
When the program running on the computer makes a system call for time acquisition, the synchronization processing unit calculates the time,
The time distribution unit returns the calculated time to the system call so that the calculated time is acquired by a program executed on the computer.
The computer according to claim 9.
Based on the time calculated by the synchronization processing unit, the timing for sending time series data to be processed in the system is determined, and the time series data is sent to each of the other computers at the determined timing. The output further includes a time series data output unit,
The computer according to claim 9 or 10.
A synchronization processing device provided for each of the plurality of computers provided in the target system, and a time management device that manages the synchronization processing device are used,
(A) A processing speed is specified for the synchronous processing device based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed by the target system by the time management device. Instructing to change, and
(B) When the program executed on the corresponding computer requests the acquisition of time by each of the synchronous processing devices, the processing is performed at the changed processing speed based on the instruction from the time management device. Calculating a time to be acquired by a program running on the computer so that the program is executed, and causing the program running on the computer to acquire the calculated time;
A time management method characterized by comprising:
The schedule data includes a start time of change of the processing speed and a magnification of the speed after the change with respect to the reference speed,
In the step (a), when the time management device instructs the change of the processing speed, the system time, the start time, and the magnification in the time management device are set for each of the synchronous processing devices. Send instruction data including,
In the step (b), the time to be acquired by the computer is calculated using the instruction data transmitted by each of the synchronization processing devices and the system time of the corresponding computer.
The time management method according to claim 12.
In the step (b), when the program executed on the corresponding computer makes a system call for time acquisition by each of the synchronization processing devices, the calculated time is used as the system call. In return, the calculated time is acquired by the program running on the corresponding computer.
The time management method according to claim 12 or 13.
Time series data to be processed in the target system based on the time acquired from the synchronous processing device provided in the computer by a program executed on one of the plurality of computers When the time series data is output to the other computer at the determined timing,
In the step (a), based on the schedule data generated corresponding to the time-series data by the time management device, the other synchronous processing device is instructed to change the processing speed,
At that time, each of the programs executed in the other computers processes the time-series data based on the time acquired from the synchronous processing device provided in the corresponding computer.
The time management method according to any one of claims 12 to 14.
On the computer,
(A) Based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed in a target system including a plurality of computers,
A computer-readable recording medium on which a program is recorded, including an instruction for executing a step for instructing a synchronous processing device provided for each of the plurality of computers to change a processing speed.
The schedule data includes a start time of change of the processing speed and a magnification of the speed after the change with respect to the reference speed,
In the step (a), in response to an instruction to change the processing speed, instruction data including a system time in the time management device, the start time, and the magnification is generated for each of the synchronous processing devices. ,
The program is stored in the computer.
The computer-readable recording medium according to claim 16, further comprising: (b) transmitting the instruction data to the synchronization processing device, causing the step to be executed.
One of the computers in the target system including a plurality of computers,
(A) From a device that manages time in the target system, a processing speed change is specified based on schedule data that identifies a location where a change in processing speed is specified in a specific process executed in the target system. When the execution program that is instructed and further executed on the computer requests acquisition of time,
Calculating a time to be acquired by a program being executed by the computer based on the instruction so that the processing is performed at the changed processing speed; and
(B) causing the execution program running on the computer to acquire the calculated time;
The computer-readable recording medium which recorded the program containing the instruction | indication which performs this.
In the step (a), when the execution program being executed on the computer makes a system call for time acquisition, the time is calculated,
In the step (b), the calculated time is returned to the system call so that the calculated time is acquired by an execution program executed by the computer.
The computer-readable recording medium according to claim 18.