JP5601024B2 - Power leveling method, system and program - Google Patents

Description

  The present technology relates to a technology for controlling power supplied from a commercial power source.

  In recent years, companies that provide information services have increasingly managed large-scale data centers. In the data center, it is necessary to prepare not only a server for processing, but also air-conditioning equipment such as a cooling fan and an emergency battery, and many other devices that consume power. Increase. The increase in power consumption is a heavy burden for data center managers and the like, and a technique for suppressing power received from a commercial power source is required.

  On the other hand, there is a conventional technique for distributing the processing load of a computer. Specifically, in a system composed of a plurality of computers, when processing is performed in the computers, CPU consumption time, memory usage, number of database accesses, and the like are recorded as statistical information. When there is a new processing request, the processing load required for processing this processing request is predicted using statistical information, and the processing request is determined based on the predicted processing load and the current processing load status. Allocate to one of the computers.

  However, even if the processing load of the computer is distributed as in the above-described conventional technology, the power received from the commercial power supply as a whole cannot always be suppressed.

JP 2002-140313 A

  Therefore, an object of the present technology is to provide a technology for suppressing power supplied from a commercial power supply to a system including a plurality of servers.

  In the power leveling method, when a process execution request including a process type identifier is received from a user terminal, the process type identifier and process power consumption data that is power consumed by executing the process type process For each of a plurality of servers capable of executing processing in response to a processing execution request from a user terminal, and a step of identifying processing power consumption corresponding to the received processing type identifier Using the server table storing the server power consumption data that is the power consumed by the server and the threshold value of the maximum power supplied from the commercial power supply to the server, the specified processing power consumption is added to the server power consumption. And a search step for searching for a server that satisfies the condition that the threshold is not exceeded, and a server that satisfies the condition in the search step is identified. If the determines the server as execution server, and a first determination step of transmitting a process execution request to the executing server.

  It becomes possible to suppress power supplied from a commercial power source to a system including a plurality of servers.

FIG. 1 is a configuration diagram of a system according to an embodiment of the present technology. FIG. 2 is a functional block diagram of the leveling control server. FIG. 3 is a functional block diagram of the job processing server. FIG. 4 is a functional block diagram of the power feeding apparatus. FIG. 5 is a functional block diagram of the job distribution server. FIG. 6 is a diagram illustrating an example of data stored in the server table. FIG. 7 is a diagram illustrating an example of data stored in the job table. FIG. 8 is a diagram illustrating an example of data stored in the individual target value table. FIG. 9 is a diagram illustrating an example of data stored in the battery capacity table. FIG. 10 is a diagram illustrating an example of data stored in the prediction table. FIG. 11 is a diagram illustrating a processing flow of processing for setting an individual target value in the power supply apparatus. FIG. 12 is a diagram for explaining the power consumption and the remaining battery level of the entire system. FIG. 13 is a diagram illustrating a processing flow of job distribution processing. FIG. 14 is a diagram illustrating a processing flow of server specifying processing. FIG. 15 is a diagram illustrating a processing flow of job distribution processing. FIG. 16 is a diagram for explaining the power consumption and the remaining battery level of the job processing server. FIG. 17 is a diagram for explaining the power consumption and the remaining battery level of the job processing server. FIG. 18 is a functional block diagram of a computer.

  FIG. 1 shows a configuration diagram of a system according to the present embodiment. For example, a job distribution server 3 and a client terminal 7 are connected to a network 1 that is the Internet. A leveling control server 5, a job processing server 11A, and a job processing server 11B are connected to the job distribution server 3. The leveling control server 5 is connected to a job processing server 11A and a job processing server 11B, and a power supply device 13A and a power supply device 13B which are, for example, UPS (Uninterruptible Power Supply). Further, for example, the commercial power supply 9 that is a power receiving facility supplies power to the power feeding device 13A and the power feeding device 13B. The power supply apparatus 13A supplies power to the job processing server 11A, and the power supply apparatus 13B supplies power to the job processing server 11B. In the example of FIG. 1, only two job processing servers and power supply apparatuses are illustrated, but the number is not limited. A plurality of job processing servers may be connected to one power supply apparatus. In the present embodiment, a group of processes executed by the job processing server for achieving a specific purpose is called a “job”.

  FIG. 2 shows a functional block diagram of the leveling control server 5. The leveling control server 5 includes a communication unit 51, a management data storage unit 53, a leveling control unit 55, a processing result storage unit 57, and a job identifier storage unit 59. Further, the leveling control unit 55 includes a power consumption specifying unit 551 and a server specifying unit 553.

  The communication unit 51 receives power consumption and processing load data from the job processing servers 11 </ b> A and 11 </ b> B, receives battery remaining data from the power supply apparatuses 13 </ b> A and 13 </ b> B, and updates the management data storage unit 53. . Further, the communication unit 51 receives a leveling control request including a job identifier from the job distribution server 3 and performs processing for storing the job identifier in the job identifier storage unit 59. Based on the data stored in the management data storage unit 53 and the job identifier storage unit 59, the power consumption specifying unit 551 and the server specifying unit 553 of the leveling control unit 55 perform a server specifying process, which will be described later. Is stored in the processing result storage unit 57.

  FIG. 3 shows a functional block diagram of the job processing servers 11A and 11B. The job processing servers 11A and 11B include a communication unit 111, a job execution unit 113, a server data storage unit 115, a power consumption monitoring unit 117, and a processing load monitoring unit 119.

  The power consumption monitoring unit 117 measures the power consumption of the job processing server 11A (or job processing server 11B), for example, every time a predetermined time elapses, and stores power consumption data in the server data storage unit 115. The processing load monitoring unit 119 measures the processing load of the job processing server 11A (or job processing server 11B), for example, every time a predetermined time elapses, and stores the processing load data in the server data storage unit 115. The communication unit 111 transmits the power consumption and processing load data stored in the server data storage unit 115 to the leveling control server 5. In addition, the communication unit 111 transmits power consumption data stored in the server data storage unit 115 to the power supply apparatuses 13A and 13B. When the communication unit 111 receives a job execution request from the job distribution server 3, the communication unit 111 instructs the job execution unit 113 to execute the job. The job execution unit 113 notifies the communication unit 111 of the job execution result. Then, the communication unit 111 transmits the job execution result to the job distribution server 3.

  FIG. 4 shows a functional block diagram of the power feeding devices 13A and 13B. The power feeding devices 13A and 13B include a communication unit 1301, a battery data storage unit 1303, a data storage unit 1305, a remaining battery charge monitoring unit 1307, a charge / discharge control unit 1309, and a battery 1311.

The battery remaining amount monitoring unit 1307 measures the remaining amount of the battery 1311 and stores the remaining amount data in the battery data storage unit 1303. The communication unit 1301 transmits the remaining battery data stored in the battery data storage unit 1303 to the leveling control server 5. In addition, the communication unit 1301 receives a charge / discharge control request including an individual target value from the leveling control server 5, receives power consumption data from the job processing servers 11 </ b> A and 11 </ b> B, and stores the data in the data storage unit 1305. The charge / discharge control unit 1309 controls charging / discharging of the battery 1311 according to the individual target value and power consumption data stored in the data storage unit 1305.

FIG. 5 shows a functional block diagram of the job distribution server 3. The job distribution server 3 receives the job processing request from the client terminal 7, receives the job processing request from the job processing servers 11 </ b> A and 11 </ b> B, and receives the job processing result from the job processing servers 11 </ b> A and 11 </ b> B and transfers it to the client terminal 7. A communication unit 31 that performs processing and the like, and a job distribution unit 33 that instructs the communication unit 31 to distribute jobs based on a job distribution request received from the leveling control server 5 are included.

FIG. 6 shows an example of a server table stored in the management data storage unit 53. In the example of FIG. 6, the job processing server identifier column, the job processing server power consumption column, the job processing server processing load column, the power supply device identifier column, the power supply device remaining battery level, and the like. Column. For example, the column in the first row in FIG. 6 indicates that the job processing server with the identifier “Sj ₁ ” is supplied with power from the power supply apparatus with the identifier “B ₁ ”. The identifiers of the job processing server and the power supply apparatus are, for example, IP addresses.

  FIG. 7 shows an example of a job table stored in the management data storage unit 53. The example of FIG. 7 includes a job identifier column, a job power consumption column, and a job processing load column. The power consumption of the job is the power consumed by executing the job, and the processing load of the job is the load (for example, CPU usage rate) applied by executing the job. The job identifier is, for example, a URL (Uniform Resource Locator). Note that the job identifier in the present embodiment is an identifier of the “type” of the job.

  FIG. 8 shows an example of the individual target value table stored in the management data storage unit 53. The example of FIG. 8 includes a job processing server column and an individual target value column. The individual target value is the maximum power (peak value) supplied from the commercial power source to the job processing server in a specific period (for example, one day).

  FIG. 9 shows an example of a battery capacity table stored in the management data storage unit 53. The example of FIG. 9 includes a job processing server column and a battery capacity column.

  FIG. 10 shows an example of a prediction table stored in the management data storage unit 53. In the example of FIG. 10, a feature column, a date / time column, and a power column are included. In the example of FIG. 10, when the day on which the processing of this embodiment is performed falls on Monday, the average value of the total power consumption of the job processing server 11A and the job processing server 11B for 30 minutes from 0:00 Is 4.01053 kW, 4.0858 kW in 30 minutes from 0:30, and 4.1165 kW in 30 minutes from 23:30. This data is generated by, for example, averaging the power consumption data of days having common characteristics. In the example of FIG. 10, day of the week data is stored as a feature, but may be, for example, month or event data, or a combination thereof. Further, power consumption at shorter time intervals may be stored.

  Next, processing contents of the system shown in FIG. 1 will be described with reference to FIGS. First, a process for calculating and setting an individual target value, which is performed prior to the job distribution process in the present embodiment, will be described with reference to FIGS.

First, the leveling control unit 55 of the leveling control server 5 is based on the power consumption prediction data and the battery capacity data stored in the management data storage unit 53, and the overall target value in a specific period (for example, one day). P ₀ is calculated and stored in a storage device such as a main memory (FIG. 11: step S1).

The calculation of the overall target value P ₀ will be described with reference to FIG. In the upper graph of FIG. 12, the vertical axis represents power consumption of the entire system, and the horizontal axis represents time. In the lower graph of FIG. 12, the vertical axis represents the total value of the remaining battery power of the entire system, and the horizontal axis represents time.

In the example of FIG. 12, the electric power of the overall target value P ₀ is supplied from the commercial power source to the system from time T ₁ to time T ₂ . Here, the predicted power consumption value is smaller than the overall target value P ₀ from time T ₁ to time T ₂ and from time T ₃ to time T _4. Charged. Accordingly, the remaining battery charge R ₀ increases from time T ₁ to time T ₂ and from time T ₃ to time T ₄ . On the other hand, since the predicted power consumption value is larger than the overall target value P ₀ from time T ₂ to time T ₃ , the power difference between the two is discharged from the battery to the system. Therefore, the remaining battery charge R ₀ decreases from time T ₂ to time T ₃ .

In the example of FIG. 12, the remaining battery level does not reach 0 between time T ₁ and time T _4, and the power consumption is due to the power of the overall target value P ₀ supplied from the commercial power supply and the discharge from the battery. Can be covered. Therefore, the peak value of the power supplied from the commercial power supply becomes equal to the overall target value P ₀ .

In the example of FIG. 12, the remaining battery level approaches 0 at time T ₃ , and if a smaller value than the example of FIG. 12 is set as the overall target value P ₀ , the remaining battery level is at time T _3. There is also the possibility of reaching 0 in the vicinity. In this case, the power consumption of the system must be covered only by the power supplied from the commercial power source, and the peak value of the power supplied from the commercial power source may be significantly larger than the example of FIG. On the other hand, when a larger value than the example of FIG. 12 is set as the overall target value P ₀ , the remaining battery level does not reach 0 as in the case of the example of FIG. It will not be a situation that must be covered only by the power supplied from. However, the surplus of the remaining amount of the battery is larger than the example of FIG. 12, and it cannot be said that the battery can be used more effectively than the example of FIG.

In the present embodiment, a plurality of candidate values for overall target value P ₀ are selected, and for each of the plurality of candidate values, the peak value of the power supplied from the commercial power source is calculated. Then, the candidate value with the smallest peak value is determined as the overall target value P ₀ . This means that an overall target value P ₀ that can make the most effective use of the battery is specified.

  Note that the processing in step S1 as described above can be performed using, for example, PSO (Particle Swarm Optimization) which is a metaheuristic method. Since these are not the main parts of this embodiment, they will not be described in detail here.

Returning to the description of FIG. 11, the leveling control unit 55 of the leveling control server 5 determines the individual target value P _i (i = 1, 2, 3... M based on the overall target value P ₀ calculated in step S1. ) Is calculated and stored in the individual target value table of the management data storage unit 53 (step S3).

The individual target value P _i may be set to P _m = P ₀ / m when, for example, the power consumption per unit time of each job processing server is equivalent. In the example of FIG. 1, P _0/2 is set. However, even if the power consumption per unit time of each job processing server is the same, when the battery capacity of the connected power supply apparatus is different, the setting may be made based on the ratio of the battery capacity. For example, it is assumed that the battery of the power supply apparatus that supplies power to the job processing servers 11A and 11B is fully charged, the battery capacity ratio is 1: 2, and P ₀ = 300 [w]. In this case, the individual target value of the job processing server 11A is set to 200 [w], and the individual target value of the job processing server 11B is set to 100 [w]. That is, more power is supplied from the commercial power source to the job processing server connected to the power supply apparatus with a small battery capacity.

Next, the communication unit 51 of the leveling control server 5 transmits a charge / discharge control request including the individual target value P _i stored in the individual target value table to the power feeding devices 13A and 13B (step S5). Then, the communication unit 1301 of the power feeding devices 13A and 13B receives the charge / discharge control request from the leveling control server 5 and stores it in the data storage unit 1305 (step S7).

Then, the charge / discharge control unit 1309 controls the charge / discharge of the battery based on the individual target value P _i stored in the data storage unit 1305 and the power consumption data of the job processing server (step S9). In step S9, if (individual target value P _i )> (power consumption of job processing server), the power corresponding to (individual target value P _i ) − (power consumption of job processing server) is set to battery 1311. To charge. On the other hand, when (individual target value P _i ) <(power consumption of job processing server), power corresponding to (power consumption of job processing server) − (individual target value P _i ) is discharged from battery 1311. . Note that the process of step S9 is repeated until, for example, the time at which the control should be ended is reached or until the administrator instructs the end.

  By performing the processing as described above, it is possible to appropriately charge and discharge the battery in the power supply apparatus and to suppress the power supplied from the commercial power source.

  Next, job distribution processing will be described with reference to FIGS. First, the client terminal 7 transmits a job execution request including a job identifier to the job distribution server 3 (FIG. 13: Step S11). On the other hand, the communication unit 31 of the job distribution server 3 receives a job execution request from the client terminal 7 and stores it in a storage device such as a main memory (step S13).

  Then, the communication unit 31 of the job distribution server 3 transmits the leveling control request including the job identifier received in step S13 to the leveling control server 5 (step S15). On the other hand, the communication unit 51 of the leveling control server 5 receives the leveling control request from the job distribution server 3 and stores it in the job identifier storage unit 59 (step S17). Then, the leveling control unit 55 performs a server specifying process (step S19). The server specifying process will be described with reference to FIG.

First, the power consumption specification unit 551 of the leveling control unit 55 identifies the power consumption Pj _i corresponding to the job identifier stored in the job identifier storage unit 59 from the job table management data storage unit 53, a main memory, (FIG. 14: step S41). The server specifying unit 553 searches the server table of the management data storage unit 53 for a job processing server that satisfies (job power consumption Pj _i specified in step S41) + power consumption Ps _i <individual target value P _i. (Step S43). That is, a job processing server is searched for whose power consumption does not exceed the individual target value even when the job requested from the client terminal 7 is executed.

  Then, the server specifying unit 553 determines whether the corresponding job processing server is specified in step S43 (step S45). When the corresponding job processing server is specified (step S45: Yes route), the server specifying unit 553 is specified in step S43 based on the processing load data stored in the server table of the management data storage unit 53. The job processing server having the lowest processing load among the job processing servers is specified as the execution server, and the identifier of the execution server is stored in the processing result storage unit 57 (step S53).

  On the other hand, when the corresponding job processing server is not specified in step S43 (step S45: No route), the server specifying unit 553 is based on the remaining battery data stored in the server table of the management data storage unit 53. The job processing server connected to the power supply apparatus with the largest remaining battery capacity is specified, and the identifier of the job processing server is stored in a storage device such as a main memory (step S47).

  Then, the server specifying unit 553 determines whether a plurality of job processing servers have been specified in step S47 (step S49). For example, in the configuration in which one job processing server is connected to one power supply device as shown in FIG. 1, when there are a plurality of power supply devices with the maximum remaining battery power, or there are a plurality of power supply devices with the maximum remaining battery power. This applies when a job processing server is connected. If a plurality of job processing servers are not specified (step S49: No route), the identifier of the job processing server specified in step S47 is stored in the processing result storage unit 57. That is, the job processing server specified in step S47 is determined as the execution server.

  On the other hand, when a plurality of job processing servers are identified (step S49: Yes route), the server identifying unit 553 identifies the specified job processing based on the processing load data stored in the server table of the management data storage unit 53. The job processing server having the lowest processing load among the servers is identified as the execution server, and the identifier of the execution server is stored in the processing result storage unit 57 (step S51). Then, the process returns to the original process.

  By performing the processing as described above, it is possible to cause the optimum job processing server to execute the job.

  Returning to the description of FIG. 13, the communication unit 51 of the leveling control server 5 generates a job distribution request including the identifier of the job processing server stored in the processing result storage unit 57 and transmits it to the job distribution server 3. (Step S21). On the other hand, the communication unit 31 of the job distribution server 3 receives the job distribution request from the leveling control server 5 and stores it in a storage device such as a main memory (step S23). Then, the processing shifts to the processing in FIG. 15 via terminals A and B.

  The processing after the terminals A and B will be described with reference to FIG. The job distribution unit 33 of the job distribution server 3 identifies the job processing server that distributes the job based on the identifier of the job processing server included in the received job distribution request, and distributes the job to the job processing server. To instruct. Then, the communication unit 31 transfers the job execution request received in step S13 to the job distribution server (here, the job processing server 11A) (step S25).

  On the other hand, the communication unit 111 of the job processing server 11A receives the job execution request from the job distribution server 3 and stores it in a storage device such as a main memory (step S27). In addition, the communication unit 111 instructs the job execution unit 113 to execute a job. Then, the job execution unit 113 executes the job related to the job execution request received in step S27 (step S29). In step S <b> 29, the job execution unit 113 notifies the communication unit 31 of the job execution result.

  Here, transition of power consumption and remaining battery capacity of the job processing server when the job distribution process as described above is performed will be described with reference to FIGS. 16 and 17. In the upper graph of FIG. 16, the vertical axis represents the power consumption of the job processing server 11A, and the horizontal axis represents time. In the lower graph of FIG. 16, the vertical axis represents the remaining amount of the battery of the power supply apparatus that supplies power to the job processing server 11A, and the horizontal axis represents time. 17 is the same as that of FIG. 16, FIG. 17 is a graph for the job processing server 11B.

Result of the job allocation process as described above, the power consumption of the job processing server 11A and 11B, increased from time T ₁ to T _2, the power consumption at the time T _2, is greater than the individual target value Yes. As described above, the power consumption of both job processing servers exceeds the individual target value at the same time. In step S43, a job processing server whose power consumption does not exceed the individual target value even when the requested job is executed is searched. This is because the process is distributed. Thereafter, during the period from time T _2, to T _3, since the power consumption of the job processing server 11A and 11B are respectively greater than the individual target value, the remaining amount of the battery is reduced. The consumption is power falls below the individual target value at time T _3, the charging of the battery will begin battery level starts to increase. Thus, in T ₃ the battery status is minimized, because the battery is not reached zero, the peak value of power both the job processing server receives power from the commercial power source becomes equal to the individual target value.

  Thus, in this embodiment, charging / discharging of the battery is controlled so that power exceeding the individual target value is not supplied from the commercial power source in each job processing server. As a result, the entire system will not receive power exceeding the overall target value from the commercial power supply. In other words, by distributing jobs in the present embodiment, the following two formulas are always satisfied.

・ D ₀ = D ₁ + D ₂
・ R ₀ = R ₁ + R ₂
Here, D ₀ is the total value of the discharge power from the battery included in the system, D ₁ is the discharge power from the battery of the power supply device 13A, D ₂ is the discharge power from the battery of the power supply device 13B, and R ₀ is the system power. The total remaining battery level, R ₁ is the remaining battery level of the power feeding device 13A, and R ₂ is the remaining battery level of the power feeding device 13B.

  Returning to FIG. 15, the communication unit 31 transmits the job execution result to the job distribution server 3 (step S31). On the other hand, the job distribution server 3 receives the job execution result from the job processing server 11A and transfers it to the client terminal 7 (step S33). The client terminal 7 receives the job execution result from the job distribution server 3 and stores it in a storage device such as a main memory (step S35). The client terminal 7 displays the job execution result on a display device, for example, and prompts the user who operates the client terminal 7 to confirm.

  By performing the processing as described above, since jobs are distributed so that the received power of each job processing server does not exceed the individual target value, the received power of the entire system can be suppressed. .

  As mentioned above, although embodiment of this technique was described, this technique is not limited to this. For example, the functional block diagrams of the job distribution server 3, the leveling control server 5, the job processing servers 11A and 11B, and the power supply devices 13A and 13B described above do not necessarily correspond to an actual program module configuration.

  Further, the configuration of each table described above is an example, and the configuration as described above is not necessarily required. Further, in the processing flow, the processing order can be changed if the processing result does not change. Further, it may be executed in parallel.

  In the present embodiment, an example is shown in which the job distribution server 3 and the leveling control server 5 are provided, but the functions of both servers may be realized by a single server.

  In addition, when an emergency battery (for example, UPS) is used as a power supply device, a threshold value of the battery capacity (for example, 50% of the total capacity) that can be assigned to the above-described processing is determined, and the above-mentioned range is described. Processing may be performed. In this way, it is possible to avoid a situation where a sufficient backup operation cannot be performed when an emergency such as a power failure occurs. In addition, this threshold value may be set variably, such as a low value when it is determined that there is a high probability that power supply from the commercial power supply will stop due to weather conditions or the presence or absence of electrical installation work.

  In the example described above, it is assumed that the requested job can be executed by any job processing server. However, there may be a job that can be executed only by a specific job processing server. . In this case, data on the relationship between the job and the job processing server that can execute the job is stored in advance. When there is a job execution request, first, a job processing server that can execute the job related to the job execution request is specified. When there is one specified job processing server, the job processing server Sort the process. On the other hand, when there are a plurality of specified job processing servers, the processing described above may be performed on the specified job processing servers.

  As shown in FIG. 18, the client terminal 7, the job distribution server 3, the leveling control server 5, and the job processing servers 11A and 11B have a memory 2501 (storage unit), a CPU 2503 (processing unit), a hard disk drive ( HDD) 2505, display control unit 2507 connected to display device 2509, drive device 2513 for removable disk 2511, input device 2515, and communication control unit 2517 for connecting to the network are connected by bus 2519. Application programs including the OS and the Web browser are stored in the HDD 2505, and are read from the HDD 2505 to the memory 2501 when executed by the CPU 2503. If necessary, the CPU 2503 controls the display control unit 2507, the communication control unit 2517, and the drive device 2513 to perform necessary operations. Further, data in the middle of processing is stored in the memory 2501 and stored in the HDD 2505 if necessary. Such a computer realizes various functions as described above by organically cooperating hardware such as the CPU 2503 and the memory 2501 described above with the OS and necessary application programs.

  The embodiments of the present technology described above are summarized as follows.

  In the power leveling method, when a process execution request including a process type identifier is received from a user terminal, the process type identifier and process power consumption data that is power consumed by executing the process type process For each of a plurality of servers capable of executing processing in response to a processing execution request from a user terminal, and a step of identifying processing power consumption corresponding to the received processing type identifier Using the server table storing the server power consumption data that is the power consumed by the server and the threshold value of the maximum power supplied from the commercial power supply to the server, the specified processing power consumption is added to the server power consumption. And a search step for searching for a server that satisfies the condition that the threshold is not exceeded, and a server that satisfies the condition in the search step is identified. If the determines the server as execution server, and a first determination step of transmitting a process execution request to the executing server.

  As described above, if the power supplied from the commercial power supply is suppressed to a threshold value or less for each of the plurality of servers, the power supplied from the commercial power supply to the entire system including the plurality of servers can be suppressed. .

  The server table described above may further store data on the remaining battery level of the power supply apparatus that supplies power to each of the plurality of servers. If a server that satisfies the conditions in the search step described above is not specified, the server table is used to identify the server with the largest remaining battery level as an execution server, and send a process execution request to the execution server. You may make it further include the 2nd determination step to transmit. As described above, by using the power supply device, the power supplied from the commercial power can be suppressed to a threshold value or less. In addition, since the server with the largest remaining battery capacity is identified as the execution server, the possibility that the battery will run out as a result of distributing the processing can be minimized. As a result, it is possible to avoid a situation where the power supplied from the commercial power source has to be increased because the battery has run out.

  The server table described above may further store processing load data for each of the plurality of servers. When a plurality of servers satisfying the conditions in the search step described above are identified, in the first determination step, the server having the lowest processing load among the identified servers is used as an execution server using the server table. It may be determined. As a result, the power supplied from the commercial power supply can be suppressed, and further the response performance of the server can be prevented from deteriorating.

  The server table described above may further store processing load data for each of the plurality of servers. If the server that satisfies the condition in the search step is not identified in the second determining step described above, the server table is used to identify the server having the largest remaining battery level. When there are a plurality of servers, the server table may be used to determine a server having the lowest processing load among the identified servers as an execution server. In this way, the battery can be effectively utilized to suppress the power supplied from the commercial power source to the server, and further the deterioration of the response performance of the server can be prevented.

  A step of calculating an overall threshold, which is a threshold of maximum power supplied from a commercial power supply to a system including a plurality of servers, based on a sum of battery capacities of power supply apparatuses included in the system and prediction of power consumed in the system; And calculating a threshold value for each of the plurality of servers stored in the server table so that a sum of the threshold values is equal to the overall threshold value. Thus, if an appropriate overall threshold is set according to the system characteristics, the power supplied from the commercial power source to the system can be effectively suppressed.

  In addition, when the power consumption of the server to which the power supply apparatus supplies power exceeds a threshold, the power supply apparatus described above discharges excess power from the battery included in the power supply apparatus, and the power supply apparatus When the power consumption of the server that supplies power is less than the threshold value, the battery included in the power supply apparatus may be charged with surplus power. By charging and discharging the battery in this way, the power supplied from the commercial power source does not exceed the threshold value, and the power supplied from the commercial power source can be used effectively.

  A program for causing a computer to perform the processing according to the above method can be created. The program can be a computer-readable storage medium such as a flexible disk, a CD-ROM, a magneto-optical disk, a semiconductor memory, a hard disk, or the like. It is stored in a storage device. The intermediate processing result is temporarily stored in a storage device such as a main memory.

  The following supplementary notes are further disclosed with respect to the embodiments including the above examples.

(Appendix 1)
When a process execution request including a process type identifier is received from a user terminal, the process type identifier is stored in association with process power consumption data, which is power consumed by executing the process type process. Identifying a processing power consumption corresponding to the received identifier of the processing type from the processing table;
Server power consumption data that is the power consumed by the server for each of a plurality of servers that can execute processing in response to a process execution request from the user terminal, and a threshold value of maximum power supplied from the commercial power source to the server A search step for searching for a server that satisfies the condition that the threshold value is not exceeded even if the specified processing power consumption is added to the server power consumption, using a server table storing
When a server satisfying the condition is identified in the search step, a first determination step of determining the server as an execution server and transmitting the process execution request to the execution server;
A power leveling method executed by a computer.

(Appendix 2)
The server table further stores, for each of the plurality of servers, data on a remaining battery level of a power supply device that supplies power to the server,
If no server satisfying the condition is identified in the search step, the server table is used to identify the server with the highest remaining battery level as the execution server, and send the process execution request to the execution server The power leveling method according to claim 1, further comprising: a second determining step.

(Appendix 3)
The server table further stores processing load data of the server for each of the plurality of servers,
When a plurality of servers satisfying the conditions are specified in the search step, the server having the lowest processing load among the specified servers is used as the execution server in the first determination step using the server table. The power leveling method according to supplementary note 1, wherein the power leveling method is determined.

(Appendix 4)
The server table further stores processing load data of the server for each of the plurality of servers,
The second determining step comprises:
If a server that satisfies the condition is not identified in the searching step, using the server table, identifying a server with the most remaining battery power; and
When there are a plurality of identified servers, the server table is used to determine a server with the lowest processing load among the identified servers as the execution server;
The power leveling method according to claim 2, including

(Appendix 5)
An overall threshold, which is a threshold of maximum power supplied from the commercial power supply to the system including the plurality of servers, is calculated based on a sum of battery capacities of power supply apparatuses included in the system and prediction of power consumed in the system. Steps,
Calculating the threshold for each of the plurality of servers stored in the server table such that the sum of the thresholds is equal to the overall threshold;
The power leveling method according to any one of supplementary notes 1 to 4, further comprising:

(Appendix 6)
The power supply device
When the power consumption of the server to which the power supply device supplies power exceeds the threshold, the excess power is discharged from the battery included in the power supply device,
Any one of appendices 2 to 5, wherein when a power consumption of a server that supplies power to the power supply apparatus is less than the threshold value, a surplus power is charged in a battery included in the power supply apparatus. The power leveling method described in one.

(Appendix 7)
A processing table that stores an identifier of a processing type and processing power consumption data that is power consumed by executing the processing of the processing type in association with each other;
For each of a plurality of servers that can execute processing in response to a processing execution request from a user terminal, server power consumption data that is power consumed by the server and a threshold value of maximum power supplied from the commercial power supply to the server A server table to store,
When a process execution request including a process type identifier is received from the user terminal, a power consumption specifying unit that specifies a process power consumption corresponding to the received process type identifier from the process table;
Using the server table, a server search unit that searches for a server that satisfies the condition that the threshold value is not exceeded even if the specified processing power consumption is added to the server power consumption; and
When a server that satisfies the condition is identified by the server search unit, the server is determined as an execution server, and a communication unit that transmits the process execution request to the execution server;
A power leveling system.

(Appendix 8)
When a process execution request including a process type identifier is received from a user terminal, the process type identifier is stored in association with process power consumption data, which is power consumed by executing the process type process. Identifying a processing power consumption corresponding to the received identifier of the processing type from the processing table;
Server power consumption data that is the power consumed by the server for each of a plurality of servers that can execute processing in response to a process execution request from the user terminal, and a threshold value of maximum power supplied from the commercial power source to the server A search step for searching for a server that satisfies the condition that the threshold value is not exceeded even if the specified processing power consumption is added to the server power consumption, using a server table storing
When a server satisfying the condition is identified in the search step, a first determination step of determining the server as an execution server and transmitting the process execution request to the execution server;
Is a power leveling program for causing a computer to execute.

DESCRIPTION OF SYMBOLS 1 Network 3 Job distribution server 5 Leveling control server 7 Client terminal 9 Commercial power supply 11A, 11B Job processing server 13A, 13B Power supply apparatus 31 Communication part 33 Job distribution part 51 Communication part 53 Management data storage part 55 Leveling control part 57 processing result storage unit 59 job identifier storage unit 551 power consumption identification unit 553 server identification unit 111 communication unit 113 job execution unit 115 server data storage unit 117 power consumption monitoring unit 119 processing load monitoring unit 1301 communication unit 1303 battery data storage unit 1305 Data storage unit 1307 Battery remaining amount monitoring unit 1309 Charge / discharge control unit 1311 Battery

Claims (10)

When a process execution request including a process type identifier is received from a user terminal, the process type identifier is stored in association with process power consumption data, which is power consumed by executing the process type process. Identifying a processing power consumption corresponding to the received identifier of the processing type from the first data storage unit ;
For each of a plurality of servers that can execute processing in response to a processing execution request from the user terminal, server power consumption data representing the power consumed by the server and time-varying power is supplied from the commercial power supply to the server. A search step for searching for a server that satisfies the condition that the threshold value is not exceeded even if the specified processing power consumption is added to the server power consumption using a second data storage unit that stores a threshold value of maximum power;
When a server satisfying the condition is identified in the search step, a first determination step of determining the server as an execution server and transmitting the process execution request to the execution server;
A power leveling method executed by a computer. The second data storage unit further stores, for each of the plurality of servers, data on a remaining battery level of a power supply device that supplies power to the server,
When a server that satisfies the condition is not specified in the search step, a server with the largest remaining battery capacity is specified as the execution server using the second data storage unit , and the process is sent to the execution server. The power leveling method according to claim 1, further comprising: a second determination step of transmitting an execution request. The second data storage unit further stores processing load data of the server for each of the plurality of servers.
When a plurality of servers satisfying the condition are specified in the search step, a server having the lowest processing load among the specified servers is selected using the second data storage unit in the first determination step. It determines as the said execution server. The power leveling method of Claim 1 characterized by the above-mentioned. The second data storage unit further stores processing load data of the server for each of the plurality of servers.
The second determining step comprises:
If a server that satisfies the condition is not identified in the searching step, using the second data storage unit , identifying a server with the most remaining battery power; and
When there are a plurality of identified servers, the second data storage unit is used to determine a server having the lowest processing load among the identified servers as the execution server;
The power leveling method according to claim 2, comprising: An overall threshold, which is a threshold of maximum power supplied from the commercial power supply to the system including the plurality of servers, is calculated based on a sum of battery capacities of power supply apparatuses included in the system and prediction of power consumed in the system. Steps,
Calculating the threshold value for each of the plurality of servers stored in the second data storage unit such that the sum of the threshold values is equal to the overall threshold value;
The power leveling method according to any one of claims 1 to 4, further comprising: The power supply device
When the power consumption of the server to which the power supply device supplies power exceeds the threshold, the excess power is discharged from the battery included in the power supply device,
If the power consumption of the server supplying the power the power supply device is less than the threshold value, according to claim 2, 4 or 5, wherein the charging power surplus to the battery included in the power supply device Power leveling method. A first data storage unit that associates and stores processing type identifiers and processing power consumption data that is power consumed by executing processing of the processing type;
Server power consumption data representing time-varying power consumed by each of a plurality of servers that can execute processing in response to a processing execution request from a user terminal, and the maximum supplied from the commercial power supply to the server A second data storage for storing a power threshold;
When a process execution request including a process type identifier is received from the user terminal, a power consumption specifying unit that specifies a process power consumption corresponding to the received process type identifier from the first data storage unit ;
A server search unit that searches for a server that satisfies the condition that the threshold value is not exceeded even if the specified processing power consumption is added to the server power consumption using the second data storage unit ;
When a server that satisfies the condition is identified by the server search unit, the server is determined as an execution server, and a communication unit that transmits the process execution request to the execution server;
A power leveling system. The second data storage unit further stores, for each of the plurality of servers, data on a remaining battery level of a power supply device that supplies power to the server,
When a server satisfying the condition is not specified by the search by the server search unit, the communication unit uses the second data storage unit to specify a server with the highest remaining battery level as the execution server. And send the process execution request to the execution server.
The power leveling system according to claim 7. When a process execution request including a process type identifier is received from a user terminal, the process type identifier is stored in association with process power consumption data, which is power consumed by executing the process type process. Identifying a processing power consumption corresponding to the received identifier of the processing type from the first data storage unit ;
For each of a plurality of servers that can execute processing in response to a processing execution request from the user terminal, server power consumption data representing the power consumed by the server and time-varying power is supplied from the commercial power supply to the server. A search step for searching for a server that satisfies the condition that the threshold value is not exceeded even if the specified processing power consumption is added to the server power consumption using a second data storage unit that stores a threshold value of maximum power;
When a server satisfying the condition is identified in the search step, a first determination step of determining the server as an execution server and transmitting the process execution request to the execution server;
Is a power leveling program for causing a computer to execute. The second data storage unit further stores, for each of the plurality of servers, data on a remaining battery level of a power supply device that supplies power to the server,
When a server that satisfies the condition is not specified in the search step, a server with the largest remaining battery capacity is specified as the execution server using the second data storage unit, and the process is sent to the execution server. Second decision step for sending an execution request
The power leveling program according to claim 9, further causing the computer to execute.

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