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54 results about "Asynchronous computation" patented technology

Brief Introduction to Asynchronous Computation Expressions. Asynchronous operations, which use the Async<'a> type, are basically a way of writing Continuation Passing Style (CPS) programs.

Synchronization method based on distributed-type integrated recorder parallel buses

The invention belongs to the category of high-speed large-capacity data measurement and recording. By adopting methods of synchronous parallel sampling, sectionally synchronous transmission, data queue synchronization, sectionally synchronous computing, parallel synchronous recording, on-line synchronous timing and accurate marking of absolute time of sampling data, and the like, the sectional computing synchronization and the accurate synchronization recording of a plurality of sub-recorders under an asynchronous computation process in a distributed-type integrated recorder are realized. A system clock provides the guarantee for synchronous parallel sampling and sectionally synchronous transmission. Parallel buses and control circuits which are integrated on the sub-recorders and a motherboard are taken as a synchronous hardware basis. The data queue synchronization and the computing and recording synchronization can be realized by matching a queue synchronization control line and a status line, a calculation synchronization control line and a status line as well as a recording, recorded value and definite value control line and a status line with a motherboard synchronization control circuit. The method conveniently and reliably ensures the strict synchronization of data recording of the distributed-type integrated recorder and the high-resolution time precise positioning of data mutation or scheduled events.
Owner:SICHUAN UNIV

Structural-dynamic-analysis explicit-different-step-length parallel computing method

The invention provides a structural-dynamic-analysis explicit-different-step-length parallel computing method. The method includes the four steps that (1) data files required by parallel computing aregenerated with the partition multiple-node strategy; (2) time step lengths of all partitions are selected according to partition unit characteristics to be subjected to explicit prediction step computing; (3) in small-step-length partitions, partition-inside and boundary-node data is solved through step-by-step decreasing of the explicit sub-cycle process, and in large-step-length partitions, inside and boundary-node data is solved through the main time step length; (4) the boundary-node data required by paralleling is received by all the partitions, partition information is updated, strainsand stress are computed as required, and partition node data is output; if a main time step is ended, the program is stopped, and if a main time step is not ended, the step (2) is newly carried out. According to the structural-dynamic-analysis explicit-different-step-length parallel computing method, in the large-scale dynamic parallel analysis process, different time step lengths can be selectedaccording to the partition unit characteristics, partition different-step computing coupling is achieved with the multiple-node strategy, and parallel efficiency is effectively improved.
Owner:SHANGHAI JIAO TONG UNIV

Method for cooperatively computing and accelerating pre-stack time migration of earthquake by using CPU (Central Processing Unit)/MIC (Microphone)

The invention provides a method for cooperatively computing and accelerating pre-stack time migration of an earthquake by using a CPU (Central Processing Unit)/MIC (Microphone), and relates to the field of high-property computing. According to the method, a CPU and MIC heterogeneous framework is used; a CPU is in charge of performing FFT (Fast Fourier Transform) computing, reading seismic channel data, performing process control and scheduling, and further participating in PSTM (Photon Scanning Tunneling Microscope) computing; the MIC is used for only performing the PSTM computing, and simultaneously performing CPU and MIC cooperative computation and common computation in an asynchronous parallel idea and dynamic load balance manner; and the integrated design comprises the following three aspects: parallel design of a PSTM computation partial serial algorithm, a PSTM integrated logic structural design and a CPU and MIC asynchronous computation design. The method provided by the invention has the beneficial effects that the PSTM properties can be improved by using the CPU/MIC cooperative computation; the building cost and management, operation and maintenance costs of a machine room can be reduced; and the simple realization and the low desired development cost can be realized.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Forced oscillation disturbance source positioning method based on frequency band-dividing parallel computation

ActiveCN106571636AAvoid the problem of time-consuming analysis and calculationReduce the number of analysis data pointsFault location by conductor typesPower oscillations reduction/preventionTransformerSource element
The invention belongs to the technical field of power systems and automation thereof, and discloses a forced oscillation disturbance source positioning method based on frequency band-dividing parallel computation. A preset frequency range is divided into a plurality of frequency bands for parallel computation; as for each frequency band, through setting each data window length and each sampling frequency, analyzed data points are reduced; each frequency band adopts an asynchronous computation mode, other frequency bands do not need to be waited after one-round analysis computation, a result is refreshed and new data are obtained for next-round analysis, dissipation power of a unit, a transformer and a line is calculated, a suspected oscillation source related element is screened according to a threshold value, oscillation elements are grouped according to a dominant mode phase angle, and elements with advanced phases in the group of the suspected oscillation source elements are selected as the oscillation source unit, the related line and the transformer. The scheme is reasonably designed, and forced power oscillation warning and disturbance source positioning information timeliness can be ensured.
Owner:NARI TECH CO LTD +2

Message reminding method and system in support of asynchronous and synchronous computation

The invention discloses a message reminding method and system in support of asynchronous and synchronous computation. The method comprises the following steps: in a business management system, asynchronous message reminding and synchronous message reminding are integrated, wherein the asynchronous message reminding adopts at least two asynchronous computation modes to obtain message data needed bythe message reminding, different reminding rules are configured according to characteristics of the message reminding, the synchronous message reminding adopts at least one synchronous computation mode to obtain message data needed by the message reminding, and finally, the message data needed by the message reminding through asynchronous computation and synchronous computation are aggregated asa collection of message data, and message reminding is carried out in a unified mode. The method and the system enhance the message reminding function performance and the extensibility through adopting technologies such as reading and writing separation, a timing task and an asynchronous computation task, and after a business operator logs in to the system (the business management system), unifiedmessage reminding can be acquired timely.
Owner:北京大数元科技发展有限公司

Data verification acceleration method and device, computer equipment and storage medium

The invention discloses a data verification acceleration method and device, computer equipment and a storage medium. The method comprises the steps of obtaining to-be-verified data; performing segmentation processing on the to-be-verified data based on the standard data size of the preset data block, and determining a plurality of verification blocks, the verification data size of the verification blocks being equal to the standard data size of the preset data block; obtaining a request message sent by an upper computer, and judging whether the request message is a verification request or not; if the request message is a verification request, executing an asynchronous verification processing program to verify the multiple verification blocks, wherein the asynchronous verification processing program comprises an interrupt processing program and an asynchronous calculation program, the interrupt processing program is used for sending a verification waiting response to the upper computer, and the asynchronous calculation program is used for calculating the verification blocks; and sending a verification response to the upper computer after the calculation is finished. According to the invention, the processing speed of data verification is improved by expanding the data size of the verification block for each verification processing and adopting an asynchronous calculation method to perform data verification.
Owner:WEICHAI POWER CO LTD

Contract scheduling method and device for asynchronous trusted computing and electronic equipment

The embodiment of the invention provides a contract scheduling method for asynchronous trusted computing, which comprises the following steps that a main chain cluster client initiates a first transaction request, pushes a submission contract engine and random processing to a first queue under a main chain cluster, stores a random processing result into a cache queue of each oracle machine, creates a computing engine by the oracle machine, a processing instruction for calculating the first transaction request is sent to the first node, a voting collection request is sent to the second node, the first node executes to obtain an in-chain execution result, if an out-of-chain request exists in the request, out-of-chain data is accessed for asynchronous calculation, and an out-chain calculation result is received, and the second node collects a voting result according to the out-of-chain calculation result received by the first node, generates proof information through the voting result in a zero-knowledge proof mode, and returns the proof information to the contract engine of the main chain for subsequent transaction processing. Through out-of-chain calculation, an out-of-chain result is obtained and is chained in a zero-knowledge proof mode, so that a contract engine can carry out credible complex calculation, and the calculation capability is improved.
Owner:北京泛融科技有限公司

A Method of Accelerating Seismic Prestack Time Migration Using CPU/MIC Collaborative Computing

The invention provides a method for cooperatively computing and accelerating pre-stack time migration of an earthquake by using a CPU (Central Processing Unit) / MIC (Microphone), and relates to the field of high-property computing. According to the method, a CPU and MIC heterogeneous framework is used; a CPU is in charge of performing FFT (Fast Fourier Transform) computing, reading seismic channel data, performing process control and scheduling, and further participating in PSTM (Photon Scanning Tunneling Microscope) computing; the MIC is used for only performing the PSTM computing, and simultaneously performing CPU and MIC cooperative computation and common computation in an asynchronous parallel idea and dynamic load balance manner; and the integrated design comprises the following three aspects: parallel design of a PSTM computation partial serial algorithm, a PSTM integrated logic structural design and a CPU and MIC asynchronous computation design. The method provided by the invention has the beneficial effects that the PSTM properties can be improved by using the CPU / MIC cooperative computation; the building cost and management, operation and maintenance costs of a machine room can be reduced; and the simple realization and the low desired development cost can be realized.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Method for dynamically calculating MD5 value in storage device

The invention discloses a method for dynamically calculating an MD5 value in a storage device, which is applied to the storage device in which an object storage S3 protocol and a file storage NAS protocol are intercommunicated to realize dynamic calculation of the MD5 value. When an object is uploaded through an NAS protocol, an MD5 value is calculated online in real time; when the object is modified in a modified writing or additional writing mode, the MD5 value is modified to be in a temporary state, meanwhile, a calculation task is created to asynchronously calculate the MD5 value, and the priority of the calculation task is set; and the background thread periodically enumerates the calculation task for calculation. Counts are set in a frequent object modification scene, and when the object is modified, the counts are increased if a previously created calculation task is not executed, so that repeated calculation is avoided; in order to reduce CPU consumption caused by frequent modification, a validity period is set, if an object is modified in the validity period, only the MD5 value is modified to be in a temporary state without calculation, and if a user needs to check the MD5 value in the validity period, an asynchronous calculation task is created, and the priority of the calculation task is improved.
Owner:CHINA ZHESHANG BANK +1
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