CN110378037A - CFD emulation date storage method, device and server based on Ceph - Google Patents
CFD emulation date storage method, device and server based on Ceph Download PDFInfo
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- CN110378037A CN110378037A CN201910666497.3A CN201910666497A CN110378037A CN 110378037 A CN110378037 A CN 110378037A CN 201910666497 A CN201910666497 A CN 201910666497A CN 110378037 A CN110378037 A CN 110378037A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/02—CAD in a network environment, e.g. collaborative CAD or distributed simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention discloses a kind of, and the CFD based on Ceph emulates date storage method, device, server and computer readable storage medium, this method comprises: server obtains and stores the description file of CFD example；Wherein, description file includes CFD example parameter；According to CFD example parameter, from default field variable interface and the corresponding emulation data of CFD example are stored；Wherein, presetting field variable interface is that libradosC++ expands interface；The present invention passes through according to CFD example parameter, from default field variable interface and store the corresponding emulation data of CFD example, using the logical relation between the emulation data and CFD example parameter of description profile formulation CFD example, realizes the accurate storage of emulation data and search；And by the setting for presetting field variable interface, the storage for providing the emulation data of field variable is supported, emulating the magnanimity of CFD, data are convenient to be stored reliably on Ceph cluster.
Description
Technical field
The present invention relates to technical field of distributed memory, in particular to a kind of CFD based on Ceph emulates data storage side
Method, device, server and computer readable storage medium.
Background technique
With the development of modern society's science and technology, distributed memory system is widely used.A kind of Ceph (distribution
Storage system) it is a unified distributed memory system, original design intention is to provide preferable performance, reliability and expansible
Property.Ceph project originates from the work (earliest achievement was delivered in 2004) during Sage attends school doctor, and subsequent tribute earliest
Dedicate open source community to.After it have passed through the development of several years, the support of numerous cloud computing manufacturers has been obtained at present and has been answered extensively
With.
Computational fluid dynamics (Computational Fluid Dynamics, CFD) is retouched using numerical method is discrete
The Naver-Stokes equation group (Navier-Stokes equation) for stating flowing, followed by modern computer calculating and
The resources such as storage obtain the solution of approximate description flow field problem.For actual engineering problem, CFD numerical value calculates (emulation) and can produce
Raw a large amount of calculation result data.In particular, turbulent flow is studied for direct solution Navier-Stokes equation, to meter
The storage for calculating result (emulation data) proposes higher challenge.
Therefore, how safe to that can be carried out to a large amount of calculation result datas of CFD example using distributed memory system
Reliable memory is urgent problem now.
Summary of the invention
The object of the present invention is to provide a kind of CFD emulation date storage method, device, server and calculating based on Ceph
Machine readable storage medium storing program for executing securely and reliably stores the emulation data that CFD Simulation Example is calculated using Ceph.
In order to solve the above technical problems, the present invention provides a kind of CFD emulation date storage method based on Ceph, comprising:
Server obtains and stores the description file of CFD example；Wherein, the description file includes CFD example parameter；
According to the CFD example parameter, from default field variable interface and the corresponding emulation number of the CFD example is stored
According to；Wherein, the default field variable interface is that librados C++ expands interface.
Optionally, the server obtains and stores the description file of CFD example, comprising:
Obtain the corresponding user information of the description file；
Judge whether there is the corresponding storage pool of the user information；
If so, by description file storage to the storage pool；
If it is not, then creating the storage pool, and the description file is stored to the storage pool；
It is corresponding, it is described according to the CFD example parameter, from default field variable interface and store the CFD example
Corresponding emulation data, comprising:
By emulation data storage to the storage pool.
It is optionally, described by emulation data storage to the storage pool, comprising:
In the placement group that the emulation data storage is stored to the description file.
It is optionally, described by description file storage to the storage pool, comprising:
Judge goal description file whether is stored in the storage pool；Wherein, the goal description file is the CFD
The corresponding description file of example parameter；
If so, in the placement group that the description file storage is stored to the goal description file.
Optionally, the CFD example parameter includes: initial time, time step, terminates time, computation model, turbulent flow mould
Type and example title.
Optionally, the default field variable interface includes: scalar interface, vector interface and second-order tensor interface.
Optionally, this method further include:
Read the description file of storage；
According to the CFD example parameter, the emulation data of storage are searched, and defeated by the default field variable interface
The emulation data out.
The present invention also provides a kind of, and the CFD based on Ceph emulates data storage device, comprising:
First memory module, for obtaining and storing the description file of CFD example；Wherein, the description file includes CFD
Example parameter；
Second memory module is used for according to the CFD example parameter, described in default field variable interface and storage
The corresponding emulation data of CFD example；Wherein, the default field variable interface is that librados C++ expands interface.
The present invention also provides a kind of servers, comprising:
Memory, for storing computer program；
Processor realizes that the CFD as described in any one of the above embodiments based on Ceph is imitative when for executing the computer program
The step of true data storage method.
The present invention also provides a kind of computer readable storage medium, meter is stored on the computer readable storage medium
Calculation machine program, the computer program realize the CFD emulation as described in any one of the above embodiments based on Ceph when being executed by processor
The step of date storage method.
A kind of CFD based on Ceph provided by the present invention emulates date storage method, comprising: server is obtained and stored
The description file of CFD example；Wherein, description file includes CFD example parameter；According to CFD example parameter, connect from default field variable
Mouth receives and stores the corresponding emulation data of CFD example；Wherein, presetting field variable interface is that librados C++ expands interface；
As it can be seen that the present invention is by from default field variable interface and storing CFD example correspondence according to CFD example parameter
Emulation data, utilize description profile formulation CFD example emulation data and CFD example parameter between logical relation, realization
It emulates the accurate storage of data and searches；And by the setting for presetting field variable interface, existing librados interface is carried out
Extension, the storage for providing the emulation data of field variable support that emulating the magnanimity of CFD, data are convenient to be stored reliably in
On Ceph cluster.In addition, the present invention also provides a kind of, the CFD based on Ceph emulates data storage device, server and calculating
Machine readable storage medium storing program for executing equally has above-mentioned beneficial effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart of the CFD emulation date storage method based on Ceph provided by the embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the emulation data Stored Procedure of CFD solver provided by the embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of the emulation reading and writing data of CFD solver provided by the embodiment of the present invention；
Fig. 4 is a kind of structural block diagram of the CFD emulation data storage device based on Ceph provided by the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is a kind of CFD emulation date storage method based on Ceph provided by the embodiment of the present invention
Flow chart.This method may include:
Step 101: server obtains and stores the description file of CFD example；Wherein, description file includes CFD example ginseng
Number.
It should be noted that the server in the present embodiment can be the server in Ceph cluster.It is serviced in this step
The description file of the received CFD example of device can be calculated for the emulation data (calculated result) for stating CFD example and CFD
The interface document of logical relation between example parameter, the i.e. interface document of CFD example parameter (metadata) read-write of CFD example.
That is, each CFD example can respectively correspond to a description file.
Specifically, the specific format and content of the description file for the CFD example in this step, it can be by designer
With the practical scene of user and user demand self-setting, the format for such as describing file can be used and existing OpenFOAM (one
The CFD class libraries of kind of object-oriented) example describe the same or similar mode of file and be arranged, as described the CFD example in file
Parameter may include the parameters such as primary condition, boundary condition, flow model and the time step of CFD example, as initial time, when
Between step-length, terminate time, computation model, turbulence model and example title etc..As long as server can use description, file is determined
Wherein the corresponding emulation data of CFD example parameter, the present embodiment do not do any restrictions to this.
It is corresponding, the concrete mode of the description file of CFD example is obtained for server in this step, it can be by designer
Member's self-setting such as can directly receive the description file of the CFD example of user's input；The CFD that can also be inputted according to user
Example parameter generates the description file of CFD example, and the present embodiment does not do any restrictions to this.
Step 102: according to CFD example parameter, from default field variable interface and storing the corresponding emulation number of CFD example
According to；Wherein, presetting field variable interface is that librados C++ expands interface.
It is understood that included data are deposited since Ceph provides the data storage method of object, block, file
Storage interface is not suitable for the emulation data (various field variables) of storage CFD example, according to the emulation of CFD example in the present embodiment
The characteristics of data, has been expanded on the basis of original librados interface (the ecosystem unified interface of Ceph cluster) for receiving
The data memory interface (C++ interface) of the emulation data of CFD example is stored, i.e. librados C++ expands interface (Ceph
The C++ interface in the library librdos).
That is, the default field variable interface in the present embodiment can be the use expanded in librados interface basis
The data memory interface of various field variables in the emulation data for receiving CFD example.For presetting the specific number of field variable interface
Amount and type, can be by designer according to practical scene and user demand self-setting, such as due to common in emulation data
Field variable mainly includes the field variables such as pressure (scalar), speed (vector) and stress (second-order tensor), can be according to field variable point
Amount, is divided into scalar field, vector field and second-order tensor field for field variable, i.e., the default field variable interface in the present embodiment may include
Scalar interface, vector interface and second-order tensor interface.As long as can use the emulation number of default field variable interface CFD example
According to the present embodiment does not do any restrictions to this.
Corresponding, the default field variable interface in the present embodiment can be data read and write interface, not only can be by default
Field variable interface emulates data, can also will emulate data output by default field variable interface.That is, this implementation
Method provided by example can also include the steps that server by utilizing presets field variable interface and exports the emulation data of storage, such as
Server can find the description file of the CFD example of storage according to the request of data that user exports, by reading the description
CFD example parameter in file finds corresponding emulation data and by default field variable interface output.That is the present embodiment institute
The method of offer can also include the description file that server reads the CFD example of storage；Corresponding CFD of file is described according to this
Example parameter searches the corresponding emulation data of storage, and the step of exporting the emulation data by default field variable interface.
Specifically, description file and corresponding emulation data to server in this present embodiment to received CFD example
Specific storage mode, can be by designer or user's self-setting, such as can be by the description file of CFD example and corresponding
Data storage is emulated into the storage pool of user；After the description file for receiving CFD example, it is corresponding that file can be described according to this
User information judgement there are the corresponding storage pools of user information；If it exists, then description file is stored and arrives the storage pool, and
Corresponding emulation data are also stored into the storage pool later；If it does not exist, then the corresponding storage pool of user information can be created,
Description file is stored into newly created storage pool, and where corresponding emulation data to be also stored into description file later
Storage pool.The description file of CFD example and corresponding emulation data can also be stored same into the storage pool of user
In one placement group (PG), so that the data fault domain of setting different stage may be implemented by more copy mechanism, further increase
The safety and stability of data；When will describe file storage storage pool corresponding to user information, will can entirely it describe
A placement group of the storage pool is arrived in file storage, and this is described the corresponding emulation data storage of file to the storage later
The emulation data can be stored to this and be described in the placement group that file is stored by Chi Shi.The present embodiment does not do any limit to this
System.
Further, server can also be by the description file of multiple relevant CFD examples of same user and corresponding
Emulation data are stored into same placement group；That is, current description file storage is deposited to user information is corresponding
When reservoir, it can be checked in the storage pool according to the CFD example parameter in current description file with the presence or absence of CFD example parameter
The description file (goal description file) and/or emulation data stored before corresponding, what is such as stored before deposits with current needs
The description file and/or emulation data of CFD example of the CFD example of storage under same operating；If it exists, then text will be described currently
Part is stored in the corresponding description file of its CFD example parameter and/or emulates in the placement group that data are stored；If it does not exist, then
It can choose the current description file of any one placement group (such as one empty placement group) storage in the storage pool.Text will be described
Part is stored to the corresponding storage pool of user information, may include: to judge whether be stored with mesh in the corresponding storage pool of user information
Mark description file；Wherein, goal description file is the corresponding description file of CFD example parameter；If so, will description file storage
In the placement group stored to goal description file.
It should be noted that the present embodiment is with server to the description file of a CFD example and connecing for emulation data
The displaying that carries out for harvesting storage, for server to the description file of multiple CFD examples and emulate data reception storage and
Output, can be using realizing with the same or similar mode of method provided by the present embodiment, and the present embodiment does not do this any
Limitation.
Specifically, CFD solver (such as computer) can be by the CFD example of user's input as shown in Figure 2 and shown in Fig. 3
CFD example parameter (example configuration parameter) be input to meta data file generate description file cocurrent be sent to Ceph, then start
It calculates, calls the librados C++ of Ceph to expand interface by output gap and arrive emulation data (calculation result data) storage
In the RADOS object storage system of Ceph in corresponding PG.
In the present embodiment, the embodiment of the present invention is by from default field variable interface and storing according to CFD example parameter
The corresponding emulation data of CFD example utilize patrolling between the emulation data and CFD example parameter of description profile formulation CFD example
The relationship of collecting realizes the accurate storage and lookup of emulation data；And by the setting for presetting field variable interface, to existing
Librados interface is extended, and the storage for providing the emulation data of field variable is supported, so that the magnanimity of CFD is emulated data can be so as to
Victory is stored reliably on Ceph cluster.
Referring to FIG. 4, Fig. 4 is a kind of CFD emulation data storage device based on Ceph provided by the embodiment of the present invention
Structural block diagram.The apparatus may include:
First memory module 10, for obtaining and storing the description file of CFD example；Wherein, description file includes that CFD is calculated
Example parameter；
Second memory module 20, for from default field variable interface and storing CFD example according to CFD example parameter
Corresponding emulation data；Wherein, presetting field variable interface is that librados C++ expands interface.
Optionally, the first memory module 10 may include:
Acquisition of information submodule, for obtaining the corresponding user information of description file；
Judging submodule, for judging whether there is the corresponding storage pool of user information；
First sub-module stored, for if it exists, then storing description file to the corresponding storage pool of user information；If no
In the presence of, then create the corresponding storage pool of user information, and will the storage of description file to the corresponding storage pool of user information.
Corresponding, the second memory module 20 may include:
Second sub-module stored, for data storage will to be emulated to the corresponding storage pool of user information.
Optionally, third sub-module stored may include:
First storage unit, for that will emulate in the placement group that data storage is stored to description file.
Optionally, the first sub-module stored may include:
Judging unit, for judging whether be stored with goal description file in storage pool；Wherein, goal description file is
The corresponding description file of CFD example parameter；
Second storage unit stores the placement group stored to goal description file for if it exists, then will describe file
In.
Optionally, which can also include:
Read module, for reading the description file of storage；
Output module, for searching the emulation data of storage according to CFD example parameter, and by presetting field variable interface
Output emulation data.
In the present embodiment, the embodiment of the present invention passes through the second memory module 20 according to CFD example parameter, from default field variable
Interface simultaneously stores the corresponding emulation data of CFD example, is calculated using the emulation data and CFD of description profile formulation CFD example
Logical relation between example parameter is realized the accurate storage of emulation data and is searched；And by presetting setting for field variable interface
It sets, existing librados interface is extended, the storage for providing the emulation data of field variable is supported, the magnanimity of CFD is emulated
Data convenient can be stored reliably on Ceph cluster.
The embodiment of the invention also provides a kind of servers, comprising: memory, for storing computer program；Processor,
The step of the CFD emulation date storage method as provided by above-described embodiment based on Ceph is realized when for executing computer program
Suddenly.
In addition, the embodiment of the invention also provides a kind of computer readable storage medium, on computer readable storage medium
It is stored with computer program, is realized as provided by above-described embodiment when computer program is executed by processor based on Ceph
CFD emulates the step of date storage method.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment, clothes
It is engaged in for device and computer readable storage medium, since it is corresponded to the methods disclosed in the examples, so the comparison of description is simple
Single, reference may be made to the description of the method.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Above to a kind of CFD emulation date storage method by Ceph provided by the present invention, device, server and based on
Calculation machine readable storage medium storing program for executing is described in detail.Specific case used herein to the principle of the present invention and embodiment into
Elaboration is gone, the above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims (10)
1. a kind of CFD based on Ceph emulates date storage method characterized by comprising
Server obtains and stores the description file of CFD example；Wherein, the description file includes CFD example parameter；
According to the CFD example parameter, from default field variable interface and the corresponding emulation data of the CFD example are stored；
Wherein, the default field variable interface is that librados C++ expands interface.
2. the CFD according to claim 1 based on Ceph emulates date storage method, which is characterized in that the server
Obtain and store the description file of CFD example, comprising:
Obtain the corresponding user information of the description file；
Judge whether there is the corresponding storage pool of the user information；
If so, by description file storage to the storage pool；
If it is not, then creating the storage pool, and the description file is stored to the storage pool；
It is corresponding, it is described according to the CFD example parameter, from default field variable interface and store the CFD example correspondence
Emulation data, comprising:
By emulation data storage to the storage pool.
3. CFD according to claim 2 based on Ceph emulates date storage method, which is characterized in that it is described will be described
Data storage is emulated to the storage pool, comprising:
In the placement group that the emulation data storage is stored to the description file.
4. CFD according to claim 3 based on Ceph emulates date storage method, which is characterized in that it is described will be described
File storage is described to the storage pool, comprising:
Judge goal description file whether is stored in the storage pool；Wherein, the goal description file is the CFD example
The corresponding description file of parameter；
If so, in the placement group that the description file storage is stored to the goal description file.
5. the CFD according to claim 1 based on Ceph emulates date storage method, which is characterized in that the CFD example
Parameter includes: initial time, time step, terminates time, computation model, turbulence model and example title.
6. the CFD according to claim 1 based on Ceph emulates date storage method, which is characterized in that the default field
Variable interface includes: scalar interface, vector interface and second-order tensor interface.
7. the CFD according to any one of claims 1 to 6 based on Ceph emulates date storage method, which is characterized in that also
Include:
Read the description file of storage；
According to the CFD example parameter, the emulation data of storage are searched, and institute is exported by the default field variable interface
State emulation data.
8. a kind of CFD based on Ceph emulates data storage device characterized by comprising
First memory module, for obtaining and storing the description file of CFD example；Wherein, the description file includes CFD example
Parameter；
Second memory module, for from default field variable interface and storing the CFD calculation according to the CFD example parameter
The corresponding emulation data of example；Wherein, the default field variable interface is that librados C++ expands interface.
9. a kind of server characterized by comprising
Memory, for storing computer program；
Processor is realized as described in any one of claim 1 to 7 based on Ceph's when for executing the computer program
CFD emulates the step of date storage method.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program, the computer program realize the CFD as described in any one of claim 1 to 7 based on Ceph when being executed by processor
The step of emulating date storage method.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112235356A (en) * | 2020-09-23 | 2021-01-15 | 青岛数智船海科技有限公司 | Distributed PB-level CFD simulation data management system based on cluster |
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| CN107273056A (en) * | 2017-06-30 | 2017-10-20 | 郑州云海信息技术有限公司 | A kind of date storage method and device of Ceph file system |
| CN112306586A (en) * | 2020-11-20 | 2021-02-02 | 深圳前海微众银行股份有限公司 | Data processing method, device, equipment and computer storage medium |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107273056A (en) * | 2017-06-30 | 2017-10-20 | 郑州云海信息技术有限公司 | A kind of date storage method and device of Ceph file system |
| CN112306586A (en) * | 2020-11-20 | 2021-02-02 | 深圳前海微众银行股份有限公司 | Data processing method, device, equipment and computer storage medium |
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| CN112235356A (en) * | 2020-09-23 | 2021-01-15 | 青岛数智船海科技有限公司 | Distributed PB-level CFD simulation data management system based on cluster |
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