CN108595370A - A kind of multi-core processor and message processing method - Google Patents
A kind of multi-core processor and message processing method Download PDFInfo
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- CN108595370A CN108595370A CN201810275755.0A CN201810275755A CN108595370A CN 108595370 A CN108595370 A CN 108595370A CN 201810275755 A CN201810275755 A CN 201810275755A CN 108595370 A CN108595370 A CN 108595370A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
- G06F15/163—Interprocessor communication
- G06F15/173—Interprocessor communication using an interconnection network, e.g. matrix, shuffle, pyramid, star, snowflake
- G06F15/1735—Network adapters, e.g. SCI, Myrinet
Abstract
A kind of multi-core processor of present invention offer and message processing method, the multi-core processor include：The Group marks of first Group are filled up in the corresponding Work of message for when it is non-order-preserving message to determine the message received, distributing non-order-preserving message corresponding first Group for message, Work are sent to SSO modules by PKI modules；SSO modules, when for being identified as the Group marks of the first Group in the Group for determining that Work includes, it is that the Work corresponds to the first Core of message distribution from the multiple Core, trigger the Work that the first Core is identified from the Group that the acquisition of SSO modules includes the first Group, if the first Core gets the Work of the marks of the Group including the first Group, corresponding message is read from memory and is handled.The present invention can promote the treatment effeciency of non-order-preserving message.
Description
Technical field
The present invention relates to network communication technology field more particularly to a kind of multi-core processors and message processing method.
Background technology
Multi-core processor refers to the processing that multiple Core (being known as process cores or kernel) is integrated on a hardware chip
Device.Since multiple process cores in multi-core processor are relatively independent, can parallel processing message therefore can be promoted based at multinuclear
Manage the message processing capability of the network equipment of device.
The mode of existing multi-core processor processing message is that the five-tuple information based on message is that message distributes Group
(group), then the correspondence based on preconfigured Group and Core handle message by the corresponding Core of the Group distributed.It should
Processing mode makes the message (message of same data flow) with identical five-tuple information by same Core processing, avoids out of order.
But there are the service traffics that part does not need order-preserving in network, if being still not required to using the processing of above-mentioned processing mode
The service traffics of order-preserving are wanted, then the treatment effeciency of non-order-preserving message is not high.
Invention content
The purpose of the present invention is to provide a kind of multi-core processor and message processing methods, to promote non-order-preserving message
Treatment effeciency.
For achieving the above object, the present invention provides following technical solutions：
In a first aspect, the present invention provides a kind of multi-core processor, the multi-core processor includes：PKI(Packet Input
Unit, message receive) it is module, SSO (Schedule/Synchronize/Order Unit, dispatching message) module, multiple
Core；
The PKI modules, for when it is non-order-preserving message to determine the message received, non-order-preserving report to be distributed for the message
The Group marks of first Group are filled up to the corresponding Work of the message (work item) by corresponding first Group of text
In, the Work is sent to the SSO modules；
The SSO modules, for determining that Group that Work includes is identified as the Group marks of the first Group
When, it is that the Work corresponds to message the first Core of distribution, and triggers the first Core from the SSO from the multiple Core
Module obtains the Work for the Group marks for including the first Group, if the first Core is got including described first
The Work of the Group marks of Group then reads corresponding message from memory and is handled.
Second aspect, the present invention provides a kind of message processing method, applied to the PKI modules that multi-core processor includes, institute
Stating multi-core processor further includes：SSO modules, multiple Core, the method includes：
When it is non-order-preserving message to determine the message received, non-order-preserving message corresponding first is distributed for the message
Group；
The Group marks of first Group are filled up in the corresponding Work of the message, the Work is sent to
The SSO modules, so that the SSO modules are determining that Group that Work includes is identified as the Group of the first Group
It is that the Work corresponds to message the first Core of distribution, and triggers the first Core from institute from the multiple Core when mark
The Work that the acquisition of SSO modules includes the Group marks of the first Group is stated, if the first Core is got including described
The Work of the Group marks of first Group then reads corresponding message from memory and is handled.
The third aspect, the present invention also provides a kind of message processing method, applied to the SSO modules that multi-core processor includes,
The multi-core processor further includes：PKI modules, multiple Core, the method includes：
When the Group for determining that Work includes is identified as the Group marks of corresponding first Group of non-order-preserving message,
It is that the Work corresponds to the first Core of message distribution from the multiple Core；
The Work that the first Core is identified from the Group that SSO modules acquisition includes the first Group is triggered,
If the first Core gets the Work of the marks of the Group including the first Group, corresponding message is read from memory
It is handled；
Wherein, the Work that the first Core is obtained is that the PKI modules are determining that the message received is non-order-preserving message
And it is that the Group marks of the first Group of distribution are filled up to the message after the message distributes the first Group
It is in the block that Work in corresponding Work, and after will fill in is sent to the SSO moulds.
The present invention is that non-order-preserving message distributes preset non-order-preserving message pair by PKI modules it can be seen from above description
The Group answered, and the Group marks of the corresponding Group of the non-order-preserving message are added in the corresponding Work of non-order-preserving message,
It is sent to SSO modules；Group of the SSO modules in determining Work is identified as the Group marks of the corresponding Group of non-order-preserving message
It is that non-order-preserving message dynamically distributes the Core for handling the non-order-preserving message from multiple Core, that is to say, that SSO modules when knowledge
In be not present the corresponding Group and Core of non-order-preserving message fixed correspondence, therefore, non-order-preserving message is not assigned to
It handles on fixed Core, would not also be limited by fixed Core processing capacities, to promote the processing effect of non-order-preserving message
Rate.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of multi-core processor shown in the embodiment of the present invention；
Fig. 2 is a kind of flow chart of message processing method shown in the embodiment of the present invention；
Fig. 3 is the flow chart of another message processing method shown in the embodiment of the present invention.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects being described in detail in claims, of the invention.
It is the purpose only merely for description specific embodiment in terminology used in the present invention, is not intended to limit the invention.
It is also intended to including majority in the present invention and "an" of singulative used in the attached claims, " described " and "the"
Form, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to and wraps
Containing one or more associated list items purposes, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the present invention
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not departing from
In the case of the scope of the invention, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
The embodiment of the present invention provides a kind of multi-core processor, is at a kind of multinuclear shown in the embodiment of the present invention referring to Fig. 1
The structural schematic diagram of device is managed, which includes PKI modules, SSO modules and multiple Core, wherein multiple Core
Including Core1~Core5.The present invention does not limit the quantity of Core, and the quantity of Core shown in Fig. 1 is merely illustrative
It is bright.
The modules that multi-core processor includes will be described below：
PKI modules：For when it is non-order-preserving message to determine the message received, it is corresponding to distribute non-order-preserving message for message
The Group marks of first Group are filled up in the corresponding Work of message, Work are sent to SSO modules by the first Group.
Specifically, PKI modules receive the configuration order for the message characteristic for carrying non-order-preserving message.In a kind of optional implementation
In mode, the message characteristic of non-order-preserving message can be obtained by order line or preset configuration interface (software interface).Meanwhile it configuring
The corresponding Group of non-order-preserving message, is denoted as the first Group.
When PKI modules receive message, judge whether the message characteristic of message hits configured non-order-preserving message
Message characteristic, if the message characteristic of the message hits the message characteristic of non-order-preserving message, it is determined that the message of reception is non-order-preserving
Message.
PKI modules are to be determined as corresponding first Group of the non-order-preserving message of message distribution of non-order-preserving message, by first
Storage address of the Group marks and message of Group in the memory except multi-core processor is filled up to message correspondence
Work in, Work is sent to SSO modules.
SSO modules：For when determining that Group that Work includes is identified as the Group marks of the first Group, from more
Message is corresponded to for Work in a Core and distribute the first Core, and it includes the first Group to trigger the first Core and obtained from SSO modules
The Work of Group marks.
Specifically, when SSO modules determine that the Group that current Work includes is identified as the Group marks of the first Group
When, it is non-order-preserving message to illustrate that the Work corresponds to message, since non-order-preserving message does not have order-preserving requirement, SSO modules need not
Message to be determined as non-order-preserving message distributes fixed Core processing.
In a kind of optional embodiment, SSO modules can distribute to all Core currently as the first Core
Work corresponds to message, i.e., any Core has the possibility for handling non-order-preserving message.
It is corresponding with Core based on Group present in SSO module statistical modules in another optional embodiment
Quantity of the relation allocation to the Work of the same Core.What needs to be explained here is that for there is a message of order-preserving requirement, still according to
The correspondence of preconfigured Group and Core is allocated, so, SSO modules can be according to existing Work in this step
Including Group mark and Group and Core correspondence, statistics distribute to the same Core Work quantity；Together
When, the present invention presets the quantity threshold for the Work that each Core is stored in SSO modules according to the processing capacity of each Core
Value, if the quantity of the Work of the current Core of statistics is more than preset quantity threshold value, illustrate to need the message of current Core processing compared with
More, current Core is busier；Conversely, if the quantity of the Work of current Core is less than preset quantity threshold value, illustrate current Core
Relative free has more sufficient processing capacity.In present embodiment, SSO modules are non-guarantor according to processing capacity current Core
The relatively idle Core of sequence message distribution is as the first Core.
After being determined that processing current Work corresponds to the first Core of message, SSO modules notify interrupt control unit to trigger the
One Core obtains the Work that the Group comprising the first Group is identified from SSO modules.It is currently at the first Core of idle state
Meeting quick response is interrupted, and the instruction for obtaining Work is sent to SSO modules, and SSO modules will be identified including the Group of the first Group
Work be sent to the first Core, then the first Core reads corresponding message based on the storage address in Work from memory
It is handled.And the first Core that other subsequent responses are interrupted, after the instruction for obtaining Work is sent to SSO modules, if SSO modules
It is middle to there is the Work for corresponding to the Group of Group comprising the first Core and identifying (i.e. in the presence of according to the passes corresponding with Core Group
It is the Work of distribution), then the Work is sent to the first Core, the first Core is based on the corresponding message of Work processing；If first
Core does not get Work from SSO modules, then automatically exits from interruption.
The message for no order-preserving requirement, the non-guarantor of Non-precondition of the present invention are can be seen that from above two embodiment
Sequence message corresponds to the correspondence of Group and Core, but is dynamically determined the Core for handling non-order-preserving message, to make full use of
Core resources make non-order-preserving message obtain timely processing, promote the treatment effeciency of non-order-preserving message.
For there is the message of order-preserving requirement, as previously mentioned, can will be belonged to based on the correspondence of preset Group and Core
It is sent into same Core processing in the message (corresponding identical Group) of same flow, to reach order-preserving purpose.At existing multi-core processor
When managing order-preserving message, the five-tuple information for being typically based on message is that message distributes Group, still, partial service requirement in network
Order-preserving is carried out according to triplet information, if at this point, being still that message distributes Group according to five-tuple information, with identical ternary
The message of group information can be assigned to different Group, and then by different Core processing, be unable to reach the purpose of order-preserving.
For this purpose, present invention preset matching pattern in PKI modules, the match pattern include：Based on five-tuple information
Match pattern with pattern, based on triplet information.When need change Matching Model (for example, from based on five-tuple information
It is changed to the match pattern based on triplet information with pattern) when, PKI modules can be changed by order line or preset configuration interface
In preset matching pattern.
It is message according to preset match pattern in current PKI modules when the message that PKI modules receive is order-preserving message
Group (being denoted as the 2nd Group) is distributed, the Group marks of the 2nd Group are filled up in the corresponding Work of message, by Work
SSO modules are sent to, so that it includes second that Core corresponding with the 2nd Group (being denoted as the 2nd Core) is obtained from SSO modules
The Work of the Group marks of Group, and message is read from memory based on the Work of acquisition and is handled.To realize multinuclear
Flexible control of the processor based on the order-preserving of five-tuple information and based on triplet information order-preserving.
The embodiment of the present invention also provides a kind of message processing method, is a kind of report shown in the embodiment of the present invention referring to Fig. 2
The flow chart of literary processing method, the embodiment are described Message processing process from PKI module sides.
Step 201, when it is non-order-preserving message to determine the message received, non-order-preserving message corresponding first is distributed for message
Group。
Step 202, the Group of the first Group marks are filled up in the corresponding Work of message, Work is sent to SSO
Module, so that SSO modules are when determining that Group that Work includes is identified as the Group marks of the first Group, from multiple
Message is corresponded to for Work in Core and distribute the first Core, and it includes the first Group to trigger the first Core and obtained from SSO modules
The Work of Group marks, if the first Core gets the Work of the marks of the Group including the first Group, from interior
The corresponding message of middle reading is deposited to be handled.
Optionally, it is that message distributes before corresponding first Group of non-order-preserving message, further includes：
Receive the configuration order for the message characteristic for carrying non-order-preserving message；
If the message characteristic of message hits the message characteristic of non-order-preserving message, determine that message is non-order-preserving message.
Optionally, it is preset with match pattern in the PKI modules, the match pattern includes：Based on five-tuple information
Match pattern, the match pattern based on triplet information；
It is that the message distributes second according to preset match pattern when the message of the reception is order-preserving message
The Group marks of 2nd Group are filled up in the corresponding Work of the message, the Work are sent to institute by Group
SSO modules are stated, so that it includes the 2nd Group that twoth Core corresponding with the 2nd Group is obtained from the SSO modules
Group marks Work, and message is read from the memory based on the Work of acquisition and is handled.
The embodiment of the present invention also provides a kind of message processing method, is the another kind shown in the embodiment of the present invention referring to Fig. 3
The flow chart of message processing method, the embodiment are described Message processing process from SSO module sides.
Step 301, determining that Group that Work includes is identified as the Group of corresponding first Group of non-order-preserving message
When mark, the first Core of message distribution is corresponded to for Work from multiple Core；
Step 302, the first Core of triggering obtains the Work for the Group marks for including the first Group from SSO modules, if institute
The Work that the first Core gets the Group marks including the first Group is stated, then reads corresponding message from memory and carries out
Processing；
Wherein, the Work that the first Core is obtained is that PKI modules are non-order-preserving message and are the report in the determining message received
After the first Group of text distribution, the Group marks of the first Group of distribution are filled up in the corresponding Work of message, and will fill in
It is in the block that Work afterwards is sent to SSO moulds.
Optionally, message is corresponded to for Work distribute the first Core from multiple Core, including：
It regard multiple Core as the first Core, distributes to Work and correspond to message.
Optionally, message is corresponded to for Work distribute the first Core from multiple Core, including：
Correspondence based on Group and Core present in statistics SSO modules distributes to the Work's of the same Core
Quantity；
The Core that the quantity of the Work of statistics is less than preset quantity threshold value distributes to Work and corresponds to report as the first Core
Text.
The realization process of above-mentioned message processing method specifically refers to the above-mentioned description to each module in multi-core processor, herein
It repeats no more.
Now still by taking multi-core processor shown in Fig. 1 as an example, the multi-core processor and Message processing process are introduced.
PKI modules have obtained the message characteristic of non-order-preserving message by order line, and PKI modules and SSO modules are in advance
If the Group of the Group of non-order-preserving message is identified as Group0.
When PKI modules receive message (being denoted as Packet1), the message characteristic of Packet1 is extracted, if Packet1
Message characteristic is matched with the message characteristic of non-order-preserving message, it is determined that Packet1 is non-order-preserving message, i.e., what no order-preserving required
Message.
PKI modules are that Packet1 distributes the Group of preset non-order-preserving message and identifies Group0, and by Group0 and
It, will in the corresponding Work (being denoted as Work1) of storage address (being denoted as Address1) write-in Packet1 of Packet1 in memory
Work1 is sent to SSO modules.
It is the correspondence of preconfigured Group and Core in SSO modules referring to table 1.
| Group is identified | Core is identified |
| Group1 | Core1 |
| Group2、Group3 | Core2 |
| Group4~Group6 | Core3 |
| Group7~Group10 | Core4 |
| Group11~Group15 | Core5 |
Table 1
As shown in Table 1, the correspondence of Group0 and Core is not present in SSO modules.
When SSO modules determine that the Group in Work1 is identified as the Group marks of local preset non-order-preserving message
When Group0, the Core of processing Packet1 is determined.
In one embodiment, Core1~Core5 can be determined as handling the Core of Packet1, notice interrupts control
Device (not shown) triggering Core1~Core5 processed obtains Work from SSO modules.It is assumed that Core1 responds interruption at first, to
SSO modules send the instruction for obtaining Work, then Work1 is sent to Core1 by SSO modules, by Core1 based on the ground in Work1
Location Address1 reads Packet1 processing from memory.After other Core (Core2~Core5) responses are interrupted, by taking Core2 as an example,
The instruction for obtaining Work is sent to SSO modules, includes Group2, Group3 corresponding with Core2 if existing in SSO modules
The Work of Group marks, is denoted as Work2, then Work2 is sent to Core2 by SSO modules, and Core2 obtains Work2 from memory
Corresponding message is handled；If Core2 does not get Work from SSO modules, interruption is exited.
In another embodiment, the correspondence for the Group and Core that SSO modules are recorded based on table 1, statistics are each
The quantity of the corresponding Work of a Core then counts for example, it is found that Core2 is with Group2 and Group3, there are correspondences by 1
The quantity of Work comprising Group2 and the Work comprising Group3 in SSO modules, the quantity of the corresponding Work of as Core2,
Similarly, the quantity of each Core corresponding Work in SSO modules is counted.It is assumed that the knot of Core1~Core5 statistics
Fruit is followed successively by：100,80,60,40,20, if the process performance of each Core is identical, preset identical number
Threshold value is measured, for example, 50, wherein the statistical result of Core1~Core3 is both greater than 50, illustrates the processing of Core1~Core3
Pressure is larger；The statistical result of Core4 and Core5 is less than 50, illustrates that the processing pressure of Core4 and Core5 are smaller, then notifies
Interrupt control unit triggering Core4 and Core5 obtains Work from SSO modules.It is assumed that Core4 responds interruption at first, then SSO moulds
The corresponding Work1 of Packet1 can be sent to Core4 by block, be read from memory based on the address Address1 in Work1 by Core4
Take Packet1 processing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should be included within the scope of protection of the invention god.
Claims (11)
1. a kind of multi-core processor, which is characterized in that the multi-core processor includes：Message receives PKI modules, dispatching message
SSO modules, multiple core Core；
The PKI modules, for when it is non-order-preserving message to determine the message received, non-order-preserving message pair to be distributed for the message
The Group marks of first Group are filled up in the corresponding work item Work of the message by the first group of Group answered, will
The Work is sent to the SSO modules；
The SSO modules, when for being identified as the Group marks of the first Group in the Group for determining that Work includes,
It is that the Work corresponds to message the first Core of distribution, and triggers the first Core from the SSO moulds from the multiple Core
Block obtains the Work for the Group marks for including the first Group, if the first Core is got including described first
The Work of the Group marks of Group then reads corresponding message from memory and is handled.
2. processor as described in claim 1, it is characterised in that：
The PKI modules are additionally operable to receive the configuration order for the message characteristic for carrying non-order-preserving message；If the message of the message
Feature hits the message characteristic of the non-order-preserving message, determines that the message is non-order-preserving message.
3. processor as described in claim 1, it is characterised in that：
The SSO modules are specifically used for regarding the multiple Core as the first Core, distribute to the Work and correspond to message.
4. processor as described in claim 1, it is characterised in that：
The SSO modules are specifically used for counting the correspondence distribution based on Group and Core present in the SSO modules
To the quantity of the Work of the same Core；The quantity of the Work of statistics is less than the Core of preset quantity threshold value as first
Core distributes to the Work and corresponds to message.
5. processor as described in claim 1, it is characterised in that：Match pattern, the matching are preset in the PKI modules
Pattern includes：Match pattern based on five-tuple information, the match pattern based on triplet information；
The PKI modules are additionally operable to when the message of the reception is order-preserving message, are the report according to preset match pattern
The Group marks of 2nd Group are filled up in the corresponding Work of the message by text the 2nd Group of distribution, will be described
Work is sent to the SSO modules, so that twoth Core corresponding with the 2nd Group includes from SSO modules acquisition
The Work of the Group marks of 2nd Group, and message is read from the memory based on the Work of acquisition and is handled.
6. a kind of message processing method, the message for including applied to multi-core processor receives PKI modules, which is characterized in that described
Multi-core processor further includes：Dispatching message SSO modules, multiple core Core, the method includes：
When it is non-order-preserving message to determine the message received, distribute non-order-preserving message corresponding first group of Group for the message；
The Group marks of first Group are filled up in the corresponding work item Work of the message, the Work is sent
To the SSO modules, so that the SSO modules are determining that the Group that Work includes is identified as the first Group
It is that the Work corresponds to message the first Core of distribution, and triggers the first Core from the multiple Core when Group is identified
From the SSO modules obtain include the first Group Group mark Work, if the first Core get including
The Work of the Group marks of first Group then reads corresponding message from memory and is handled.
7. method as claimed in claim 6, which is characterized in that described to distribute non-order-preserving message corresponding first for the message
Before Group, further include：
Receive the configuration order for the message characteristic for carrying non-order-preserving message；
If the message characteristic of the message hits the message characteristic of the non-order-preserving message, determine that the message is non-order-preserving report
Text.
8. method as claimed in claim 6, it is characterised in that：Match pattern, the matching mould are preset in the PKI modules
Formula includes：Match pattern based on five-tuple information, the match pattern based on triplet information；
It is that the message distributes the 2nd Group according to preset match pattern when the message of the reception is order-preserving message, it will
The Group marks of 2nd Group are filled up in the corresponding Work of the message, and the Work is sent to the SSO moulds
Block so that twoth Core corresponding with the 2nd Group from the SSO modules obtain include the 2nd Group Group
The Work of mark, and message is read from the memory based on the Work of acquisition and is handled.
9. a kind of message processing method, the dispatching message SSO modules for including applied to multi-core processor, which is characterized in that described
Multi-core processor further includes：Message receives PKI modules, multiple core Core, the method includes：
Determining that group Group that work item Work includes is identified as the Group marks of corresponding first Group of non-order-preserving message
When, it is that the Work corresponds to the first Core of message distribution from the multiple Core；
The Work that the first Core is identified from the Group that SSO modules acquisition includes the first Group is triggered, if institute
The Work that the first Core gets the Group marks including the first Group is stated, then is read in memory at corresponding message
Reason；
Wherein, the Work that the first Core is obtained is that the PKI modules are non-order-preserving message and are in the determining message received
After the message distributes the first Group, the Group marks of the first Group of distribution are filled up to the message and are corresponded to
Work in, and to be sent to the SSO moulds in the block by the Work after will fill in.
10. method as claimed in claim 9, which is characterized in that described is that the Work corresponds to report from the multiple Core
Text the first Core of distribution, including：
It regard the multiple Core as the first Core, distributes to the Work and correspond to message.
11. method as claimed in claim 9, which is characterized in that described is that the Work corresponds to report from the multiple Core
Text the first Core of distribution, including：
Count the Work that the correspondence based on Group and Core present in the SSO modules distributes to the same Core
Quantity；
The Core that the quantity of the Work of statistics is less than preset quantity threshold value distributes to the Work and corresponds to report as the first Core
Text.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109714273A (en) * | 2018-12-25 | 2019-05-03 | 武汉思普崚技术有限公司 | A kind of message processing method and device of multi-core network device |
| CN113033791A (en) * | 2019-12-24 | 2021-06-25 | 中科寒武纪科技股份有限公司 | Computing device for order preservation, integrated circuit device, board card and order preservation method |
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| CN113033791B (en) * | 2019-12-24 | 2024-04-05 | 中科寒武纪科技股份有限公司 | Computing device, integrated circuit device, board card and order preserving method for order preserving |
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