CN106789750A - A kind of high-performance calculation interconnected network system and communication means - Google Patents
A kind of high-performance calculation interconnected network system and communication means Download PDFInfo
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- CN106789750A CN106789750A CN201710038649.6A CN201710038649A CN106789750A CN 106789750 A CN106789750 A CN 106789750A CN 201710038649 A CN201710038649 A CN 201710038649A CN 106789750 A CN106789750 A CN 106789750A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/10—Packet switching elements characterised by the switching fabric construction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/15—Interconnection of switching modules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/356—Switches specially adapted for specific applications for storage area networks
- H04L49/357—Fibre channel switches
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Abstract
A kind of high-performance calculation interconnected network system and communication means, system of the invention includes the three-level unit that primary unit, the secondary unit of photoelectricity hybrid switching machine composition and the secondary unit of electric packet switch composition are made up of optical switch in group, and three-level unit is interconnected into whole system by optical switch between group.Communication means of the invention is the multistage communication that the exchanging mechanism mixed using electric packet switch mechanism and photoelectricity realizes system, the communication between primary unit and secondary unit is realized by electric packet switch mechanism between wherein electric packet switch and photoelectricity hybrid switching machine, photoelectricity hybrid switching machine realizes the communication between three-level unit with optical switch between group using the exchanging mechanism that photoelectricity mixes.The present invention not only makes system possess good scalability, and enhances the serious forgiveness of network, improves the stability of system, reduces the communication delay of network.
Description
Technical field
The invention belongs to communication technical field, a kind of high-performance in interference networks communication technical field is further related to
Calculate interconnected network system and communication means.The present invention is using arrayed-waveguide grating routers AWGR (arrayed waveguide
Grating router), the interconnected network system of photoelectricity hybrid switching machine and electric packet switch composition, realize high-performance calculation
Efficient communication in network between calculate node.
Background technology
With developing rapidly for High Performance Computing, high-performance calculation interference networks are via traditional electric exchange network
It is changed into photoelectricity mixing interference networks, meanwhile, it is effectively to meet demand of the high-performance calculation for super large amount of calculation, high-performance meter
Calculating network will possess tens thousand of nodes even hundreds thousand of nodes, and this is accomplished by a kind of efficient interference networks and communication means.
Document patent " the data center's light network net based on array waveguide grating that Xian Electronics Science and Technology University applies at it
One is disclosed in network system and communication means " (number of patent application CN 201210333133.1, publication number CN 102882811A)
Plant large-scale data center light interconnection network system and communication means based on array waveguide grating.The network system includes P layers
Network structure, every layer has K cluster, and each cluster is connected and composed by two convergence switches and K+1 frame, wherein, each machine
Frame is connected and composed by an edge of table interchanger and K-1 platform servers；Between edge switch between each cluster by specifying is used as cluster
Forwarding interchanger is connected with each other；Using the wavelength-division multiplex characteristic of array waveguide grating during communication, flow is distributed to each edge and is handed over
Change planes, realize light packet switch.The invention can effectively improve Waveguide array light in network on the premise of network performance is ensured
The utilization rate of grid, reduces network struction cost, and reduce the complexity of wiring.But, what the system of the patent was still present
Weak point is：1st, the network diameter of the system increases with the extension of interference networks, reduces network performance.2nd, lead between the cluster
Letter link easily becomes communication performance bottleneck, and serious forgiveness is low.
Patent document " the data center light interconnection network system based on hypercube cluster that Xian Electronics Science and Technology University applies at it
One kind is disclosed in system and communication means " (number of patent application CN201210133164.2, application publication number CN 102638411A)
Data center light interconnection network system and communication means based on hypercube cluster.The communication means of the invention is handed over according to frame top light
Changed planes switching port number n in included cluster, and the benchmark tree of generation n dimension hypercubes is led to for determining in hypercube topology a pair
Believe the relative position relation of connection, meanwhile, it is determined that for the wavelength set Φ communicated in clusterp, communication wavelengths set Φ in the clusterp
It is divided into n wavelength group, the number m of the cluster included further according to network, it is determined that for the wavelength set Φ communicated between clusterc, most
The position relationship according to packet calculates the communication wavelengths in cluster and between cluster by different operation methods afterwards.The method is adopted
With the static Wavelength Assignment and Wavelength reuse technology of optimization, overcome traditional wavelength division multiplexed network and waste tight for wavelength resource
The problem of weight.But, the weak point that the patent is still present be the method when communication wavelengths are distributed due to operation method compared with
It is complexity, communication delay increases, and reduces network performance.
The content of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned prior art, it is proposed that a kind of high-performance calculation interference networks system
System and communication means.
Realizing thinking of the invention is, a kind of multistage photoelectricity mixing interconnected network system is designed, by electric packet switch
The packet that the primary unit structure transmission calculate node of composition is produced；The secondary unit structure of photoelectricity hybrid switching machine composition
Destination address selection communication wavelengths in packet, the packet that forwarding primary unit structure sends；Two grades of lists
Meta structure is interconnected into three-level cellular construction by optical switch in group, and three-level cellular construction is used for the computing capability of extended network,
It is interconnected and extends by optical switch between group between three-level cellular construction.
Optical switch, the mechanical, electrical packet switch of photoelectricity hybrid switching between optical switch, group in system of the invention, including group
Machine, calculate node.Wherein：
Optical switch has X platforms in described group, and optical switch includes N × 8 switching port, each exchange end in every group
Mouth 1 photoelectricity hybrid switching machine of connection, wherein N is the positive integer more than or equal to zero；
Optical switch has between Y platforms, every group the optical switch to include 16 switching ports, each switching port between described group
The connected 16 photoelectricity hybrid switching machines of optical switch constitute one between 1 photoelectricity hybrid switching machine of connection, each group
Communication unit；
Described electric packet switch has L platforms, and every 8 electric packet switches are interconnected into a primary unit structure, every
Electric packet switch includes 1 uplink port, S downlink port and 6 switching ports, and wherein uplink port connects 1 photoelectricity
Hybrid switching machine, each downlink port connects 1 calculate node, and each switching port connects 1 electric packet switch, wherein S
It is the positive integer more than or equal to zero；
Described photoelectricity hybrid switching machine has Z platforms, and every 8 photoelectricity hybrid switching machines are interconnected into a secondary unit structure, 8
One three-level cellular construction of × M secondary unit structure composition, wherein M=N；Every photoelectricity hybrid switching machine is up including 2
Port, 8 downlink ports and 7 switching ports, light is exchanged 2 uplink ports between optical switch and 1 group with 1 group respectively
Machine is connected, and each downlink port connects 1 electric packet switch, and each switching port connects 1 photoelectricity hybrid switching machine；
The uplink port that described calculate node has L × S, each calculate node connects 1 electric packet switch, wherein
L represents the total number of units of electric packet switch, and S represents every downlink port number of electric packet switch.
Comprising the following steps that for network communication method is realized using system of the invention：
(1) packet is produced：
Calculate node produces packet, and the packet is sent to the local electricity packet being connected with the calculate node
Interchanger Rs；
(2) packet is parsed：
Local electricity packet switch Rs parsing packets, extract the destination address in packet；
(3) judge whether destination address in packet and the address of local electric packet switch Rs exist together a three-level
Cellular construction, if so, then performing step (4)；Otherwise, step (7) is performed；
(4) judge whether the destination address in packet exists together one two grades with the address of local electric packet switch Rs
Cellular construction, if so, then performing step (5)；Otherwise, step (7) is performed；
(5) judge whether destination address in packet and the address of local electric packet switch Rs exist together an one-level
Cellular construction, if so, then performing step (6)；Otherwise, step (7) is performed；
(6) local electricity packet switch Rs sends to purpose electricity packet switch Rd packet, performs step (23)；
(7) local electricity packet switch Rs sends to connected photoelectricity hybrid switching machine Es packet；
(8) judge whether the destination address in packet exists together one three with the address of local photoelectricity hybrid switching machine Es
Level cellular construction, if so, then performing step (9)；Otherwise, step (18) is performed；
(9) judge whether the destination address in packet exists together one two with the address of local photoelectricity hybrid switching machine Es
Level cellular construction, if so, then performing step (10)；Otherwise, step (16) is performed；
(10) local photoelectricity hybrid switching machine Es parsing packets, extract the destination address in packet；
(11) electricity that be stored in for packet in local cache by local photoelectricity hybrid switching machine Es exchanges subqueue；
(12) all electricity of local photoelectricity hybrid switching machine Es periodic queries local caches exchange subqueue；
(13) judge that electricity whether there is packet to be sent in exchanging subqueue, if so, performing step (14)；It is no
Then, step (12) is performed；
(14) photoelectricity hybrid switching machine Es sends to purpose photoelectricity hybrid switching machine Ed packet；
(15) photoelectricity hybrid switching machine Ed sends to electric packet switch Rd packet, performs step (23)；
(16) local photoelectricity hybrid switching machine Es selects to send the communication wavelengths of packet in Wavelength Assignment table, by number
According to optical switch ORa in packet transmission to connected group；
(17) optical switch ORa sends to purpose photoelectricity hybrid switching machine Ed packet in organizing, and performs step (15)；
(18) judge whether the destination address in packet exists together one with the address of local photoelectricity hybrid switching machine Es
Communication unit, if so, then performing step (19)；Otherwise, step (21) is performed；
(19) local photoelectricity hybrid switching machine Es selects to send the communication wavelengths of packet in Wavelength Assignment table, by number
According to packet transmission to optical switch ORb between connected group；
(20) optical switch ORb sends to purpose photoelectricity hybrid switching machine Ed packet between group, performs step (15)；
(21) photoelectricity hybrid switching machine Es sends to the photoelectricity with destination address in same communication unit packet
Hybrid switching machine Em；
(22) photoelectricity hybrid switching machine Em selects communication wavelengths according to Wavelength Assignment table, and packet is sent to connected
Optical switch ORb between group, performs step (20)；
(23) electricity packet switch Rd transmits data packets to purpose calculate node, and communication process is completed.
The present invention has advantages below compared with prior art：
First, due to using primary unit structure, secondary unit structure and three-level cellular construction group in system of the invention
Into system, the network diameter for overcoming system in the prior art increases with the extension of interference networks, reduces network performance
Shortcoming so that system of the invention is with good expansibility.
Second, due to the connection feature of primary unit and secondary unit in system of the invention, overcome in the prior art
Communication link easily becomes communication performance bottleneck, the low shortcoming of serious forgiveness between cluster so that the present invention has stability higher.
3rd, due to, using the method according to Wavelength Assignment table selection communication wavelengths, being overcome existing in the inventive method
When communication wavelengths are distributed because operation method is complex in technology, communication delay increases, and reduces the shortcoming of network performance,
So that network performance of the present invention with lower communication delay and Geng Gao.
Brief description of the drawings
Fig. 1 is the schematic diagram of present system；
Fig. 2 is primary unit connection diagram of the invention；
Fig. 3 is secondary unit connection diagram of the invention；
Fig. 4 is communication unit connection diagram of the invention；
Fig. 5 is the flow chart of communication means of the present invention.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Referring to the drawings 1, system of the invention is further described.
System of the invention includes optical switch, the mechanical, electrical packet switch of photoelectricity hybrid switching between optical switch, group in group
Machine, calculate node.Wherein：
Each three-level unit includes optical switch and 64 photoelectricity hybrid switching machines, optical switch in every group in 8 groups
Including 8 switching ports, each switching port connects 1 photoelectricity hybrid switching machine, is exchanged by light between group between three-level unit
Machine is connected.
Referring to the drawings 2, the primary unit to system of the invention is further described.
Each primary unit includes 8 electric packet switches and 32 calculate nodes, and 8 electric packet switches are connected into
One cubic shaped, two electric packet switches in cube on each face diagonal are connected；Every electric packet switch
Including 1 uplink port, 4 downlink ports and 6 switching ports, wherein uplink port connects 1 photoelectricity hybrid switching machine, often
Individual downlink port connects 1 calculate node, and each switching port connects 1 electric packet switch.
Referring to the drawings 3, the secondary unit to system of the invention is further described.
Each secondary unit includes 8 photoelectricity hybrid switching machines, and 8 photoelectricity hybrid switching machines are connected into a cube
Shape, each face diagonal is connected with two photoelectricity hybrid switching machines on each body diagonal in cube.
Referring to the drawings 4, the communication unit to present system is further described.
Each communication unit includes that optical switch includes 16 between optical switch and 2 secondary units between a group, every group
Individual switching port, each switching port connects connected 16 of optical switch between 1 photoelectricity hybrid switching machine, each group
Photoelectricity hybrid switching machine constitutes a communication unit.
The method of the present invention is further described with reference to Fig. 5.
Step 1. produces packet.
Calculate node produces packet, and the packet is sent to the local electricity packet being connected with the calculate node
Interchanger Rs.
Step 2. parses packet.
Local electricity packet switch Rs parsing packets, extract the destination address in packet.
Step 3. judges whether the destination address in packet exists together one with the address of local electric packet switch Rs
Three-level cellular construction, if so, then performing step 4；Otherwise, step 7 is performed.
Step 4. judges whether the destination address in packet exists together one with the address of local electric packet switch Rs
Secondary unit structure, if so, then performing step 5；Otherwise, step 7 is performed.
Step 5. judges whether the destination address in packet exists together one with the address of local electric packet switch Rs
Primary unit structure, if so, then performing step 6；Otherwise, step 7 is performed.
The local electricity packet switch Rs of step 6. sends to purpose electricity packet switch Rd packet, performs step
23。
The local electricity packet switch Rs of step 7. sends to connected photoelectricity hybrid switching machine Es packet.
Step 8. judges whether destination address in packet and the address of local photoelectricity hybrid switching machine Es exist together one
Individual three-level cellular construction, if so, then performing step 9；Otherwise, step 18 is performed.
Step 9. judges whether destination address in packet and the address of local photoelectricity hybrid switching machine Es exist together one
Individual secondary unit structure, if so, then performing step 10；Otherwise, step 16 is performed.
The local photoelectricity hybrid switching machine Es parsings packet of step 10., extracts the destination address in packet.
The electricity that be stored in for packet in local cache by the local photoelectricity hybrid switching machine Es of step 11. exchanges subqueue.
All electricity of the local photoelectricity hybrid switching machine Es periodic queries local caches of step 12. exchange subqueue.
Step 13. judges that electricity whether there is packet to be sent in exchanging subqueue, if so, performing step 14；It is no
Then, step 12 is performed.
Step 14. photoelectricity hybrid switching machine Es sends to purpose photoelectricity hybrid switching machine Ed packet.
Step 15. photoelectricity hybrid switching machine Ed sends to electric packet switch Rd packet, performs step (23).
The local photoelectricity hybrid switching machine Es of step 16., according to the input port sequence number and output port of optical switch in group
Sequence number, is selected to send the communication wavelengths of packet from the Wavelength Assignment table of table 1 below, and packet is sent to connected
Optical switch ORa in group.
The Wavelength Assignment table of table 1
Wherein, the row headers of Wavelength Assignment table represent output port sequence number, and column heading represents input port sequence number, in form
Hold to send the communication wavelengths of packet, the output port number of optical switch in F expression groups, optical switch in G expression groups
Input port number, F=G.
Optical switch ORa sends to purpose photoelectricity hybrid switching machine Ed packet in step 17. group, performs step
15。
Step 18. judges whether destination address in packet and the address of local photoelectricity hybrid switching machine Es exist together one
Individual communication unit, if so, then performing step 19；Otherwise, step 21 is performed.
The local photoelectricity hybrid switching machine Es of step 19., according to optical switch between group from the Wavelength Assignment table of above-mentioned table 1
Input port sequence number and the selection of output port sequence number send the communication wavelengths of packet, and packet is sent to connected group
Between optical switch ORb.
Optical switch ORb sends to purpose photoelectricity hybrid switching machine Ed packet between step 20. group, performs step
15。
Step 21. photoelectricity hybrid switching machine Es sends to the light with destination address in same communication unit packet
Electric hybrid switching machine Em.
Step 22. photoelectricity hybrid switching machine Em, according to input port and output port from the Wavelength Assignment table of above-mentioned table 1
Sequence number selection send packet communication wavelengths, packet is sent to optical switch ORb between connected group, perform step
Rapid 20.
Step 23. electricity packet switch Rd transmits data packets to purpose calculate node, and communication process is completed.
Claims (5)
1. a kind of interior optical switch, the photoelectricity hybrid switching between optical switch, group of high-performance calculation interconnected network system, including group
Mechanical, electrical packet switch, calculate node；It is characterized in that：
Optical switch has X platforms in described group, and optical switch includes N × 8 switching port in every group, and each switching port connects
1 photoelectricity hybrid switching machine is connect, wherein N is the positive integer more than or equal to zero；
Optical switch has between Y platforms, every group the optical switch to include 16 switching ports, the connection of each switching port between described group
The connected 16 photoelectricity hybrid switching machines of optical switch constitute a communication between 1 photoelectricity hybrid switching machine, each group
Unit；
Described electric packet switch has L platforms, and every 8 electric packet switches are interconnected into a primary unit structure, every electricity point
Group interchanger includes 1 uplink port, S downlink port and 6 switching ports, and wherein uplink port connects 1 photoelectricity mixing
Interchanger, each downlink port connects 1 calculate node, and each switching port connects 1 electric packet switch, and wherein S is big
In null positive integer；
Described photoelectricity hybrid switching machine has Z platforms, and every 8 photoelectricity hybrid switching machines are interconnected into a secondary unit structure, 8 × M
One three-level cellular construction of individual secondary unit structure composition, wherein M=N；Every photoelectricity hybrid switching machine includes 2 upstream ends
Mouthful, 8 downlink ports and 7 switching ports, 2 uplink ports respectively with optical switch between optical switch and 1 group in 1 group
Connection, each downlink port connects 1 electric packet switch, and each switching port connects 1 photoelectricity hybrid switching machine；
The uplink port that described calculate node has L × S, each calculate node connects 1 electric packet switch, wherein L tables
Show the total number of units of electric packet switch, S represents every downlink port number of electric packet switch.
2. a kind of high-performance calculation interconnected network system according to claim 1, it is characterised in that described X, Y, Z, L
Value determined by following formula respectively：
X=[(N × 8)+1] × 8
Y=[(N × 8)+1] (N × 4)
Z=[(N × 8)+1] × N × 64
L=[(N × 8)+1] × N × 512
Wherein, the total number of units of optical switch in X expressions group, N is that optical switch is total between the positive integer more than or equal to zero, Y expression groups
Number of units, Z represents the total number of units of photoelectricity hybrid switching machine, and L represents the total number of units of electric packet switch.
3. a kind of high-performance calculation interconnected network system according to claim 1, it is characterised in that：Described every 8 electricity
Packet switch is interconnected into a primary unit structure, and every 8 electric packet switches are connected into a cubic shaped,
Two electric packet switches in cube on each face diagonal are connected.
4. a kind of high-performance calculation interconnected network system according to claim 1, it is characterised in that：Every 8 photoelectricity mixing
Interchanger is interconnected into a secondary unit structure, and every 8 photoelectricity hybrid switching machines are connected into a cubic shaped, stands
Each face diagonal is connected with two photoelectricity hybrid switching machines on each body diagonal in cube.
5. a kind of high-performance calculation interference networks method, comprises the following steps：
(1) packet is produced：
Calculate node produces packet, and the packet is sent to the local electric packet switch being connected with the calculate node
Machine Rs；
(2) packet is parsed：
Local electricity packet switch Rs parsing packets, extract the destination address in packet；
(3) judge whether destination address in packet and the address of local electric packet switch Rs exist together a three-level unit
Structure, if so, then performing step (4)；Otherwise, step (7) is performed；
(4) judge whether destination address in packet and the address of local electric packet switch Rs exist together a secondary unit
Structure, if so, then performing step (5)；Otherwise, step (7) is performed；
(5) judge whether destination address in packet and the address of local electric packet switch Rs exist together a primary unit
Structure, if so, then performing step (6)；Otherwise, step (7) is performed；
(6) local electricity packet switch Rs sends to purpose electricity packet switch Rd packet, performs step (23)；
(7) local electricity packet switch Rs sends to connected photoelectricity hybrid switching machine Es packet；
(8) judge whether destination address in packet and the address of local photoelectricity hybrid switching machine Es exist together a three-level list
Meta structure, if so, then performing step (9)；Otherwise, step (18) is performed；
(9) judge whether destination address in packet and the address of local photoelectricity hybrid switching machine Es exist together two grades of lists
Meta structure, if so, then performing step (10)；Otherwise, step (16) is performed；
(10) local photoelectricity hybrid switching machine Es parsing packets, extract the destination address in packet；
(11) electricity that be stored in for packet in local cache by local photoelectricity hybrid switching machine Es exchanges subqueue；
(12) all electricity of local photoelectricity hybrid switching machine Es periodic queries local caches exchange subqueue；
(13) judge that electricity whether there is packet to be sent in exchanging subqueue, if so, performing step (14)；Otherwise, hold
Row step (12)；
(14) photoelectricity hybrid switching machine Es sends to purpose photoelectricity hybrid switching machine Ed packet；
(15) photoelectricity hybrid switching machine Ed sends to electric packet switch Rd packet, performs step (23)；
(16) local photoelectricity hybrid switching machine Es selects to send the communication wavelengths of packet in Wavelength Assignment table, by data point
Group is sent to optical switch ORa in connected group；
(17) optical switch ORa sends to purpose photoelectricity hybrid switching machine Ed packet in organizing, and performs step (15)；
(18) judge the destination address in packet communicates with whether the address of local photoelectricity hybrid switching machine Es exists together one
Unit, if so, then performing step (19)；Otherwise, step (21) is performed；
(19) local photoelectricity hybrid switching machine Es selects to send the communication wavelengths of packet in Wavelength Assignment table, by data point
Group is sent to optical switch ORb between connected group；
(20) optical switch ORb sends to purpose photoelectricity hybrid switching machine Ed packet between group, performs step (15)；
(21) packet is sent to the photoelectricity with destination address in same communication unit and mixed by photoelectricity hybrid switching machine Es
Interchanger Em；
(22) photoelectricity hybrid switching machine Em selects communication wavelengths according to Wavelength Assignment table, and packet is sent between connected group
Optical switch ORb, performs step (20)；
(23) electricity packet switch Rd transmits data packets to purpose calculate node, and communication process is completed.
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| CN109617800B (en) * | 2019-01-18 | 2021-06-01 | 福建师范大学 | Data center network fault-tolerant safe routing method based on balance hypercube |
| CN111193971A (en) * | 2019-11-15 | 2020-05-22 | 西安电子科技大学 | Machine learning-oriented distributed computing interconnection network system and communication method |
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