CN116055542A - Network adapter and high-performance computing cluster server communication connection method - Google Patents
Network adapter and high-performance computing cluster server communication connection method Download PDFInfo
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- H—ELECTRICITY
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
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Abstract
The invention discloses a method for connecting a network adapter with a server of a high-performance computing cluster in a communication way; the method comprises the following steps: s1, installing and configuring a network adapter; s2, carrying out configuration processing on the server; s3, establishing network connection between the network adapter and the server; s4, connection and setting of access requests; s5, stable communication between the adapter and the server is realized; the invention realizes safer connection of communication connection between the adapter and the server through the first handshake and the second handshake, exchanges encryption and decryption modes, realizes safe data information transmission, carries out filtering treatment when the network adapter carries out data transmission, improves the accuracy of data transmission, and realizes monitoring treatment on data information and a channel through channel coding, channel decoding, channel capacity, channel bandwidth, channel monitoring and frame rate detection, thereby further improving the safety and the stable data transmission performance.
Description
Technical Field
The invention belongs to the technical field of communication connection, and particularly relates to a server communication connection method of a network adapter and a high-performance computing cluster.
Background
A network adapter, also known as a network card or network interface card, is a device that networks computers. The network card is a network adapter for connecting a PC to a LAN. The network card is inserted into a slot of the computer main board and is responsible for converting data to be transmitted by a user into a format which can be identified by other equipment on the network and transmitting the data through a network medium. Its main technical parameters are bandwidth, bus mode, electric interface mode, etc.;
the high-performance computing cluster, also called a data analysis supercomputer, is an open source data-intensive computing system platform developed by a communication risk solution of a legal quotient;
a server is a type of computer that runs faster, is more loaded, and is more expensive than a normal computer. The server provides computing or application services to other clients in the network (e.g., terminals such as PCs, smartphones, ATM, and even large devices such as train systems). The server has high-speed CPU operation capability, long-time reliable operation, strong I/O external data throughput capability and better expansibility;
in the process of using the network, communication connection is needed between the network adapter and the server to realize the transmission of data information, however, various connection modes in the market still have various problems.
The method and system for accessing the industrial adapter to the server disclosed by the authorization bulletin number CN108156240A realize stable connection of the industrial adapter to the server and flexible configuration and efficient operation of the server, wherein the industrial adapter is preset with IP addresses of at least two gateway devices, the industrial adapter can select available IP addresses of the server requested by the target gateway devices, the stability and reliability of connection are ensured, and secondly, the target gateway devices can determine the preferred server according to the load information of each server in the server cluster, so that the server resources of the server cluster are flexibly configured and efficiently used, but the problems that the encryption strength of the connection data between the existing adapter and the server is not high, safe encryption cannot be effectively realized, multiple handshakes cannot be realized, effective and stable communication connection and insufficient data transmission processing cannot be established are solved.
Disclosure of Invention
The present invention is directed to a method for connecting a network adapter to a server of a high-performance computing cluster, so as to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a method for connecting a network adapter with a server of a high-performance computing cluster in a communication way comprises the following steps:
s1, installing and configuring a network adapter: plugging and installing a plurality of network adapters in a host, and configuring and setting the network adapters;
s2, carrying out configuration processing on the server: installing the server through an add or delete program window in the control panel, and then configuring the server;
s3, establishing network connection between the network adapter and the server: the network adapter is connected with the target server according to a preset gateway IP address, and sends a gateway IP address request to realize first handshake between the network adapter and the server;
s4, connection and setting of access requests: when an access request initiated to a target server is received, analyzing request parameter information carried by the access request, realizing the storage of the parameter information, and then realizing a second handshake of data communication access again;
s5, realizing stable communication between the adapter and the server: when the adapter receives and uploads the data information, the adapter is in communication connection with the server through the firewall, so that safety protection communication is realized.
Preferably, the network adapter in S1 further includes a network card driver and an I/O technology, where the network card driver makes the network adapter compatible with a network operating system to implement communication between a PC and a network, and the I/O technology implements communication between the PC and the network card through a data bus, and the network adapter network card is an ethernet network card.
Preferably, the process of configuring and setting the network adapter in S1 is as follows:
s101, firstly entering a system desktop;
s102, entering a control panel homepage, selecting a management tool, and finding out computer management;
s103, clicking a device manager in the network adapter to find the network adapter in the secondary option;
s104, clicking a network card driver below the network adapter, finding out a driver Cheng Xun in an upper option bar, and then selecting an update driver to complete configuration and driving of the network adapter;
the network adapter communicates with the host's connection network card and host, and the bus types are typically ISA, EISA, MCA, VL and PCI.
Preferably, the network adapter in S1 performs encryption and decryption processing on the transmitted data information and the received data information when in use, and the encryption and decryption process adopts a hash algorithm,
the calculation formula of the hash algorithm is as follows;
address＝H[key]；
the hash conflict resolution algorithm of the hash algorithm comprises a linear exploration method, a secondary exploration method and a double hash method;
method of linear exploration
hi＝(h(key)+i)％m，0≤i≤m-1；
Namely, from address d, firstly, T [ d ] is probed, then T [ d+1] is probed in turn, … is probed until T [ m-1], and then the test is circulated to T [0], T [1] and … until the test is performed to have a spare address or to T [ d-1 ];
secondary probing method
hi＝(h(key)+i*i)％m，0≤i≤m-1；
Namely, starting from address d during probing, firstly probing T [ d ], then sequentially probing T [ d+1^2], T [ d+2^2], T [ d+3^2], …, and the like until a spare address is detected or T [ d-1] is detected;
dual hashing
hi＝(h(key)+i*h1(key))％m，0≤i≤m-1；
I.e. from address d, T [ d ] is probed first, then T [ d+h1 (d) ], T [ d+2×h1 (d) ], ….
Preferably, the first handshake in S3 is to implement identity recognition and verification, that is, send a request to a signing center, the signing center replies signature information, decrypt a digital signature by a public key, derive a digital digest, hash an electronic document to obtain a new digital digest, compare a hash value of the digest with the digital signature, verify the same signature, or else, invalidate, and the server recognizes by a naive bayes algorithm, where the formula of the naive bayes algorithm is as follows:
wherein B is the category of data, A is the characteristic of the data;
the further formula is:
the probabilities calculated by the two formulas are:
preferably, the server in S2 is configured as follows:
s201, applying for an account to the server, and converting the IP address of the router into static IP, so that the connection of the server is facilitated;
s202, entering a router management interface to fill in dynamic DNS service information, filling in an account and a password of an application, starting ddns, and displaying successful connection;
s203, setting static address reservation in a router DHCP server, binding a mac address with a certain IP address, wherein the IP address is a fixed certain intranet IP address;
s204, setting a virtual server and a dmz host, and exposing a personal computer of the host to an external network;
and S205, mapping the port and the personal computer, and opening the corresponding port according to different needs of the individual.
Preferably, the port is configured to implement mapping connection with the network adapter, and the second handshake is configured to negotiate an encryption algorithm and an encryption key for communication, so as to pair the IP address of the server, and perform data interaction and access information sending through the IP address of the server.
Preferably, the network adapter includes channel coding, channel decoding, channel capacity, channel bandwidth and channel monitoring when transmitting and receiving data information, the channel coding and the channel decoding encode and decode the data information to realize output and input transmission of data, the channel capacity is expressed as the number of bits of binary bits transmitted in unit time, the channel bandwidth is defined as a lower limit frequency and an upper limit frequency of a signal allowed to pass through the channel, and the calculation formula of the channel bandwidth is as follows: w=f2-f 1, where f1 is the lowest frequency that the channel can pass and f2 is the highest frequency that the channel can pass.
Preferably, the network adapter detects the frame rate through frame rate detection when receiving and transmitting the data information, the frame rate detection is used for detecting the transmitted data information, counting the number of rising edges and falling edges of V in 1s by counting 1s by a counter, the counter adopts clock detection, the frame rate detection further comprises a comparator, the comparator is used for judging the value of the frame rate, and when the value of the frame rate compared by the comparator is lower, the mode converter is used for adjusting the communication mode.
Preferably, the network adapter includes a data acquisition circuit for receiving data information, a data conversion circuit for converting the data information, a data gain circuit for amplifying the data information, and a data filter circuit for removing impurities from the data information;
the data filtering circuit adopts second-order IIR low-pass filtering or fifth-order FIR low-pass filtering;
the calculation formula of the second-order IIR low-pass filtering is as follows:
y (n) is output data, x n For input data, a and b are coefficients of the filter;
the calculation formula of the five-order FIR low-pass filtering is as follows:
x (n) for inputting signals, k (k) For FIR filter coefficients, y (n) is the filtered signal; n represents the number of taps of the FIR filter, and the filter order is N-1.
Compared with the prior art, the invention has the beneficial effects that:
when the method is used, the communication connection between the adapter and the server is realized through the first handshake and the second handshake, in addition, when the network adapter is connected through each handshake, information identification is needed, the safety is improved, encryption and decryption are exchanged, safe data information is transmitted, when the first handshake is used, the identification of the two parties is realized, signature identification is carried out, and the signature identification is carried out, compared with the prior art, the safety can be effectively improved, in addition, when the network adapter is used for carrying out data transmission, the filtering processing can be effectively carried out, the accuracy of the data transmission is improved, and the monitoring processing on the data information and the channel is realized through channel coding, channel decoding, channel capacity, channel bandwidth, channel monitoring and frame rate detection, so that the safety and the stable data transmission performance are further improved.
Drawings
FIG. 1 is a schematic flow chart of the steps of the present invention;
FIG. 2 is a schematic diagram of a configuration and setup flow of a network adapter of the present invention;
fig. 3 is a schematic diagram of a configuration and setting flow of a server according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the present invention provides a technical solution: a method for connecting a network adapter with a server of a high-performance computing cluster in a communication way comprises the following steps:
s1, installing and configuring a network adapter: plugging and installing a plurality of network adapters in a host, and configuring and setting the network adapters;
s2, carrying out configuration processing on the server: installing the server through an add or delete program window in the control panel, and then configuring the server;
s3, establishing network connection between the network adapter and the server: the network adapter is connected with the target server according to a preset gateway IP address, and sends a gateway IP address request to realize first handshake between the network adapter and the server;
s4, connection and setting of access requests: when an access request initiated to a target server is received, analyzing request parameter information carried by the access request, realizing the storage of the parameter information, and then realizing a second handshake of data communication access again;
s5, realizing stable communication between the adapter and the server: when the adapter receives and uploads the data information, the adapter is in communication connection with the server through the firewall, so that safety protection communication is realized.
In order to realize driving and connection of the network adapter, in this embodiment, preferably, the network adapter in S1 further includes a network card driver and an I/O technology, where the network card driver makes the network adapter compatible with a network operating system, so as to realize communication between the PC and a network, and the I/O technology realizes communication between the PC and the network card through a data bus, and the network adapter network card adopts an ethernet network card.
In order to implement configuration and setting of the network adapter, in this embodiment, preferably, the process of configuring and setting the network adapter in S1 is as follows:
s101, firstly entering a system desktop;
s102, entering a control panel homepage, selecting a management tool, and finding out computer management;
s103, clicking a device manager in the network adapter to find the network adapter in the secondary option;
s104, clicking a network card driver below the network adapter, finding out a driver Cheng Xun in an upper option bar, and then selecting an update driver to complete configuration and driving of the network adapter;
the network adapter communicates with the host's connection network card and host, and the bus types are typically ISA, EISA, MCA, VL and PCI.
In order to implement encryption and decryption processing on the transmitted data information, in this embodiment, preferably, when the network adapter in S1 is used, encryption and decryption processing is performed on the transmitted data information and the received data information, and a hash algorithm is adopted in the encryption and decryption process,
the calculation formula of the hash algorithm is as follows;
address＝H[key]；
the hash conflict resolution algorithm of the hash algorithm comprises a linear exploration method, a secondary exploration method and a double hash method;
method of linear exploration
hi＝(h(key)+i)％m，0≤i≤m-1；
Namely, from address d, firstly, T [ d ] is probed, then T [ d+1] is probed in turn, … is probed until T [ m-1], and then the test is circulated to T [0], T [1] and … until the test is performed to have a spare address or to T [ d-1 ];
secondary probing method
hi＝(h(key)+i*i)％m，0≤i≤m-1；
Namely, starting from address d during probing, firstly probing T [ d ], then sequentially probing T [ d+1^2], T [ d+2^2], T [ d+3^2], …, and the like until a spare address is detected or T [ d-1] is detected;
dual hashing
hi＝(h(key)+i*h1(key))％m，0≤i≤m-1；
I.e. from address d, T [ d ] is probed first, then T [ d+h1 (d) ], T [ d+2×h1 (d) ], ….
In order to realize the connection of the first handshake and the secure connection, and exchange information between the network adapter and the server, in this embodiment, preferably, the first handshake in S3 is used to realize identity recognition and verification, that is, send a request to a signing center, the signing center replies signature information, decrypt a digital signature by a public key, derive a digital digest, and perform a hash algorithm on an electronic file original to obtain a new digital digest, compare the hash value of the digest with the digital signature, verify the same signature, or else, invalidate the same signature, and the server recognizes the same by a naive bayes algorithm, and the formula of the naive bayes algorithm is as follows:
wherein B is the category of data, A is the characteristic of the data;
the further formula is:
the probabilities calculated by the two formulas are:
in order to implement configuration of the server, in this embodiment, preferably, the configuration of the server in S2 is as follows:
s201, applying for an account to the server, and converting the IP address of the router into static IP, so that the connection of the server is facilitated;
s202, entering a router management interface to fill in dynamic DNS service information, filling in an account and a password of an application, starting ddns, and displaying successful connection;
s203, setting static address reservation in a router DHCP server, binding a mac address with a certain IP address, wherein the IP address is a fixed certain intranet IP address;
s204, setting a virtual server and a dmz host, and exposing a personal computer of the host to an external network;
and S205, mapping the port and the personal computer, and opening the corresponding port according to different needs of the individual.
In order to realize connection between the port of the server and the network adapter and realize port matching, in this embodiment, preferably, the port is set up to realize mapping connection with the network adapter, and the second handshake is used for negotiating an encryption algorithm and an encryption key for communication, so as to pair the IP addresses of the server, and perform data interaction and access information transmission through the IP addresses of the server.
In order to realize the monitoring processing on the transmission channel of the network adapter, in this embodiment, preferably, the network adapter includes channel coding, channel decoding, channel capacity, channel bandwidth and channel monitoring when transmitting and receiving data information, the channel coding and the channel decoding encode and decode the data information to realize the output and input transmission of data, the channel capacity is expressed as the number of bits of binary bits transmitted in unit time, the channel bandwidth is defined as the lower limit frequency and the upper limit frequency of the signal allowed to pass through the channel, and the calculation formula of the channel bandwidth is as follows: w=f2-f 1, where f1 is the lowest frequency that the channel can pass and f2 is the highest frequency that the channel can pass.
In order to detect the frame rate of data transmission and maintain the stability of the frame rate, in this embodiment, preferably, the network adapter detects the frame rate through frame rate detection when receiving and transmitting data information, the frame rate detection is used for detecting the transmitted data information, counting the number of rising edges and falling edges of V within 1s by counting the number of 1s by a counter, the counter adopts clock detection, the frame rate detection further includes a comparator, the comparator determines the value of the frame rate, and when the value of the frame rate compared by the comparator is lower, the mode converter adjusts the communication mode.
In order to realize the filtering processing on the data transmission of the network adapter and improve the accuracy of the data information, in this embodiment, preferably, the network adapter includes a data acquisition circuit for receiving the data information, a data conversion circuit for converting the data information, a data gain circuit for amplifying the data information, and a data filtering circuit for removing the impurities of the data information;
the data filtering circuit adopts second-order IIR low-pass filtering or fifth-order FIR low-pass filtering;
the calculation formula of the second-order IIR low-pass filtering is as follows:
y (n) is output data, x n For input data, a and b are coefficients of the filter;
the calculation formula of the five-order FIR low-pass filtering is as follows:
x (n) for inputting signals, k (k) For FIR filter coefficients, y (n) is the filtered signal; n represents the number of taps of the FIR filter, and the filter order is N-1.
The working principle and the using flow of the invention are as follows:
s1, installing and configuring a network adapter: the method comprises the steps that a plurality of network adapters are installed in a plugging mode in a host, configuration and setting of the network adapters are realized, the network adapters further comprise network card driving programs and I/O technology, the network adapters comprise channel coding, channel decoding, channel capacity, channel bandwidth and channel monitoring when transmitting and receiving data information, the channel coding and the channel decoding encode and decode the data information, output and input transmission of data are realized, the channel capacity is expressed as the bit number of binary bits transmitted in unit time, the channel bandwidth is defined as the lower limit frequency and the upper limit frequency of a signal allowed to pass through the channel, and the calculation formula of the channel bandwidth is as follows: w=f2-f 1, where f1 is the lowest frequency at which a channel can pass, f2 is the highest frequency at which a channel can pass, the network adapter detects a frame rate by detecting a frame rate when receiving and transmitting data information, the frame rate detection is used for detecting the transmitted data information, counting the number of rising edges and falling edges of V within 1s again by counting 1s by a counter, the counter adopts clock detection, the frame rate detection further includes a comparator, the comparator determines a value of the frame rate, and when the value of the frame rate compared by the comparator is lower, the communication mode is adjusted by the mode converter;
s2, carrying out configuration processing on the server: installing the server through an 'add or delete program' window in the control panel, and then configuring the server;
s3, establishing network connection between the network adapter and the server: the network adapter connects with the target server according to the preset gateway IP address and sends the gateway IP address request, the first handshake between the network adapter and the server is realized, the first handshake is used for realizing identity recognition and verification, namely, the request is sent to the signature center, the signature center replies signature information, the digital signature is decrypted through the public key, the digital digest is derived, the hash algorithm is carried out on the original text of the electronic file to obtain a new digital digest, the hash value of the digest is compared with the result of the digital signature, the same signature is verified, otherwise, the server is invalid, and the server is identified through the naive Bayesian algorithm;
s4, connection and setting of access requests: when an access request initiated to a target server is received, analyzing request parameter information carried by the access request, realizing storage of the parameter information, then realizing second handshake of data communication access again, wherein a port is formed for realizing mapping connection with the network adapter, the second handshake is used for negotiating an encryption algorithm and an encryption key of communication, realizing pairing of IP addresses of the server, carrying out data interaction and access information sending through the IP addresses of the server, and carrying out encryption and decryption processing on transmitted data information and received data information when the network adapter is used, and the encryption and decryption processes adopt a hash algorithm;
s5, realizing stable communication between the adapter and the server: when the adapter receives and uploads the data information, the adapter is in communication connection with the server through the firewall to realize safety protection communication, and the network adapter comprises a data acquisition circuit for receiving the data information, a data conversion circuit for converting the data information, a data gain circuit for amplifying the data information and a data filter circuit for removing impurities from the data information.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A method for connecting a network adapter to a server of a high-performance computing cluster in a communication manner, comprising the steps of:
s1, installing and configuring a network adapter: plugging and installing a plurality of network adapters in a host, and configuring and setting the network adapters;
s2, carrying out configuration processing on the server: installing the server through an add or delete program window in the control panel, and then configuring the server;
s3, establishing network connection between the network adapter and the server: the network adapter is connected with the target server according to a preset gateway IP address, and sends a gateway IP address request to realize first handshake between the network adapter and the server;
s4, connection and setting of access requests: when an access request initiated to a target server is received, analyzing request parameter information carried by the access request, realizing the storage of the parameter information, and then realizing a second handshake of data communication access again;
s5, realizing stable communication between the adapter and the server: when the adapter receives and uploads the data information, the adapter is in communication connection with the server through the firewall, so that safety protection communication is realized.
2. A method of connecting a network adapter to a server of a high performance computing cluster in accordance with claim 1, wherein: the network adapter in the S1 further comprises a network card driving program and an I/O technology, wherein the network card driving program enables the network adapter to be compatible with a network operation system, communication between a PC and a network is achieved, the I/O technology enables communication between the PC and the network card to be achieved through a data bus, and the network adapter adopts an Ethernet network card.
3. A method of connecting a network adapter to a server of a high performance computing cluster in accordance with claim 1, wherein: the process of configuring and setting the network adapter in S1 is as follows:
s101, firstly entering a system desktop;
s102, entering a control panel homepage, selecting a management tool, and finding out computer management;
s103, clicking a device manager in the network adapter to find the network adapter in the secondary option;
s104, clicking a network card driver below the network adapter, finding out a driver Cheng Xun in an upper option bar, and then selecting an update driver to complete configuration and driving of the network adapter;
the network adapter communicates with the host's connection network card and host, and the bus types are typically ISA, EISA, MCA, VL and PCI.
4. A method of connecting a network adapter to a server of a high performance computing cluster in accordance with claim 1, wherein: when the network adapter in the S1 is used, the transmitted data information and the received data information are encrypted and decrypted, the encryption and decryption processes adopt a hash algorithm,
the calculation formula of the hash algorithm is as follows;
address＝H[key]；
the hash conflict resolution algorithm of the hash algorithm comprises a linear exploration method, a secondary exploration method and a double hash method;
method of linear exploration
hi＝(h(key)+i)％m，0≤i≤m-1；
Namely, from address d, firstly, T [ d ] is probed, then T [ d+1] is probed in turn, … is probed until T [ m-1], and then the test is circulated to T [0], T [1] and … until the test is performed to have a spare address or to T [ d-1 ];
secondary probing method
hi＝(h(key)+i*i)％m，0≤i≤m-1；
Namely, starting from address d during probing, firstly probing T [ d ], then sequentially probing T [ d+1^2], T [ d+2^2], T [ d+3^2], …, and the like until a spare address is detected or T [ d-1] is detected;
dual hashing
hi＝(h(key)+i*h1(key))％m，0≤i≤m-1；
I.e. from address d, T [ d ] is probed first, then T [ d+h1 (d) ], T [ d+2×h1 (d) ], ….
5. A method of connecting a network adapter to a server of a high performance computing cluster in accordance with claim 1, wherein: the first handshake in S3 is to implement identity recognition and verification, that is, send a request to a signing center, the signing center replies signature information, decrypt a digital signature through a public key, derive a digital digest, perform a hash algorithm on an electronic document to obtain a new digital digest, compare a hash value of the digest with the digital signature, verify the same signature, or else, is invalid, and the server performs recognition through a naive bayes algorithm, where the formula of the naive bayes algorithm is as follows:
wherein B is the category of data, A is the characteristic of the data;
the further formula is:
the probabilities calculated by the two formulas are:
6. a method of connecting a network adapter to a server of a high performance computing cluster in accordance with claim 1, wherein: the configuration of the server in S2 is as follows:
s201, applying for an account to the server, and converting the IP address of the router into static IP, so that the connection of the server is facilitated;
s202, entering a router management interface to fill in dynamic DNS service information, filling in an account and a password of an application, starting ddns, and displaying successful connection;
s203, setting static address reservation in a router DHCP server, binding a mac address with a certain IP address, wherein the IP address is a fixed certain intranet IP address;
s204, setting a virtual server and a dmz host, and exposing a personal computer of the host to an external network;
and S205, mapping the port and the personal computer, and opening the corresponding port according to different needs of the individual.
7. The method for connecting a network adapter to a server of a high performance computing cluster of claim 6, wherein: the port is arranged for realizing mapping connection with the network adapter, the second handshake is used for negotiating an encryption algorithm and an encryption key of communication, so that the IP address of the server is paired, and data interaction and access information transmission are performed through the IP address of the server.
8. A method of connecting a network adapter to a server of a high performance computing cluster in accordance with claim 1, wherein: the network adapter includes channel coding, channel decoding, channel bandwidth and channel monitoring when transmitting and receiving data information, the channel coding and the channel decoding encode and decode the data information to realize output and input transmission of data, the channel capacity is expressed as the bit number of binary bits transmitted in unit time, the channel bandwidth is the lower limit frequency and the upper limit frequency of the signal allowed to pass through the channel, the calculation formula of the channel bandwidth is as follows: w=f2-f 1, where f1 is the lowest frequency that the channel can pass and f2 is the highest frequency that the channel can pass.
9. A method of connecting a network adapter to a server of a high performance computing cluster in accordance with claim 1, wherein: the network adapter detects the frame rate through frame rate detection when receiving and transmitting data information, the frame rate detection is used for detecting the transmitted data information, the counter counts the number of rising edges and falling edges of V in 1s after counting 1s, the counter adopts clock detection, the frame rate detection further comprises a comparator, the comparator is used for judging the value of the frame rate, and when the value of the frame rate compared by the comparator is lower, the communication mode is regulated through the mode converter.
10. A method of connecting a network adapter to a server of a high performance computing cluster in accordance with claim 1, wherein: the network adapter comprises a data acquisition circuit for receiving data information, a data conversion circuit for converting the data information, a data gain circuit for amplifying the data information and a data filter circuit for removing impurities from the data information;
the data filtering circuit adopts second-order IIR low-pass filtering or fifth-order FIR low-pass filtering;
the calculation formula of the second-order IIR low-pass filtering is as follows:
y (n) is output data, x n For input data, a and b are coefficients of the filter;
the calculation formula of the five-order FIR low-pass filtering is as follows:
x (n) for inputting signals, k (k) For FIR filter coefficients, y (n) is the filtered signal; n represents the number of taps of the FIR filter, and the filter order is N-1.
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