CN112462901A - Server heat dissipation method and device, electronic equipment and storage medium - Google Patents
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Abstract
The invention provides a server heat dissipation method, a server heat dissipation device, electronic equipment and a storage medium, belongs to the technical field of servers, and solves the technical problems that heat dissipation is not timely and heat dissipation effect is not obvious in the prior art. The method comprises the following steps: the BMC obtains the measured current of the component; calculating a PWM regulation value of the fan according to a PWM regulation formula; generating a control command according to the PWM regulation value; sending a control command to a fan connector corresponding to the component; the fan connector adjusts the fan speed according to the control command.
Description
Technical Field
The present invention relates to the technical field of servers, and in particular, to a method and an apparatus for heat dissipation of a server, an electronic device, and a storage medium.
Background
With the continuous development of the internet AI artificial intelligence technology, the data volume is increased, and various computing models are generated, the traditional server architecture is difficult to adapt to the changing data processing and data storage requirements.
Increasing demand is constantly catalyzing, deriving various forms of server forms that fuse heterogeneous computing. The new heterogeneous computing server is improved to different degrees: on one hand, under the condition of complying with the size requirement of a standard rack, the height of a server case is continuously increased, and a larger space is designed in the server case to increase more computing units, heterogeneous acceleration modules, FPGA acceleration network cards, GPU processors and the like; on the other hand, the traditional management node is separated from the special accelerated computing node and the special storage node, and the management node is connected with the special extended computing node and the special storage node in an external system level and backed up.
Along with that, the power consumption of the whole machine is increasingly larger, and the requirement for heat dissipation is increasingly strict, and the current heat dissipation strategy is as follows: and after detecting that the temperature of the key device exceeds a threshold value, the BMC outputs a PWM signal with a high duty ratio to the fan. The regulation and control after the temperature becomes high consumes regulation and control resources and regulation and control effects, and the regulation and control effects are far from good without starting before the temperature rises.
Disclosure of Invention
The invention aims to provide a server heat dissipation method, a server heat dissipation device, electronic equipment and a storage medium, and solves the technical problems of untimely heat dissipation and poor heat dissipation effect in the prior art.
In a first aspect, the server heat dissipation method provided by the present invention includes the following steps:
the BMC obtains the measured current of the component;
calculating a PWM regulation value of the fan according to the following PWM regulation formula;
F(x)＝p(0)*xn+p(1)xn-1+p(2)xn-2+……+p(n)；
f (x) is a PWM regulation value, p (0) … … p (n) is a constant, n is a constant, and x is an actually measured current value of the component;
generating a control command according to the PWM regulation value;
sending a control command to a fan connector corresponding to the component;
the fan connector adjusts the fan speed according to the control command.
Further, before the step of obtaining the measured current of the component by the BMC, the method further includes:
the BMC obtains a standby current of the component and a PWM (pulse-width modulation) actual regulation value of the fan;
and establishing a PWM (pulse-width modulation) adjustment formula according to the preparation current and the PWM regulation value.
Further, the step of calculating a PWM adjustment equation according to the standby current and the actual PWM control value specifically includes:
calculating a PWM adjustment formula according to the following formula;
F(x)＝p(0)*xi n+p(1)xi n-1+p(2)xi n-2+……+p(n)；
f (x) is the actual PWM regulation value, n is the number of times of measuring the preparatory current, xiFor the ith preliminary current value of the component, p (0) … … p (n) is a constant value to be calculated.
Further, the step of obtaining the measured current of the component by the BMC specifically includes:
the BMC obtains voltage values of Hall elements preset in circuits of the CPU and the assemblies;
calculating the actual measurement current value of the component according to the following formula;
V＝0.5Vcc+Ip*s；
v is the measured voltage value of the Hall element, VccThe working voltage of the Hall element is 5V, and s is a constant coefficient 66mV/A, IpIs the measured current value of the component to be calculated.
Further, the step of obtaining the measured current of the component by the BMC further includes:
the CPLD acquires the voltage value of a preset Hall element in the circuit of the CPU and the component;
calculating the actual measurement current value of the component according to the following formula;
V＝0.5Vcc+Ip*s；
v is the measured voltage value of the Hall element, VccThe working voltage of the Hall element is 5V, s is a constant coefficient of 66mV/A, IpThe measured current value of the component needing to be calculated is obtained;
and the CPLD sends the calculated actual measurement current value to the BMC.
In a second aspect, the present invention further provides a server heat dissipation device, applied to a server, including:
the current collection module is used for acquiring the measured current of the component;
the calculation module is used for calculating the PWM regulation value of the fan according to the PWM regulation formula;
the command generation module is used for generating a control command according to the PWM regulation value;
the command sending module is used for sending a control command to the fan connector corresponding to the component;
and the fan connector is used for adjusting the rotating speed of the fan according to the control command.
In a third aspect, the present invention further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program operable on the processor, and the processor implements the steps of the above method when executing the computer program.
Furthermore, the processor comprises a CPU and a BMC, a Hall element is arranged in a circuit of the CPU and the assembly, and an output end of the Hall element is connected to the BMC.
In a fourth aspect, the present invention also provides a computer readable storage medium having stored thereon machine executable instructions which, when invoked and executed by a processor, cause the processor to carry out the method described above.
According to the server heat dissipation method, the current of the component is obtained, the regulation value is calculated according to the current of the component and the preset formula, the regulation value command is sent to the fan connector to control the fan to rotate, the heat dissipation effect of the server component is improved in a mode of improving the heat dissipation efficiency of the fan in advance, the temperature of the component is further reduced, and the influence on the normal work of the component due to untimely heat dissipation is avoided.
Accordingly, the server heat dissipation device, the electronic device and the computer-readable storage medium provided by the embodiment of the invention also have the technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a server heat dissipation method according to an embodiment of the present invention;
fig. 2 is a specific flowchart of a server heat dissipation method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a server heat dissipation device according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprising" and "having," and any variations thereof, as referred to in embodiments of the present invention, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, a server heat dissipation method provided in an embodiment of the present invention includes the following steps:
s11: the BMC obtains the measured current of the component;
s12: calculating a PWM regulation value of the fan according to the following PWM regulation formula;
F(x)＝p(0)*xn+p(1)xn-1+p(2)xn-2+……+p(n)；
f (x) is a PWM regulation value, p (0) … … p (n) is a constant, n is a constant, and x is an actually measured current value of the component;
s13: generating a control command according to the PWM regulation value;
s14: sending a control command to a fan connector corresponding to the component;
s15: the fan connector adjusts the fan speed according to the control command.
According to the server heat dissipation method provided by the embodiment of the invention, the assembly current is obtained, the regulation value is calculated according to the assembly current and the preset formula, and the regulation value command is sent to the fan connector to control the fan to rotate, so that the heat dissipation effect of the server assembly is improved in a mode of improving the heat dissipation efficiency of the fan in advance, the temperature of the assembly is further reduced, and the influence on the normal work of the assembly due to untimely heat dissipation is avoided.
As shown in fig. 2, in a possible embodiment, before the step of obtaining the measured current of the component, the method further includes:
s201: the BMC obtains a standby current of the component and a PWM (pulse-width modulation) actual regulation value of the fan;
s202: and establishing a PWM (pulse-width modulation) adjustment formula according to the preparation current and the PWM regulation value.
The calculation formula of the PWM regulation value is used for fitting the most real linear relation between the working current of the component and the PWM regulation value by acquiring the actual working state of the server, namely the current, the actual PWM regulation value, the temperature and the like of the component for multiple times, and the more the acquisition times are, the more real the fitted curve relation is.
In a possible embodiment, the step of calculating the PWM adjustment equation according to the standby current and the PWM actual regulation value specifically includes:
calculating a PWM adjustment formula according to the following formula;
F(x)＝p(0)*xi n+p(1)xi n-1+p(2)xi n-2+……+p(n)；
f (x) is the actual PWM regulation value, n is the number of times of measuring the preparatory current, xiFor the ith preliminary current value of the component, p (0) … … p (n) is a constant value to be calculated.
And fitting a real relation between the current and the PWM regulation value through the measured preparation current, the PWM actual regulation value and the like, and calculating the PWM regulation value corresponding to the working current of the component according to the equation during subsequent actual work.
As shown in fig. 2, in a possible embodiment, the step of acquiring the measured current of the component by the BMC specifically includes:
s2111: the BMC obtains voltage values of Hall elements preset in circuits of the CPU and the assemblies;
s2112: calculating the actual measurement current value of the component according to the following formula;
V＝0.5Vcc+Ip*s；
v is the measured voltage value of the Hall element, VccThe working voltage of the Hall element is 5V, and s is a constant coefficient 66mV/A, IpIs the measured current value of the component to be calculated.
The BMC cannot directly acquire the working current of the component, so that a Hall element is connected to a circuit of the CPU and the component, and after acquiring the voltage of the Hall element, the BMC calculates the actual measurement current of the current circuit according to a formula, and then can calculate the PWM regulation value according to the current.
As shown in fig. 2, in a possible implementation, the step of the BMC obtaining component measuring the measured current further includes:
s2121: the CPLD acquires the voltage value of a preset Hall element in the circuit of the CPU and the component;
s2122: calculating the actual measurement current value of the component according to the following formula;
V＝0.5Vcc+Ip*s；
v is the measured voltage value of the Hall element, VccThe working voltage of the Hall element is 5V, s is a constant coefficient of 66mV/A, IpThe measured current value of the component needing to be calculated is obtained;
s2123: and the CPLD sends the calculated actual measurement current value to the BMC.
Because the work that BMC is responsible for is more, BMC probably is not in time to the acquirement of electric current, so use CPLD to acquire the electric current of hall element in the server to calculate measured current, with measured current transmission to BMC in, promote the timeliness of data.
The embodiment of the invention provides a server heat dissipation method, which comprises the following specific implementation modes:
the method comprises the steps that Hall elements are connected to lines of each component of a server and a CPU, Hall effect is generated when current passes through the interior of the elements, different Hall voltages are generated, voltage of the Hall elements is sampled by a BMC, and the voltage is converted into current inside the BMC;
V＝0.5Vcc+Ip*s；
v is the measured voltage value of the Hall element, VccThe working voltage of the Hall element is 5V, and s is a constant coefficient 66mV/A, IpIs the measured current value of the component to be calculated.
And recording the temperature of the component and the PWM regulation value of the fan while acquiring the current.
Establishing a PWM regulation value formula according to the measured actual numerical value;
F(x)＝p(0)*xi n+p(1)xi n-1+p(2)xi n-2+……+p(n)；
f (x) is the actual PWM regulation value, n is the number of times of measuring the preparatory current, xiFor the ith preliminary current value of the component, p (0) … … p (n) is a constant value to be calculated.
And fitting a linear relation between the PWM regulation value and the working current of the component through multiple measurement calculations.
Accomplish above-mentioned step, can obtain PWM regulation and control value formula, and write into BMC inside with the formula, when the subassembly work, BMC is through the voltage of gathering the subassembly, and turn into the electric current with voltage, obtain actual measurement electric current back, calculate PWM regulation and control value through PWM regulation and control value formula, and generate control command and send to the fan connector, the fan connector is according to control command control fan rotation, promote the radiating efficiency in advance, promote radiating effect, avoid the subassembly to influence the work of subassembly because of the high temperature.
As shown in fig. 3, an embodiment of the present invention further provides a server heat dissipation apparatus, including:
the current collection module 1 is used for acquiring the measured current of the component;
the calculating module 2 is used for calculating the PWM regulating value of the fan according to the PWM regulating formula;
the command generation module 3 is used for generating a control command according to the PWM regulation value;
the command sending module 4 is used for sending the control command to the fan connector corresponding to the component;
and the fan connector 5 is used for adjusting the rotating speed of the fan according to the control command.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Corresponding to the method, an embodiment of the present invention further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program operable on the processor, and the processor implements the steps of the method when executing the computer program.
In one possible embodiment, the processor comprises a CPU and a BMC, a Hall element is arranged in a circuit of the CPU and the assembly, and an output end of the Hall element is connected to the BMC.
In accordance with the above method, embodiments of the present invention also provide a computer readable storage medium storing machine executable instructions, which when invoked and executed by a processor, cause the processor to perform the steps of the above method.
The apparatus provided by the embodiment of the present invention may be specific hardware on the device, or software or firmware installed on the device, etc. The device provided by the embodiment of the present invention has the same implementation principle and technical effect as the method embodiments, and for the sake of brief description, reference may be made to the corresponding contents in the method embodiments without reference to the device embodiments. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the foregoing systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
For another example, the division of the unit is only one division of logical functions, and there may be other divisions in actual implementation, and for another example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments provided by the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; and the modifications, changes or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A server heat dissipation method is characterized by being applied to a server and comprising the following steps:
the BMC obtains the measured current of the component;
calculating a PWM regulation value of the fan according to the following PWM regulation formula;
F(x)＝p(0)*xn+p(1)xn-1+p(2)xn-2+……+p(n)；
f (x) is a PWM regulation value, p (0) … … p (n) is a constant, n is a constant, and x is an actually measured current value of the component;
generating a control command according to the PWM regulation value;
sending a control command to a fan connector corresponding to the component;
the fan connector adjusts the fan speed according to the control command.
2. The server thermal dissipation method of claim 1, wherein the step of obtaining the measured current of the component by the BMC is preceded by:
the BMC obtains a standby current of the component and a PWM (pulse-width modulation) actual regulation value of the fan;
and establishing a PWM (pulse-width modulation) adjustment formula according to the preparation current and the PWM regulation value.
3. The server heat dissipation method according to claim 2, wherein the step of calculating a PWM adjustment equation according to the preparation current and the PWM actual regulation value specifically includes:
calculating a PWM adjustment formula according to the following formula;
F(x)＝p(0)*xi n+p(1)xi n-1+p(2)xi n-2+……+p(n)；
f (x) is the actual PWM regulation value, n is the number of times of measuring the preparatory current, xiFor the ith preliminary current value of the component, p (0) … … p (n) is a constant value to be calculated.
4. The server heat dissipation method of claim 1, wherein the step of obtaining, by the BMC, the measured current of the component specifically comprises:
the BMC obtains voltage values of Hall elements preset in circuits of the CPU and the assemblies;
calculating the actual measurement current value of the component according to the following formula;
V＝0.5Vcc+Ip*s；
v is the measured voltage value of the Hall element, VccThe working voltage of the Hall element is 5V, and s is a constant coefficient 66mV/A, IpIs the measured current value of the component to be calculated.
5. The server heat dissipation method of claim 1, wherein the step of obtaining, by the BMC, the measured current of the component further comprises:
the CPLD acquires the voltage value of a preset Hall element in the circuit of the CPU and the component;
calculating the actual measurement current value of the component according to the following formula;
V＝0.5Vcc+Ip*s；
v is the measured voltage value of the Hall element, VccThe working voltage of the Hall element is 5V, s is a constant coefficient of 66mV/A, IpThe measured current value of the component needing to be calculated is obtained;
and the CPLD sends the calculated actual measurement current value to the BMC.
6. The utility model provides a server heat abstractor which characterized in that, is applied to in the server, includes:
the current collection module is used for acquiring the measured current of the component;
the calculation module is used for calculating the PWM regulation value of the fan according to the PWM regulation formula;
the command generation module is used for generating a control command according to the PWM regulation value;
the command sending module is used for sending a control command to the fan connector corresponding to the component;
and the fan connector is used for adjusting the rotating speed of the fan according to the control command.
7. An electronic device comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor implements the steps of the method of any of claims 1 to 5 when executing the computer program.
8. The electronic device of claim 8, wherein the processor comprises a CPU and a BMC, a Hall element is arranged in a circuit of the CPU and the assembly, and an output end of the Hall element is connected to the BMC.
9. A computer readable storage medium having stored thereon machine executable instructions which, when invoked and executed by a processor, cause the processor to execute the method of any of claims 1 to 5.
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Application publication date: 20210309 |