CN108121426B - Chip voltage adjusting method, device and system - Google Patents
Chip voltage adjusting method, device and system Download PDFInfo
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- CN108121426B CN108121426B CN201611082598.9A CN201611082598A CN108121426B CN 108121426 B CN108121426 B CN 108121426B CN 201611082598 A CN201611082598 A CN 201611082598A CN 108121426 B CN108121426 B CN 108121426B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage
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Abstract
The embodiment of the invention provides a chip voltage adjusting method, a device and a system, which are applied to a chip voltage adjusting system, wherein the chip voltage adjusting system comprises an information feedback part and a control part, wherein the information feedback part acquires transmission characteristic information of a chip, and the transmission characteristic information comprises the error rate of information transmitted by the chip and/or the resource utilization rate of the chip; when the information feedback part judges that the error rate is greater than the preset error rate or the resource utilization rate is less than the preset resource utilization rate, the information feedback part sends transmission characteristic information to the control part; the control unit determines voltage control information for controlling the output voltage of the variable voltage source of the chip based on the transmission characteristic information, and transmits the voltage control information to the variable voltage source of the chip so that the variable voltage source adjusts the output voltage based on the voltage control information. The problem that the quality of the transmission information of the chip is poor when the load of the chip is high and the problem that the power consumption of the chip is wasted when the load of the chip is low are avoided.
Description
Technical Field
The embodiment of the invention relates to the technical field of chips, in particular to a method, a device and a system for adjusting chip voltage.
Background
At least one chip is arranged in the server, each chip is provided with a corresponding voltage source, and the voltage source provides proper voltage for the chips so that the chips can work normally.
The chip can usually work in a voltage range, the voltage provided for the chip is too large, power consumption is easy to waste, and the quality of the transmitted information of the chip is poor if the voltage provided for the chip is too small. In the prior art, when a chip leaves a factory, in order to ensure that the chip can normally work, a fixed voltage is usually set for the chip according to an empirical value, and the voltage is moderate in magnitude. However, when the chip is in operation, the load on the chip is sometimes large and sometimes small. When the load of the chip is high, the quality of the transmission information of the chip is poor, so that the error rate of the transmission information of the chip is high, and when the load of the chip is low, the power consumption of the chip is wasted.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, and a system for adjusting a chip voltage, which avoid the problem that when a load of a chip is high, quality of transmission information of the chip is poor, and when the load of the chip is low, power consumption of the chip is wasted.
In a first aspect, an embodiment of the present invention provides a chip voltage adjusting method, which is applied to a chip voltage adjusting system, where the chip voltage adjusting system includes an information feedback unit and a control unit, and is configured to adjust a voltage of any one chip in a server, where,
the information feedback part acquires transmission characteristic information of the chip, wherein the transmission characteristic information comprises the error rate of information transmitted by the chip and/or the resource utilization rate of the chip;
when the information feedback part judges that the error rate is greater than a preset error rate or the resource utilization rate is less than a preset resource utilization rate, the information feedback part sends the transmission characteristic information to the control part;
the control unit determines voltage control information for controlling an output voltage of a variable voltage source of the chip based on the transmission characteristic information, and transmits the voltage control information to the variable voltage source of the chip so that the variable voltage source adjusts the output voltage based on the voltage control information, wherein the output voltage of the variable voltage source is the voltage of the chip.
In a second aspect, an embodiment of the present invention provides a chip voltage adjusting apparatus, including an obtaining module, a determining module, a sending module, and a determining module, where,
the acquisition module is used for acquiring transmission characteristic information of a chip, wherein the transmission characteristic information comprises the error rate of information transmitted by the chip and/or the resource utilization rate of the chip;
the judging module is used for judging whether the error rate is greater than a preset error rate or whether the resource utilization rate is less than a preset resource utilization rate;
the transmitting module is used for transmitting the transmission characteristic information to the control part when the judging module judges that the error rate is greater than a preset error rate or the resource utilization rate is less than a preset resource utilization rate;
the determining module is used for determining voltage control information for controlling the output voltage of the variable voltage source of the chip according to the transmission characteristic information;
the sending module is further configured to send the voltage control information to a variable voltage source of the chip, so that the variable voltage source adjusts an output voltage according to the voltage control information.
In a third aspect, an embodiment of the present invention provides a chip voltage adjustment system, including an information feedback unit and a control unit, which are connected to each other, wherein the information feedback unit is connected to a chip, and the control unit is connected to a variable voltage source of the chip,
the information feedback part is used for acquiring transmission characteristic information of a chip, wherein the transmission characteristic information comprises an error rate of information transmitted by the chip and/or a resource utilization rate of the chip, and judging whether the error rate is greater than a preset error rate or whether the resource utilization rate is less than a preset resource utilization rate or not by the information feedback part;
the information feedback part is further used for sending the transmission characteristic information to the control part when the error rate is judged to be greater than a preset error rate or the resource utilization rate is judged to be less than a preset resource utilization rate;
the control part is used for determining voltage control information for controlling the output voltage of the variable voltage source of the chip according to the transmission characteristic information and sending the voltage control information to the variable voltage source of the chip so that the variable voltage source adjusts the output voltage according to the voltage control information.
According to the chip voltage adjusting method, device and system provided by the embodiment of the invention, the chip voltage adjusting system can acquire the transmission characteristic information of the chip through the information feedback part, and the control part determines the voltage control information of the variable voltage source of the control chip according to the transmission characteristic information, so that the variable voltage source of the chip can adjust the output voltage according to the voltage control information. The transmission characteristic information of the chip reflects the actual operation condition of the chip, so that the determined voltage control information is also related to the actual operation condition of the chip, the variable voltage source of the chip can be adjusted according to the actual operation state of the chip, and the problems that the quality of the transmission information of the chip is poor when the load of the chip is high and the power consumption of the chip is wasted when the load of the chip is low are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an application scenario of the chip voltage adjustment method provided by the present invention;
FIG. 2 is a flow chart of a chip voltage regulation method according to an embodiment of the present invention;
fig. 3 is a first schematic flowchart of a method for controlling a variable voltage source according to the present invention;
FIG. 4 is a schematic diagram of a voltage control circuit according to the present invention;
fig. 5 is a schematic flow chart illustrating a second method for controlling a variable voltage source according to the present invention;
FIG. 6 is a first schematic structural diagram of a chip voltage regulator according to the present invention;
fig. 7 is a schematic structural diagram of a chip voltage regulator according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Fig. 1 is a schematic view of an application scenario of the chip voltage adjusting method provided by the present invention, and please refer to fig. 1, which includes a chip adjusting system 101 and a server 102. The chip adjustment system 101 includes a control unit and an information feedback unit. The server 102 includes a plurality of chips (respectively denoted as chip 1-chip N) and variable voltage sources (respectively denoted as variable voltage source 1-variable voltage source N) corresponding to the chips. The information feedback section may acquire transmission characteristic information of each chip and feed back the acquired transmission characteristic information to the control section. The control unit controls the variable-voltage source of each chip so that the output voltage of the variable-voltage source of the chip matches the transmission characteristic information of the chip, based on the transmission characteristic information of each chip. Optionally, when the transmission characteristic information of the chip indicates that the quality of the transmission information of the chip is poor, the control part controls the output voltage of the variable voltage source of the chip to increase so as to improve the quality of the transmission information of the chip. When the transmission characteristic information of the chip indicates that the resource utilization rate of the chip is too low, the control part controls the output voltage of the variable voltage source of the chip to be reduced so as to avoid wasting the power consumption of the chip.
It should be noted that one server corresponds to one chip adjustment system, and the chip adjustment system may adjust the output voltage of the variable voltage source corresponding to any one chip in the server. The chip adjusting system has the same process of adjusting the output voltage of the variable voltage source corresponding to each chip in the server. Hereinafter, a process of the chip adjustment system adjusting the output voltage of the variable voltage source corresponding to any one chip in the server is taken as an example, and the technical solution shown in the present application is described in detail through a specific embodiment. The following specific embodiments may be combined with each other and a description of the same or similar concepts and processes will not be repeated.
Fig. 2 is a flowchart of a chip voltage adjustment method according to an embodiment of the present invention, where the method is applied to a chip voltage adjustment system, please refer to fig. 2, and the method may include:
s201, the information feedback part acquires transmission characteristic information of the chip.
Optionally, the transmission characteristic information includes an error rate of information transmitted by the chip and/or a resource utilization rate of the chip. The error rate may be embodied by an error correction rate and/or a retransmission rate, and specifically, when the error rate is low, the error rate may be embodied by the error correction rate. When the error rate is high, the error rate can be embodied through the retransmission rate, or the error rate can be embodied through the error correction rate and the retransmission rate. Of course, the transmission characteristic information of the chip may include other information, and in the actual application process, the transmission characteristic information of the chip may be set according to actual needs.
In the running process of the chip, the information feedback part can acquire the transmission characteristic information of the chip in real time or periodically. When the information feedback part periodically acquires the transmission characteristic information of the chip, the length of the period can be set according to actual needs. Optionally, the information feedback unit may collect transmission information of the chip, and analyze the collected transmission information to obtain transmission characteristic information of the transmission information of the chip.
S202, when the information feedback part judges that the error rate is greater than the preset error rate or the resource utilization rate is less than the preset resource utilization rate, the information feedback part sends the transmission characteristic information to the control part.
After the information feedback part obtains the transmission characteristic information, the information feedback part judges whether the error rate is greater than a preset error rate or not and whether the resource utilization rate is less than a preset resource utilization rate or not.
If the error rate is judged to be greater than the preset error rate, the current output voltage of the variable voltage source of the chip is smaller, and the quality of transmitted information is poor. If the resource utilization rate is judged to be less than the preset resource utilization rate, the current output voltage of the variable voltage source of the chip is larger, and the waste of power is caused. Therefore, when the error rate is judged to be greater than the preset error rate or the resource utilization rate is judged to be less than the preset resource utilization rate, the output voltage of the variable voltage source needs to be adjusted, and the transmission characteristic information is sent to the control part.
And if the error rate is judged to be less than or equal to the preset error rate and the resource utilization rate is judged to be greater than or equal to the preset resource utilization rate, the output voltage of the variable voltage source of the chip does not need to be adjusted, and the transmission characteristic information is abandoned to be sent to the control part.
It should be noted that, when the error rate of the transmission information of the chip is greater than the preset error rate, the resource utilization rate of the chip is greater than the preset resource utilization rate. And when the resource utilization rate of the chip is less than the preset resource utilization rate, the error rate of the transmission information of the chip is less than the preset error rate.
In the above process, before the information feedback unit sends the transmission characteristic information to the control unit, the transmission characteristic information may be detected to determine whether the transmission characteristic information needs to be sent to the control unit. Therefore, the information feedback part can be prevented from sending unnecessary data to the control part, and the operating efficiency of the chip voltage regulating system is improved.
And S203, the control part determines voltage control information for controlling the output voltage of the variable voltage source of the chip according to the transmission characteristic information, and sends the voltage control information to the variable voltage source of the chip so that the variable voltage source adjusts the output voltage according to the voltage control information.
After the control part receives the transmission characteristic information sent by the information feedback part, the control part determines voltage control information according to the transmission characteristic information, wherein the voltage control information is used for controlling the output voltage of the variable voltage source of the chip. The output voltage of the variable voltage source of the chip is the voltage of the chip, and optionally, the output voltage of the variable voltage source may be 1.1V to 1.3V.
When the transmission characteristic information received by the control part comprises an error rate and a resource utilization rate, if the error rate is greater than a preset error rate, the control part determines voltage control information according to the error rate, and the determined voltage control information is used for indicating a variable voltage source corresponding to the chip to improve the output voltage; if the resource utilization rate is smaller than the preset resource utilization rate, the control part determines voltage control information according to the resource utilization rate, and the determined voltage control information is used for indicating the variable voltage source corresponding to the chip to reduce the output voltage.
After the control part determines that the voltage control information is obtained, the control part sends the voltage control information to a variable voltage source of the chip, and the variable voltage source adjusts the output voltage according to the received voltage control information.
The method shown in the embodiment of fig. 2 is described in detail below by way of specific examples.
Illustratively, in the operation process of the chip 1, the information feedback part acquires the transmission information of the chip 1, and analyzes the transmission information of the chip 1 to obtain the error rate 1 of the transmission information of the chip 1 and the resource utilization rate 1 of the chip 1.
The information feedback part compares the error rate 1 with a preset error rate, and compares the resource utilization rate 1 with a preset resource utilization rate.
If the information feedback part judges that the error rate 1 is smaller than the preset error rate and the resource utilization rate 1 is larger than the preset resource utilization rate, the information feedback part determines that the running state of the chip 1 is normal, the output voltage of the variable voltage source corresponding to the chip 1 does not need to be adjusted, and the chip 1 gives up sending the transmission information to the control part.
If the information feedback part judges that the error rate 1 is greater than the preset error rate and the resource utilization rate 1 is greater than the preset resource utilization rate, the information feedback part determines that the error rate 1 is too high and the resource utilization rate 1 is normal. The information feedback unit transmits an error rate 1 to the control unit, and the control unit determines voltage control information for instructing the variable voltage source of the chip 1 to increase the output voltage based on the error rate 1. The control unit transmits the voltage control information to the variable-voltage source of the chip 1, and the variable-voltage source of the chip 1 increases the output voltage in accordance with the voltage control information.
If the information feedback part judges that the error rate 1 is smaller than the preset error rate and the resource utilization rate 1 is smaller than the preset resource utilization rate, the information feedback part determines that the error rate 1 is normal and the resource utilization rate 1 is too low. The information feedback unit transmits the resource utilization rate 1 to the control unit, and the control unit determines voltage control information for instructing the variable-voltage source of the chip 1 to lower the output voltage, based on the resource utilization rate 1. The control unit transmits the voltage control information to the variable-voltage source of the chip 1, and the variable-voltage source of the chip 1 lowers the output voltage in accordance with the voltage control information.
According to the chip voltage adjusting method provided by the embodiment of the invention, the chip voltage adjusting system can acquire the transmission characteristic information of the chip through the information feedback part, and the control part determines the voltage control information of the variable voltage source of the control chip according to the transmission characteristic information, so that the variable voltage source of the chip adjusts the output voltage according to the voltage control information. The transmission characteristic information of the chip reflects the actual operation condition of the chip, so that the determined voltage control information is also related to the actual operation condition of the chip, the variable voltage source of the chip can be adjusted according to the actual operation state of the chip, and the problems that the quality of the transmission information of the chip is poor when the load of the chip is high and the power consumption of the chip is wasted when the load of the chip is low are avoided.
On the basis of the embodiment shown in fig. 2, the control portion in the chip voltage regulation system may be connected to the variable voltage source of the chip in two possible implementations as follows.
One possible implementation is: the control unit is directly connected to the variable voltage source.
Another possible implementation: the control unit is connected to the variable voltage source through a voltage control circuit. In this possible implementation, there is one voltage control circuit for each variable voltage source.
When the connection mode of the control part and the variable voltage source is different, the process of controlling the variable voltage source by the control part is also different. The following describes in detail the process of controlling the variable voltage source corresponding to each of the above two implementations.
Fig. 3 is a first schematic flowchart of a method for controlling a variable voltage source according to the present invention, referring to fig. 3, the method may include:
s301, the control part acquires the current output voltage currently output by the variable voltage source.
In the embodiment shown in fig. 3, the voltage control information generated by the control section is the target output voltage of the variable voltage source. When the control part needs to determine the target output voltage of the variable voltage source, the control part firstly acquires the current output voltage currently output by the variable voltage source.
S302, the control part judges whether the error rate is larger than a preset error rate and whether the resource utilization rate is smaller than a preset resource utilization rate.
If the control part determines that the error rate is greater than the preset error rate, S303-S504 are executed.
If the control part determines that the resource utilization rate is less than the preset resource utilization rate, S305-S306 are performed.
It should be noted that S301 and S302 may be executed sequentially or in parallel, and the execution order of S301 and S302 is not specifically limited in the embodiment of the present invention.
S303, the control part determines a first voltage regulating quantity according to the error rate, wherein the first voltage regulating quantity is larger than zero.
When the control part determines that the error rate is greater than the preset error rate, the current output voltage of the variable voltage source of the chip is relatively small, so that the quality of the transmission information of the chip is poor. The control part determines the first voltage regulating quantity according to the error rate, and optionally, the higher the error rate is, the larger the first voltage regulating quantity is. Optionally, a corresponding relationship between the error rate and the voltage adjustment amount may be preset, so that the control portion may determine the first voltage adjustment amount corresponding to the error rate according to the error rate and the corresponding relationship.
S304, the control part determines a target output voltage according to the sum of the current output voltage and the first voltage adjustment quantity.
After the control portion determines that the first voltage adjustment amount is obtained, the control portion determines that the target output voltage is: the sum of the present output voltage and the first voltage adjustment.
In S303-S304, when the error rate is greater than the preset error rate, it is determined that the obtained target output voltage is greater than the current output voltage, the output voltage of the variable voltage source of the chip is increased, and the error rate of the output information of the chip can be reduced.
S305, the control part determines a second voltage adjustment quantity according to the resource utilization rate, wherein the second voltage adjustment quantity is larger than zero.
When the control part determines that the resource utilization rate is smaller than the preset resource utilization rate, the current output voltage of the variable voltage source of the chip is larger, and the power consumption of the chip is wasted. The control part determines the first voltage adjustment amount according to the resource utilization rate, and optionally, the smaller the resource utilization rate is, the larger the first voltage adjustment amount is. Optionally, a corresponding relationship between the resource utilization rate and the voltage adjustment amount may be preset, so that the control portion may determine the second voltage adjustment amount corresponding to the resource utilization rate according to the resource utilization rate and the corresponding relationship.
Optionally, when the control portion determines that the resource utilization rate is smaller than the preset resource utilization rate, the output voltage of the variable voltage source of the chip needs to be decreased, and in order to avoid an increase in the error rate of the chip caused by excessively decreasing the output voltage of the variable voltage source, the second voltage adjustment amount may be set to a smaller value, so that the control portion may control the variable voltage source to gradually decrease the output voltage.
S306, the control part determines the difference between the current output voltage and the second voltage regulating quantity as the target output voltage.
After the control portion obtains the second voltage adjustment amount, the control portion determines the target output voltage as: the difference between the present output voltage and the second voltage adjustment.
In S305 to S306, when the resource utilization rate is smaller than the preset resource utilization rate, it is determined that the obtained target output voltage is smaller than the current output voltage, and the power consumption of the chip is reduced on the premise of ensuring the transmission quality of the transmission information of the chip.
In the embodiment shown in fig. 3, the control part is directly connected with the variable voltage source of the chip and directly controls the variable voltage source, so that the circuit design is simpler.
When the control section is connected to the variable voltage source through the voltage control circuit, alternatively, the structure of the voltage control circuit may be as shown in fig. 4.
Fig. 4 is a schematic structural diagram of a voltage control circuit provided in the present invention, please refer to fig. 4, in which the voltage control circuit includes an adjustable resistor 401, a reference resistor 402 and a comparator 403. One end of the adjustable resistor 401 is connected to a variable voltage source, a control end of the adjustable resistor 402 is connected to the control unit, the other end of the adjustable resistor 402 is connected to one end of the reference resistor 402, the other end of the reference resistor 402 is grounded, one end of the comparator 403 is connected to one end of the reference resistor 402, and the other end of the comparator 403 is connected to the variable voltage source. Optionally, the adjustable resistor 402 may be implemented by a one-out-of-multiple switch and a plurality of resistors connected in parallel.
In the voltage control circuit shown in fig. 4, optionally, the adjustable resistor may be implemented by one multiple-to-one switch and a plurality of resistors connected in parallel, and different resistors are connected by adjusting the multiple-to-one switch. The adjustable resistor and the reference resistor are connected in series, and the sum of the voltages on the adjustable resistor and the reference resistor is equal to the output voltage of the variable voltage source. When the resistance of the adjustable resistance access circuit changes, the voltage on the reference resistance changes. The comparator is configured to ensure that the voltage across the reference resistor is equal to a preset reference voltage, specifically, the comparator is provided with the reference voltage, the comparator can obtain the voltage across the reference resistor and compare the voltage across the reference resistor with the reference voltage, when the voltage across the reference resistor is equal to the reference voltage, the comparator does not send any information to the adjustable voltage source, and when the voltage across the reference resistor is not equal to the reference voltage, the comparator sends an adjustment signal to the adjustable voltage source to adjust the output voltage of the variable voltage source until the voltage across the reference resistor is equal to the reference voltage.
In addition to the embodiment shown in fig. 4, a method for controlling the variable voltage source will be described in detail with the embodiment shown in fig. 5.
Fig. 5 is a second flowchart illustrating a method for controlling a variable voltage source according to the present invention, referring to fig. 5, the method may include:
s501, the control part determines the target output voltage of the variable voltage source according to the transmission characteristic information.
In the embodiment shown in fig. 5, the voltage control information generated by the control section is a target resistance of the adjustable resistance. When the control unit needs to determine the target resistance of the adjustable resistor, the control unit needs to determine the target output voltage of the variable voltage source first. When it needs to be described, the control unit may determine the target output voltage by the method shown in the embodiment of fig. 3, which is not described herein again.
S502, the control part determines a target resistance according to the target output voltage.
After the control unit obtains the target output voltage, the target resistance is determined according to the target output voltage. Optionally, a preset corresponding relationship exists between the target output voltage and the target resistance, and the control portion may determine the target resistance corresponding to the target output voltage according to the preset corresponding relationship.
S503, the control unit sends the target resistance to the voltage control circuit.
And S504, the voltage control circuit adjusts the adjustable resistor according to the target resistor.
After the voltage control resistor receives the target resistance, the resistance of the adjustable resistor is adjusted to the target resistance. Optionally, when the adjustable resistor is implemented by one-out-of-multiple switches and a plurality of resistors arranged in parallel, the voltage control circuit may determine the switch to be closed according to the received target resistor, and access to the target resistor is implemented by closing the corresponding switch.
And S505, the comparator acquires the voltage value of the reference resistor, compares the voltage value of the reference resistor with the reference voltage, and determines an adjusting signal according to the comparison result.
When the resistance value of the adjustable resistor changes, the voltage on the adjustable resistor changes, and the voltage of the reference resistor also changes because the adjustable resistor is connected with the reference resistor in series. When the voltage of the reference resistor changes and the voltage of the reference resistor is not equal to the reference voltage, the comparator compares the voltage of the reference resistor with the reference voltage and generates an adjusting signal according to the comparison result.
S506, the comparator sends an adjusting signal to the variable voltage source to enable the variable voltage source to adjust the output voltage until the voltage of the reference resistor is equal to the reference voltage.
When the voltage of the reference resistor is greater than the reference voltage and the output voltage of the variable voltage source needs to be reduced, the adjustment signal generated by the comparator is used for indicating the variable voltage source to reduce the output voltage, so that the variable voltage source reduces the output voltage, and the voltage of the reference resistor is reduced until the voltage of the reference resistor is equal to the reference voltage. When the voltage of the reference resistor is smaller than the reference voltage and needs to be increased to the output voltage of the variable voltage source, the adjusting signal generated by the comparator is used for indicating the variable voltage source to increase the output voltage so that the variable voltage source increases the output voltage and further the voltage of the reference resistor is increased until the voltage of the reference resistor is equal to the reference voltage.
When the comparator sends the adjustment signal to the variable voltage source, the comparator may send adjustment information to the variable voltage source for multiple times according to the comparison result, so as to gradually adjust the variable voltage source until the voltage of the reference resistor is equal to the reference voltage.
In the embodiment shown in fig. 5, a voltage control circuit is provided between the control section and the variable voltage source, by which voltage control circuit the adjustment of the variable voltage source is realized. In the process of adjusting the variable voltage source through the voltage control circuit, the comparator can gradually adjust the output voltage of the variable voltage source according to the voltage of the reference resistor until the voltage of the reference resistor is equal to the reference voltage, so that unreasonable voltage adjustment of the variable voltage source is avoided, and the variable voltage source is protected.
Fig. 6 is a schematic structural diagram of a chip voltage regulator according to a first embodiment of the present invention, please refer to fig. 6, which includes an obtaining module 11, a determining module 12, a sending module 13, and a determining module 14, wherein,
the obtaining module 11 is configured to obtain transmission characteristic information of a chip, where the transmission characteristic information includes an error rate of information transmitted by the chip and/or a resource utilization rate of the chip.
The determining module 12 is configured to determine whether the error rate is greater than a preset error rate and whether the resource utilization rate is less than a preset resource utilization rate.
The sending module 13 is configured to send the transmission characteristic information to the control unit when the determining module 12 determines that the error rate is greater than a preset error rate or the resource utilization rate is less than a preset resource utilization rate.
The determining module 14 is configured to determine voltage control information for controlling an output voltage of a variable voltage source of the chip according to the transmission characteristic information;
the sending module 13 is further configured to send the voltage control information to a variable voltage source of the chip, so that the variable voltage source adjusts an output voltage according to the voltage control information.
The chip voltage adjusting device shown in the embodiment of the present invention can implement the technical solutions shown in the above method embodiments, and the implementation principles and beneficial effects thereof are similar, and are not described herein again.
Fig. 7 is a schematic structural diagram of a chip voltage regulator according to a second embodiment of the present invention, and referring to fig. 7, on the basis of the embodiment shown in fig. 6, the determining module 14 includes a first determining unit 141 and a second determining unit 142, wherein,
the first determining unit 141 is configured to determine the voltage control information according to the bit error rate when the control unit determines that the bit error rate is greater than the preset bit error rate;
the second determining unit 142 is configured to determine the voltage control information according to the resource utilization rate when the control unit determines that the resource utilization rate is smaller than the preset resource utilization rate.
In another possible implementation manner, the first determining unit 141 is specifically configured to:
the control part acquires the current output voltage currently output by the variable voltage source;
the control part determines a first voltage regulating quantity according to the error rate, wherein the first voltage regulating quantity is larger than zero;
the control portion determines the target output voltage from a sum of the current output voltage and the first voltage adjustment amount.
In another possible implementation manner, the second determining unit 142 is specifically configured to:
the control part acquires the current output voltage currently output by the variable voltage source;
the control part determines a second voltage regulating quantity according to the resource utilization rate, wherein the second voltage regulating quantity is larger than zero;
the control portion determines a difference between the present output voltage and the second voltage adjustment amount as the target output voltage.
In another possible implementation, the sending module 13 is further configured to:
sending the voltage control information to a voltage control circuit of the chip, wherein the voltage control circuit comprises an adjustable resistor, a reference resistor and a comparator, so that the voltage control circuit adjusts the adjustable resistor according to the voltage control information, the voltage of the reference resistor is not equal to the reference voltage, and the comparator sends an adjusting signal to the variable voltage source according to the voltage of the reference resistor and the reference voltage, so that the variable voltage source adjusts the output voltage until the voltage of the reference resistor is equal to the reference voltage;
one end of the adjustable resistor is connected with the variable voltage source, the other end of the adjustable resistor is connected with one end of the reference resistor, the other end of the reference resistor is grounded, one end of the comparator is connected with one end of the reference resistor, and the other end of the comparator is connected with the variable voltage source.
In another possible implementation, the sending module 13 is specifically configured to:
determining a target output voltage of the variable voltage source according to the transmission characteristic information;
determining a target resistance according to the target output voltage;
sending the target resistance to the voltage control circuit.
The chip voltage adjusting device shown in the embodiment of the present invention can implement the technical solutions shown in the above method embodiments, and the implementation principles and beneficial effects thereof are similar, and are not described herein again.
The embodiment of the invention also provides a chip voltage regulating system, which comprises an information feedback part and a control part which are connected with each other, wherein the information feedback part is connected with the chip, the control part is connected with the variable voltage source of the chip, wherein,
the information feedback part is used for acquiring transmission characteristic information of a chip, wherein the transmission characteristic information comprises an error rate of information transmitted by the chip and/or a resource utilization rate of the chip, and judging whether the error rate is greater than a preset error rate or whether the resource utilization rate is less than a preset resource utilization rate or not by the information feedback part;
the information feedback part is further used for sending the transmission characteristic information to the control part when the error rate is judged to be greater than a preset error rate or the resource utilization rate is judged to be less than a preset resource utilization rate;
the control part is used for determining voltage control information for controlling the output voltage of the variable voltage source of the chip according to the transmission characteristic information and sending the voltage control information to the variable voltage source of the chip so that the variable voltage source adjusts the output voltage according to the voltage control information.
It should be noted that the chip voltage regulation system shown in the embodiment of the present invention may be shown as 101 in fig. 1, and is not described herein again.
In a possible implementation manner, the system further includes a voltage control circuit, wherein the voltage control circuit includes an adjustable resistor, a reference resistor, and a comparator, a control end of the adjustable resistor is connected to the control unit, one end of the adjustable resistor is connected to the variable voltage source, the other end of the adjustable resistor is connected to one end of the reference resistor, the other end of the reference resistor is grounded, one end of the comparator is connected to one end of the reference resistor, and the other end of the comparator is connected to the variable voltage source.
It should be noted that, the structure of the voltage control circuit in the embodiment of the present invention may be as shown in fig. 4, and details are not repeated here.
The chip voltage regulating system shown in the embodiment of the present invention can implement the technical solutions shown in the above method embodiments, and the implementation principles and beneficial effects thereof are similar, and are not described herein again.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the 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.
Claims (10)
1. A chip voltage adjusting method is characterized by being applied to a chip voltage adjusting system, wherein the chip voltage adjusting system comprises an information feedback part and a control part, the chip voltage adjusting system is used for adjusting the voltage of at least one chip in a server, the chip voltage adjusting system further comprises a voltage control circuit, the voltage control circuit comprises an adjustable resistor, a reference resistor and a comparator, the control end of the adjustable resistor is connected with the control part, one end of the adjustable resistor is connected with a variable voltage source, the other end of the adjustable resistor is connected with one end of the reference resistor, the other end of the reference resistor is grounded, one end of the comparator is connected with one end of the reference resistor, and the other end of the comparator is connected with the variable voltage source;
the information feedback part acquires transmission characteristic information of the at least one chip, wherein the transmission characteristic information comprises the error rate of information transmitted by the at least one chip and/or the resource utilization rate of the at least one chip;
when the information feedback part judges that the error rate is greater than a preset error rate or the resource utilization rate is less than a preset resource utilization rate, the information feedback part sends the transmission characteristic information to the control part;
the control part respectively determines voltage control information for controlling the output voltage of the variable voltage source of the at least one chip according to the transmission characteristic information, and sends the corresponding voltage control information to the variable voltage source of the at least one chip, so that each variable voltage source adjusts the output voltage according to the voltage control information, and the output voltage of the variable voltage source is the voltage of the chip.
2. The method according to claim 1, wherein the control section determines voltage control information for controlling the output voltage of the variable voltage source based on the transmission characteristic information, including:
if the control part determines that the error rate is larger than the preset error rate, the control part determines the voltage control information according to the error rate;
if the control part determines that the resource utilization rate is smaller than the preset resource utilization rate, the control part determines the voltage control information according to the resource utilization rate.
3. The method of claim 2, wherein the voltage control information is a target output voltage of the variable voltage source; the control unit determines the voltage control information according to the error rate, and includes:
the control part acquires the current output voltage currently output by the variable voltage source;
the control part determines a first voltage regulating quantity according to the error rate, wherein the first voltage regulating quantity is larger than zero;
the control portion determines the target output voltage from a sum of the current output voltage and the first voltage adjustment amount.
4. The method of claim 2, wherein the voltage control information is a target output voltage of the variable voltage source; the control unit determines the voltage control information according to the resource utilization rate, and includes:
the control part acquires the current output voltage currently output by the variable voltage source;
the control part determines a second voltage regulating quantity according to the resource utilization rate, wherein the second voltage regulating quantity is larger than zero;
the control portion determines a difference between the present output voltage and the second voltage adjustment amount as the target output voltage.
5. The method according to claim 1 or 2, wherein the control section transmits the voltage control information to the variable voltage source, including:
the control section transmits the voltage control information to the voltage control circuit;
the voltage control circuit adjusts the adjustable resistor according to the voltage control information so that the voltage of the reference resistor is not equal to the reference voltage, and the comparator sends an adjusting signal to the variable voltage source according to the voltage of the reference resistor and the reference voltage so that the variable voltage source adjusts the output voltage until the voltage of the reference resistor is equal to the reference voltage.
6. The method of claim 5, wherein the voltage control information is a target resistance of the adjustable resistance; the control unit transmits the voltage control information to the voltage control circuit, and includes:
the control part determines a target output voltage of the variable voltage source according to the transmission characteristic information;
the control part determines a target resistance according to the target output voltage;
the control unit transmits the target resistance to the voltage control circuit.
7. A chip voltage adjusting device is characterized by comprising an acquisition module, a judgment module, a sending module and a determination module, and further comprising a voltage control circuit, wherein the voltage control circuit comprises an adjustable resistor, a reference resistor and a comparator, the control end of the adjustable resistor is connected with a control part, one end of the adjustable resistor is connected with a variable voltage source, the other end of the adjustable resistor is connected with one end of the reference resistor, the other end of the reference resistor is grounded, one end of the comparator is connected with one end of the reference resistor, and the other end of the comparator is connected with the variable voltage source,
the acquisition module is used for acquiring transmission characteristic information of a chip, wherein the transmission characteristic information comprises the error rate of information transmitted by the chip and/or the resource utilization rate of the chip;
the judging module is used for judging whether the error rate is greater than a preset error rate and whether the resource utilization rate is less than a preset resource utilization rate;
the transmitting module is used for transmitting the transmission characteristic information to the control part when the judging module judges that the error rate is greater than a preset error rate or the resource utilization rate is less than a preset resource utilization rate;
the determining module is used for determining voltage control information for controlling the output voltage of the variable voltage source of the chip according to the transmission characteristic information;
the sending module is further configured to send the voltage control information to a variable voltage source of the chip, so that the variable voltage source adjusts an output voltage according to the voltage control information.
8. The apparatus of claim 7, wherein the determination module comprises a first determination unit and a second determination unit, wherein,
the first determining unit is configured to determine the voltage control information according to the error rate when the control unit determines that the error rate is greater than the preset error rate;
the second determining unit is configured to determine the voltage control information according to the resource utilization rate when the control unit determines that the resource utilization rate is smaller than the preset resource utilization rate.
9. The apparatus of claim 7, wherein the sending module is further configured to:
and sending the voltage control information to a voltage control circuit of the chip, so that the voltage control circuit adjusts the adjustable resistor according to the voltage control information, so that the voltage of the reference resistor is not equal to the reference voltage, and the comparator sends an adjustment signal to the variable voltage source according to the voltage of the reference resistor and the reference voltage, so that the variable voltage source adjusts the output voltage until the voltage of the reference resistor is equal to the reference voltage.
10. A chip voltage regulating system is characterized by comprising an information feedback part and a control part which are connected with each other, wherein the information feedback part is connected with a chip, the control part is connected with a variable voltage source of the chip, the system also comprises a voltage control circuit, the voltage control circuit comprises an adjustable resistor, a reference resistor and a comparator, the control end of the adjustable resistor is connected with the control part, one end of the adjustable resistor is connected with the variable voltage source, the other end of the adjustable resistor is connected with one end of the reference resistor, the other end of the reference resistor is grounded, one end of the comparator is connected with one end of the reference resistor, and the other end of the comparator is connected with the variable voltage source;
the information feedback part is used for acquiring transmission characteristic information of a chip, wherein the transmission characteristic information comprises an error rate of information transmitted by the chip and/or a resource utilization rate of the chip, and judging whether the error rate is greater than a preset error rate or whether the resource utilization rate is less than a preset resource utilization rate or not by the information feedback part;
the information feedback part is further used for sending the transmission characteristic information to the control part when the error rate is judged to be greater than a preset error rate or the resource utilization rate is judged to be less than a preset resource utilization rate;
the control part is used for determining voltage control information for controlling the output voltage of the variable voltage source of the chip according to the transmission characteristic information and sending the voltage control information to the variable voltage source of the chip so that the variable voltage source adjusts the output voltage according to the voltage control information.
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