WO2004081774A2 - Dispositif de commande de la puissance consommee d'un systeme de traitement de donnees - Google Patents

Dispositif de commande de la puissance consommee d'un systeme de traitement de donnees Download PDF

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Publication number
WO2004081774A2
WO2004081774A2 PCT/DE2004/000481 DE2004000481W WO2004081774A2 WO 2004081774 A2 WO2004081774 A2 WO 2004081774A2 DE 2004000481 W DE2004000481 W DE 2004000481W WO 2004081774 A2 WO2004081774 A2 WO 2004081774A2
Authority
WO
WIPO (PCT)
Prior art keywords
power consumption
arrangement according
power
data processing
processing system
Prior art date
Application number
PCT/DE2004/000481
Other languages
German (de)
English (en)
Other versions
WO2004081774A3 (fr
Inventor
Dieter Baumann
Willi Sterzik
Original Assignee
Fujitsu Siemens Computers Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Siemens Computers Gmbh filed Critical Fujitsu Siemens Computers Gmbh
Publication of WO2004081774A2 publication Critical patent/WO2004081774A2/fr
Publication of WO2004081774A3 publication Critical patent/WO2004081774A3/fr

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Classifications

    • 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
    • G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • 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
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G06F1/206—Cooling means comprising thermal management
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Definitions

  • the invention relates to an arrangement and a method in a data processing system for reducing the power consumption.
  • Modern data processing systems can be used today for a variety of applications.
  • the applications range from simple use as a writing tool to use for solving computing-intensive problems and multimedia entertainment purposes in the home.
  • the computer may need additional software or hardware components.
  • the computer systems Due to the high flexibility of today's computer systems, it is possible to add various components to a basic device. Existing software or hardware components can also be exchanged without problems, for example for additional modernization.
  • the computer systems have a motherboard that has several interfaces to the individual components. These can be, for example, the processor, main memory modules or other slots, for example for multimedia expansion cards, usually called PCI slots.
  • Mass storage devices such as hard drives or CD-ROMs.
  • Software components and programs use the existing hardware components in different intensities, from a simple word processing program to computationally intensive compression and coding of video formats.
  • a selection of such components can be found in relevant computer specialist magazines, such as CT, Magazin für Computertechnik, 04/00, pages 352 to 419.
  • a power supply is provided to ensure the function of the components or the computer.
  • this supplies the motherboard with the processor and the main memory chip on it, but on the other hand also peripheral components, such as hard disk drives, which contain no power supply via the motherboard integrated components rapidly. Due to the high flexibility that today's computer systems provide, it is therefore necessary to dimension the power supply in such a way that a safe operating state is ensured when adding a new component or replacing an old one. Power supplies that are not sufficiently large therefore lead to an unsafe operation - condition, system crashes or an uncontrolled shutdown of the computer system.
  • a measuring and evaluation device is provided in a data processing system with several power-consuming software and / or hardware components, as well as a power supply device, which is connected to the power supply device for measuring the power consumption of the components of the data processing system.
  • the measuring and evaluation device determines the power consumption of all components and compares this with a limit value. If the limit is exceeded, a signal for power reduction is generated. As a result, the power supply device can be made smaller and thus more cost-effective.
  • the measuring device for measuring the power consumption can advantageously be part of the power supply device.
  • the evaluation device then evaluates an analog signal coming from the power supply device.
  • the signal indicating the power consumption can be designed as a digital signal.
  • the measuring device makes sense for the measuring device to determine the power consumption of the supply lines using the different output voltages of the supply device. This advantageously enables more precise data on power consumption to be obtained.
  • a measurement of the power consumption can be carried out continuously or at periodic intervals.
  • the evaluation device is connected to the processor unit of the data processing system and further components. It is particularly advantageous if the processor unit and the components have a plurality of switchable operating modes with different power consumption and the components can be reduced in power by the evaluation device. Age- natively, individual components that are not required can also be switched off completely.
  • the evaluation device can have an upper and a lower limit value of the power consumption, the evaluation device generating a signal for power reduction when the upper limit value is exceeded and a signal for canceling the power reduction when the value falls below the lower limit value and sends it to the components.
  • the evaluation device is connected to a display device for displaying the current power consumption to the user.
  • This display device is designed as a hardware component or as a software component.
  • the evaluation device is connected to a software component, with the power consumption being reduced by sending a signal from the software component to a component of the data processing system capable of reducing the power.
  • the measured power consumption can also be evaluated completely by software. This can also advantageously be used to partially switch off other software components in order to reduce the overall performance.
  • a component can be reduced in power by successively switching off individual areas of the component that are not required. Alternatively, the entire component can be switched off.
  • each component capable of reducing power. If the limit of the power consumption is exceeded, this priority is used to reduce the power of the components. leads.
  • the priority of each component can be changed by a user. Alternatively, it is possible to create a list with all components.
  • Another advantageous embodiment is the provision of a temperature measuring device which is connected to the evaluation device.
  • the temperature measuring device can be part of the power supply device.
  • the limit value of the power consumption can thus advantageously be linked to a temperature measured value in the evaluation device.
  • Figure 1 shows a first embodiment of the invention
  • Figure 2 shows a second embodiment of the invention
  • Figure 3 shows a power supply device with integrated
  • Figure 4 shows a device for converting the measurement signals into a signal
  • Figure 5 shows a device for converting the analog measurement signals into a digital signal
  • FIG. 6 shows an exemplary embodiment of a method for reducing an output.
  • the arrangement of the data processing system in FIG. 1 consists of a power supply device 1, which converts an alternating current AC into a direct current DC.
  • the power supply device 1 has an output 2, which consists of a supply line.
  • the supply line 2 supplies the components 3 to 7 with the agile energy.
  • the supply line 2 is connected to the components and has output voltages (not shown) which can be different or the same.
  • a measuring device (not shown) is integrated within the power supply device 1, which determines the power consumption of the power supply device of the supply line 2 and transmits the measured value to an evaluation circuit 4 via a signal line 8.
  • the evaluation device 4 evaluates a signal coming from the power supply device 1, which represents the current power consumption.
  • the evaluation device 4 is connected to a display device 7. Furthermore, the device 4 has an interface 10 to a software component 6, to which the evaluation device send data and from which it can receive instructions. The evaluation device 4 sends a signal for reducing the power to the components 3 and 5 via the connections 9.
  • the power supply device contains a primary side 11 and a second side 12, which are coupled via the two inductors 13 and 14.
  • the primary side has a transistor T and a control element S for controlling the primary current.
  • the secondary side 12 contains a rectifier circuit from the diodes D for transforming the AC voltage into a DC voltage.
  • the voltages U ] , U2 and U3 can be tapped at the output of the secondary side 12.
  • each output line is connected to a capacitor C, the other side of which is connected to the line P.
  • Every exit line device U contains a resistor R] _, R2 or R3, which are designed as protective resistors against overload.
  • a measuring device 15 determines the voltage drop across the resistors R- ⁇ , R2 / or R3 and uses this to calculate the power consumption of the corresponding output line. This power consumption is transmitted to the evaluation device 4. As an alternative to a power measurement on the output lines, the measuring device can measure the power consumption of the data processing system via the voltage drop of the resistor R4. It is also possible to convert the voltage drop into a power consumption in the evaluation circuit 4.
  • the signals in the arrangements G are weighted and combined to form an overall signal P.
  • the signals PJVJ1 /? M2 ' unc ⁇ P M3 as voltage signals and the arrangements G as resistors of various sizes. This is advantageous if the evaluation device 4 has only one input for the signal signaling power consumption.
  • the PMI signals "? M2 un ⁇ 3- P M3 can be fed into the position shown in Figure 5 assembly 16, of the signals into a digital output signal of the input. These are fed via a digital bus I 2 C to the digital input of the evaluation circuit.
  • a digital bus I 2 C to the digital input of the evaluation circuit.
  • an alternative transmission method of the measured signal is also conceivable, in particular via another bus.
  • FIG. 2 An advantageous development of the invention is shown in FIG. 2.
  • the motherboard 17 contains a plurality of main memory modules 18, three slots 19 and two slots 20.
  • the motherboard has a plug connection 21 which is connected to the power supply device 1 via the supply line 2.
  • the plug connection 21 supplies all components on the motherboard 17 with current of different voltages.
  • Other hardware components which are connected to the motherboard 17 via the slots 19 are likewise supplied with current via the plug connection 21. These are, for example, multimedia expansion cards.
  • the connections 20 lead to peripheral mass memories which have their own supply line 2 a with the power supply device 1.
  • the power supply device 1 contains a temperature measuring device 22 for measuring the operating temperature of the power supply device. A corresponding signal is sent via the
  • Signal line 8 sent to the evaluation device 4.
  • the evaluation device 4 is also connected to a sensor device 23, which supplies further data to the evaluation device. This makes it possible to link a limit value of the power consumption with the measured temperature of the power supply device or the motherboard in order to prevent thermal damage.
  • the simplest embodiment of the temperature measuring device can be a PTC or an NTC resistor. The about the
  • Resistance dropping voltage can then be used as a measure of the temperature change.
  • a temperature sensor is a transistor and the changing base-emitter voltage of the transistor. Thermocouples or even quartz crystals with a temperature-dependent resonance frequency can also be used.
  • a changing voltage is particularly suitable as a temperature measurement signal.
  • the temperature measurement signal represents the absolute temperature or a change in temperature.
  • the temperature determined by the temperature sensor 22 or 23 is a measure of the power consumption of the component thermally coupled to the sensor. In this way, the amount of heat emitted and thus the power consumption or the change in the power consumption can be determined via the measured temperature or temperature change.
  • the temperature sensor 22 can be mounted directly on the largest heat source of the power supply device 1.
  • the amount of heat given off by the power supply device is the power loss and is dependent on the total power consumed. It is therefore a measure of the power consumed in the computer system.
  • the temperature sensor can also be installed in the air flow of the air transported outside by the power supply device. If the fan of the power supply device is responsible for transporting heat out of the computer system, the amount of heat transported outside contains information about the total power loss and thus about the power consumed. However, the larger time constant has to be taken into account here until a change in output becomes noticeable in a change in temperature.
  • the temperature measurement signals of the individual temperature sensors are compared in the evaluation device 4 with different limit values. Depending on whether and how many limit values have been exceeded, the evaluation device takes suitable measures to reduce the output.
  • the limit values can be linked to the appropriate measures to reduce the power, so that the corresponding measures are carried out each time a limit value is exceeded. For example, the power consumption of mass storage devices such as
  • Hard drives or CD / DVD drives can be reduced by reducing the speed of rotation. Furthermore, the clock frequency of the main processor can be reduced, which usually reduces the power consumption significantly. If these measures are not yet sufficient, interfaces that are not used and their control processors can be switched off by the control device, for example. The serial, but also a USB or fire wire interface are suitable for this. At the same time, a corresponding message is sent to the user.
  • control device not only makes a decision based on the temperature signal or signals, but also evaluates further parameters.
  • a reduction in CPU performance should, for example, also depend on the computing power currently required. If fast data access is required, the rotation speed of the mass storage should not be reduced.
  • the other parameters are application- and user-specific and can be passed on to the control device by the operating system or the user.
  • the evaluation device 4 can use further parameters for decision-making. For example, the evaluation device can assign a priority to each component and, in the event of a power reduction, send signals to the components which have the lowest priority. sen. A corresponding signal takes place via the signal line 9, which links all components of the motherboard to one another. Alternatively, this can also be done via a separate data line to each component.
  • the software interface 10 in FIG. 1 allows data to be sent to a software component or instructions to be received from the latter. It is therefore possible for the evaluation circuit to perform a power reduction by switching off software components that are not required. A user can also access the evaluation device through this interface.
  • the evaluation device 4 can be designed as a software component that evaluates measurement data from a measurement device. A user can also receive extensive configuration options, for example for a limit value for the power or the temperature.
  • the evaluation device 4 contains a signal of power consumption which is above a limit value, it sends a signal for power reduction to the components 3 and 5 via the signal lines 9 shown in FIG. 1. In addition, it shows the power consumed via the display device 7 to a user. The signal for power reduction continues until the power falls below the limit again.
  • each component capable of reducing power is assigned a priority and stored in list 24.
  • the list 25 contains all components for which a power reduction has already been carried out.
  • the power reduction can be achieved by switching to another operating mode or by completely deactivating the component.
  • an upper and a lower limit for the power consumption were determined and assigned to decision nodes 26 and 27. If the power consumption in node 26 is greater than the limit value, it is checked in decision node 28 whether components that can be switched off are present in list 24. If this is the case, a component that can be switched off is selected from the list 24 and this is switched off 29.
  • the selection of such a component can be based on further specifications, such as a given priority or user specifications, for several possible components.
  • the deactivated component is added to list 25. Then the power consumption is determined again.
  • the decision node 30 searches for a component in the list 24 that can be reduced in power. If no further component is present, in this exemplary embodiment the user is informed of a possible overload of the power supply device 36. Otherwise, a component that can be reduced in power is taken from the list 24
  • the total power consumption of the data processing system changes, for example as a result of the termination of a very computing-intensive process, the total power consumption can drop below the lower limit. If a check in decision node 27 yields a positive result, then it is checked in decision node 32 whether components that have been switched off are present. If this is the case, a component that is switched off is selected from the list 25, switched on and added to the list 24 33. If there are no switched off components, the decision node 34 checked whether the list 25 contains reduced components in performance. If necessary, these are removed from the list, the power consumption of these components is increased and fed to the list 24. Here too, an order can be defined based on further parameters. This process is repeated until the power rises above the lower limit.
  • Power consumption can be measured and evaluated at periodic intervals or continuously.
  • the method steps specified in this exemplary embodiment in particular the sequence of individual steps, can be interchanged without changing the result of such a method.
  • Other options than the lists described can also be found for identifying components that are switched off or have a reduced output.
  • One possibility would be the "First IN, Last OUT" principle, in which the components are switched on again in the reverse order.
  • the main idea of the method based on a performance measurement, is that a statement about a performance reduction remains.
  • the essential idea of the invention is therefore to provide an arrangement in a data processing system that reduces the performance of individual software or hardware components. can decorate, thus reducing the total power consumption. It is irrelevant whether such an arrangement is designed as a software or hardware arrangement. At least one temperature or a change in the temperature of the computer system or individual components is used for the decision-making basis.
  • the examples listed here can be combined as desired, the inventive idea is not limited to a temperature sensor at one point in the computer system.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Human Computer Interaction (AREA)
  • Power Sources (AREA)

Abstract

L'invention concerne la configuration d'un système de traitement de données comprenant une unité processeur (3), d'autres composants logiciels et/ou matériels (5) servant au fonctionnement du système de traitement de données (5) et un dispositif d'alimentation en courant (1). Ce dispositif d'alimentation en courant (1) présente au moins une ligne d'alimentation (2) ayant au moins une tension de sortie destinée à l'alimentation de l'unité processeur (3) et des composants matériels (5). Le système de traitement de données présente un dispositif de mesure et d'évaluation (4) qui permet de déterminer et d'évaluer la puissance consommée actuelle du système de traitement de données et est relié au dispositif d'alimentation de courant (1).
PCT/DE2004/000481 2003-03-12 2004-03-11 Dispositif de commande de la puissance consommee d'un systeme de traitement de donnees WO2004081774A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10310780A DE10310780B4 (de) 2003-03-12 2003-03-12 Steuerung der Leistungsaufnahme eines Datenverarbeitungssystems
DE10310780.0 2003-03-12

Publications (2)

Publication Number Publication Date
WO2004081774A2 true WO2004081774A2 (fr) 2004-09-23
WO2004081774A3 WO2004081774A3 (fr) 2004-11-11

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PCT/DE2004/000481 WO2004081774A2 (fr) 2003-03-12 2004-03-11 Dispositif de commande de la puissance consommee d'un systeme de traitement de donnees

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DE (1) DE10310780B4 (fr)
TW (1) TW200419337A (fr)
WO (1) WO2004081774A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5964879A (en) * 1994-12-22 1999-10-12 Intel Corporation Method and system for dynamically power budgeting with device specific characterization of power consumption using device driver programs
US6182232B1 (en) * 1999-01-29 2001-01-30 Micron Electronics, Inc. Power and thermal management based on a power supply output
WO2001035200A1 (fr) * 1999-11-09 2001-05-17 Advanced Micro Devices, Inc. Reglage dynamique des parametres de fonctionnement d'un processeur en fonction de son environnement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1271260B (it) * 1994-12-13 1997-05-27 Bticino Spa Impianto elettrico con controllo della domanda di potenza
US6367023B2 (en) * 1998-12-23 2002-04-02 Intel Corporation Method and apparatus of measuring current, voltage, or duty cycle of a power supply to manage power consumption in a computer system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5964879A (en) * 1994-12-22 1999-10-12 Intel Corporation Method and system for dynamically power budgeting with device specific characterization of power consumption using device driver programs
US6182232B1 (en) * 1999-01-29 2001-01-30 Micron Electronics, Inc. Power and thermal management based on a power supply output
WO2001035200A1 (fr) * 1999-11-09 2001-05-17 Advanced Micro Devices, Inc. Reglage dynamique des parametres de fonctionnement d'un processeur en fonction de son environnement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Advanced Configuration and POwer Interface Secification Rev. 2.0b" 11. Oktober 2002 (2002-10-11), COMPAQ, INTEL, MICROSOFT, PHOENIX, TOSHIBA , XP002294608 Seite 42 - Seite 44 Seite 21 - Seite 37 Seite 87 - Seite 90 Seite 277 - Seite 292 Seite 431 - Seite 449 *

Also Published As

Publication number Publication date
DE10310780B4 (de) 2005-12-08
WO2004081774A3 (fr) 2004-11-11
TW200419337A (en) 2004-10-01
DE10310780A1 (de) 2004-09-30

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