EP1214664A2 - Mehrere speicherbusse in einem multiprozessor-system - Google Patents
Mehrere speicherbusse in einem multiprozessor-systemInfo
- Publication number
- EP1214664A2 EP1214664A2 EP00975783A EP00975783A EP1214664A2 EP 1214664 A2 EP1214664 A2 EP 1214664A2 EP 00975783 A EP00975783 A EP 00975783A EP 00975783 A EP00975783 A EP 00975783A EP 1214664 A2 EP1214664 A2 EP 1214664A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- memory
- data
- central
- bus
- working memory
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/76—Architectures of general purpose stored program computers
- G06F15/78—Architectures of general purpose stored program computers comprising a single central processing unit
Definitions
- the present invention relates to a data processing ⁇ device for processing data as described in the preamble of the appended claim 1.
- a computer essentially consists of a central processing unit, the so-called CPU (Central Processing Unit), which is used to process the data. Furthermore, a computer consists of a central memory, input and output devices such as. B. keyboard and screen, and a bus system via which the individual components exchange data with each other. Computer systems that are subject to high demands in terms of processing speed, real-time processing of signals or multitasking often have two or more CPUs.
- CPU Central Processing Unit
- 1 shows a design variant of a computer with several CPU's.
- the data exchange between the individual CPU's la ... ln and the central working memory 3 takes place via a bus 2, the so-called memory bus.
- the input and output devices 4a, 4b have their own bus for data exchange with the central working memory, the so-called I / O bus (input / output bus) 5.
- the data traffic between the central working memory 3 and the input and output devices 4a, 4b is controlled by an I / O controller 6.
- the performance of a computer system can be, through the appropriation of faster, more powerful CPUs, fast ⁇ ren labor saving and improved by increasing the storage capacity.
- a data bus e.g. B. the memory bus in a computer, consists of several such side-by-side lines. With their resistances, capacitors and inductors, these lines act like a low-pass filter at high data transmission rates, i. H. that data from a certain transfer rate can no longer be transferred properly.
- T ASK of the present invention is a ⁇ ten kausvortechnische Since according to the preamble of the appended claim 1 beige ⁇ provide, is made possible in which an increase in the total transmission capacity between the CPU 's and the central memory.
- the advantage of using two memory buses in accordance with the invention in a computer with two CPU's is that the rate of the data to be transferred is reduced with the same memory and CPU performance on the respective memory buses.
- Another advantage is that the individual buses have smaller mechanical dimensions, since fewer components have to be connected to one another via the individual bus.
- the smaller dimensions reduce the interfering influences of the capacitors, inductors and resistors, which means that a higher data transfer rate on the individual buses is possible.
- the present invention is advantageously used in computer systems which have two or more CPUs, in particular when the individual CPUs are accommodated on different modules within a module frame are, where a single memory having large mechanical measurements from ⁇ .
- the inventive division of the memory buses can expand b eliebig. Computer systems with three or more memory buses would thus be conceivable. But this division is only useful when a Zen ⁇ is connected traliser at each memory at least.
- the existing central units are distributed as evenly as possible on the existing memory buses.
- 1 shows a design variant of a computer with several CPU's.
- FIG 2 shows the schematic structure of the data processing device according to the invention.
- FIG. 3 shows a practical application example of the data processing device according to the invention.
- the memory bus 2 used in the prior art was doubled to two memory buses 2a and 2b.
- the transmission capacity is at least doubled. Characterized in that the individual buses 2a and 2b smaller Abmessun ⁇ gene to a single bus 2 with the same number of C PU's ha s b, the transmission capacity of the two buses 2a and 2b, a total of more than doubled.
- the total transmission capacity of the memory bus can thus be expanded as desired when using any number of memory buses, provided the corresponding number of CPU's is ... ln.
- a special device, the so-called memory controller 7, controls the data transmission between the central working memory 3 and the CPU's.
- the addresses of the CPU's and information about them are stored in this memory controller 7 on which bus 2a, 2b the corresponding CPU la ... ln is located.
- the memory controller 7 Since not all CPUs can access the central working memory 3 at the same time, the memory controller 7 also has the task of distributing the access rights of the CPU's la ... ln to the central working memory 3.
- the present invention could be used in the so-called Coordination Processor (CP) from Siemens AG.
- the Coordination Processor is used in telephone exchanges and has the task of controlling the exchange, including setting the switching network.
- the switching matrix in turn, has the task of connecting two participants to one another in a very simplified manner.
- this connection request is written into the central working memory 3 of the coordination processor; the central working memory 3 'serves for redundancy and always has the same content as the central working memory 3.
- One of the processors la ... lh each of which is housed on a module in a module frame, reads a connection request from the central working memory 3 and executes it using the switching matrix.
- the memory buses 2a and 2b like the central working memories 3 and 3 ', are likewise redundant and are designated 2a' and 2b 'in FIG. 3.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multi Processors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19945142 | 1999-09-21 | ||
| DE19945142 | 1999-09-21 | ||
| PCT/DE2000/003298 WO2001022250A2 (de) | 1999-09-21 | 2000-09-21 | Mehrere speicherbusse in einem multiprozessor-system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1214664A2 true EP1214664A2 (de) | 2002-06-19 |
Family
ID=7922726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00975783A Withdrawn EP1214664A2 (de) | 1999-09-21 | 2000-09-21 | Mehrere speicherbusse in einem multiprozessor-system |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1214664A2 (de) |
| WO (1) | WO2001022250A2 (de) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175841A (en) * | 1987-03-13 | 1992-12-29 | Texas Instruments Incorporated | Data processing device with multiple on-chip memory buses |
| US5860120A (en) * | 1996-12-09 | 1999-01-12 | Intel Corporation | Directory-based coherency system using two bits to maintain coherency on a dual ported memory system |
-
2000
- 2000-09-21 EP EP00975783A patent/EP1214664A2/de not_active Withdrawn
- 2000-09-21 WO PCT/DE2000/003298 patent/WO2001022250A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0122250A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001022250A3 (de) | 2002-03-21 |
| WO2001022250A2 (de) | 2001-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20020312 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): DE ES GB IT |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NOKIA SIEMENS NETWORKS GMBH & CO. KG |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NOKIA SIEMENS NETWORKS S.P.A. |
|
| 17Q | First examination report despatched |
Effective date: 20071112 |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NOKIA SIEMENS NETWORKS GMBH & CO. KG |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20080326 |