System and method for a hierarchical system management architecture of a highly scalable computing system
View Patent ↗A modular computer system includes at least two processing functional modules each including a processing unit adapted to process data and adapted to input/output data to other functional modules through at least two ports with each port including a plurality of data lines. At least one routing functional module is adapted to route data and adapted to input/output data to other functional modules through at least two ports with each port including a plurality of data lines. At least one input or output functional module is adapted to input or output data and adapted to input/output data to other functional modules through at least one port including a plurality of data lines. Each processing, routing and input or output functional module includes a local controller adapted to control the local operation of the associated functional module, wherein the local controller is adapted to input and output control information over control lines connected to the respective ports of its functional module. At least one system controller functional module is adapted to communicate with one or more local controllers and provide control at a level above the local controllers. Each of the functional modules adapted to be cabled together with a single cable that includes a plurality of data lines and control lines such that control lines in each module are connected together and data lines in each unit are connected together. Each of the local controllers adapted to detect other local controllers to which it is connected and to thereby collectively determine the overall configuration of a system.
1. A modular communication system in an embedded control system, comprising:
at least one device specific module defining requirements for communication in each case with a device corresponding thereto;
a device independent module including a library of functions executed therein to perform operations specified by a selected device specific module to communicate via the selected device specific module with the device corresponding thereto;
an indexed list of local tasks referenced by said device independent module to route communications to the local tasks; and
a linked list of addresses of remote devices referenced by said device independent module to route communications to the remote devices.
2. A method of communicating in an embedded control system, comprising:
defining requirements in at least one device specific module for communication in each case with a device corresponding thereto;
storing a library of functions for communication in a device independent module; and
executing at least one of the functions in the device independent module as specified by a selected device specific module to communicate via the selected device specific module with the device corresponding thereto.
3. The method of communicating in an embedded control system as in claim 2 , further comprising:
maintaining an indexed list of local tasks communicating with the device independent module; and
routing communications to the local tasks by referencing the indexed list.
4. The method of communicating in an embedded control system as in claim 3 ,
wherein the embedded system is part of a general purpose computer, and
wherein said method further comprises registering in a linked list addresses of remote devices within the general purpose computer.
5. The method of communicating in an embedded control system as in claim 4 , further comprising registering a default address for communications not routed to the local tasks and having an address not included in the linked list.
6. The method of communicating in an embedded control system as in claim 5 , further comprising generating an error condition when a message received from the default address has an address that is not in either of the indexed and linked lists.
7. A hierarchical multi-node computer system, comprising:
at least two levels of computing nodes, each node including an embedded control system executing
at least one device specific module defining requirements for communication in each case with a device corresponding thereto; and
a device independent module including a library of functions executed therein to perform operations specified by a selected device specific module to communicate via the selected device specific module with the device corresponding thereto.
8. The hierarchical multi-node computer system as in claim 7 ,
wherein the embedded control system in each node maintains an indexed list of local tasks communicating with the device independent module and routes communications to the local tasks by referencing the indexed list; and
wherein the embedded control system in each node also registers in a linked list addresses of remote devices.
9. The hierarchical multi-node computer system as in claim 8 ,
wherein said hierarchical multi-node computer system includes at least two levels of nodes, a higher level and a lower level, and
wherein the embedded control system in each node at the lower level registers a default address to route communications to the embedded control system in a higher level node for all communications having a remote address not found in the linked list.
10. A computer-readable medium having computer-executable instructions to cause a controller to perform a method comprising:
defining requirements in at least one device specific module for communication in each case with a device corresponding thereto;
storing a library of functions for communication in a device independent module; and
executing at least one of the functions in the device independent module as specified by a selected device specific module to communicate via the selected device specific module with the device corresponding thereto.
11. The computer-readable medium as in claim 10 , said method further comprising:
maintaining an indexed list of local tasks communicating with the device independent module; and
routing communications to the local tasks by referencing the indexed list.
12. The computer-readable medium as in claim 11 ,
wherein the embedded system is part of a general purpose computer, and
wherein said method further comprises registering in a linked list addresses of remote devices within the general purpose computer.
13. The computer-readable medium as in claim 12 , said method further comprising registering a default address for communications not routed to the local tasks and having an address not included in the linked list.
14. The computer-readable medium as in claim 13 , said method further comprising generating an error condition when a message received from the default address has an address that is not in either of the indexed and linked lists.