Abstract: A network-on-chip configuration includes a first plurality of cores arranged in a two-dimensional mesh; a first plurality of routers, each of the first plurality of routers associated with a corresponding local one of the first plurality of cores, each of the first plurality of routers having a plurality of directional ports configured to provide connections to other ones of the first plurality of routers; a second plurality of cores disposed around a periphery of the two-dimensional mesh arrangement; and a second plurality of routers, each of the second plurality of routers associated with a corresponding local one of the second plurality of cores, and having a directional port configured to provide a connection to a neighboring one of the first plurality of routers.
Type:
Application
Filed:
December 21, 2012
Publication date:
June 26, 2014
Applicant:
NetSpeed Systems
Inventors:
Sailesh KUMAR, Eric NORIGE, Joji PHILIP, Mahmud HASSAN, Sundari MITRA, Joseph ROWLANDS
Abstract: Systems and methods for automatically building a deadlock free inter-communication network in a multi-core system are described. The example embodiments described herein involve deadlock detection during the mapping of user specified communication pattern amongst blocks of the system. Detected deadlocks are then avoided by re-allocation of channel resources. An example embodiment of the deadlock avoidance scheme is presented on Network-on-chip interconnects for large scale multi-core system-on-chips.
Type:
Application
Filed:
August 30, 2012
Publication date:
March 6, 2014
Applicant:
NetSpeed Systems
Inventors:
Joji PHILIP, Sailesh KUMAR, Eric NORIGE, Mahmud HASSAN, Sundari MITRA
Abstract: Systems and methods described herein are directed to solutions for Network on Chip (NoC) interconnects that automatically and dynamically determines the position of various hosts in a NoC topology based on the connectivity, bandwidth and latency requirements of the system traffic flows and certain performance optimization metrics such as system interconnect latency and interconnect cost. The example implementations selects hosts for relocation consideration and determines a new possible position for them in the NoC based on the system traffic specification, and using probabilistic functions to decide if the relocation is carried out or not. The procedure is repeated over new sets of hosts until certain optimization targets are satisfied or repetition count is exceeded.
Abstract: A method of interconnecting blocks of heterogeneous dimensions using a NoC interconnect with sparse mesh topology includes determining a size of a mesh reference grid based on dimensions of the chip, dimensions of the blocks of heterogeneous dimensions, relative placement of the blocks and a number of host ports required for each of the blocks of heterogeneous dimensions, overlaying the blocks of heterogeneous dimensions on the mesh reference grid based on based on a guidance floor plan for placement of the blocks of heterogeneous dimensions, removing ones of a plurality of nodes and corresponding ones of links to the ones of the plurality of nodes which are blocked by the overlaid blocks of heterogeneous dimensions, based on porosity information of the blocks of heterogeneous dimensions, and mapping inter-block communication of the network-on-chip architecture over remaining ones of the nodes and corresponding remaining ones of the links.
Type:
Grant
Filed:
October 23, 2012
Date of Patent:
December 3, 2013
Assignee:
NetSpeed Systems
Inventors:
Joji Philip, Sailesh Kumar, Eric Norige, Mahmud Hassan, Sundari Mitra