Xilinx, Inc.

Abnikant Singh

Akella Sastry

Rishi Surendran

Shail Aditya Gupta

Henri Fraisse

Mukund Sivaraman

A multi-core architecture in some examples may have hundreds of 'cores', each core comprising a digital signal processor (DSP) and various functional computing units. A method of implementing a multi-core graph compiler for a system-on-chip (SOC) having a data processing engine (DPE) array is disclosed herein. An Adaptive Intelligence Engine (AIE) compiler is one example of a multi-core graph compiler. An compiler is used to mitigate performance degradation due to memory stalls (collisions) when executing an AIE compiler-accelerated application on an AI Engine. The method disclosed here addresses phase order issues to mitigate the memory collisions.

Method for mitigating memory access conflicts in a multi-core graph compiler

Some examples described herein relate to packet identification (ID) assignment for a routing network in a programmable integrated circuit (IC). In an example, a design system includes a processor and a memory coupled to the processor. The memory stores instruction code. The processor is configured to execute the instruction code to construct an interference graph based on routes of logical nets through switches in a routing network, and assign identifications to the routes comprising performing vertex coloring of vertices of the interference graph. The interference graph includes the vertices and interference edges. Each vertex represents one of the logical nets having a route. Each interference edge connects two vertices that represent corresponding two logical nets that have routes that share at least one port of a switch. The identifications correspond to values assigned to the vertices by the vertex coloring.

Packet identification (ID) assignment for routing network

An example method of implementing an application for a system-on-chip (SOC) having a data processing engine (DPE) array including determining a graph representation of the application, the graph representation including nodes representing kernels of the application and edges representing communication between the kernels, mapping, based on the graph, the kernels onto DPEs of the DPE array and data structures of the kernels onto memory in the DPE array, building a routing graph of all possible routing choices in the DPE array for communicate channels between DPEs and circuitry of the application configured in programmable logic of the SOC, adding constraints to the routing graph based on an architecture of the DPE array, routing communication channels between DPEs and circuitry of the application configured in programmable logic of the SOC based on the routing graph, and generating implementation data for programming the SOC to implement the application based on results of the mapping and the routing.

Routing in a compilation flow for a heterogeneous multi-core architecture

An example method of implementing an application for a system-on-chip (SOC) having a data processing engine (DPE) array includes obtaining a graph representation of the application, the graph representation including nodes representing kernels of the application and edges representing communication between the kernels, mapping, based on the graph, the kernels onto DPEs of the DPE array and data structures of the kernels onto memory in the DPE array, routing communication channels between DPEs and circuitry of the application configured in programmable logic of the SOC, adding at least one first-in-first-out (FIFO) buffer to at least one of the communication channels, and generating implementation data for programming the SOC to implement the application based on results of the mapping and the routing.

Growing community of inventors

Hyderabad Telangana, India

Abnikant Singh