Constraints for applications in a heterogeneous programming environment

A host, comprising:

• a processor;
• graph source code defining a plurality of kernels and a plurality of communication links, wherein each of the plurality of communication links couple a respective pair of the plurality of kernels to form a dataflow graph;
• and
• a compiler configured to compile the graph source code to implement the dataflow graph in a heterogeneous processing environment, wherein compiler is configured to:
• identify a constraint corresponding to a graph object in the dataflow graph, wherein the graph object comprises at least one of the plurality of kernels and plurality of communication links, and
• configure, when compiling the graph source code, the graph object in the heterogeneous processing environment in an integrated circuit to satisfy the constraint, wherein the heterogeneous processing environment in the integrated circuit comprises programmable logic and an array of data processing engines, wherein the constraint is used to select at least one of the programmable logic and the array of data processing engines to which the graph object is assigned for execution.

A non-transitory computer readable storage medium comprising computer readable program code embodied thereon, the computer readable program code performs an operation when executed on a computer processor, the operation comprising:

• receiving graph source code, the graph source code defining a plurality of kernels and a plurality of communication links, wherein each of the plurality of communication links couple a respective pair of the plurality of kernels to form a dataflow graph;
• identifying a constraint corresponding to a graph object in the dataflow graph, wherein the graph object comprises at least one of the plurality of kernels and plurality of communication links;
• configuring, when compiling the graph source code, the graph object in a heterogeneous processing system in an integrated circuit to satisfy the constraint, wherein the constraint is used to select a particular hardware element, or a group of hardware elements, in the heterogeneous processing system to which the graph object is assigned;
• and
• implementing the dataflow graph on the heterogeneous processing system in the integrated circuit.