Loop execution in a reconfigurable compute fabric using flow controllers for respective synchronous flows

A reconfigurable compute fabric, comprising:

• a first synchronous flow comprising a first flow controller and at least one compute element, the first flow controller programmed to perform operations comprising:
• initiating a thread within the first synchronous flow to execute a first portion of an iteration of a loop;
• and
• subsequently initiating at least one additional thread within the first synchronous flow for a subsequent iteration of the loop;
• and
• a second synchronous flow comprising a second flow controller and at least one compute element, the second flow controller programmed to perform operations comprising:
• receiving an asynchronous message to initiate a thread at the second synchronous flow for executing a second portion of the iteration;
• determining that the iteration is a final iteration of the loop to be executed;
• initiating the thread at him the second synchronous flow with a synchronous message containing a final iteration flag;
• and
• executing the thread within the second synchronous flow, including checking for the final iteration flag in the synchronous message and performing a conditional operation based on the final iteration flag being present.

A non-transitory machine-readable medium comprising instructions stored thereon that, when executed at a reconfigurable compute fabric cause the reconfigurable compute fabric to execute operations comprising:

• initiating a thread at a first synchronous flow controlled by a first flow controller to execute a first portion of an iteration of a loop, and subsequently initiating at least one additional thread within the first synchronous flow for a subsequent iteration of the loop;
• receiving, at a second flow controller of a second synchronous flow, an asynchronous message to initiate a thread at the second synchronous flow for executing a second portion of the iteration;
• determining by the second flow controller that the iteration is a final iteration of the loop to be executed;
• initiating the thread at him the second synchronous flow with a synchronous message containing a final iteration flag;
• and
• executing the thread within the second synchronous flow, including checking for the final iteration flag in the synchronous message and performing a conditional operation based on the final iteration flag being present.