Dynamically configurable, multi-ported co-processor for convolutional neural networks

1. A method for processing convolutional neural networks (CNN), comprising:

determining a workload for a convolutional neural networks;

generating a control signal based upon the workload to permit a selection of a type of parallelism to be employed in processing a layer of the CNN;

configuring an input switch to enable a number of convolvers which convolve an input in accordance with the control signal;

configuring an output switch to enable a number of output branches for a given cycle in accordance with the control signal; and

processing outputs from the output branches, said processing including reconfiguring the input switch and the output switch in accordance with a next layer of the CNN to be processed.

2. The method as recited in claim 1 , further comprising selecting the number of convolvers and the number of output branches based upon a type of parallelism needed for a given neural network layer.

3. The method as recited in claim 2 , wherein the type of parallelism includes one of parallelism within a convolution operation, inter-output parallelism and intra-output parallelism.

4. The method as recited in claim 1 , further comprising providing a memory subsystem having at least two banks, wherein a first bank provides input storage and a second bank provides output storage to enable a stateless, streaming coprocessor architecture.

5. The method as recited in claim 4 , further comprising providing a third memory bank for storing intermediate results.