Convolution calculations in multiple dimensions

An apparatus comprising:

• a memory configured to store data;
• a first circuit comprising a first buffer and configured to (i) fetch a kernel from said memory to said first buffer, wherein said kernel comprises a plurality of kernel values, and (ii) present said kernel values as stored in said first buffer in a first signal;
• a second circuit comprising a second buffer and configured to (i) fetch a block from said memory to said second buffer, wherein said block comprises a plurality of input tiles and each of said input tiles comprises a plurality of input values in multiple dimensions, and (ii) present said input tiles as stored in said second buffer in a second signal, wherein said first circuit fetches said kernel from said memory slower than said second circuits fetches said block from said memory;
• and
• a third circuit configured to (i) receive said kernel values from said first circuit in said first signal, (ii) receive said input tiles from said second circuit in said second signal, (iii) calculate a plurality of intermediate values in parallel by multiplying said input tiles with a corresponding one of said kernel values and (iv) calculate an output tile comprising a plurality of output values based on said intermediate values.