Systolic memory access

A device, comprising:

• one or more buffers;
• an optical receiver;
• an optical transmitter;
• an optical connector operable to an optical fiber to the optical transmitter through the optical receiver;
• and
• a controller coupled to the one or more buffers and configured to operate a combination of the optical receiver and the optical transmitter in either a transmission mode or a reception mode;
• wherein the optical transmitter is configured to modulate optical signals coming from a light source toward the optical connector in the transmission mode;
• and the optical receiver is configured to detect optical signals propagating from the optical connector toward the optical transmitter in the reception mode.

A non-transitory computer storage medium storing instructions which, when executed in a computing device, cause the computing device to perform a method, comprising:

• compiling a program of a computation task based on a transaction level model of a systolic processor having a processor sub-system connected to two separate memory sub-systems, including a first memory sub-system and a second memory sub-system;
• mapping, based on the compiling, memory addresses in the program to the two memory sub-systems;
• and
• generating instructions for the systolic processor to read from the first memory sub-system and write to the second memory sub-system in a first set of predetermined clock cycles, and to write to the first memory sub-system and read from the second memory sub-system in a second set of predetermined clock cycles, wherein the first set of predetermined clock cycles and the second set of predetermined clock cycles are mutually exclusive.