HANDLING DYNAMIC TENSOR LENGTHS IN A RECONFIGURABLE PROCESSOR THAT INCLUDES MULTIPLE MEMORY UNITS

In some aspects, a program is executed on a coarse-grained reconfigurable (CGR) processor. The CGR determines that the program produces an output that includes a variable length tensor, determines a maximum size of the variable length tensor and sets, based on the maximum size, a maximum of a counter associated with the program. The counter is set to an initial value of zero. The CGR initiates execution of the program, causing the program to receive an input tensor. Based on determining that the program is operating on a first portion of the input tensor, the CGR performs an update to the counter, to create an updated counter, and communicates the updated counter to one or more consumers within the program. After determining that the program has completed operating on the input tensor, a final size of the output is communicated to one or more downstream consumers external to the program.