How to define a large SRAM?

[Farbin]

I need to define a large SRAM of 512 MB for my design. I was copying the example of simple_weight_stationary architecture where there is a 128kB SRAM. Then I set "n_instances" to 4098 to make the total SRAM size to 512 MB. However, this leads to a huge leakage energy and I'm observing that only one instance is being used always even though the required data size (inputs, outputs, and weights) is much bigger than 128kB.

Could you kindly suggest the best way to define such SRAMs?

[tanner-andrulis]

https://timeloop.csail.mit.edu/v4/input-formats/design/architecture

The width and depth keys are used to change SRAM size.