serrano

Serrano is an experimental high-level model of a coarse-grain reconfigurable processor.

At a Glance

Source Code: sst-elements/.../serrano  
SST Name: serrano  
Maturity Level: Early Development (1)  
Development Path: Experimental  
Last Released: Never

Required dependencies

None

Optional dependencies

None

Elements

Use sst-info serrano or sst-info serrano.<element> to see each element's parameters, ports, and statistics.

Library	Element	Type	Description
serrano	Serrano	Component	Coarse-grain reconfigurable array (CGRA) model; runs one or more kernels, each a graph file of units and links given by the kernel0, kernel1, ... parameters
serrano	SerranoIteratorUnit	SubComponent	Unit that produces a sequence of values (ITERATOR nodes in a kernel graph)
serrano	SerranoBasicUnit	SubComponent	Unit that applies a simple operation to its inputs (ADD and SUB nodes)
serrano	SerranoPrinterUnit	SubComponent	Unit that prints the values it receives (PRINTER nodes)

The units are created automatically from the nodes in each kernel graph. For example, serrano/tests/graphs/sum.graph adds two integer sequences and prints the result:

serrano/tests/graphs/sum.graph

NODE 0 ITERATOR INT32 start 0 step 1 end 100
NODE 1 ITERATOR INT32 start 100 step 1 end 200
NODE 2 ADD INT32
NODE 3 PRINTER INT32

LINK 0 0 2
LINK 1 1 2
LINK 2 2 3

Running the sum kernel (based on serrano/tests/test_serrano.py)

import sst

sst.setProgramOption("timebase", "1ps")

serrano = sst.Component("serrano", "serrano.Serrano")
serrano.addParams({
    "kernel0" : "sum.graph",
})