After using OpenSoCFabric, I find there are many problems about it and no one to give a clear step to use tool. Therefore, I write this repo for beignner to use OpenSoCFabric.
This repo is based on Schoeberl.
Recent advancements in technology scaling have shown a trend towards greater integration with large-scale chips containing thousands of processors connected to memories and other I/O devices using non-trivial network topologies. Software simulation proves insufficient to study the tradeoffs in such complex systems due to slow execution time, whereas hardware RTL development is too time-consuming. We present OpenSoC Fabric, an on-chip network generation infrastructure which aims to provide a parameterizable and powerful on-chip network generator for evaluating future high performance computing architectures based on SoC technology. OpenSoC Fabric leverages a new hardware DSL, Chisel, which contains powerful abstractions provided by its base language, Scala, and generates both software (C++) and hardware (Verilog) models from a single code base. The OpenSoC Fabric infrastructure is modeled after existing state-of-the-art simulators, offers large and powerful collections of configuration options, and follows object-oriented design and functional programming to make functionality extension as easy as possible.
1.Open Linux Shell
- If you use windows, you can install WSL.
2.Install Java11 in Linux
3.Install sbt for Chisel
4.Config the command of OpenSoCFabric in doit.sh/dohw.sh
- You can find detail of configuration in website and in main.scala.
5.Run the bash script in shell
- run
./doit.shto do software simulation - run
./dohw.shto do hardware simulation
6.Run the python script to get result
- Only SW simulation can get csv result and use this Python script.
- run
./ststPlot.py - For windows user, you can just run plot.bat
- The result is show in end of page.
1.Increaing JVM heap memory
- You can add
export SBT_OPT="-Xms1024M -Xmx2048M -Xss2M -XX:MaxMetaspaceSize=1024M"in envionment variables to fix it.
2.Running stack when your NoC bigger than 2x2(SW)
- Because it need more time to simulate. E.g. 3x3 NoC need 10 minutes in SW simulation and 4x4 NoC need 30 minutes in SW simulation.
main.scala: define all option.
toplevel.scala: define toplevel class.
channel.scala define the flit class.
channelq.scala define injection class.
module.scala: this is a built-in Chisel class that all hardware modules must extend.
parameters.scala: define parameter class.
allocator.scala:
arbiter.scala: define RRarbiter(round robin) and RRarbiter with priority.
credit.scala: define credit consumer and generater.
networkinterface.scala: This class implements synthesizable hardware to divide packets into the appropriate number of flits. It is used with test harnesses that inject packets into the network. It uses an instance of the class "PacketToFlit".
packetQ.scala: This module implements an injection queue which receives flits from the network endpoints (traffic sources) and injects them to the attached router respecting credits. The queue has a single produces and a single consumer. Flits are sent to the consumer when credits are available.
packetToFlit.scala: This is an abstract class that takes a data structure as input and generates a collection of flits.
regfile.scala: define a register file used by the router to store head flit information to perform allocation and routing while the head flit itself resides in the input queue.
router.scala: define simplerouter and VCrouter.
routerStateManager.scala: define FSM of VCrouter.
routingfunction.scala: define two routing algrithm. DOR for Mesh and FlatFly.
switch.scala: define a mux-based crossbar of variable inputs and outputs.
topology.scala: define topology of NoC. It have two mode:Mesh and FlatFly(Flattend Butterfly). Every mode have normal edition and VC edition, so it have totoally 4 mode.
CFlatBtfly_RandomTester.scala and CFlatBtfly_RandomTester_C2.scala: define Flatfly radom test.
CMesh_CombinedTester_VarInjRate.scala: define 4 traffic pattern: Neighbor, Tornado, Transpose, BitReverse.
CMesh_Tester_Combined_Packet.scala and CMesh_Tester_Combined_Packet_C2.scala: define packet NoC tester(radom and neighbor).
CMesh_TraceTester.scala: record the NoC data and generate CSV file.
RouterRandomTester.scala: define random test for router.
routerTester.scala: define VCrouter test.
bitunion.scala:
busprobe.scala:
Ringbuffer.scala: define ring buffer.
example.scala: no content.
axi.scala: define axi bus but no use.
OpenSoC Fabric, Copyright (c) 2014, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from the U.S. Dept. of Energy). All rights reserved.
If you have questions about your rights to use or distribute this software, please contact Berkeley Lab's Technology Transfer Department at TTD@lbl.gov.
NOTICE. This software is owned by the U.S. Department of Energy. As such, the U.S. Government has been granted for itself and others acting on its behalf a paid-up, nonexclusive, irrevocable, worldwide license in the Software to reproduce, prepare derivative works, and perform publicly and display publicly. Beginning five (5) years after the date permission to assert copyright is obtained from the U.S. Department of Energy, and subject to any subsequent five (5) year renewals, the U.S. Government is granted for itself and others acting on its behalf a paid-up, nonexclusive, irrevocable, worldwide license in the Software to reproduce, prepare derivative works, distribute copies to the public, perform publicly and display publicly, and to permit others to do so.