Changelog

All notable changes to this project will be documented in this file.

[Released]

[1.0.0] - 2018-01-09

Features

first release candidate
supports basic NoC simulation features
configurable NoC routers with routing and selection
simple processing element model
link model with transmission matrixes and raw data output for debugging
synthetic, taskbased, and netrace support; netrace for 2D mode only

[1.1.0] - 2018-01-22

Features

added functionalty of configurable routers
adaptive routing and selection methods
separation of processing elements and network interface
removed netrace
cmake support and simple build script

Improvements

links: removed unnecessary components; moved information to matrix

Known Issues

calculation of data amounts still faulty.
router matrixes missing
implementation of agra, esparda, mafa missing

[1.1.1] - 2018-01-23

Features

Sythetic traffic patterns fully implemented
Fixes for the task model
implementations of arga, esparda, mafa

Known Issues

calculation of data amounts still faulty.
router matrixes missing

[1.1.2] - 2018-01-29

Features

Removed Netrace for licensing

[1.1.3] - 2018-01-30

Improvements

Removed Bug in XYZ routing preventing more than 2x2x2 topologies

[1.1.4] - 2018-05-11

Features

Traffic patterns for face recognition 3D VSoC. Includes task graph and (manual) mapping. Parameters include grade of parallelization
GUI for network topology

Improvements

Bug in uniform random traffic pattern: Distribution in PEs changed.

[1.1.5] - 2018-05-22

Features

Traffic statistics with minimum, maximum, and average latencies of flits, packets, and network
Extended network report
New router arbiter

Improvements

Bug fix in router arbiter to fix network stalls

[1.1.6] - 2018-06-08

Features

corrented urand traffic pattern; packets from each processing element send per block (set via interval)
Start and duration now determine length of synthetic run
repeat determines the number of packets send per
Setting -1 for repeat of for length sets this very value to infinity
Multiphase support for synthetic traffic patterns

Known Issues

min value in sythetic phase is equal to max values

[1.1.7] - 2018-07-18

Improvments

bug fixed in router; flow control corrected
bug fixed in synthetic traffic generation
clean up

Features

VC arbitration in port level
Code build

[1.1.8] - 2018-08-30

Features

adding a 'fair' arbiter (round robin over flits from active ports). See Bamberg, Patmos 2018, "Coding-aware Link Energy Estimation for 2d and 3D Networks-on-chip with Virtual Channels"
code formatting
urand scripts to generate plots for router saturation

Known Issues

only one VC for NetworkInterface

[1.1.9] - 2018-11-22

Features

a new selection, which selects the first free VC
handling asynchronous speed (each layer can have its one clock delay)
a new routing HeterogeneousXYZ
each VC can have its one buffer depth
enhancing the usage of the inner data structures used by routers
enhancing the urand script and the plotting scripts

Known Issues

segmentation faults might happen randomly

[2.0] - 2019-01-25

Features

Very large update with completly new data structures
New data structures without with reduced complexity
Many thanks to @imadhajjar

Known Issues

Performance not measured
Still have to verify the VHDL model
Scripts not finished
lots more testing required

[2.0.1] - 2019-02-13

Features

Fixed Heisenbug.
Added some statistics, not finished.

Known Issues

all of version 2.0

[v2020-11] - Nov 2020

New naming convention as we applied rolling updates.

New Features

Netrace mode
Test envionment
Bandwidth measurements
Trace file generator for synthetic mode
New command line interface in netrace mode

Known issues

all from v2.0.1 removed.
small bugs see open issues