Ciw

Ciw is a simulation library for open queueing networks.

[Ciw @CiwPython]

Ciw 3.2.0 is released!

Many new features including Routing objects for logic-based routing (e.g. join-shortest-queue); system capacities; server schedule offsets.

https://t.co/NNSd3WZU4U

[Ciw @CiwPython]

Ciw 3.1.1 is released!

Added Mixture distributions, state-dependent baulking, time dependent service disciplines!

https://t.co/7sFDJMxz1n

[Ciw @CiwPython]

Ciw 3.1.0 is released!

Server schedules now defined using Schedule objects, and Slotted services implemented!
https://t.co/irMf69NC1i

[Ciw @CiwPython]

Ciw 3.0.0 is released!

Now has the ability to choose and define from a number of service disciplines including FIFO, LIFO and SIRO, & other big changes including labelling customer classes with any string, some performance improvements, and api changes.

https://t.co/FcQlIjcrpt

[Ciw @CiwPython]

Ciw 2.3.7 is released!

New `Possion`, 'Geometric` and `Binomial` distributions added to randomly sample customer batch sizes:
https://t.co/2Ma4T3oRQB

[Ciw @CiwPython]

Ciw 2.3.2 is released!

A new `PoissonIntervals` distribution allowing time dependent Poisson arrivals that overcomes traditional problems with using time dependent inter-arrival sampling across thresholds:

https://t.co/2znBoVpzHN

[Ciw @CiwPython]

Ciw 2.3.1 is released!

A number of minor bug fixes.

https://t.co/kbxtqAXkHE

[Vince Knight @drvinceknight]

Really excited to get our hard copies of "Applied Mathematics with Open Source Software" by @GeraintPalmer and I.

From the blurb on the back:

"Each chapter starts with a problem, gives an overview of the relevant theory, shows a solution approach in R and in Python and ...

1/

[Geraint Palmer @GeraintPalmer]

Me and @drvinceknight wrote a book!

Applied Mathematics with Open-Source Software: Operational Research Problems with Python and R.

Out next week!

#orms #Python #RProgramming

[Ciw @CiwPython]

Ciw 2.3.0 is released!

New features include: reneging customers (https://t.co/YMzTmUBkpw); customers changing class while waiting (https://t.co/GNiEER2GmI); different options for interrupted services (https://t.co/e6sOiELgES)

[Ciw @CiwPython]

Ciw 2.2.4 is released!

After a nice hack-day with @drvinceknight @Michalis_Pan @GeraintPalmer we have a few internal and documentation improvements, including recording server ID in the DataRecord.

https://t.co/kbxtqAXkHE

[Ciw @CiwPython]

Ciw 2.2.3 is released!

Server priorities implemented by @Michalis_Pan!

https://t.co/KP4kcc5nc8

[Ciw @CiwPython]

And docs now include an example of DES+SD hybrid simulations too: https://t.co/KF38p72wGR

https://t.co/FJnIYQy9Eb

[Geraint Palmer @GeraintPalmer]

Latest paper published online: "Implementing hybrid simulations that integrate DES+SD in Python"

Paper: https://t.co/oQKoPG8OHc

All software: https://t.co/RfrMmpTY9v

[Ciw @CiwPython]

Ciw 2.2.2 is released!

Minor internal changes thanks to @Michalis_Pan, and new documentation on Server-dependent distributions:

https://t.co/sh6w0HW5uE

[Ciw @CiwPython]

Ciw 2.2.1 is released!

Phase-Type distributions are now available.

Shortcut classes for Erlang, HyperExponential, HyperErlang, and Coxian distirbutions implemented too.

https://t.co/pr6kL2OSNn

[Ciw @CiwPython]

Ciw 2.2.0 is released!

Processor sharing is now implemented.
Ciw can now simulate limited and capacitated PS, plus an example in the docs for a join-shortest-queue PS system too.

https://t.co/HoAnum5geL

Ciw now also allows different `node_class`'s for each node in the network.

[Ciw @CiwPython]

Ciw 2.1.3 is released!

Docs now have a library of custom behaviour examples using inheritance on Ciw's classes. More to come!

https://t.co/nTddt7fgLi

And some internal minor refactors.

[Ciw @CiwPython]

Ciw 2.1.2 is released!

Simulation object can take in custom Individual and Servers classes.

https://t.co/kbxtqAXkHE

[Ciw @CiwPython]

We adopted this fantastic documentation structure after watching @evildmp's great talk at @PyConNA:

https://t.co/uhOaAot7Ok

[DIVIO @divio]

If you’ve adopted or work with our documentation system and would like to be listed here https://t.co/wAXkpUVzzC too, please let us know.

[Vince Knight @drvinceknight]

.@daffidwilde's latest paper preprint is available here: https://t.co/7RFFstE9eE

Combines clustering + discrete event simulation (@CiwPython). The neat thing is recovering queueing system parameters in healthcare (actual length of stay and capacity is not always known). #orms