Ciw is a simulation library for open queueing networks.
Wales, United Kingdom
Joined June 2016
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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.
ciw.readthedocs.io/en/latest…
Ciw 3.1.1 is released!
Added Mixture distributions, state-dependent baulking, time dependent service disciplines!
ciw.readthedocs.io/en/latest…
Ciw 3.1.0 is released!
Server schedules now defined using Schedule objects, and Slotted services implemented!
ciw.readthedocs.io/en/latest…
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.
ciw.readthedocs.io/en/latest…
Ciw 2.3.7 is released!
New `Possion`, 'Geometric` and `Binomial` distributions added to randomly sample customer batch sizes:
ciw.readthedocs.io/en/latest…
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:
ciw.readthedocs.io/en/latest…
Ciw retweeted
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/
Ciw retweeted
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 2.3.0 is released!
New features include: reneging customers (bit.ly/3ysb2Gj); customers changing class while waiting (bit.ly/3M42Q2L); different options for interrupted services (bit.ly/3vZTNuc)
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.
ciw.readthedocs.io/en/latest…
Ciw 2.2.3 is released!
Server priorities implemented by @Michalis_Pan!
ciw.readthedocs.io/en/latest…
Ciw 2.2.2 is released!
Minor internal changes thanks to @Michalis_Pan, and new documentation on Server-dependent distributions:
ciw.readthedocs.io/en/latest…
And docs now include an example of DES+SD hybrid simulations too: ciw.readthedocs.io/en/latest…
nitter.gq/GeraintPalmer/status/1…
Latest paper published online: "Implementing hybrid simulations that integrate DES+SD in Python"
Paper: tandfonline.com/doi/full/10.…
All software: zenodo.org/record/4601529#.Y…
Ciw 2.2.1 is released!
Phase-Type distributions are now available.
Shortcut classes for Erlang, HyperExponential, HyperErlang, and Coxian distirbutions implemented too.
ciw.readthedocs.io/en/latest…
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.
ciw.readthedocs.io/en/latest…
Ciw now also allows different `node_class`'s for each node in the network.
Ciw 2.1.3 is released!
Docs now have a library of custom behaviour examples using inheritance on Ciw's classes. More to come!
ciw.readthedocs.io/en/latest…
And some internal minor refactors.
Ciw 2.1.2 is released!
Simulation object can take in custom Individual and Servers classes.
ciw.readthedocs.io/en/latest…
We adopted this fantastic documentation structure after watching @evildmp's great talk at @PyConNA:
ciw.readthedocs.io/en/latest…
If you’ve adopted or work with our documentation system and would like to be listed here documentation.divio.com/adop… too, please let us know.
Ciw retweeted
.@daffidwilde's latest paper preprint is available here: arxiv.org/abs/2008.04295
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
