Wire-Cell News (Posts about graph)

Wire-Cell fans

Brett Viren — Thu, 03 Dec 2020 14:50:51 GMT

Of course, everyone is a fan of Wire-Cell. This post isn't about you. It's about a common pattern that is found in Wire-Cell data flow graphs and how this pattern is realized at the WCT C++ level and how to form it in WCT configuration.

Response Refactoring

Brett Viren — Tue, 03 Jul 2018 22:59:30 GMT

In WCT we try to follow the mantra "everything is a component". One corollary to that is we try to avoid hard-wiring dependencies by having functionality accessed by hard-wired construction of concrete classes. The various classes having to do with responses suffered from not being available as components. This led to the entire toolkit having hard-wired behavior which hampers support for multiple detectors. This post describes some recent steps to fix this problem.

Pgrapher Configuration Improvements

Brett Viren — Fri, 29 Jun 2018 18:33:44 GMT

A powerful new idiom has been developed to simplify developing Jsonnet configuration files for Wire-Cell toolkit's Pgrapher app component.

Pgrapher Execution Engine

Brett Viren — Fri, 22 Jun 2018 19:16:42 GMT

The Wire Cell Toolkit is based on functional components which can be used as arbitrary "tools" (in the Gaudi sense of the word). But, they can also composed together following the paradigm of data flow programming (DFP). Each component thus becomes a node (aka "vertex") in a graph joined to other nodes via edges that represent the transfer of data from an output port of one to the input port of the other. A new way to perform this execution has been added to WCT in the form of the Pgrapher app.