Wire-Cell News (Posts about devel)

Architecture and design presentation

Brett Viren — Fri, 08 Oct 2021 20:19:37 GMT

Recently the BNL Wire-Cell group had a discussion on WCT's architecture and design. The slides may be interesting to others.

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Releases 15, 16 and 17

Brett Viren — Tue, 31 Aug 2021 16:52:25 GMT

Releases 0.15, 0.16 and 0.17 (in prep) come with some changes worth mentioning. So, here we mention them. At length….

Some changes are "breaking" and others provide new, better ways to do things. Many are cleanups which were needed for a while. As 0.17 is not technically cut, it may have additional changes. So, sit back and read about some of the improvements that you may not yet have learned about.

App components

Brett Viren — Thu, 03 Dec 2020 19:38:32 GMT

As Wire-Cell Toolkit is a toolkit, it does not force a top-down structure starting from a main() function. But, it does provide a layered top-down structure that applications may use after taking their own choice of entry point. This post talks about a layer of this structure called a WCT "app".

Build system cleanup

Brett Viren — Tue, 14 Jan 2020 15:32:43 GMT

The Waf-based build system for the toolkit is recently cleaned up and expanded to support user packages. For existing users this change should be invisible. This post gives the details of the change, what to do when updates to the build system are needed and how to use it for to build your own WCT-related packages.

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Repository Reorganization

Brett Viren — Thu, 12 Sep 2019 18:49:32 GMT

Meet the new wire-cell-toolkit source repository.

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Containers and Continuous Integration

Brett Viren — Sun, 28 Jul 2019 16:56:36 GMT

Previously posts have discussed Singularity containers which were introduced to provide easy development environments. Recently, Docker container descriptions have been developed to introduce Travis-CI continuous integration to the Wire-Cell Toolkit.

ROOT dependency management changes

Brett Viren — Thu, 25 Apr 2019 18:32:35 GMT

A change is recently made to how WCT depends on ROOT. This dependency has been concentrated to a single, new package, not surprisingly called wire-cell-root.

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Logging

Brett Viren — Thu, 25 Apr 2019 18:13:49 GMT

Out with cout and its an error to use cerr!

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Singularity Containers for WCT and WC/LS Running and Development

Brett Viren — Fri, 17 Aug 2018 13:30:33 GMT

As part of an enjoyable tutorial on applying machine learning techniques to LArTPC given by Kazu at BNL we were introduced to Singularity containers. There's been some WCT-related work in the past using Docker containers but that fizzled due to Docker's complexity and usage barrier (even if that leads to better build performance and features). It was immediately clear from Kazu's tutorial that Singularity reduces the usage barrier and would solve a big problem for the WCT team. Namely the difficulties we have in building FNAL's art and LArSoft (LS) software ecosystem on our computers. With Singularity containers we now have a way for just one person to suffer and let many others benefit.

Signal processing now in component form

Brett Viren — Mon, 10 Jul 2017 22:16:43 GMT

Following in the footsteps of the recently announced porting of its functionality from the prototype to the toolkit the signal processing, is now usable in the form of WCT components. This is important as it paves the way to embedding the signal processing in other applications or frameworks, notably LArSoft.

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