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Minsky

Dynamic flow systems program to simulate economic flows (ie. complex system dynamics). For a full overview, please see the Manual

Getting Started

Minsky is an open source program with prebuilt binaries available for:

Compiling Minsky from source code

Official releases are available from SourceForge. You may also obtain later releases from this Github project, as release are tagged within git.

To compile Minsky, you will need a suitable posix compliant system, with a number of prerequisites installed.

Compiling release versions of Minsky

Using the REST Service

Notes on using the REST Service.

JS frontend debugging notes

  • console.log works on minsky-electron code
  • for minsky-web code, use electronService.log, which takes a single string argument. Best trick is to use typescript template literal types, which allows embedding variable values simply within a string, eg
    this.electronService.log(`Var=${some javascript expression}`);

NB since the upgrade of electron, process is no longer available in the renderer (minsky-web) environment.

  • use green(some string) or red(some string) to colorise log output to make it easier to spot your messages. With console.log, you only need to colourise the first argument.
  • enable front end debugging tools by setting OPEN_DEV_TOOLS_IN_DEV_BUILD = true in libs/shared/src/lib/constants/constants.ts. This can be very useful in tracking down runtime errors, even syntax errors, as the renderer process fails silently.

Setting up emacs

For those using emacs (comme moi-meme), I have configured the project so that typing tsc on the gui-js directory runs the typescript compiler. A convenience Makefile is in that directory, allowing the default "make -k" command to work.

  • You will need to install tsc somewhere in your path, eg "zypper install typescript"
  • You should install the tide package. Note that M-x package-install did not work for me, I had to download the tarfiles directly from Melpa, and run M-x package-install-file to install the packages manually.

Debugging with gdb

  • You can debug an npm start session by using ps -ef|grep main.js to find the minsky process, then use the pid to attach to in gdb.
  • Alternatively, you can create an executable with npm run export:package:linux and open it with gdb gui-js/dist/executables/linux-unpacked/minsky.
  • For unit tests, cd to the directory containing jest.config.js (eg gui-js/libs/shared), then run (eg)
   gdb `which node`
   r /usr/local/bin/jest src/lib/backend/minsky.test.ts

Regular jest CLI arguments can be provided. You will need to install the jest package (npm install jest perhaps?)

Profiling

Unfortunately gperftools do not work with the JS frontend. Indeed, most of the time minsky will crash under profiling. For now, profiling requires the use of the old Tk version of minsky.

However, if you build the C++ source (actually only addon.cc necessary) with the TIMERS=1 make flag, this enables profiling of the backend commands, which is printed as a summary table on application exit.

Roadmap

  • See planned features
  • Emscripten classdesc descriptor to support Minsky in a browser.