Development

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2015

May 27, 2015

Updates

Items to Discuss

May 20, 2015

Updates

Items to Discuss

  • [RR] Reviving the DAT, integrating scripting & porting UV-CDAT!
    • On GitHub (issues)
    • Merging 2 years of development taking longer than expected, but getting there. The plan is to get the patches in VisTrails and never fork again, we never want to get in UV-CDAT's situation (and don't need to).
    • VTK cell works fine on Linux but there was flickering on Mac & Windows before; still issues on Mac (Windows status unknown)
    • Can get a VCS plot soon (but will need VTK cell fix)
    • Integrate in UV-CDAT's build system (so we have cdms, VCS, ...) -> RR can do this, low priority
    • How do we integrate scripting?
      • We want to be able to seamlessly make changes to a plot by changing Python code
      • Define new plots by entering Python code without writing modules/packages?
  • [RR] UV-CDAT needs #1073, please take a look
  • [RR] Subworkflow issues
    • #1065: missing attribute (fixed)
    • #1066: groups in subworkflows were ignored when finding dependencies (fixed)
    • #725: "upgrade subworkflow" button not popping up (fixed); also, namespace issue
    • #1071: subworkflows don't go through upgrades
  • [RR] #1074: can't load and edit a single pipeline if upgrade happen

May 13, 2015

Updates

  • [RR] Test skipping whitelist (#1069) -- low priority
  • [RR] Custom matplotlib modules can't be compatible with both 2.1 and 2.2 (#1067); should be fixed for ALPS (#1070)

Items to Discuss

  • [RR] UV-CDAT needs #1073, please take a look
  • [RR] Subworkflow issues
    • #1065: missing attribute (fixed)
    • #1066: groups in subworkflows were ignored when finding dependencies (fixed)
    • #725: "upgrade subworkflow" button not popping up (fixed); also, namespace issue
    • #1071: subworkflows don't go through upgrades
  • [RR] #1074: can't load and edit a single pipeline if upgrade happen

May 7, 2015

Updates

  • [RR] Export/import workflow to Python working!

Items to Discuss

  • [Claudio] UV-CDAT
    • The UV-CDAT project is the biggest user base of VisTrails
    • VisTrails package management provides a lot of friction towards people plugging in their code
    • Need to make it easy to integrate your random Python scripts in the system without having to deal with all the boilerplate, at least in the first step
    • [RR] argues that modules are still good; UV-CDAT shouldn't move towards a purely script-based backend
    • [RR] export/import with Python could reduce a lot of that friction by allowing 1) to edit workflow as Python 2) to open up boxes automatically if needed code doesn't match actual modules
    • ...

April 29, 2015

Updates

Items to Discuss

  • [RR] Abstractions subworkflows status (tickets)
  • [RR] matplotlib compatibility (2.1 & 2.2), #1067
    • RR to try and fix ALPS matplotlib modules

April 22, 2015

Updates

  • 2.2.0 has been released!
  • Windows issue (via email from Ryan)
    • issue with manifest file (may be a new file in VTK6?)
    • Tommy has regenerated new Windows builds
  • Binaries, pypi, and conda released
  • [RR] Export as script
  • Python sources using VTK need to switch to SetInputData (users should be aware of this)

April 15, 2015

Updates

  • Ready for 2.2.0 (apart from binary/deps issues)
    • Missing some libs (scikit-learn, tej, tdparser, SQLAlchemy+connectors
    • Windows: runvistrails.py is no longer used, so the PATH is wrong
    • Windows: pip is broken, but it probably wouldn't work anyway because of permission issues (disable this?)
  • Queries, upgrades and getPipeline() usage (#1054)
    • Getting a pipeline with getPipeline() is not safe: it might return an invalid pipeline
    • This is used in many places throughout the code, like queries
    • Upgrading would require going through the controller, but that creates new actions
  • [TC] Avoid copying a module's output if it's used as input by exactly one downstream module (#1060) (useful for big numpy arrays you can update in-place)

April 8, 2015

Updates

  • [DK] Merged RR's changes for output modules (1012 and 1013)
    • RR will merge remaining changes, then create v2.2 branch!

Items to Discuss

  • BNL need numpy array to VTK image
    • Looks like VTK has some helpers for this
    • We will help if issues arise
    • Will contribute back to VisTrails package
  • Upgrade issue: #1017
    • Automatic upgrades should happen between versions of provided upgrades
    • Our existing upgrades work around this so it doesn't need to be 2.2.0
  • Corner-case VTK modules
    • No longer need VTKCell input port, so don't interfere with registry and API anymore
    • Still work weirdly, people probably shouldn't use them
    • But we have lots of clunky modules since we wrap the whole of VTK; some people might rely on this and know how to use them, let's keep them anyway
    • Ready for 2.2.0

April 1, 2015

Updates

  • [RR] UV-CDAT: bugfixing for 2.2, long-term plans: implement scripting import/export in VisTrails, port to UV-CDAT
  • Possibly, try to move to regular VisTrails to use new features

Items to Discuss

  • 2.2 release: nothing much is pending anymore, release next week?
    • [TE] vtkExporter classes #1032
    • [RR] Hiding upgrades in version tree might make it (or might be 2.2.1 so we can test it out) #949
    • Output modules changes to go in
  • add note to documentation about order of parameters in VTK
  • add issue about exporter upgrades if not already there

March 25, 2015

Updates

Items to Discuss

March 18, 2015

Updates

  • [TE] VTK6 works

Items to Discuss

  • [RR] Release v2.1.5 with backported tabledata?
    • MTA example needs updated tabledata (for JoinTables)
    • Google Maps package still not available
  • [RR] Work torward v2.2.0?
    • changes:
      • new persistence
      • API changes
      • output module changes (upgrades?), maintain cells but try to upgrade
      • not wrapping stuff
      • VTK6? yes
      • JobSubmission stuff?
      • relabeling for upgrades #949
    • makes sense, needs the tree view code to be updated, check selection
    • See 2.2 checklist
  • Discussion of #1016
    • plumbing between outputs and output modes, how to define a mode that works for many outputs without writing for each output?

March 11, 2015

Updates

  • [RR] persistent_archive done; merge? (#755)
    • note about the focus events for widgets
    • TE be aware of file_archive for future binaries that include persistent_archive
  • [TE] New VTK package finished

Items to Discuss

  • [RR] Unmark UV-CDAT/VisTrails as a fork of VisTrails/VisTrails? (see last week; decision needed)
    • RR email to JF about this
    • yes; email sent to Github
  • [RR] Switching order of output ports (#1006)
    • added port specs are sorted at a separate spot (Module.*_port_specs properties) than those in the registry (which are sorted in the registry), but those two lists are just combined without respect to sort keys
    • need to determine whether the two lists should be merged or remain distinct
    • should make sure that order of input ports and output ports makes parallel connections for things with same order
    • DK suggests breaking backward compatibility here: workflows still run, can fix easily if a problem in an existing package.
  • [RR] Question about output modes (#1007), how to integrate in API (#24)
    • Should ImageFileMode be removed? ("image" is not a mode, "file" is)
    • ImageOutput missing?
    • Feel free to change how formats works
  • [TE] Test suite segfaults on Fedora 17 virtualbox. Install newer version? (Support ended in 2013)

March 4, 2015

Updates

  • [TE] VTK wrapper
    • Works on VTK 5.10
    • Still need to test VTK 6
    • New general wrappers for python functions and classes

Items to Discuss

  • [RR] Unmark UV-CDAT/VisTrails as a fork of VisTrails/VisTrails?
  • [RR] What about #991?

February 25, 2015

Updates

Items to Discuss

  • [TE] vtkviewcell for infovis support, can we unify with VTKCell?
    • need to test this
  • [TE] vtk wrapping
    • Mostly finished
    • VTK 5.10 produce incorrect results with old wrapping
      • Old wrapper is based mostly on VTK 4
      • Most vtk_examples affected
      • [1]
      • should be able to upgrade from SetInput to SetInputData (need to drop GetOutput and replace with self ports)
      • can we change vtkInstance to just return self and not wrap things
    • terminator example not working under 5.8?
  • How does VTK wrapping fit into general wrapping framework?
  • [RR] new persistence package

February 18, 2015

Updates

  • [RR] New VisTrails API and IPython integration (#24)

Items to Discuss

  • [TE] VTK wrapping
    • Benchmarking vtk package
      • Old: 24.7 seconds
      • New: 10.5 seconds (Except first time that adds 8 sec)
        • The parsing that calls is_abstract (that tries to instanciate all vtk classes) is now only run the first time.
        • get_items_from_sigstring takes 2 seconds, maybe we can use a lookup dict for already computed sigstrings?
    • Now using a general python function wrapper
      • VTK classes are wrapped into python function that does not depend on vistrails
      • VTK functions can be executed without vistrails
      • The spec maps functions into vistrails modules, but can also describe wrapping
      • A general python function wrapper that supports
        • kwarg inputs
        • single, list, dict outputs
        • callback for progress reporting
        • temporary file generator for using FilePool
        • optional output generation
      • Creating specs:
          • Create spec by hand
          • Auto-create spec outline (TODO) and manually finish it
          • Dynamically create spec (VTK)
          • Implement documentation wrappers (Can use scikitlearn wrapper to wrap numpydoc) (TODO)
          • Classes as bad functions needs to be wrapped in new functions before they are wrapped. This is different for each package.
            • Classes is hard: Like VTK, and matplotlib. Scikit-learn does still not wrap classes
          • Spec diffing and patching could be done using code from matplotlib.
    • Still needs upgrades from old VTK package
      • Is it possible to dynamically wrap functions, e.g, you see a SetFunc and just remove the 'Set' prefix. Or do you need to create a complete mapping?

February 11, 2015

Updates

  • Update from Friday's meeting
    • discussed VisTrails internals
    • discussed wrapping
      • xml discussion, hard to modify because tied to db code
      • TE has made it possible to add the schema-defined attributes to the intermediate representation
      • higher-level operations on the port specs
    • make sure the simple case works
      • [JF] take a simple package with documentation and figure out what the base case for wrapping is

Items to Discuss

  • [TE] VTK wrapping
    • Dynamic loading works
    • Reading XML is fast enough, but unserializing data is slow
    • Working on patterns for patching
    • Matplotlib has many advanced patterns like argument ordering, nested arguments, alternateSpecs, output types.
      • Having all this in a general wrapper might confuse users?
    • [RR] Delay module (except for identifiers) until you need it---e.g. don't deal with port specs, etc. until necessary
  • Scripting Support #950
    • [RR] Issue with getting code from modules
    • Design a simple solution
    • [JF] Couldn't you use modules as black boxes without conversion, just to call into modules/subworkflows easily from e.g. IPython?
      • [RR] This is a job for the API, and a very separate use case. See #24

February 4, 2015

Updates

Items to Discuss

  • Wrapping
    • Format to use? Currently XML (like current matplotlib)
      • JSON and YAML have simple "to python dictionary" methods
      • But don't stream
      • YAML a lot easier for humans
    • [DK] vtk-new-package also changes parameter names, creates enumerations
      • intermediate schema needs to be extensible
      • packages will want to store there specific infos for compute() method generation
      • also might have specs-altering info, like matplotlib's alternateSpec
    • representation to code , registry already has schema for some aspects
    • [RR] We might want to see if Module subclasses can be created lazily
      • no need to create all the classes just to register them in the registry and never actually use most of them
      • future effort
  • [RR] Where should VisTrails packages live?
    • tej installs as 'vistrailspkg.tej', TE installed it as 'userpackages.tej'
    • Currently, standard packages are 'vistrails.packages.', user packages are 'userpackages.' and packages loaded through pkg_resources might be anything
    • [RR] Use 'vistrailspkg.' everywhere?
    • Long-term effort to simplify package distribution/installation (and have VisTrails get them automatically?)

January 28, 2015

Updates

  • T. Caswell to come visit on Fri 6 to discuss wrapping work

Items to Discuss

  • [TE] New VTK wrapping
    • Current code by DK seems a good deal faster
    • Generates XML that can be patched/tweaked, generates Python code from it, VisTrails only loads generated Python code
    • RR would rather have VisTrails load intermediate representation (= XML) directly, wants to make sure this is not slower
    • The goal is to turn the intermediate step into something generic that would be used for every wrapped package (vtk, numpy, matplotlib, sklearn, java) instead of each having its own
    • TC has its own code at github:VTTools which parses numpy docstrings and generates modules, doesn't yet handle classes or persist anything
  • Web crawler
    • Right now, TE starts jobs for "start crawler", "stop crawler", "install classifier"
    • RR would rather have the crawling be a job as far as VisTrails and tej are concerned
    • The whole thing would be one pipeline: load examples, train classifier, start crawler [check for job, kill previous one, upload model, start processes], get snapshot, visualize
      • Need some support in tej and job submission system: long-running jobs, stop a job (wait for it to finish?), restart a job even though results are cached

January 21, 2015

Updates

Items to Discuss

  • [RR] Unified wrapping method discussion #991
    • TE to work on reusable method with intermediate representation, starting with VTK
  • [RR] Examples for scikit-learn: JF has an old example using Weka with parameter exploration (not currently in source tree)
    • AM's examples are enough
  • [AM] scikit-learn package is done, merge it in? #955
    • RR will merge
  • [RR] What should copyright headers say? #994
    • Let's keep everything in there: Utah/Poly/NYU

January 14, 2015

Updates

  • [TE] Working on classifier
  • [RR] Scripting integration, work in progress

Items to Discuss

  • [RR] Unified wrapping method discussion (#991)
    • Let's talk next week, [AM] and [DK] are not here

January 7, 2015

Updates

Items to Discuss

  • make sure that we address critical issues, questions, and pending review branches in a timely manner
  • scripting support
    • [RR] no issues if we want to just keep annotations in the generated code to allow the link back to a workflow
    • [RR] can translate from workflow to script, working on script to workflow
    • will work for parameter value changes, structural changes require changes to the annotations
    • need to publish best practices here
    • would be cool to do looping in scripts (easier interface than with workflows)
  • notebook support (convert form notebook to workflow)
    • RR will sync with FC on this
  • Issue with console in built-from-scratch
    • [TC] iPython rearranged some of the completion stuff in 2.2 and 2.3
    • binary has old version of iPython -> 1.0.0, should we update?
  • [TC] automated wrapping of numpy and scipy
    • discovered a bunch of malformed documentation in numpy and scipy
    • has github repo for vistrails tools
    • example modules wrap a bunch of R stuff (not baked in, just how things are)
    • will be pushing wrapping logic up
    • port names forbidden (window and domain)
    • have an import hook to get from yaml directly to VisTrails Modules
    • should work for any python modules with well-formed numpy docstrings.
  • [Action] should make it clear in documentation that Constant now means serializable not that the value doesn't change (e.g. List)
  • [TC] might be interesting to try to build components of matplotlib and accumulate in figure (long-term project, but thinking about how this might work)
  • [TE] build and build scripts
    • completely automatic, buildbot
    • need to set the build machines for the environment we want for the binary
    • would virtualenv work here?
    • [TC] anaconda can pin versions, potential path to test different configurations
    • Q: upload nightly binary builds? A: makes sense, make sure they are well-labeled
  • sourceforge stats: e.g. http://sourceforge.net/projects/vistrails/files/vistrails/nightly/vistrails-src-nightly.tar.gz/stats/timeline?dates=2014-01-01+to+2015-01-07
  • package issues (see Remi's message)
  • [TE] Scope of tej
    • Support single ssh commands?
    • Queue can be used as a remote machine (crawler is using queue.call*)
  • SourceForge stats: http://sourceforge.net/projects/vistrails/files/vistrails/nightly/vistrails-src-nightly.tar.gz/stats/timeline?dates=2014-01-01+to+2015-01-07

Older meetings

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