April 2019 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Comment on: Pharo performance issues
by Marcus Denker April 3, 2019

April 3, 2019

> > I spent quite some time with Alexandre Bergel's NeuralNetwork implementation and stumbled across many implementations that cause general performance issues. > > While, I "fixed/altered" only those parts affecting my code, I would offer to search trough the image an alter the parts similar to those already altered. > > In such case that somebody would like to move a greater amount of code towards review and integration into current development how would the process of such contribution look like? > > The regular path of reporting bugs, or just forking on Github and pull request? The best is to first report an issue, then do a pull request. There is a pointer to a tutorial here: https://github.com/pharo-project/pharo/blob/Pharo8.0/CONTRIBUTING.md <https://github.com/pharo-project/pharo/blob/Pharo8.0/CONTRIBUTING.md> (If you get stuck somewhere, please tellâ¦ I think it might needs some update for Pharo8, it is on my TODO to check it carefully) > > I am extremely busy right now, but during the nights I could slowly attempt to work some performance issues out. > That would be great! Marcus

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Comment on: Pharo performance issues
by Sebastian Heidbrink April 2, 2019

April 2, 2019

Hi! A friend of mine just just pointed this entry out to me https://pharoweekly.wordpress.com/2019/04/02/about-performance-issues/ I spent quite some time with Alexandre Bergel's NeuralNetwork implementation and stumbled across many implementations that cause general performance issues. While, I "fixed/altered" only those parts affecting my code, I would offer to search trough the image an alter the parts similar to those already altered. In such case that somebody would like to move a greater amount of code towards review and integration into current development how would the process of such contribution look like? The regular path of reporting bugs, or just forking on Github and pull request? I am extremely busy right now, but during the nights I could slowly attempt to work some performance issues out. Kind wishes, Sebastian

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[ANN] Pharo Workshops in Switzerland: April 30 to May 3rd
by Marcus Denker April 2, 2019

April 2, 2019

Hi, Kertyx is organising a Workshop Series, the Digital Healthcare Innovation Workshops Part of this series will be a workshop around Pharo: Interactive and efficient ways to build technology stacks for experienced developers. - Where? Lavigny/Switzerland - When? April 30 to May 3 - Event web site: http://kertyx.events â¢ Workshop 1 â Introduction to Pharo (Marcus Denker) â¢ Workshop 2 â Web development using Seaside (Cyril Ferlicot) â¢ Workshop 3 â New Integrated Development Environment (IDE) â Glamorous Toolkit (Tudor Girba) Registration via eventbrite is available for all 3 workshops independently at http://kertyx.events Marcus

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Google Protobuf - Small update and parsing a tensorflow GraphDef
by Holger Freyther April 2, 2019

April 2, 2019

A short update on the current state of my implementation. I heard there is interest to use it to parse tensor flow models. 0.) Load the BaselineOfProtobuf from https://github.com/zecke/pharo-protobuf 1.) Generate code Use the Google protoc to generate a descriptor set: $ protoc -o tf.pb --include_imports tensorflow/core/framework/graph.proto And then use this descriptor to generate code: | descriptor nameTable generator | descriptor := GPBFileDescriptorSet materializeFrom: 'tf.pb' asFileReference binaryReadStream. nameTable := GPBTypeNamesVisitor new. nameTable customPrefix: 'TF_'. generator := GPBGeneratingVisitor new typeNames: nameTable; targetPackage: 'Tensorflow-Definitions'. descriptor visit: nameTable. generator visit: descriptor. 2.) Parse a model (e.g. the inception v3 model) TF_GraphDef materializeFrom: 'inception_v3_2016_08_28_frozen.pb' asFileReference binaryReadStream 3.) ??? I guess load it into tensorflow? I am not sure if the endianness for the Float is correct (if not the weights are wrong so please be careful and have a look). There are still plenty of TODOs left. JSON and TextProto parsing needs to be implemented. Working on the official regression suite is needed as well. Strict/Non-strict modes for parsing are needed as well.

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How are you supposed to recover code in Pharo - epicea seems half finished?
by Tim Mackinnon April 1, 2019

April 1, 2019

Hi - Iâve been hit by this a few times now, and Iâm scratching my head how its supposed to work. I moved some classes to another package and tag (but sometimes Pharo does this badly and rather than a sub-tag it makes a new top level package with a hyphen in it). So I then committed my changes to git, and thought nothing of it - but the flaw here is that with a new top package my classes didnât get commited!!! I then changed branch and started something else, but later saw this top level package and thought it was an Iceberg blip (it sometimes doesnât reload packages properly when changing branches) - and so I deleted those classes. A few minutes later it suddenly - it dawned on me Oh noâ¦.. Ok fine - we have changes tech right? But with no .changes file, we use epicea ????? But hereâs the frustration - I know the classes, but they are thousands of lines down the changes list now (Iâve changed branch and loaded new code). Where is the filter by specific class? And gosh its darn slowâ¦. Iâm missing the text editable .changes file right now as this doesnât work so well to get to a specific place to recover methods, comments etc. Am I doing something wrong? Missing something obvious? Tim

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