Hacker News Top Stories with Summaries (December 30, 2023)
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<h1> Hacker News Top Stories</h1>
<p>Here are the top stories from Hacker News with summaries for December 30, 2023 :</p>
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The art of high performance computing
Summary: Victor Eijkhout of TACC has authored a series of textbooks on High-Performance Computing (HPC). Volume 1 covers the general background knowledge for scientific computing. Volume 2 focuses on parallel programming for science and engineering, introducing modern versions of MPI and OpenMP. Volume 3 teaches modern C++17 and Fortran2008 for scientific programming. Volume 4 delves into the HPC ecosystem, including compilers, build systems, and source code control. These textbooks were developed while teaching courses at the University of Texas at Austin.
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Fake Trees: Using Indents for Simpler UIs
Summary: Fake Trees: Using Indents for Simpler UIs discusses a technique to display tree-like lists in UIs without implementing parent-child relationships. Instead of using a complex data structure, the author suggests storing the tree with id, sort, indent, and name fields. This method simplifies rendering and editing the tree, making it more like editing a list in a word processor. The author also shares an example of "namespacing" to create the appearance of a tree structure without formal relationships. However, if a tree structure is genuinely needed, it's advised to use a proper tree data model.