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Why is MATLAB so fast in matrix multiplication?

I am making some benchmarks with CUDA, C++, C#, Java, and using MATLAB for verification and matrix generation. When I perform matrix multiplication with MATLAB, 2048x2048 and even bigger matrices are almost instantly multiplied. ...
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What's the Point of Multiple Redis Databases?

So, I've come to a place where I wanted to segment the data I store in redis into separate databases as I sometimes need to make use of the keys command on one specific kind of data, and wanted to separate it to make that faster. ...
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warning: incompatible implicit declaration of built-in function ‘xyz’

I'm getting a number of these warnings when compiling a few binaries: 4 Answers 4 ...
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Generator Expressions vs. List Comprehension

When should you use generator expressions and when should you use list comprehensions in Python? 9 Answers ...
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C# declare empty string array

I need to declare an empty string array and i'm using this code 9 Answers 9 ...
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DataTable: Hide the Show Entries dropdown but keep the Search box

Is it possible to hide the Show Entries dropdown but keep the Search box in DataTable? I want to always display 10 rows with pagination at the bottom along with search box but do not want to display the Show entries dropdown. ...
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Fetch the row which has the Max value for a column

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How to show git log history for a sub directory of a git repo?

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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区,为创新赋能!

Long time reader first time poster! I'm playing around with the boost::multi_index container stuff and have a rather in-depth question that hopefully a boost or C++ container expert might know (my knowledge in C++ containers is pretty basic). For reference, the boost documentation on composite keys ...
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Convert a Git folder to a submodule retrospectively?

Quite often it is the case that you're writing a project of some kind, and after a while it becomes clear that some component of the project is actually useful as a standalone component (a library, perhaps). If you've had that idea from early on, then there's a fair chance that most of that code is ...