This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).
Matrix multiplication is a mathematical operation that defines the product of
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Translations: (No guarantee that the translations are up-to-date)
I use Bash’s PROMPT_COMMAND variable:
The value of the variable PROMPT_COMMAND is examined just before Bash prints each primary prompt. If PROMPT_COMMAND is set and has a non-null value, then the value is executed just as if it had been typed on the command line.
The source code should be pretty straight forward, but if not, please ask in the comments. Put this in your .bashrc or similar:
# per-directory Bash history
| // From http://www.tannerhelland.com/4435/convert-temperature-rgb-algorithm-code/ | |
| // Start with a temperature, in Kelvin, somewhere between 1000 and 40000. (Other values may work, | |
| // but I can't make any promises about the quality of the algorithm's estimates above 40000 K.) | |
| function colorTemperatureToRGB(kelvin){ | |
| var temp = kelvin / 100; |