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0 pointssocialdemocrat4y ago0 comments

Hehehe oh yeah, I almost forget about that because I stopped years ago bothering to actually make the tools into separate files that I start from the shell. It is more like Julia is my shell. I'll just have packages with common tools I use and launch them by calling functions from the REPL.

I'll just have packages for doing doing image file conversions in batch, modifying source code, changing configuration files etc.

Actually come to think about it, I used to have shell scripts in a pipeline to build an application for security. We had to obfuscate the source code and stuff like that. When I rewrote to Julia it all ran much faster. Even if there was a startup time, the workload was heavy enough that the higher performance of Julia easily outperformed bash.

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chaxor4y ago· 2 in thread

Aren't many bash programs written in C? So this is implying Julia is somehow faster than C? Obviously that can't quite be true, but I can definitely imagine that the algorithms implemented in Julia could be fast faster than other algorithms - since the community has such a heavy influence of very hardcore mathematicians that have a string stress towards speed. Probably most of the algorithms in Julia are state of the art and push the boundaries on time complexity.

socialdemocratOP4y ago

I was talking about bash scripts. But outperforming C with Julia is perfectly possible. Julia JIT compilation means you can remove overhead of a lot of function calls which C cannot do. A simple example would be sort taking a function pointer doing object comparison.

High level functional style code with things like map and filter can frequently be JIT compiled to optimal machine code.

Fortran is considered faster for numerical code than C and well polished Fortran libraries like BLAS is already getting outperformed by Julia.

For typical systems programming with need to tight control of memory and real time system C will still have the edge. But for anything crunching lots of numbers like data analysis or machine learning Julia will likely outperform everybody else.

KolenCh4y ago

Any reference to how Julia outperform Fortran in BLAS? I thought it is/was calling existing BLAS libraries?

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