GPU621/Threadless Horsemen

Comparing Multi-threading in Julia vs OpenMP

Group Members

1. Tanvir Sarkar
2. Nathan Misener

Introduction: The Julia Programming Language

• used for scientific computing
• alternative to matlab
• faster than python, not as fast c, has a repl for quick edit-run debug cycles

Julia's Forms of Parallelism

• multi-threading (our focus)
• multi-core / distributed processing (like mpi?)
• coroutines / green threads

OpenMP vs Julia Code

• add code from github

OpenMP vs Julia Results

• add graphs
• recap loop interchange benefits for openmp (locality of reference)
• discuss julia storing arrays as column major, loop interchange was worse for julia
• discuss different levels of optimization

Conclusion

• summary of everything