simstreams: Parallel Simulation Experiments on a Personal Computer

The package generalizes the sim_template program developed in the book Parallel Simulation Experiments on a Personal Computer by R. L. Eubank and Chester Ismay (CRC Press). The book's templates read the worker from a file named sim_worker.R; here the worker is an argument, so any number of workers can live side by side, and the pieces of the template (dividing the replications, building the per-process seeds and streams, timing a speed-up experiment) are available on their own.

Details

The main functions are:

• sim_template() runs a worker across n_cores processes with one independent PCG64 stream per process.

• sim_template_serial() runs the same experiment in the current process.

• make_set_up(), split_reps(), and set_worker_rng() are the building blocks, for writing your own driver.

• pi_worker(), iqr_worker(), and regression_worker() are the book's example workers.

• benchmark_cores() times a simulation across core counts.

The companion Python package is simstreams on PyPI (https://github.com/ismayc/simstreams-python). The book's code repository is https://github.com/ismayc/parallel-simulation-book, and the web edition is at https://parallel-simulation-book.netlify.app.

See also

Useful links:

• https://github.com/ismayc/simstreams

• https://parallel-simulation-book.netlify.app

• Report bugs at https://github.com/ismayc/simstreams/issues

Author

Maintainer: Chester Ismay chester.ismay@gmail.com

Authors:

• Chester Ismay chester.ismay@gmail.com

• Randall L. Eubank