Ray assembly on only one computer

Question

[gustavojorge080]

Hello guys

I'd like to run an assembly with Ray

This program is parallel and allows to run on more than one computer, but I want to run it on my own only. The manual suggests running it as follows:

mpiexec -n 80 Ray

However, the manual does not explain how the above command works. I think this command is only for more than one computer. How should I proceed?

I will be very grateful if anyone will help me.

[Carambakaracho]

Just curious, did you download and compile it like described in the FAQ? What happens? Command not found?

Beyond that, keep in mind that Ray hasn't been actively developed or maintained for a few years. While this is a risk for every project, you place a bet on an old horse.

[gustavojorge080]

Hello, thank you for replying.

I'm using Ray for some tests and I know it's old. It is installed correctly. When I run the assembly with only "Ray" and the parameters it works normally. However, I wonder if this is the correct way to run it or if I should use "mpiexec -n 80" before "Ray".

[Carambakaracho]

mpiexec -n 80 handles the parallelization: mpiexec userguide at University Marburg:

The mpiexec command is the typical way to start parallel or serial jobs.

I never heard of the tool (with exception of the Ray manual), though that doesn't mean a thing.

Anyway, long story short: You probably don't need it. Except when you run bigger data with time constraints.

[gustavojorge080]

Ah yes, I understood, thank you for answering and helping me.