Run same executable multiple times in parallel

Question

I have an executable (e.g. test.exe) that is compiled c++/cli that can support multi threads. How can I run that same executable multiple times in parallel? The easiest way is to open several cmd windows and run test.exe from there, but that's probably no the fastest or easiest way do it.

score 4 · Accepted Answer · answered Mar 20 '14 at 23:36

4

On windows you can use

start /B <executable>

This will run the process in the background, giving back a prompt, much like bash &

--- EDIT ---

And to run a predifined number of processes, you could use FOR:

FOR %i IN (1 2 3 4 5) DO start /B <executable>

answered Mar 20 '14 at 23:36

NewbiZ

268

B is nbr of threads? – Mar 20 '14 at 23:37
1

@fmvpsenior Type start /? and see, or read the documentation for start. – Jason C Mar 20 '14 at 23:38
1

Jason why don't you google police and join them – Mar 20 '14 at 23:44
@fmvpsenior The cops don't have any jurisdiction here and it seems like a lot of training to go through just to tell you what everybody else already knows about asking questions on the internet. – Jason C Mar 21 '14 at 00:00

score 1 · Answer 2 · answered Mar 20 '14 at 23:33

1

To run 15 instances simultaneously in a bourne compatible shell:

   for i in $(yes | sed 15q); do ./test.exe & done

answered Mar 20 '14 at 23:33

William Pursell

1,593

it says "i was unexpected at this time." – Mar 20 '14 at 23:36
@fmvpsenior Given that you stated you were using cmd, that would imply you are not using bash. Also note this answer is only relevant in an environment where sed is also installed. – Jason C Mar 20 '14 at 23:36

Run same executable multiple times in parallel

2 Answers2