Is Parallel Execution Safe?

[Mathew Koshy]

Hi,

 

I would like to know how efficient is –j option for large projects and is it enough to specify –j option in the top level makefile? i.e does GNU Make parses all makefile in a project before beginning to build targets so that it knows the full dependency graph and can do parallel builds *safely* with the "-j" flag?

 

Thanks with regards

 

Mathew Koshy

 

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