what does '-j8' mean in "make all -j8"

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Oct 7, 2015, 4:53:57 PM10/7/15

to Caffe Users

Following an installation guide, I saw this make command: "sudo make all -j8"

I tried google linux make commands but I can never find any documentation on -j8 in the make command

what on earth does -j8 mean here? why don't we just use "sudo make all" instead of "sudo make all -j8" ???

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Oct 7, 2015, 5:02:20 PM10/7/15

to Caffe Users

-j8 means to use 8 threads to build in parallel.

type "man make | grep jobs" in terminal to see this doc.

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Oct 7, 2015, 5:53:30 PM10/7/15

to Caffe Users

Thanks a lot!!

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