Arch Linux

liquibyte

Member

Registered: 2007-11-11

Posts: 91

Website

Is there a way to detect -j*

Does anyone know if there is a way to detect how many processors a user has and output the number to make as a variable?  Would it hurt to make -j5 on a processor that can't do more than -j2?  I'm curious to see if anyone has had this thought.

hacosta

Member

From: Mexico

Registered: 2006-10-22

Posts: 423

Re: Is there a way to detect -j*

probably a very sucky way to do it but this should work

grep MHz /proc/cpuinfo|wc -l

janboe

Member

From: Germany

Registered: 2007-08-09

Posts: 12

Re: Is there a way to detect -j*

well, this whould detect 2 cpus at my pentium-m thinkpad. the reason is:

$ grep MHz /proc/cpuinfo
model name    : Intel(R) Pentium(R) M processor 1500MHz
cpu MHz        : 600.000

what does the job for me is:

grep "^processor" /proc/cpuinfo | wc -l

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