[R] Intel i7 utilization

Richardson, Patrick Patrick.Richardson at vai.org
Tue Oct 5 14:34:46 CEST 2010


Costas,

Take a look at this post that I found to be very helpful. The walkthrough is very easy to follow.
http://psyccomputing.blogspot.com/2010/04/compiling-64-bit-r-2101-with-mkl-in.html

I'm not sure if the i7 is supported however you can always replace
export FFLAGS="-march=core2 -O3"
export CFLAGS="-march=core2 -O3"
export CXXFLAGS="-march=core2 -O3"
export FCFLAGS="-march=core2 -O3"

with. . 
export FFLAGS="-march=native -O3"
export CFLAGS="-march=native -O3"
export CXXFLAGS="-march=native -O3"
export FCFLAGS="-march=native -O3" 

Best,

Patrick

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Costas
Sent: Tuesday, October 05, 2010 6:42 AM
To: r-help at r-project.org
Subject: [R] Intel i7 utilization

  Hello,

Is there a way to force through R the amount of the cpu's cores (or the 
cpu's utilization level)  used under Windows 7 or Linux?

Thanks,
Costas

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