On Mon, 9 May 2011, Sharpie wrote:
aftar wrote:
Hi
Can we use BLAS in R X64 for windows?
Regards
Aftar
You are already using BLAS in R as R includes its own BLAS library. On
Windows the 64-bit DLL is located at R_HOME\bin\x64\Rblas.dll.
If you are asking about swapping that out for an optimized BLAS, you will
probably have to:
1. Obtain and build an optimized BLAS such as ATLAS, Goto BLAS or Intel
MKL
2. Build your own copy of R from source that links against this new blas.
If there is a simpler way, I'm sure someone will correct me.
All you need is a copy of Rblas.dll containing the BLAS you wish to
use. You do not need to rebuild anything else in R. Some (not
recent) such Rblas.dll are made available: see the R for Windows
documentation. In addition, Ei-ji Nakama has posted (on this list)
how to use the Goto BLAS on x64 Windows.
-----
Charlie Sharpsteen
Undergraduate-- Environmental Resources Engineering
Humboldt State University
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