LU Decomposition and associated documentation in MAGMA?

Open discussion for MAGMA library (Matrix Algebra on GPU and Multicore Architectures)
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Puyan Lotfi
Posts: 1
Joined: Tue May 24, 2011 4:17 pm

LU Decomposition and associated documentation in MAGMA?

Post by Puyan Lotfi » Tue May 24, 2011 4:19 pm

Hi

I am looking for the LU Decomposition code for MAGMA. I found a file dgemv_MLU.cu in the latest code base, but I can't seem to find any documentation on it in the documentation section of the website.
Anyone have any tips?

mateo70
Posts: 41
Joined: Tue Mar 08, 2011 12:38 pm

Re: LU Decomposition and associated documentation in MAGMA?

Post by mateo70 » Thu May 26, 2011 12:02 pm

Hi,

the LU decomposition is in the file src/[zcds]getrf.c

zgemv_MLU.c, as said by its name, is a variant of the GEneral Matrix-Vector mutiplication routines. You can find description of names by searching "blas refcard" in google/bing/... for BLAS functions and by looking at the LAPACK user guide for LAPACK functions.

In MAGMA, magmablas directory contains only BLAS function or auxiliary routines, and src directory contains all the LAPACK functions.

Mathieu

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