Re: Who uses clapack?
From: Kamaraju Kusumanchi (kk288_at_cornell.edu)
Date: 12/10/04
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Date: Fri, 10 Dec 2004 13:58:19 -0500
Victor Eijkhout wrote:
> The authors of lapack/scalapack are starting to work on a new release of
> these packages. One of the things we want to address is the sillyness
> that C users, instead of linking to the binaries of the Fortran version,
> use an automatically translated C version.
>
> Therefore we'd like to know precisely what the reasons for this are.
>
> Naively one would say, compile the Fortran version, append an underscore
> (when appropriate) to routine names, and just link those libraries to
> your object files.
>
> What are the gotchas, and what are the real stumbling blocks here?
> Please spell it out in as much detail as you can muster. This situation
> really needs to improve.
>
> V.
The following are just my opinions based on my experience.
One reason is, the clapack's installation instructions are crystal
clear. I mean it is very easy and gives step by step instructions as to
what to do.
But on the other hand, lapack gave me hell of a trouble while compiling.
Compiling with intel compiler gave some IEEE errors (cant recall them
exactly, but if you are interested, they could be found on c.l.f
archives) The lapack/lapack95 instructions are cryptic and probably can
be understood only by experts. But now I have intel mkl library
available for free. So I dont have to compile them myself.
raju
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