[R] atlas for R1.1.1 and R1.2 different?

[Douglas Bates]

Marcus Eger <marcus.eger at physik.uni-marburg.de> writes:

> when I e.g. install the integrate2.2-2 package under R1.1.1 (debian2.2)
> atlas is linked into the library:
> 
> 
> Installing package `integrate' ...
>  libs
> gcc -shared -lc -shared  -o
> /usr/lib/R/library/integrate/libs/integrate.so adapt.o adapt_callback.o
> bsrl.o flfm.o nxprt.o symrl.o wht.o -L/usr/local/lib  -lf77blas -lcblas
> -latlas  -lg2c -lm -L/usr/lib/gcc-lib/i386-linux/2.95.2 -lm
>  R
> 
> 
> ...however, for R1.2.0 (snapshot ~3 days ago) it looks different:
> Installing package `integrate' ...
>  libs
> gcc -shared  -o integrate.so adapt.o adapt_callback.o bsrl.o flfm.o
> nxprt.o symrl.o wht.o -L/usr/local/lib  -lg2c -lm
> -L/usr/lib/gcc-lib/i386-linux/2.95.2 -lm
>  R
> 
> I ask because integrate behaves differently for both R-versions.

I don't think the presence or absence of atlas should affect the
results from integrate.  The atlas library is an enhanced, faster
version of the basic linear algebra subroutines (blas) and a few of
the lapack subroutines.  Unless the C code in integrate is calling
these subroutines explicitly, atlas should not affect the results.

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