Hello I'm trying to run a fortran code which use LAPACK subroutines. I think I should use some points shown in the manual 5.5 Creating shared objects but it is too technical for me :-(... Could anyone help me for the procedure to do: -which part of the manual is relevant for this type of question? actually I'm speaking from writing R extensions, should I read R admin? -point 1.2 says: /Recent versions of Autoconf in fact allow an already set |FLIBS| to override the test for the FORTRAN linker flags. Also, recent versions of R can detect external BLAS and LAPACK libraries./ but nevertheless I have to include something more? or modify the script? -should I compile from SHLIB with other options or include it directly into a package and cretae a makevars or PACKAGE_LIBS...? I'm lost... The subroutine I try to use is delcols.f (http://www.maths.manchester.ac.uk/~clucas/updating/addcols.f) which calls * .. External Subroutines .. EXTERNAL DGEQRF, DLASR, DROT, DROTG, XERBLA Thank you very much!!
Using fortran code which call LAPACK subroutines
2 messages · Matthieu Stigler, Charles C. Berry
On Tue, 13 Jan 2009, Matthieu Stigler wrote:
Hello I'm trying to run a fortran code which use LAPACK subroutines. I think I should use some points shown in the manual 5.5 Creating shared objects but it is too technical for me :-(...
Be sure to look over section 6, esp. 6.17
The headers for DGEQRF, DLASR, DROT, DROTG are all in Blas.h or Lapack.h
(although you will see them in lower case).
XERBLA in libRBlas.so but is not in the R API, so if your code needs to
use it you'll have to add a header like the one in main.c or add your own
version.
I think you can probably do what you want with just
PKG_LIBS=${LAPACK_LIBS} $(BLAS_LIBS) ${FLIBS}
in Makevars
and
R CMD INSTALL <your-package>
with just the default settings.
HTH,
Chuck
Could anyone help me for the procedure to do:
-which part of the manual is relevant for this type of question? actually I'm speaking from writing R extensions, should I read R admin? -point 1.2 says: /Recent versions of Autoconf in fact allow an already set |FLIBS| to override the test for the FORTRAN linker flags. Also, recent versions of R can detect external BLAS and LAPACK libraries./ but nevertheless I have to include something more? or modify the script? -should I compile from SHLIB with other options or include it directly into a package and cretae a makevars or PACKAGE_LIBS...? I'm lost... The subroutine I try to use is delcols.f (http://www.maths.manchester.ac.uk/~clucas/updating/addcols.f) which calls * .. External Subroutines .. EXTERNAL DGEQRF, DLASR, DROT, DROTG, XERBLA Thank you very much!!
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Charles C. Berry (858) 534-2098
Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901