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Re: fortran blas, lapack
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Re: fortran blas, lapack

In my experience, LAPACK and BLAS in vecLib (Absoft also) seem to attach an underscore at the last in their routine names. This may be a custom in Mac application.

For example, In Absoft Fortran, I use
!DIR$ NAME(DSYEV="dsyev_")

Or, directly rewrite as
        CALL DSYEV_(...)



I'm trying to use the lapack routine 'dgesvd', I compile with the command:

xlf95 -O2 -o iterate_henon.exe iterate_henon.o -L/System/Library/Frameworks/vecLib.framework/versions/A/vecLib -Wl,-framework -Wl,veclib

and I get the error:

/usr/bin/ld: Undefined symbols:
_dgesvd
make: *** [exe] Error 1

This happens whenever I try to access blas or lapack routines. I've also tried using the -qextname option, but to no avail.

Thanks,
Aaron


email@hidden
http://www.lcv.umd.edu/~palott
LCV:    CSS 4364A 301.405.4865
Office: CSS 4102 301.405.8735
Fax:     301.314.0827

P. Aaron Lott
4364E Computer and Space Sciences Building
University of Maryland
College Park, MD 20742-4015


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ISIR, Osaka University
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 >fortran blas, lapack (From: "P. Aaron Lott" <email@hidden>)























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