On my G5-10.5 mkoctfile -p BLAS_LIBS returns
/sw/lib/liblapack.dylib /sw/lib/libf77blas.dylib
while on my G4-10.4 it returns a blank line.
I have rebuild octave324-atlas on the G4 and noticed in the configure stage:
...
checking whether CDOTU is called correctly from Fortran... no
checking whether ZDOTU is called correctly from Fortran... no
configure: WARNING: A BLAS library was detected but found incompatible with
your Fortran 77 compiler. The reference BLAS implementation will be used. To
improve performance, consider using a different Fortran compiler or a switch
like -ff2c to make your Fortran compiler use a calling convention compatible
with the way your BLAS library was compiled, or use a different BLAS library.
...
which probably explains the missing BLAS_LIBS and the gsl-oct324 failure.
I have rebuild atlas (which requires gcc44) and octave to no success.
Looking at the confi.log file I found that the test
program main
double complex zdotu,a(1),b(1),w
external zdotu
a(1) = dcmplx(1d0,1d0)
b(1) = dcmplx(1d0,2d0)
w = zdotu(1,a,1,b,1)
if (w .ne. a(1)*b(1)) stop 1
end
compiled with
gfortran-fsf-4.6 -g -O3 -ff2c -L/sw/lib conf.f90 /sw/lib/libf77blas.dylib
-lhdf5 -lz -lm -lGraphicsMagick -lmetis
gives a segmentation fault at runtime, while it succeeds when compiled with
gfortran-fsf-4.6 -g -O3 conf.f90 -L/sw/lib -lcblas -lf77blas -latlas -lhdf5 -lz
-lm -lGraphicsMagick -lmetis
On the G5 I get a "STOP 1" with the former and a pass with the later.
(on x86_64-apple-darwin10.8.0 I get a bus error whatever I tried).
What could be the next move?
TIA
Dominique
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