octave and threading libraries on SMP

[Joan Picanyol]

Hi,

I'm trying to get octave to use both my CPUs, so far to no avail. Octave
insists on linking to the non_threaded libraries:

joan at calvin:~(0)$ ldd /usr/local/bin/octave-2.1.57
/usr/local/bin/octave-2.1.57:
        liboctinterp.so => not found (0x0)
        liboctave.so => not found (0x0)
        libcruft.so => not found (0x0)
        libalapack.so.1 => /usr/local/lib/libalapack.so.1 (0x28085000)
        libcblas.so.1 => /usr/local/lib/libcblas.so.1 (0x28488000)
        libf77blas.so.1 => /usr/local/lib/libf77blas.so.1 (0x284b2000)
        libatlas.so.1 => /usr/local/lib/libatlas.so.1 (0x284d1000)
        libreadline.so.5 => /lib/libreadline.so.5 (0x28de1000)
        libncurses.so.5 => /lib/libncurses.so.5 (0x28e10000)
        libg2c.so.1 => /usr/lib/libg2c.so.1 (0x28e52000)
        libm.so.3 => /lib/libm.so.3 (0x28e70000)
        libstdc++.so.4 => /usr/lib/libstdc++.so.4 (0x28e8a000)
        libc.so.5 => /lib/libc.so.5 (0x28f67000)

even though the threaded versions are there:

joan at calvin:~(0)$ ls /usr/local/lib/lib{cblas,alapack,atlas,f77blas}_r*
/usr/local/lib/libalapack_r.a    /usr/local/lib/libcblas_r.a
/usr/local/lib/libalapack_r.so   /usr/local/lib/libcblas_r.so
/usr/local/lib/libalapack_r.so.1 /usr/local/lib/libcblas_r.so.1
/usr/local/lib/libatlas_r.a      /usr/local/lib/libf77blas_r.a
/usr/local/lib/libatlas_r.so     /usr/local/lib/libf77blas_r.so
/usr/local/lib/libatlas_r.so.1   /usr/local/lib/libf77blas_r.so.1

Not even changing the ${BLAS_LIBS} in the Makefile to the *_r variants seems to
have any effect:

  Installation prefix:  /usr/local
  C compiler:           cc  -mieee-fp  -Wall -W -Wshadow -O -pipe -march=athlon-
mp -I/usr/local/include
  C++ compiler:         c++  -mieee-fp  -Wall -W -Wshadow -O -pipe -march=athlon
-mp
  Fortran compiler:     f77 -O
  Fortran libraries:     -L/usr/local/lib -L/usr/lib -lg2c -lm
  BLAS libraries:       -lalapack_r -lcblas -lf77blas -latlas
  FFTW libraries:
  HDF5 libraries:
  MPI libraries:
  LIBS:                 -lreadline  -lncurses -lm
  Default pager:        less
  gnuplot:              gnuplot

  Do internal array bounds checking:  false
  Build static libraries:             true
  Build shared libraries:             true
  Dynamic Linking:                    true (dlopen)
  Include support for GNU readline:   true

Watching top during simulations shows that only one CPU is being used,
which is quite fustrating. Any hints on how to get it to use both CPUs?

tks
-- 
pica