Python Numpy On Solaris, Blas Slow Or Not Linked?

Matrix-Matrix multiplies are very slow on my Solaris install (running on a sparc server) compared to my OSX install (on a laptop!). The laptop runs 100 times faster (for matrix-mat

Solution 1:

Per mathtick's answer in the comments, the problem stems from the fact that dotblas needs ATLAS. Fortran-complied blas is not sufficient (per a comment in numpy/core/setup.py)