On Sat, Jun 20, 2015 at 2:08 PM, Elliot Hallmark <permafact...@gmail.com> wrote:
> Sebastian, in the slow virtual-env, _dotblas.so isn't there. I only have > _dummy.so > > On Sat, Jun 20, 2015 at 3:02 PM, Elliot Hallmark <permafact...@gmail.com> > wrote: > >> Well, here is the question that started this all. In the slow >> environment, blas seems to be there and work well, but numpy doesn't use >> it! >> >> In [1]: import time, numpy, scipy >> >> In [2]: from scipy import linalg >> >> In [3]: n=1000 >> >> In [4]: A = numpy.random.rand(n,n) >> >> In [5]: B = numpy.random.rand(n,n) >> >> In [6]: then = time.time(); C=scipy.dot(A,B); print time.time()-then >> 7.62005901337 >> >> In [7]: begin = time.time(); C=linalg.blas.dgemm(1.0,A,B);print >> time.time() - begin >> 0.325305938721 >> >> In [8]: begin = time.time(); C=linalg.blas.ddot(A,B);print time.time() - >> begin >> 0.0363020896912 >> > What numpy version? <snip> Chuck
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