[Numpy-discussion] dot and MKL memory

Hi,

If I build Python 2.7.2 and numpy-1.9.1 and run the following script

import numpy c = numpy.ones((500000, 4)) mat = numpy.identity(4) r = numpy.dot(c, mat)

the evaluation of the 'dot' increases the memory by app. 35 MB.

If, in addition, I build numpy-1.9.1 with MKL support, and run the script, the evaluation of the 'dot' increases the memory by app. 450 MB.

Is the expected?

Best regards,

Mads

specs:

Ubuntu 12.04 ifort (IFORT) 14.0.1 2013100 gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)