[SciPy-dev] Linalg2 benchmarks

Jochen Küpper jochen at jochen-kuepper.de
Thu Apr 4 23:50:00 CST 2002


One more.  Thsi is a AMD Duron 800 MHz, 128 MB.
RedHat 7.1 + gcc-3.0.4 20020120 (prerelease).
This time I am not sure what compiler was used for ATLAS, probably a
"bad" one.  Also this is an older ATLAS.

,----
| Python 2.2.1c1 (#1, Mar 20 2002, 22:13:20)
| [GCC 3.0.4 20020120 (prerelease)] on linux2
| Type "help", "copyright", "credits" or "license" for more information.
| >>> import scipy
| >>> import scipy.linalg2
| exceptions.ImportError: /usr/local/lib/python2.2/site-packages/scipy/linalg2/clapack2.so: undefined symbol: clapack_sgetri
| >>> scipy.linalg2.basic.test()
| ................................
|            Finding matrix determinant
|       ==================================
|       |    contiguous     |   non-contiguous
| ----------------------------------------------
|  size |  scipy  | Numeric |  scipy  | Numeric
|    20 |   0.77  |   1.61  |   0.75  |   1.81     (secs for 2000 calls)
|   100 |   1.63  |   3.25  |   1.63  |   4.33     (secs for 300 calls)
|   500 |   2.49  |   2.39  |   1.88  |   2.82     (secs for 4 calls)
| .
|       Solving system of linear equations
|       ==================================
|       |    contiguous     |   non-contiguous
| ----------------------------------------------
|  size |  scipy  | Numeric |  scipy  | Numeric
|    20 |   1.07  |   1.39  |   1.12  |   1.61     (secs for 2000 calls)
|   100 |   1.72  |   2.48  |   1.71  |   3.89     (secs for 300 calls)
|   500 |   2.06  |   2.22  |   1.96  |   2.60     (secs for 4 calls)
| .
|            Finding matrix inverse
|       ==================================
|       |    contiguous     |   non-contiguous
| ----------------------------------------------
|  size |  scipy  | Numeric |  scipy  | Numeric
|    20 |   1.71  |   2.58  |   1.81  |   2.75     (secs for 2000 calls)
|   100 |   4.74  |   7.09  |   4.78  |   7.99     (secs for 300 calls)
|   500 |   5.44  |   7.24  |   5.57  |   7.55     (secs for 4 calls)
| .
| ----------------------------------------------------------------------
| Ran 35 tests in 109.383s
|  
| OK
| >>>
`----

Greetings,
Jochen
-- 
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