[SciPy-dev] installation and linalg2 bench

[arnd.baecker at physik.uni-ulm.de]

Hi,

I successfully installed a CVS scipy (cvs_version = (1, 68, 1455, 3473))
- everything went quite smooth
(I found site.cfg very convenient!).
There were just 2
  [[Installation was on a debian woody, self-compiled
    Python 2.2.1c2 (#1, Apr  4 2002, 18:54:47)
    [GCC 2.95.4 20011006 (Debian prerelease)] on linux2,
    self-compiled ATLAS 3.3.14, CVS Numeric 22.0a0 ]]


Running
scipy.test(10)
gives the following messages, which I find a bit irritating
(though they might not be crucial ?)

1.)
 creating test suite for: scipy.common
   !! FAILURE building test for  scipy.common
    <string>:1: ImportError: No module named test_common (in ?)
2.)
 creating test suite for: scipy.stats.stats
   !! FAILURE building test for  scipy.stats.stats
    <string>:1: ImportError: No module named test_stats (in ?)
3.)
[...]
1st run(Numeric,compiled,speed up):  2.3194, 1.0310, 2.2498
2nd run(Numeric,compiled,speed up):  2.4009, 0.9876, 2.4310
.warning: specified build_dir '_bad_path_' does not exist or is or is not
writable. Trying default locations
...warning: specified build_dir '..' does not exist or is or is not
writable. Trying default locations
.warning: specified build_dir '_bad_path_' does not exist or is or is not
writable. Trying default locations
...warning: specified build_dir '..' does not exist or is or is not
writable. Trying default locations
....................................
test printing a value:2
../home/abaecker/.python22_compiled/sc_9a25bc84add18fe6c75501f6b01bd84e1.cpp:
In function `struct PyObject * compiled_func(PyObject *, PyObject *)':
/home/abaecker/.python22_compiled/sc_9a25bc84add18fe6c75501f6b01bd84e1.cpp:418:
no match for `Py::String & < int'
/home/abaecker/PYTHON/lib/python2.2/site-packages/scipy/weave/CXX/Objects.hxx:390:
candidates are: bool Py::Object::operator <(const Py::Object &) const
/home/abaecker/PYTHON/lib/python2.2/site-packages/scipy/weave/CXX/Objects.hxx:1433:
bool Py::operator <(const Py::SeqBase<Py::Object>::const_iterator &, const
Py::SeqBase<Py::Object>::const_iterator &)
/home/abaecker/PYTHON/lib/python2.2/site-packages/scipy/weave/CXX/Objects.hxx:1426:
bool Py::operator <(const Py::SeqBase<Py::Object>::iterator &, const
Py::SeqBase<Py::Object>::iterator &)
........
[...]
-----------------------------------------------------------------------
Ran 304 tests in 859.017s


4.) Finally I did the benchmarking
(note that this is on a PII, 350 MHz ... ;-)


>>> import scipy.linalg2
>>> scipy.linalg2.basic.test()
................................
           Finding matrix determinant
      ==================================
      |    contiguous     |   non-contiguous
----------------------------------------------
 size |  scipy  | Numeric |  scipy  | Numeric
   20 |   1.14  |   2.47  |   1.13  |   2.84     (secs for 2000 calls)
  100 |   2.21  |   8.24  |   2.18  |   9.58     (secs for 300 calls)
  500 |   2.06  |  11.81  |   2.05  |  12.34     (secs for 4 calls)
.
      Solving system of linear equations
      ==================================
      |    contiguous     |   non-contiguous
----------------------------------------------
 size |  scipy  | Numeric |  scipy  | Numeric
   20 |   1.70  |   2.09  |   1.67  |   2.47     (secs for 2000 calls)
  100 |   2.21  |   7.67  |   2.23  |   9.19     (secs for 300 calls)
  500 |   2.01  |  11.55  |   2.03  |  12.24     (secs for 4 calls)
.
           Finding matrix inverse
      ==================================
      |    contiguous     |   non-contiguous
----------------------------------------------
 size |  scipy  | Numeric |  scipy  | Numeric
   20 |   2.22  |   4.27  |   2.25  |   4.53     (secs for 2000 calls)
  100 |   5.78  |  23.75  |   5.77  |  24.99     (secs for 300 calls)
  500 |   5.84  |  46.16  |   5.85  |  46.57     (secs for 4 calls)
.
----------------------------------------------------------------------
Ran 35 tests in 294.343s


Best,

Arnd