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Release Notes for numarray-1.1
Numarray is an array processing package designed to efficiently
manipulate large multi-dimensional arrays. Numarray is modelled after
Numeric and features c-code generated from python template scripts,
the capacity to operate directly on arrays in files, and improved type
promotions.
I. ENHANCEMENTS
996177 Unsigned int type support limited
added Numeric C-API for more of the unsigned integer types.
986194 Add SMP threading
build/install with --smp to enable ufuncs to release the GIL during
their compute loops. You have to supply your own threads and
partition your array computations among them to realize any SMP
benefit.
1016142 CharArray eval() too slow
CharArray.fasteval() was modified to use strtod() rather than Python's eval(). This makes it ~70x faster for converting CharArrays to NumArrays. fasteval()
no longer works for complex types. eval() is still slow but works for
everything.
1008968 Add kroenecker product
II. BUGS FIXED / CLOSED
919297 Windows build fails VC++ 7.0
964356 random_array.randint exceeds boundaries
984286 max.reduce of byteswapped array
985710 buffer not aligned on 8 byte boundary
989618 Document memmap.py (memory mapping)
990328 Object Array repr for >1000 elements
997898 Invalid sequences errors
1004600 Segfault in array element deletion
1005537 Incorrect handling of overlapping assignments in Numarray
1008375 Weirdness with 'new' method
1008462 searchsorted bug and fix
1009309 randint bug fix patch
1009462 matrixmultiply (a,b) leaves b transposed
1011456 numeric compatibility byteoffset
1015896 a.is_c_array() mixed int/bool results
1016140 argsort of string arrays
See
http://sourceforge.net/tracker/?atid=450446&group_id=1369&func=browse
for more details.
III. CAUTIONS
1. This release is binary incompatible with numarray-1.0. All C extensions
which use the numarray C-API must be recompiled. This incompatibility was
an unfortunate consequence of the fix for "numeric compatibility byteoffset".
WHERE
-----------
Numarray-1.1 windows executable installers, source code, and manual is
here:
http://sourceforge.net/project/showfiles.php?group_id=1369
Numarray is hosted by Source Forge in the same project which hosts
Numeric:
http://sourceforge.net/projects/numpy/
The web page for Numarray information is at:
http://stsdas.stsci.edu/numarray/index.html
Trackers for Numarray Bugs, Feature Requests, Support, and Patches are
at the Source Forge project for NumPy at:
http://sourceforge.net/tracker/?group_id=1369
REQUIREMENTS
------------------------------
numarray-1.1 requires Python 2.2.2 or greater.
AUTHORS, LICENSE
------------------------------
Numarray was written by Perry Greenfield, Rick White, Todd Miller, JC
Hsu, Paul Barrett, Phil Hodge at the Space Telescope Science
Institute. We'd like to acknowledge the assitance of Francesc Alted,
Paul Dubois, Sebastian Haase, Tim Hochberg, Nadav Horesh, Edward
C. Jones, Eric Jones, Jochen Küpper, Travis Oliphant, Pearu Peterson,
Peter Verveer, Colin Williams, and everyone else who has contributed
with comments and feedback.
Numarray is made available under a BSD-style License. See
LICENSE.txt in the source distribution for details.
--
Todd Miller jmiller@stsci.edu
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