Hi, Here is what I launch in the Python interpreter : ---- import numarray simulation_file = "/path/to/my/file.bin" a = numarray.fromfile(simulation_file, 'Float32',(3144, 33, 65)) a.sum() ---- And here I get the following error : ---- Traceback (most recent call last): File "<stdin>", line 1, in ? File "/nfs/data2/picavet/workspace/softs/python/lib/python2.4/site-packages/ numarray/numarraycore.py", line 1133, in sum return ufunc.add.reduce(ufunc.add.areduce(self, type=type).flat, type=type) libnumarray.error: add_Float64_reduce: access beyond buffer. offset=25151 buffersize=17160 ---- Just after that, I execute : ---- a.sum() 588108255.50844395 a.mean() 87.206215933326803 ---- ... and as you can see I got no error the second time. The binary file I try to load is a raw file of 3144*33*64 4-Bytes float elements. In fact I just saw that if I use the shape (65,33,3144) when calling fromfile(), everything works just fine. And after having called a.sum() the first time, the shape of the array has been changed. ----

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a.getshape() (3144, 65, 33) a.sum() Traceback (most recent call last): [snip, same as above] a.getshape() (33, 65, 3144)

Any idea why I can't load an array with such a shape ? I use Python 2.4 and the latest version of numarray. Python 2.4 (#1, Jan 27 2005, 15:21:15) [GCC 3.2.2 20030222 (Red Hat Linux 3.2.2-5)] on linux2 Thanks, Vincent -- Vincent Picavet, Tel : +33 (0) 1 39 63 52 14 INRIA Rocquencourt, E-mail : [email protected] Projet CLIME http://www-rocq.inria.fr/clime