Russell Haley <bog...@tamu.edu> writes: > Package: libatlas3-base > Version: 3.8.4-9 > Severity: important > > Matrix multiplication fails with an illegal instruction for matricies larger > than > 51x51. The python script detect_cpu_extensions > (http://projects.scipy.org/scipy/attachment/ticket/1170/detect_cpu_extensions) > reports use of 3dnow, which my CPU does not support.
I tried to replicate your problem using an i386 chroot on an Intel Core Duo machine (a setup which is close to yours), and I don't get a crash (even though my CPU does not have 3dnow either). The fact that the ATLAS binary contains 3dnow instructions (as well as other specific extensions) is not per se a problem: the binary incorporates several kernels for different CPUs, and the selection is done at runtime. Your crash probably indicates a bug in the selection process for your specific CPU, but this needs to be investigated more. -- .''`. Sébastien Villemot : :' : Debian Developer `. `' http://www.dynare.org/sebastien `- GPG Key: 4096R/381A7594
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