Re: 'Floating point exception'
Bill Yerazunis <[email protected]>
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Date: Thu, 19 Mar 2009 10:59:53 -0400 From: Kurt Hackenberg <[email protected]> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Thomas Michael Hagen wrote: > i have also had several people using the program at the same time, > writing to the same files. > That doesn't work. There's no locking; files written concurrently are likely to be trashed. Varies with the classifier, but yeah. Multiple simultaneous learns are *unsafe*. We schemed on that quite a bit, but the killer was that statistics files on NFS servers _cannot_ be safely locked within the NFS semantics. You need a higher level server (such as what MySQL Server does with MySQL files) to be sure. Learning writes to the statistics files. Classifying shouldn't, and I think doesn't, though I don't know for sure. Classification doesn't. We specifically made sure of that- in fact, SVM and Neural both do special dances to make that not be an issue. - Bill Yerazunis ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com