On Fri, Feb 27, 2009 at 3:49 PM, Marco Atzeri <marco_atz...@yahoo.it> wrote: > > --- Ven 27/2/09, Jaroslav Hajek <high...@gmail.com> ha scritto: > >> Da: Jaroslav Hajek <high...@gmail.com> >> Oggetto: [OctDev] parallel processing in Octave >> A: "octave-forge list" <octave-dev@lists.sourceforge.net> >> Data: Venerdì 27 febbraio 2009, 14:03 >> hi all, >> >> in case anyone is interested, I committed today into the >> "general" >> package an initial m-file implementation of parcellfun. >> parcellfun is supposed to be able to evaluate a given >> function for >> multiple sets of input arguments using multiple processes. >> >> Given N, the function spawns N subprocesses using fork (), >> and creates >> 2*N+1 pipes to communicate with them (actually the pipes >> come first, >> but you knew that). Therefore, it should be (in theory) >> portable to >> any Unix system. Most suitable for systems like GNU/Linux, >> where fork >> () is efficient and pipes are a relatively cheap resource. >> (Dunno >> about Windoze, for example). > > Hi Jaroslav, > on cygwin fork() is a performance disaster as > Windows does not support it, and the workaround > is not efficient at all. > > :-(( >
That's bad. I knew it is not as efficient as on GNU/Linux, but didn't expect a "disaster". I think I'll make the function warn if ispc () returns true. One more reason for me to not ever return to Windows. regards -- RNDr. Jaroslav Hajek computing expert Aeronautical Research and Test Institute (VZLU) Prague, Czech Republic url: www.highegg.matfyz.cz ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
