Hi Christoph, I did indeed some experiments in OpenCL and CUDA code generation like 4 or 5 years ago. The code is stil there in the compiler (using the ‘experimental -ocl or -cuda command line parameters), with the C++ code in : https://github.com/grame-cncm/faust/tree/master-dev/compiler/generator/cpp
At that time the result was not result satisfactory for several reasons: 1) GPU computation is not really adapted to the need of general audio algorithms, but more for highly « data parallel » needs (likes images). In audio code, as soon as your code is doing recursions, GPU are quite inefficient and not used the way they like 2) the code generation strategy was very naive, so probably even under-using what could be theoretically achieved 3) GPU/CPU memory transfer suffers from high latency, so is not adapted to real-time computation with small buffer sizes I read later on that the Csound guys did some experiment, see here about the CUDA thing: http://www.csounds.com/manual/html/PrefaceWhatsNew.html. Victor Lazzarini on this list can probably develop here. So my conclusion is that OpenCL/CUDA *could* be interesting again assuming 1) a subset of audio algorithms only would be compiled, 2) the Faust compiler possibly need some new primitives (vector, matrix..) more adapted to GPU processing, and code generation would have two be improved, 3) the latency issues would have to be revisited with more recent and powerful cards. Stéphane > Le 23 févr. 2018 à 08:07, Christoph Kuhr <christoph.k...@web.de> a écrit : > > Hi *, > > I wonder if there is some work on a CUDA/OpenCL Compiler for Faust? > > Would this not be a very interesting feature? > > > BR, > Ck > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Faudiostream-users mailing list > Faudiostream-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/faudiostream-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Faudiostream-users mailing list Faudiostream-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/faudiostream-users
