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How to write a CUDA kernel in ocaml?
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Eray Ozkural
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Basile STARYNKEVITCH
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Eray Ozkural
- Basile STARYNKEVITCH
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Eray Ozkural
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Basile STARYNKEVITCH
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Date: | 2009-12-15 (16:29) |
From: | Basile STARYNKEVITCH <basile@s...> |
Subject: | Re: [Caml-list] How to write a CUDA kernel in ocaml? |
Eray Ozkural wrote: >>> I've looked at the CUDA bindings for ocaml, but it seems the kernels >>> were in C, am I right? How can I write the kernel in ocaml? > At any rate, the obvious question from a compiler standpoint is, > cannot we compile ocaml to C, is there a way to translate to C first > and then to whatever works for kernel? I know little about the ocaml > compiler so please forgive my naive questions. Compiling Ocaml to efficient C is not easy and probably impossible (or extremely difficult) in the general case. In particular, tail recursive calls are essential in Ocaml, and are not available in C in most compilers. Some C compilers are able to generate (in the machine) a teil call for a limited kind of C functions, which are not compatible with Ocaml's runtime system (& garbage collector). You could perhaps translate (in a dummy & inefficient way) the full Ocaml bytecode of an entire Ocaml application into a C program (for example, as a huge monolithic single C function, which would make gcc very unhappy to compile it). Of course, you could do much better, but it is not a trivial task. Another issue is that Ocaml might not box (or unbox) your floating point values as CUDA (or OpenCL) expects them. But I am not an expert on these things. Good luck. Regards. -- Basile STARYNKEVITCH http://starynkevitch.net/Basile/ email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359 8, rue de la Faiencerie, 92340 Bourg La Reine, France *** opinions {are only mines, sont seulement les miennes} ***