Got it. Thanks all. On Sep 11, 2014 8:48 AM, "CRV§ADER//KY" <[email protected]> wrote:
> Segfault smells like having more workers than elements to me. > You must either pass the length of those two vectors and check i that gid > doesn't exceed it, or have the length be always exactly divisible by the > work group size. (the former is much more robust) > On 11 Sep 2014 16:38, "Gus Peterson" <[email protected]> wrote: > >> Oh boy, >> Yes. My mistake. Now I'm getting a seg fault. >> >> Thanks for catching this. Too little sleep. >> >> -Gus >> >> On Thu, Sep 11, 2014 at 7:21 AM, Bogdan Opanchuk <[email protected]> >> wrote: >> >>> Hi Gus, >>> >>> Did you mean to write "target[gid] = tanh(matrix[gid]);"? >>> >>> On Fri, Sep 12, 2014 at 12:15 AM, Gus Peterson <[email protected]> >>> wrote: >>> >>>> Hi all - >>>> >>>> I'm building a small set of OpenCL executable math functions with some >>>> friends. I'm having a hard time getting the "tanh" function to come out. >>>> When I compile the following code: >>>> >>>> *# OpenCL (C99) kernel code, compiled* >>>> *prg = cl.Program(ctx, """* >>>> *__kernel void ApplyTanh(__global const float *matrix, __global float >>>> *target) {* >>>> * int gid = get_global_id(0);* >>>> * target[gid] = tanh(matrix);* >>>> *}* >>>> *""").build()* >>>> >>>> I get this error: >>>> >>>> *"/tmp/OCL7750T1.cl", line 4: error: no instance of overloaded function >>>> "tanh"* >>>> * matches the argument list* >>>> * argument types are: (const __global float *)* >>>> * target[gid] = tanh(matrix);* >>>> >>>> What on earth can I do to get the OpenCL kernel code to execute a >>>> hyperbolic tangent? >>>> >>>> Thanks, >>>> Gus >>>> >>>> _______________________________________________ >>>> PyOpenCL mailing list >>>> [email protected] >>>> http://lists.tiker.net/listinfo/pyopencl >>>> >>>> >>> >> >> _______________________________________________ >> PyOpenCL mailing list >> [email protected] >> http://lists.tiker.net/listinfo/pyopencl >> >>
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