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[nibal]

void FFT::Init(__global float *real,__global float *imag,__local float *Localds)
{
     gr = real;

     gi = imag;
     lds = Localds;
     gid = get_global_id(0);
      me = gid & 0x3fU;
      dg = (gid >> 6) * VSTRIDE;
      gr += dg;
      gi += dg;
}

In the host program globalThreads[0] = 64. Therefore, dg (the mp step) is always 0. As a result, it runs the full 64x1024 FFT each time, overwriting previous results. I am sure this is not intentional. Plz fix.

[nibal · Accepted solution]

Actually, it is not broken. It mps with another step, me. Works fine. Regardless, dg is leftover code, not used, that is misleading and should be removed.