conv_spatial_helper.cl

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#define CONCAT(A,B) A##_##B
#define TEMPLATE(name,type) CONCAT(name,type)
#define Dtype float

__kernel void TEMPLATE(copyWeightsSwizzled, Dtype)
    (__global Dtype* weightIn,
     __global Dtype* weightOut,
     const int kernel_w,
     const int kernel_h,
     const int channels,
     const int outputs,
     const int swizzleFactor) {

  unsigned int sX = get_global_id(0);

  //Original location

  //Output location
  int outputSublayer = channels / swizzleFactor;
  int outputSublayerIndex = channels % swizzleFactor;

  int filter = sX / (kernel_w*kernel_h*channels);
  int kernel_X = sX % kernel_w;
  int kernel_Y = (sX / kernel_w) % kernel_h;
  int kernel_C = (sX / (kernel_w * kernel_h)) % channels;

  int FP = filter / swizzleFactor;
  int F1 = filter % swizzleFactor;

  weightOut[FP*(kernel_w*kernel_h*channels*swizzleFactor) + kernel_C*(kernel_w*kernel_h*swizzleFactor) + kernel_Y*(kernel_w*swizzleFactor) + kernel_X*swizzleFactor + F1]
  = weightIn[filter*(kernel_w*kernel_h*channels) + kernel_C*(kernel_w*kernel_h) + kernel_Y*kernel_w + kernel_X];
}