whatisuninitialized.cl

#define __restrict  __restrict__

__kernel void genann_run_input_to_hidden(
  genann_cfg const __constant *__restrict ann,
  genann_real __global *__restrict data)
{
  // One work item per hidden neuron
  size_t global_index = get_global_index();

  if (global_index >= ann->hidden)
    return;
  
  genann_real const __global *w = data;
  genann_real __global *o = data + ann->total_weights + ann->inputs;
  genann_real const __global *i = data + ann->total_weights;
  
  // Find the bias and array of weights for this output
  w += global_index * (ann->hidden + 1);

  // Load bias
  genann_real sum = -w[0];

  for (size_t k = 0, e = ann->inputs; k < e; ++k)
    sum += w[k+1] * i[k];
  
  // This should get inlined away to just the correct
  // activation function, at compile time
  o[global_index] = genann_act_hidden_indirect(ann, sum);
}