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@ -86,13 +86,21 @@ __global__ void norm(Matrix mean_shift_vector, double *current_norm) { |
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// by accumulating results into cell_value |
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double cell_value = 0; |
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int row = blockIdx.x * blockDim.x + threadIdx.x; |
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int col = blockIdx.y * blockDim.y + threadIdx.y; |
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// performs calculations only if thread's indexes are within matrix bounds |
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if (row * mean_shift_vector.width + col >= mean_shift_vector.width * mean_shift_vector.height){ |
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if (row >= denominator.height){ |
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return; |
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} |
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// for (int column = 0; column < kernel_matrix.width; ++column){ |
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// cell_value += kernel_matrix.elements[row * kernel_matrix.width + column]; |
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// } |
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denominator.elements[row] = cell_value; |
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// performs calculations only if thread's indexes are within matrix bounds |
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// if (row * mean_shift_vector.width + col >= mean_shift_vector.width * mean_shift_vector.height){ |
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// return; |
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// } |
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for (int element_index = 0; element_index < mean_shift_vector.width; ++element_index){ |
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cell_value += mean_shift_vector.elements[row * mean_shift_vector.width + element_index] |
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* mean_shift_vector.elements[row * mean_shift_vector.width + element_index]; |
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