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#ifndef TH_GENERIC_FILE
#define TH_GENERIC_FILE "generic/Square.c"
#else
static int nn_(Square_updateOutput)(lua_State *L)
{
THTensor *input = luaT_checkudata(L, 2, torch_(Tensor_id));
THTensor *output = luaT_getfieldcheckudata(L, 1, "output", torch_(Tensor_id));
THTensor_(resizeAs)(output, input);
if (input->nDimension == 1 || !THTensor_(isContiguous)(input) || !THTensor_(isContiguous)(output))
{
TH_TENSOR_APPLY2(real, output, real, input, \
*output_data = (*input_data) * (*input_data););
}
else
{
real* output_data = THTensor_(data)(output);
real* input_data = THTensor_(data)(input);
long k;
#pragma omp parallel for private(k)
for (k = 0; k < input->size[0]; k++)
{
real* ptr_output = output_data + k*input->stride[0];
real* ptr_input = input_data + k*input->stride[0];
long i;
for (i = 0; i < input->stride[0]; i++)
{
ptr_output[i] = ptr_input[i]*ptr_input[i];
}
}
}
return 1;
}
static int nn_(Square_updateGradInput)(lua_State *L)
{
THTensor *input = luaT_checkudata(L, 2, torch_(Tensor_id));
THTensor *gradOutput = luaT_checkudata(L, 3, torch_(Tensor_id));
THTensor *gradInput = luaT_getfieldcheckudata(L, 1, "gradInput", torch_(Tensor_id));
THTensor_(resizeAs)(gradInput, input);
if (input->nDimension == 1 ||
!THTensor_(isContiguous)(input) ||
!THTensor_(isContiguous)(gradOutput) ||
!THTensor_(isContiguous)(gradInput))
{
TH_TENSOR_APPLY3(real, gradInput, real, gradOutput, real, input, \
*gradInput_data = (*gradOutput_data) * (*input_data););
}
else
{
real* gradOutput_data = THTensor_(data)(gradOutput);
real* gradInput_data = THTensor_(data)(gradInput);
real* input_data = THTensor_(data)(input);
long k;
#pragma omp parallel for private(k)
for (k = 0; k < input->size[0]; k++)
{
real* ptr_gradOutput = gradOutput_data + k*input->stride[0];
real* ptr_gradInput = gradInput_data + k*input->stride[0];
real* ptr_input = input_data + k*input->stride[0];
long i;
for (i = 0; i < input->stride[0]; i++)
{
ptr_gradInput[i] = 2.0 * ptr_gradOutput[i] * ptr_input[i];
}
}
}
return 1;
}
static const struct luaL_Reg nn_(Square__) [] = {
{"Square_updateOutput", nn_(Square_updateOutput)},
{"Square_updateGradInput", nn_(Square_updateGradInput)},
{NULL, NULL}
};
static void nn_(Square_init)(lua_State *L)
{
luaT_pushmetaclass(L, torch_(Tensor_id));
luaT_registeratname(L, nn_(Square__), "nn");
lua_pop(L,1);
}
#endif
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