Line data    Source code

       1              : // Copyright 2024, UChicago Argonne, LLC
       2              : // All Rights Reserved
       3              : // Software Name: NEML2 -- the New Engineering material Model Library, version 2
       4              : // By: Argonne National Laboratory
       5              : // OPEN SOURCE LICENSE (MIT)
       6              : //
       7              : // Permission is hereby granted, free of charge, to any person obtaining a copy
       8              : // of this software and associated documentation files (the "Software"), to deal
       9              : // in the Software without restriction, including without limitation the rights
      10              : // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
      11              : // copies of the Software, and to permit persons to whom the Software is
      12              : // furnished to do so, subject to the following conditions:
      13              : //
      14              : // The above copyright notice and this permission notice shall be included in
      15              : // all copies or substantial portions of the Software.
      16              : //
      17              : // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      18              : // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      19              : // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      20              : // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      21              : // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      22              : // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      23              : // THE SOFTWARE.
      24              : 
      25              : #include <ATen/ops/zeros.h>
      26              : 
      27              : #include "neml2/tensors/functions/discretization/assemble.h"
      28              : #include "neml2/misc/assertions.h"
      29              : 
      30              : namespace neml2::discretization
      31              : {
      32              : ATensor
      33            0 : assemble(const ATensor & v_scattered, const ATensor & dof_map, Size ndof)
      34              : {
      35            0 :   auto r = at::zeros(ndof, v_scattered.options());
      36            0 :   assemble_(r, v_scattered, dof_map);
      37            0 :   return r;
      38            0 : }
      39              : 
      40              : void
      41            2 : assemble_(ATensor & v, const ATensor & v_scattered, const ATensor & dof_map)
      42              : {
      43            2 :   neml_assert(v.dim() == 1, "assemble_: v must be a vector, got ", v.sizes());
      44            2 :   neml_assert(v_scattered.sizes() == dof_map.sizes(),
      45              :               "assemble_: v_scattered and dof_map must have the same sizes, got ",
      46            2 :               v_scattered.sizes(),
      47              :               " and ",
      48            2 :               dof_map.sizes());
      49            2 :   v.scatter_add_(0, dof_map.flatten(), v_scattered.flatten());
      50            2 : }
      51              : } // namespace neml2::discretization