xref: /libCEED/rust/libceed-sys/c-src/gallery/poisson/ceed-poisson2dapply.c (revision 2b730f8b5a9c809740a0b3b302db43a719c636b1)
13d8e8822SJeremy L Thompson // Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other CEED contributors.
23d8e8822SJeremy L Thompson // All Rights Reserved. See the top-level LICENSE and NOTICE files for details.
36a6224a1SJeremy L Thompson //
43d8e8822SJeremy L Thompson // SPDX-License-Identifier: BSD-2-Clause
56a6224a1SJeremy L Thompson //
63d8e8822SJeremy L Thompson // This file is part of CEED:  http://github.com/ceed
76a6224a1SJeremy L Thompson 
86a6224a1SJeremy L Thompson #include <ceed/backend.h>
9*2b730f8bSJeremy L Thompson #include <ceed/ceed.h>
10a0154adeSJed Brown #include <ceed/jit-source/gallery/ceed-poisson2dapply.h>
11*2b730f8bSJeremy L Thompson #include <string.h>
126a6224a1SJeremy L Thompson 
136a6224a1SJeremy L Thompson /**
146a6224a1SJeremy L Thompson   @brief Set fields for Ceed QFunction applying the 2D Poisson operator
156a6224a1SJeremy L Thompson **/
16*2b730f8bSJeremy L Thompson static int CeedQFunctionInit_Poisson2DApply(Ceed ceed, const char *requested, CeedQFunction qf) {
176a6224a1SJeremy L Thompson   // Check QFunction name
186a6224a1SJeremy L Thompson   const char *name = "Poisson2DApply";
19*2b730f8bSJeremy L Thompson   if (strcmp(name, requested)) {
206a6224a1SJeremy L Thompson     // LCOV_EXCL_START
21*2b730f8bSJeremy L Thompson     return CeedError(ceed, CEED_ERROR_UNSUPPORTED, "QFunction '%s' does not match requested name: %s", name, requested);
226a6224a1SJeremy L Thompson     // LCOV_EXCL_STOP
23*2b730f8bSJeremy L Thompson   }
246a6224a1SJeremy L Thompson 
256a6224a1SJeremy L Thompson   // Add QFunction fields
266a6224a1SJeremy L Thompson   const CeedInt dim = 2;
27*2b730f8bSJeremy L Thompson   CeedCall(CeedQFunctionAddInput(qf, "du", dim, CEED_EVAL_GRAD));
28*2b730f8bSJeremy L Thompson   CeedCall(CeedQFunctionAddInput(qf, "qdata", dim * (dim + 1) / 2, CEED_EVAL_NONE));
29*2b730f8bSJeremy L Thompson   CeedCall(CeedQFunctionAddOutput(qf, "dv", dim, CEED_EVAL_GRAD));
306a6224a1SJeremy L Thompson 
31*2b730f8bSJeremy L Thompson   CeedCall(CeedQFunctionSetUserFlopsEstimate(qf, 6));
326e15d496SJeremy L Thompson 
336a6224a1SJeremy L Thompson   return CEED_ERROR_SUCCESS;
346a6224a1SJeremy L Thompson }
356a6224a1SJeremy L Thompson 
366a6224a1SJeremy L Thompson /**
376a6224a1SJeremy L Thompson   @brief Register Ceed QFunction for applying the 2D Poisson operator
386a6224a1SJeremy L Thompson **/
396a6224a1SJeremy L Thompson CEED_INTERN int CeedQFunctionRegister_Poisson2DApply(void) {
40*2b730f8bSJeremy L Thompson   return CeedQFunctionRegister("Poisson2DApply", Poisson2DApply_loc, 1, Poisson2DApply, CeedQFunctionInit_Poisson2DApply);
416a6224a1SJeremy L Thompson }
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