xref: /libCEED/examples/petsc/qfunctions/bps/common.h (revision 6c88e6a2c47a72cd5c3efacc26a364b9cb7d40db)
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.
3cb32e2e7SValeria Barra //
43d8e8822SJeremy L Thompson // SPDX-License-Identifier: BSD-2-Clause
5cb32e2e7SValeria Barra //
63d8e8822SJeremy L Thompson // This file is part of CEED:  http://github.com/ceed
7cb32e2e7SValeria Barra 
8cb32e2e7SValeria Barra /// @file
9cb32e2e7SValeria Barra /// libCEED QFunctions for BP examples using PETSc
10cb32e2e7SValeria Barra 
11f6b55d2cSvaleriabarra #ifndef common_h
12f6b55d2cSvaleriabarra #define common_h
13f6b55d2cSvaleriabarra 
14c9c2c079SJeremy L Thompson #include <ceed.h>
15c9c2c079SJeremy L Thompson 
16cb32e2e7SValeria Barra // -----------------------------------------------------------------------------
17cb32e2e7SValeria Barra CEED_QFUNCTION(Error)(void *ctx, CeedInt Q,
18cb32e2e7SValeria Barra                       const CeedScalar *const *in, CeedScalar *const *out) {
19d4d45553Srezgarshakeri   const CeedScalar *u = in[0], *target = in[1], *q_data = in[2];
209b072555Sjeremylt   CeedScalar *error = out[0];
21cb32e2e7SValeria Barra   for (CeedInt i=0; i<Q; i++) {
22*6c88e6a2Srezgarshakeri     error[i] = (u[i] - target[i])*q_data[i]*q_data[i];
23cb32e2e7SValeria Barra   }
24cb32e2e7SValeria Barra   return 0;
25cb32e2e7SValeria Barra }
26cb32e2e7SValeria Barra 
27cb32e2e7SValeria Barra // -----------------------------------------------------------------------------
28cb32e2e7SValeria Barra CEED_QFUNCTION(Error3)(void *ctx, CeedInt Q,
29cb32e2e7SValeria Barra                        const CeedScalar *const *in, CeedScalar *const *out) {
30d4d45553Srezgarshakeri   const CeedScalar *u = in[0], *target = in[1], *q_data = in[2];
319b072555Sjeremylt   CeedScalar *error = out[0];
32*6c88e6a2Srezgarshakeri   for (CeedInt i=0; i<Q; i++) {
33*6c88e6a2Srezgarshakeri     error[i+0*Q] = (u[i+0*Q] - target[i+0*Q])*q_data[i]*q_data[i];
34*6c88e6a2Srezgarshakeri     error[i+1*Q] = (u[i+1*Q] - target[i+1*Q])*q_data[i]*q_data[i];
35*6c88e6a2Srezgarshakeri     error[i+2*Q] = (u[i+2*Q] - target[i+2*Q])*q_data[i]*q_data[i];
36cb32e2e7SValeria Barra   }
37cb32e2e7SValeria Barra   return 0;
38cb32e2e7SValeria Barra }
39cb32e2e7SValeria Barra // -----------------------------------------------------------------------------
40f6b55d2cSvaleriabarra 
41f6b55d2cSvaleriabarra #endif // common_h
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