xref: /libCEED/backends/cuda-ref/ceed-cuda-ref.h (revision 07d5b98a8feba68a643190b8ea9bcdac5c3e6570)
1 // Copyright (c) 2017-2024, Lawrence Livermore National Security, LLC and other CEED contributors.
2 // All Rights Reserved. See the top-level LICENSE and NOTICE files for details.
3 //
4 // SPDX-License-Identifier: BSD-2-Clause
5 //
6 // This file is part of CEED:  http://github.com/ceed
7 #pragma once
8 
9 #include <ceed.h>
10 #include <ceed/backend.h>
11 #include <ceed/jit-source/cuda/cuda-types.h>
12 #include <cublas_v2.h>
13 #include <cuda.h>
14 
15 typedef struct {
16   CeedScalar *h_array;
17   CeedScalar *h_array_borrowed;
18   CeedScalar *h_array_owned;
19   CeedScalar *d_array;
20   CeedScalar *d_array_borrowed;
21   CeedScalar *d_array_owned;
22 } CeedVector_Cuda;
23 
24 typedef struct {
25   CUmodule        module;
26   CUfunction      ApplyNoTranspose, ApplyTranspose;
27   CUfunction      ApplyUnsignedNoTranspose, ApplyUnsignedTranspose;
28   CUfunction      ApplyUnorientedNoTranspose, ApplyUnorientedTranspose;
29   CeedInt         num_nodes;
30   const CeedInt  *h_offsets;
31   const CeedInt  *h_offsets_borrowed;
32   const CeedInt  *h_offsets_owned;
33   const CeedInt  *d_offsets;
34   const CeedInt  *d_offsets_borrowed;
35   const CeedInt  *d_offsets_owned;
36   const CeedInt  *d_t_offsets;
37   const CeedInt  *d_t_indices;
38   const CeedInt  *d_l_vec_indices;
39   const bool     *h_orients;
40   const bool     *h_orients_borrowed;
41   const bool     *h_orients_owned;
42   const bool     *d_orients;
43   const bool     *d_orients_borrowed;
44   const bool     *d_orients_owned;
45   const CeedInt8 *h_curl_orients;
46   const CeedInt8 *h_curl_orients_borrowed;
47   const CeedInt8 *h_curl_orients_owned;
48   const CeedInt8 *d_curl_orients;
49   const CeedInt8 *d_curl_orients_borrowed;
50   const CeedInt8 *d_curl_orients_owned;
51 } CeedElemRestriction_Cuda;
52 
53 typedef struct {
54   CUmodule    module;
55   CUfunction  Interp;
56   CUfunction  Grad;
57   CUfunction  Weight;
58   CeedScalar *d_interp_1d;
59   CeedScalar *d_grad_1d;
60   CeedScalar *d_q_weight_1d;
61 } CeedBasis_Cuda;
62 
63 typedef struct {
64   CUmodule    module;
65   CUfunction  Interp;
66   CUfunction  InterpTranspose;
67   CUfunction  Deriv;
68   CUfunction  DerivTranspose;
69   CUfunction  Weight;
70   CeedScalar *d_interp;
71   CeedScalar *d_grad;
72   CeedScalar *d_div;
73   CeedScalar *d_curl;
74   CeedScalar *d_q_weight;
75 } CeedBasisNonTensor_Cuda;
76 
77 typedef struct {
78   CUmodule    module;
79   const char *qfunction_name;
80   const char *qfunction_source;
81   CUfunction  QFunction;
82   Fields_Cuda fields;
83   void       *d_c;
84 } CeedQFunction_Cuda;
85 
86 typedef struct {
87   void *h_data;
88   void *h_data_borrowed;
89   void *h_data_owned;
90   void *d_data;
91   void *d_data_borrowed;
92   void *d_data_owned;
93 } CeedQFunctionContext_Cuda;
94 
95 typedef struct {
96   CUmodule            module, module_point_block;
97   CUfunction          LinearDiagonal;
98   CUfunction          LinearPointBlock;
99   CeedElemRestriction diag_rstr, point_block_diag_rstr;
100   CeedVector          elem_diag, point_block_elem_diag;
101   CeedEvalMode       *d_eval_modes_in, *d_eval_modes_out;
102   CeedScalar         *d_identity, *d_interp_in, *d_grad_in, *d_div_in, *d_curl_in;
103   CeedScalar         *d_interp_out, *d_grad_out, *d_div_out, *d_curl_out;
104 } CeedOperatorDiag_Cuda;
105 
106 typedef struct {
107   CUmodule    module;
108   CUfunction  LinearAssemble;
109   CeedInt     block_size_x, block_size_y, elems_per_block;
110   CeedScalar *d_B_in, *d_B_out;
111 } CeedOperatorAssemble_Cuda;
112 
113 typedef struct {
114   CeedVector                *e_vecs;      // E-vectors, inputs followed by outputs
115   CeedVector                *q_vecs_in;   // Input Q-vectors needed to apply operator
116   CeedVector                *q_vecs_out;  // Output Q-vectors needed to apply operator
117   CeedInt                    num_inputs, num_outputs;
118   CeedInt                    num_active_in, num_active_out;
119   CeedVector                *qf_active_in;
120   CeedOperatorDiag_Cuda     *diag;
121   CeedOperatorAssemble_Cuda *asmb;
122 } CeedOperator_Cuda;
123 
124 CEED_INTERN int CeedGetCublasHandle_Cuda(Ceed ceed, cublasHandle_t *handle);
125 
126 CEED_INTERN int CeedVectorCreate_Cuda(CeedSize n, CeedVector vec);
127 
128 CEED_INTERN int CeedElemRestrictionCreate_Cuda(CeedMemType mem_type, CeedCopyMode copy_mode, const CeedInt *offsets, const bool *orients,
129                                                const CeedInt8 *curl_orients, CeedElemRestriction r);
130 
131 CEED_INTERN int CeedBasisCreateTensorH1_Cuda(CeedInt dim, CeedInt P_1d, CeedInt Q_1d, const CeedScalar *interp_1d, const CeedScalar *grad_1d,
132                                              const CeedScalar *q_ref_1d, const CeedScalar *q_weight_1d, CeedBasis basis);
133 CEED_INTERN int CeedBasisCreateH1_Cuda(CeedElemTopology topo, CeedInt dim, CeedInt num_nodes, CeedInt num_qpts, const CeedScalar *interp,
134                                        const CeedScalar *grad, const CeedScalar *q_ref, const CeedScalar *q_weight, CeedBasis basis);
135 CEED_INTERN int CeedBasisCreateHdiv_Cuda(CeedElemTopology topo, CeedInt dim, CeedInt num_nodes, CeedInt num_qpts, const CeedScalar *interp,
136                                          const CeedScalar *div, const CeedScalar *q_ref, const CeedScalar *q_weight, CeedBasis basis);
137 CEED_INTERN int CeedBasisCreateHcurl_Cuda(CeedElemTopology topo, CeedInt dim, CeedInt num_nodes, CeedInt num_qpts, const CeedScalar *interp,
138                                           const CeedScalar *curl, const CeedScalar *q_ref, const CeedScalar *q_weight, CeedBasis basis);
139 
140 CEED_INTERN int CeedQFunctionCreate_Cuda(CeedQFunction qf);
141 
142 CEED_INTERN int CeedQFunctionContextCreate_Cuda(CeedQFunctionContext ctx);
143 
144 CEED_INTERN int CeedOperatorCreate_Cuda(CeedOperator op);
145