xref: /libCEED/backends/cuda-ref/ceed-cuda-ref.h (revision b20a4af9cd65fb919c98e62df325832b3aefde7d)
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   const CeedInt  *h_offsets_at_points;
52   const CeedInt  *h_offsets_at_points_borrowed;
53   const CeedInt  *h_offsets_at_points_owned;
54   const CeedInt  *d_offsets_at_points;
55   const CeedInt  *d_offsets_at_points_borrowed;
56   const CeedInt  *d_offsets_at_points_owned;
57 } CeedElemRestriction_Cuda;
58 
59 typedef struct {
60   CUmodule    module;
61   CUfunction  Interp;
62   CUfunction  Grad;
63   CUfunction  Weight;
64   CeedScalar *d_interp_1d;
65   CeedScalar *d_grad_1d;
66   CeedScalar *d_q_weight_1d;
67 } CeedBasis_Cuda;
68 
69 typedef struct {
70   CUmodule    module;
71   CUfunction  Interp;
72   CUfunction  InterpTranspose;
73   CUfunction  Deriv;
74   CUfunction  DerivTranspose;
75   CUfunction  Weight;
76   CeedScalar *d_interp;
77   CeedScalar *d_grad;
78   CeedScalar *d_div;
79   CeedScalar *d_curl;
80   CeedScalar *d_q_weight;
81 } CeedBasisNonTensor_Cuda;
82 
83 typedef struct {
84   CUmodule    module;
85   const char *qfunction_name;
86   const char *qfunction_source;
87   CUfunction  QFunction;
88   Fields_Cuda fields;
89   void       *d_c;
90 } CeedQFunction_Cuda;
91 
92 typedef struct {
93   void *h_data;
94   void *h_data_borrowed;
95   void *h_data_owned;
96   void *d_data;
97   void *d_data_borrowed;
98   void *d_data_owned;
99 } CeedQFunctionContext_Cuda;
100 
101 typedef struct {
102   CUmodule            module, module_point_block;
103   CUfunction          LinearDiagonal;
104   CUfunction          LinearPointBlock;
105   CeedElemRestriction diag_rstr, point_block_diag_rstr;
106   CeedVector          elem_diag, point_block_elem_diag;
107   CeedEvalMode       *d_eval_modes_in, *d_eval_modes_out;
108   CeedScalar         *d_identity, *d_interp_in, *d_grad_in, *d_div_in, *d_curl_in;
109   CeedScalar         *d_interp_out, *d_grad_out, *d_div_out, *d_curl_out;
110 } CeedOperatorDiag_Cuda;
111 
112 typedef struct {
113   CUmodule    module;
114   CUfunction  LinearAssemble;
115   CeedInt     block_size_x, block_size_y, elems_per_block;
116   CeedScalar *d_B_in, *d_B_out;
117 } CeedOperatorAssemble_Cuda;
118 
119 typedef struct {
120   CeedVector                *e_vecs;      // E-vectors, inputs followed by outputs
121   CeedVector                *q_vecs_in;   // Input Q-vectors needed to apply operator
122   CeedVector                *q_vecs_out;  // Output Q-vectors needed to apply operator
123   CeedInt                    num_inputs, num_outputs;
124   CeedInt                    num_active_in, num_active_out;
125   CeedVector                *qf_active_in;
126   CeedOperatorDiag_Cuda     *diag;
127   CeedOperatorAssemble_Cuda *asmb;
128 } CeedOperator_Cuda;
129 
130 CEED_INTERN int CeedGetCublasHandle_Cuda(Ceed ceed, cublasHandle_t *handle);
131 
132 CEED_INTERN int CeedVectorCreate_Cuda(CeedSize n, CeedVector vec);
133 
134 CEED_INTERN int CeedElemRestrictionCreate_Cuda(CeedMemType mem_type, CeedCopyMode copy_mode, const CeedInt *offsets, const bool *orients,
135                                                const CeedInt8 *curl_orients, CeedElemRestriction r);
136 
137 CEED_INTERN int CeedBasisCreateTensorH1_Cuda(CeedInt dim, CeedInt P_1d, CeedInt Q_1d, const CeedScalar *interp_1d, const CeedScalar *grad_1d,
138                                              const CeedScalar *q_ref_1d, const CeedScalar *q_weight_1d, CeedBasis basis);
139 CEED_INTERN int CeedBasisCreateH1_Cuda(CeedElemTopology topo, CeedInt dim, CeedInt num_nodes, CeedInt num_qpts, const CeedScalar *interp,
140                                        const CeedScalar *grad, const CeedScalar *q_ref, const CeedScalar *q_weight, CeedBasis basis);
141 CEED_INTERN int CeedBasisCreateHdiv_Cuda(CeedElemTopology topo, CeedInt dim, CeedInt num_nodes, CeedInt num_qpts, const CeedScalar *interp,
142                                          const CeedScalar *div, const CeedScalar *q_ref, const CeedScalar *q_weight, CeedBasis basis);
143 CEED_INTERN int CeedBasisCreateHcurl_Cuda(CeedElemTopology topo, CeedInt dim, CeedInt num_nodes, CeedInt num_qpts, const CeedScalar *interp,
144                                           const CeedScalar *curl, const CeedScalar *q_ref, const CeedScalar *q_weight, CeedBasis basis);
145 
146 CEED_INTERN int CeedQFunctionCreate_Cuda(CeedQFunction qf);
147 
148 CEED_INTERN int CeedQFunctionContextCreate_Cuda(CeedQFunctionContext ctx);
149 
150 CEED_INTERN int CeedOperatorCreate_Cuda(CeedOperator op);
151