Neko 1.99.1
A portable framework for high-order spectral element flow simulations
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gs.hip
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1/*
2 Copyright (c) 2021-2025, The Neko Authors
3 All rights reserved.
4
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions
7 are met:
8
9 * Redistributions of source code must retain the above copyright
10 notice, this list of conditions and the following disclaimer.
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12 * Redistributions in binary form must reproduce the above
13 copyright notice, this list of conditions and the following
14 disclaimer in the documentation and/or other materials provided
15 with the distribution.
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17 * Neither the name of the authors nor the names of its
18 contributors may be used to endorse or promote products derived
19 from this software without specific prior written permission.
20
21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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31 ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 POSSIBILITY OF SUCH DAMAGE.
33*/
34
35#include <hip/hip_runtime.h>
36#include <climits>
37#include <cstdio>
39#include <device/hip/check.h>
40#include "gs_kernels.h"
41
42#define GS_OP_ADD 1
43#define GS_OP_MUL 2
44#define GS_OP_MIN 3
45#define GS_OP_MAX 4
46
47extern "C" {
48
52 void hip_gather_kernel(void *v, int *m, int *o, void *dg,
53 void *u, int *n, void *gd, int *nb,
54 void *b, void *bo, int *op,
55 hipStream_t stream) {
56
57 if ((*m) == 0) return;
58
59 const dim3 nthrds(1024, 1, 1);
60 const dim3 nblcks(((*m)+ 1024 - 1)/ 1024, 1, 1);
61
62 switch (*op) {
63 case GS_OP_ADD:
65 nblcks, nthrds, 0, stream,
66 (real *) v, *m, *o, (int *) dg,
67 (real *) u, *n, (int *) gd,
68 *nb, (int *) b, (int *) bo);
70 break;
71 case GS_OP_MUL:
73 nblcks, nthrds, 0, stream,
74 (real *) v, *m, *o, (int *) dg,
75 (real *) u, *n, (int *) gd,
76 *nb, (int *) b, (int *) bo);
78 break;
79 case GS_OP_MIN:
81 nblcks, nthrds, 0, stream,
82 (real *) v, *m, *o, (int *) dg,
83 (real *) u, *n, (int *) gd,
84 *nb, (int *) b, (int *) bo);
86 break;
87 case GS_OP_MAX:
89 nblcks, nthrds, 0, stream,
90 (real *) v, *m, *o, (int *) dg,
91 (real *) u, *n, (int *) gd,
92 *nb, (int *) b, (int *) bo);
94 break;
95 }
96 }
97
101 void hip_scatter_kernel(void *v, int *m, void *dg,
102 void *u, int *n, void *gd,
103 int *nb, void *b, void *bo,
104 hipStream_t stream) {
105
106 if ((*m) == 0) return;
107
108 const dim3 nthrds(1024, 1, 1);
109 const dim3 nblcks(((*m)+1024 - 1)/ 1024, 1, 1);
110
112 nblcks, nthrds, 0, stream,
113 (real *) v, *m, (int *) dg,
114 (real *) u, *n, (int *) gd,
115 *nb, (int *) b, (int *) bo);
117 }
118
122 void hip_gs_pack(void *u_d, void *buf_d, void *dof_d,
123 int offset, int n, hipStream_t stream) {
124
125 const int nthrds = 1024;
126 const int nblcks = (n + nthrds - 1) / nthrds;
127
129 nblcks, nthrds, 0, stream,
130 (real *) u_d, (real *) buf_d + offset,
131 (int *) dof_d + offset, n);
133 }
134
138 void hip_gs_unpack(real *u_d, int op, real *buf_d, int *dof_d,
139 int offset, int n, hipStream_t stream) {
140
141 const int nthrds = 1024;
142 const int nblcks = (n + nthrds - 1) / nthrds;
143
144 switch (op) {
145 case GS_OP_ADD:
147 nblcks, nthrds, 0, stream,
148 u_d, buf_d + offset,
149 dof_d + offset, n);
150
151 break;
152 case GS_OP_MIN:
154 nblcks, nthrds, 0, stream,
155 u_d, buf_d + offset,
156 dof_d + offset, n);
157 break;
158 case GS_OP_MAX:
160 nblcks, nthrds, 0, stream,
161 u_d, buf_d + offset,
162 dof_d + offset, n);
163 break;
164 default:
165 printf("%s: unknown gs op %d\n", __FILE__, op);
166 abort();
167 }
168
170 }
171}
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ u
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ v
__global__ void dirichlet_apply_scalar_kernel(const int *__restrict__ msk, T *__restrict__ x, const T g, const int m)
double real
#define GS_OP_MAX
Definition gs.hip:45
#define GS_OP_ADD
Definition gs.hip:42
void hip_gs_unpack(real *u_d, int op, real *buf_d, int *dof_d, int offset, int n, hipStream_t stream)
Definition gs.hip:138
void hip_scatter_kernel(void *v, int *m, void *dg, void *u, int *n, void *gd, int *nb, void *b, void *bo, hipStream_t stream)
Definition gs.hip:101
void hip_gs_pack(void *u_d, void *buf_d, void *dof_d, int offset, int n, hipStream_t stream)
Definition gs.hip:122
#define GS_OP_MUL
Definition gs.hip:43
void hip_gather_kernel(void *v, int *m, int *o, void *dg, void *u, int *n, void *gd, int *nb, void *b, void *bo, int *op, hipStream_t stream)
Definition gs.hip:52
#define GS_OP_MIN
Definition gs.hip:44
#define HIP_CHECK(err)
Definition check.h:8