Neko 0.9.1
A portable framework for high-order spectral element flow simulations
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opr_lambda2.cu
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1/*
2 Copyright (c) 2021-2023, 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.
11
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.
16
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
30 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 POSSIBILITY OF SUCH DAMAGE.
33*/
34
35#include <string.h>
36#include <stdlib.h>
37#include <stdio.h>
38#include "lambda2_kernel.h"
39#include <device/device_config.h>
40#include <device/cuda/check.h>
41
42extern "C" {
43 #include <common/neko_log.h>
44}
45
46template < const int >
47int tune_lambda2(void *ux, void *uy, void *uz, void *u,
48 void *dx, void *dy, void *dz,
49 void *drdx, void *dsdx, void *dtdx,
50 void *drdy, void *dsdy, void *dtdy,
51 void *drdz, void *dsdz, void *dtdz,
52 void *jacinv, int *nel, int *lx);
53
54extern "C" {
55
59 void cuda_lambda2(void *lambda2, void *u, void *v, void *w,
60 void *dx, void *dy, void *dz,
61 void *drdx, void *dsdx, void *dtdx,
62 void *drdy, void *dsdy, void *dtdy,
63 void *drdz, void *dsdz, void *dtdz,
64 void *jacinv, int *nel, int *lx) {
65
66 static int autotune[17] = { 0 };
67
68 const dim3 nthrds_1d(1024, 1, 1);
69 const dim3 nthrds_kstep((*lx), (*lx), 1);
70 const dim3 nblcks((*nel), 1, 1);
71 const cudaStream_t stream = (cudaStream_t) glb_cmd_queue;
72
73#define CASE_1D(LX) \
74 lambda2_kernel_1d<real, LX, 1024> \
75 <<<nblcks, nthrds_1d, 0, stream>>> \
76 ((real *) lambda2, (real *) u, (real *) v, (real *) w, \
77 (real *) dx, (real *) dy, (real *) dz, \
78 (real *) drdx, (real *) dsdx, (real *) dtdx, \
79 (real *) drdy, (real *) dsdy, (real *) dtdy, \
80 (real *) drdz, (real *) dsdz, (real *) dtdz, \
81 (real *) jacinv); \
82 CUDA_CHECK(cudaGetLastError());
83
84
85#define CASE_KSTEP(LX) \
86 lambda2_kernel_kstep<real, LX> <<<nblcks, nthrds_kstep, 0, stream>>> \
87 ((real *) lambda2, (real *) u, (real *) v, (real *) w, \
88 (real *) dx, (real *) dy, (real *) dz, \
89 (real *) drdx, (real *) dsdx, (real *) dtdx, \
90 (real *) drdy, (real *) dsdy, (real *) dtdy, \
91 (real *) drdz, (real *) dsdz, (real *) dtdz, \
92 (real *) jacinv); \
93 CUDA_CHECK(cudaGetLastError());
94
95#define CASE(LX) \
96 case LX: \
97 if(autotune[LX] == 0 ) { \
98 autotune[LX]=tune_lambda2<LX>(lambda2, u, v, w, \
99 dx, dy, dz, \
100 drdx, dsdx, dtdx, \
101 drdy, dsdy, dtdy, \
102 drdz, dsdz, dtdz, \
103 jacinv, nel, lx); \
104 } else if (autotune[LX] == 1 ) { \
105 CASE_1D(LX); \
106 } else if (autotune[LX] == 2 ) { \
107 CASE_KSTEP(LX); \
108 } \
109 break
110
111 switch(*lx) {
112 CASE(2);
113 CASE(3);
114 CASE(4);
115 CASE(5);
116 CASE(6);
117 CASE(7);
118 CASE(8);
119 CASE(9);
120 CASE(10);
121 CASE(11);
122 CASE(12);
123 default:
124 {
125 fprintf(stderr, __FILE__ ": size not supported: %d\n", *lx);
126 exit(1);
127 }
128 }
129 }
130}
131
132template < const int LX >
133int tune_lambda2(void *lambda2, void *u, void *v, void *w,
134 void *dx, void *dy, void *dz,
135 void *drdx, void *dsdx, void *dtdx,
136 void *drdy, void *dsdy, void *dtdy,
137 void *drdz, void *dsdz, void *dtdz,
138 void *jacinv, int *nel, int *lx) {
139 cudaEvent_t start,stop;
140 float time1,time2;
141 int retval;
142
143 const dim3 nthrds_1d(1024, 1, 1);
144 const dim3 nthrds_kstep((*lx), (*lx), 1);
145 const dim3 nblcks((*nel), 1, 1);
146 const cudaStream_t stream = (cudaStream_t) glb_cmd_queue;
147
148 char *env_value = NULL;
149 char neko_log_buf[80];
150
151 env_value=getenv("NEKO_AUTOTUNE");
152
153 sprintf(neko_log_buf, "Autotune lambda2 (lx: %d)", *lx);
154 log_section(neko_log_buf);
155
156 if(env_value) {
157 if( !strcmp(env_value,"1D") ) {
158 CASE_1D(LX);
159 sprintf(neko_log_buf,"Set by env : 1 (1D)");
160 log_message(neko_log_buf);
161 log_end_section();
162 return 1;
163 } else if( !strcmp(env_value,"KSTEP") ) {
164 CASE_KSTEP(LX);
165 sprintf(neko_log_buf,"Set by env : 2 (KSTEP)");
166 log_message(neko_log_buf);
167 log_end_section();
168 return 2;
169 } else {
170 sprintf(neko_log_buf, "Invalid value set for NEKO_AUTOTUNE");
171 log_error(neko_log_buf);
172 }
173 }
174
175 cudaEventCreate(&start);
176 cudaEventCreate(&stop);
177
178 cudaEventRecord(start,0);
179
180 for(int i = 0; i < 100; i++) {
181 CASE_1D(LX);
182 }
183
184 cudaEventRecord(stop,0);
185 cudaEventSynchronize(stop);
186 cudaEventElapsedTime(&time1, start, stop);
187
188 cudaEventRecord(start,0);
189
190 for(int i = 0; i < 100; i++) {
191 CASE_KSTEP(LX);
192 }
193
194 cudaEventRecord(stop,0);
195 cudaEventSynchronize(stop);
196 cudaEventElapsedTime(&time2, start, stop);
197
198 if(time1 < time2) {
199 retval = 1;
200 } else {
201 retval = 2;
202 }
203
204 sprintf(neko_log_buf, "Chose : %d (%s)", retval,
205 (retval > 1 ? "KSTEP" : "1D"));
206 log_message(neko_log_buf);
207 log_end_section();
208 return retval;
209}
210
drdy
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ drdy
Definition ax_helm_full_kernel.h:54
drdz
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ drdz
Definition ax_helm_full_kernel.h:55
dsdz
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dsdz
Definition ax_helm_full_kernel.h:58
dsdy
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dsdy
Definition ax_helm_full_kernel.h:57
w
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ w
Definition ax_helm_full_kernel.h:48
i
const int i
Definition ax_helm_full_kernel.h:95
dtdy
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dtdy
Definition ax_helm_full_kernel.h:60
u
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ u
Definition ax_helm_full_kernel.h:46
dx
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dx
Definition ax_helm_full_kernel.h:49
drdx
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ drdx
Definition ax_helm_full_kernel.h:53
dtdz
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dtdz
Definition ax_helm_full_kernel.h:61
dsdx
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dsdx
Definition ax_helm_full_kernel.h:56
v
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ v
Definition ax_helm_full_kernel.h:47
dtdx
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dtdx
Definition ax_helm_full_kernel.h:59
dz
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dz
Definition ax_helm_full_kernel.h:51
dy
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dy
Definition ax_helm_full_kernel.h:50
jacinv
__global__ void T *__restrict__ T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ jacinv
Definition ax_helm_full_kernel.h:62
dirichlet_apply_scalar_kernel
__global__ void dirichlet_apply_scalar_kernel(const int *__restrict__ msk, T *__restrict__ x, const T g, const int m)
Definition dirichlet_kernel.h:42
uy
__global__ void T *__restrict__ uy
Definition opgrad_kernel.h:126
uz
__global__ void T *__restrict__ T *__restrict__ uz
Definition opgrad_kernel.h:127
device_config.h
lambda2_kernel.h
lambda2
A simulation component that computes lambda2 The values are stored in the field registry under the na...
Definition lambda2.f90:37
neko_log.h
log_error
void log_error(char *msg)
log_message
void log_message(char *msg)
log_end_section
void log_end_section()
log_section
void log_section(char *msg)
CASE
#define CASE(LX)
CASE_KSTEP
#define CASE_KSTEP(LX)
CASE_1D
#define CASE_1D(LX)
tune_lambda2
int tune_lambda2(void *ux, void *uy, void *uz, void *u, void *dx, void *dy, void *dz, void *drdx, void *dsdx, void *dtdx, void *drdy, void *dsdy, void *dtdy, void *drdz, void *dsdz, void *dtdz, void *jacinv, int *nel, int *lx)
Definition opr_lambda2.cu:133
cuda_lambda2
void cuda_lambda2(void *lambda2, void *u, void *v, void *w, void *dx, void *dy, void *dz, void *drdx, void *dsdx, void *dtdx, void *drdy, void *dsdy, void *dtdy, void *drdz, void *dsdz, void *dtdz, void *jacinv, int *nel, int *lx)
Definition opr_lambda2.cu:59