Neko  0.9.99
A portable framework for high-order spectral element flow simulations
opr_cfl.c
Go to the documentation of this file.
1 /*
2  Copyright (c) 2022-2024, 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 #ifdef __APPLE__
36 #include <OpenCL/cl.h>
37 #else
38 #include <CL/cl.h>
39 #endif
40 
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <math.h>
44 #include <device/device_config.h>
45 #include <device/opencl/jit.h>
46 #include <device/opencl/prgm_lib.h>
47 #include <device/opencl/check.h>
48 
49 #include "cfl_kernel.cl.h"
50 
54 real opencl_cfl(real *dt, void *u, void *v, void *w,
55  void *drdx, void *dsdx, void *dtdx,
56  void *drdy, void *dsdy, void *dtdy,
57  void *drdz, void *dsdz, void *dtdz,
58  void *dr_inv, void *ds_inv, void *dt_inv,
59  void *jacinv, int *nel, int *lx) {
60  cl_int err;
61  cl_event kern_wait;
62  int i;
63  if (cfl_program == NULL)
64  opencl_kernel_jit(cfl_kernel, (cl_program *) &cfl_program);
65 
66  const size_t global_item_size = 256 * (*nel);
67  const size_t local_item_size = 256;
68 
69  real * cfl = (real *) malloc((*nel) * sizeof(real));
70  cl_mem cfl_d = clCreateBuffer(glb_ctx, CL_MEM_READ_WRITE,
71  (*nel) * sizeof(real), NULL, &err);
72  CL_CHECK(err);
73 
74 #define STR(X) #X
75 #define CASE(LX) \
76  case LX: \
77  { \
78  cl_kernel kernel = clCreateKernel(cfl_program, \
79  STR(cfl_kernel_lx##LX), &err); \
80  CL_CHECK(err); \
81  \
82  CL_CHECK(clSetKernelArg(kernel, 0, sizeof(real), dt)); \
83  CL_CHECK(clSetKernelArg(kernel, 1, sizeof(cl_mem), (void *) &u)); \
84  CL_CHECK(clSetKernelArg(kernel, 2, sizeof(cl_mem), (void *) &v)); \
85  CL_CHECK(clSetKernelArg(kernel, 3, sizeof(cl_mem), (void *) &w)); \
86  CL_CHECK(clSetKernelArg(kernel, 4, sizeof(cl_mem), (void *) &drdx)); \
87  CL_CHECK(clSetKernelArg(kernel, 5, sizeof(cl_mem), (void *) &dsdx)); \
88  CL_CHECK(clSetKernelArg(kernel, 6, sizeof(cl_mem), (void *) &dtdx)); \
89  CL_CHECK(clSetKernelArg(kernel, 7, sizeof(cl_mem), (void *) &drdy)); \
90  CL_CHECK(clSetKernelArg(kernel, 8, sizeof(cl_mem), (void *) &dsdy)); \
91  CL_CHECK(clSetKernelArg(kernel, 9, sizeof(cl_mem), (void *) &dtdy)); \
92  CL_CHECK(clSetKernelArg(kernel, 10, sizeof(cl_mem), (void *) &drdz)); \
93  CL_CHECK(clSetKernelArg(kernel, 11, sizeof(cl_mem), (void *) &dsdz)); \
94  CL_CHECK(clSetKernelArg(kernel, 12, sizeof(cl_mem), (void *) &dtdz)); \
95  CL_CHECK(clSetKernelArg(kernel, 13, sizeof(cl_mem), (void *) &dr_inv)); \
96  CL_CHECK(clSetKernelArg(kernel, 14, sizeof(cl_mem), (void *) &ds_inv)); \
97  CL_CHECK(clSetKernelArg(kernel, 15, sizeof(cl_mem), (void *) &dt_inv)); \
98  CL_CHECK(clSetKernelArg(kernel, 16, sizeof(cl_mem), (void *) &jacinv)); \
99  CL_CHECK(clSetKernelArg(kernel, 17, sizeof(cl_mem), (void *) &cfl_d)); \
100  \
101  CL_CHECK(clEnqueueNDRangeKernel((cl_command_queue) glb_cmd_queue, \
102  kernel, 1, NULL, &global_item_size, \
103  &local_item_size, 0, NULL, &kern_wait)); \
104  } \
105  break
106 
107  switch(*lx) {
108  CASE(2);
109  CASE(3);
110  CASE(4);
111  CASE(5);
112  CASE(6);
113  CASE(7);
114  CASE(8);
115  CASE(9);
116  CASE(10);
117  CASE(11);
118  CASE(12);
119  }
120 
121  CL_CHECK(clEnqueueReadBuffer((cl_command_queue) glb_cmd_queue,
122  cfl_d, CL_TRUE, 0, (*nel) * sizeof(real),
123  cfl, 1, &kern_wait, NULL));
124 
125  real cfl_max = 0.0;
126  for (i = 0; i < (*nel); i++) {
127  cfl_max = fmax(cfl_max, cfl[i]);
128  }
129 
130  free(cfl);
131  CL_CHECK(clReleaseMemObject(cfl_d));
132 
133  return cfl_max;
134 
135 }
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
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
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
dt
__global__ void const T *__restrict__ const T *__restrict__ const T *__restrict__ const T *__restrict__ dt
Definition: cdtp_kernel.h:109
cfl_kernel
__global__ void cfl_kernel(const T dt, const T *__restrict__ u, const T *__restrict__ v, const T *__restrict__ w, const T *__restrict__ drdx, const T *__restrict__ dsdx, const T *__restrict__ dtdx, const T *__restrict__ drdy, const T *__restrict__ dsdy, const T *__restrict__ dtdy, const T *__restrict__ drdz, const T *__restrict__ dsdz, const T *__restrict__ dtdz, const T *__restrict__ dr_inv, const T *__restrict__ ds_inv, const T *__restrict__ dt_inv, const T *__restrict__ jacinv, T *__restrict__ cfl_h)
Definition: cfl_kernel.h:87
device_config.h
real
double real
Definition: device_config.h:12
glb_cmd_queue
void * glb_cmd_queue
glb_ctx
void * glb_ctx
opencl_kernel_jit
void opencl_kernel_jit(const char *kernel, cl_program *program)
Definition: jit.c:50
operators::cfl
real(kind=rp) function, public cfl(dt, u, v, w, Xh, coef, nelv, gdim)
Definition: operators.f90:394
CL_CHECK
#define CL_CHECK(err)
Definition: check.h:12
CASE
#define CASE(LX)
opencl_cfl
real opencl_cfl(real *dt, void *u, void *v, void *w, void *drdx, void *dsdx, void *dtdx, void *drdy, void *dsdy, void *dtdy, void *drdz, void *dsdz, void *dtdz, void *dr_inv, void *ds_inv, void *dt_inv, void *jacinv, int *nel, int *lx)
Definition: opr_cfl.c:54
cfl_d
real * cfl_d
Definition: opr_cfl.cu:49
prgm_lib.h
cfl_program
void * cfl_program