This repository was archived by the owner on Aug 11, 2023. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 89
Expand file tree
/
Copy pathbuiltin-kernel-example.cpp
More file actions
120 lines (101 loc) · 3.56 KB
/
Copy pathbuiltin-kernel-example.cpp
File metadata and controls
120 lines (101 loc) · 3.56 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
/***************************************************************************
*
* Copyright (C) 2018 Codeplay Software Limited
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* For your convenience, a copy of the License has been included in this
* repository.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Codeplay's ComputeCpp SDK
*
* builtin_kernel_example.cpp
*
* Description:
* Example of using an OpenCL builtin kernel with SYCL via the codeplay
* extension
*
**************************************************************************/
#include <CL/sycl.hpp>
#include <array>
#include <iostream>
using namespace cl::sycl;
int main() {
queue testQueue;
context testContext = testQueue.get_context();
device dev = testContext.get_devices()[0];
/*
* Using the device properties, we can query which built in kernels
* are supported
*/
auto builtinKernels = dev.get_info<info::device::built_in_kernels>();
if (builtinKernels.size() == 0) {
std::cout << "[EXIT] No built-in kernels available for testing "
<< std::endl;
return 0;
}
/*
* The only builtin kernel supported by this example is the
* ComputeAorta copy buffer, defined as:
* copy_buffer(__global * in, __global * out)
* And copies input into output.
*/
const std::string kAortaTestKernelName{"copy_buffer"};
auto kernelNamePos =
std::find(std::begin(builtinKernels), std::end(builtinKernels),
kAortaTestKernelName);
if (kernelNamePos == std::end(builtinKernels)) {
std::cout << "[EXIT] Only ComputeAorta test built-in kernel is supported "
<< " on this example " << std::endl;
return 0;
}
const float goldenValue = 1234.0f;
float input = goldenValue;
float output = 0;
{
buffer<float, 1> buf(&input, range<1>(1));
buffer<float, 1> bufOut(range<1>(1));
bufOut.set_final_data(&output);
program syclProgram(testContext);
/*
* The "create_from_built_in_kernel" method from the
* ComputeCpp program class uses the clCreateProgramWithBultinKernels
* to load the OpenCL builtin kernels into the SYCL program object.
*/
syclProgram.create_from_built_in_kernel(kAortaTestKernelName);
kernel kernelC(syclProgram.get_kernel(kAortaTestKernelName));
testQueue.submit([&](handler& cgh) {
auto accIn = buf.get_access<access::mode::read>(cgh);
auto accOut = bufOut.get_access<access::mode::write>(cgh);
/* Using the OpenCL interoperability to set the kernel
* arguments to match the accessors to the builtin kernel
* arguments.
*/
cgh.set_arg(0, accIn);
cgh.set_arg(1, accOut);
auto myRange = range<1>{1};
/* The kernel can be dispatched to the device using the
* parallel_for dispatch function.
* In this case, since the range is 1, the single_task could
* also have been used.
*/
cgh.parallel_for(myRange, kernelC);
});
}
int retVal = 0;
if (input != output) {
std::cout << " The result of the builtin kernel is not expected!"
<< std::endl;
retVal = 1;
}
return retVal;
}