blob: a671d43fbdbc1902941018c06b7c98481b1cee55 (
plain)
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
|
// cuda-query.cpp
#include "cuda-query.h"
namespace gfx
{
#ifdef GFX_ENABLE_CUDA
using namespace Slang;
namespace cuda
{
Result QueryPoolImpl::init(const IQueryPool::Desc& desc)
{
cuEventCreate(&m_startEvent, 0);
cuEventRecord(m_startEvent, 0);
m_events.setCount(desc.count);
for (SlangInt i = 0; i < m_events.getCount(); i++)
{
cuEventCreate(&m_events[i], 0);
}
return SLANG_OK;
}
QueryPoolImpl::~QueryPoolImpl()
{
for (auto& e : m_events)
{
cuEventDestroy(e);
}
cuEventDestroy(m_startEvent);
}
SLANG_NO_THROW Result SLANG_MCALL
QueryPoolImpl::getResult(GfxIndex queryIndex, GfxCount count, uint64_t* data)
{
for (GfxIndex i = 0; i < count; i++)
{
float time = 0.0f;
cuEventSynchronize(m_events[i + queryIndex]);
cuEventElapsedTime(&time, m_startEvent, m_events[i + queryIndex]);
data[i] = (uint64_t)((double)time * 1000.0f);
}
return SLANG_OK;
}
} // namespace cuda
#endif
} // namespace gfx
|
