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|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <config_folders.h>
#include "opencl_device.hxx"
#include <comphelper/string.hxx>
#include <opencl/openclconfig.hxx>
#include <opencl/openclwrapper.hxx>
#include <osl/file.hxx>
#include <rtl/bootstrap.hxx>
#include <rtl/digest.h>
#include <rtl/strbuf.hxx>
#include <rtl/ustring.hxx>
#include <sal/config.h>
#include <sal/log.hxx>
#include <memory>
#include <unicode/regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <cmath>
#ifdef _WIN32
#include <prewin.h>
#include <postwin.h>
#define OPENCL_DLL_NAME "OpenCL.dll"
#elif defined(MACOSX)
#define OPENCL_DLL_NAME nullptr
#else
#define OPENCL_DLL_NAME "libOpenCL.so.1"
#endif
#define DEVICE_NAME_LENGTH 1024
#define DRIVER_VERSION_LENGTH 1024
#define PLATFORM_VERSION_LENGTH 1024
#define CHECK_OPENCL(status,name) \
if( status != CL_SUCCESS ) \
{ \
SAL_WARN( "opencl", "OpenCL error code " << status << " at " SAL_DETAIL_WHERE " from " name ); \
return false; \
}
using namespace std;
namespace opencl {
GPUEnv gpuEnv;
namespace {
bool bIsInited = false;
OString generateMD5(const void* pData, size_t length)
{
sal_uInt8 pBuffer[RTL_DIGEST_LENGTH_MD5];
rtlDigestError aError = rtl_digest_MD5(pData, length,
pBuffer, RTL_DIGEST_LENGTH_MD5);
SAL_WARN_IF(aError != rtl_Digest_E_None, "opencl", "md5 generation failed");
OStringBuffer aBuffer;
const char* pString = "0123456789ABCDEF";
for(size_t i = 0; i < RTL_DIGEST_LENGTH_MD5; ++i)
{
sal_uInt8 val = pBuffer[i];
aBuffer.append(pString[val/16]);
aBuffer.append(pString[val%16]);
}
return aBuffer.makeStringAndClear();
}
OString getCacheFolder()
{
OUString url("${$BRAND_BASE_DIR/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE("bootstrap") ":UserInstallation}/cache/");
rtl::Bootstrap::expandMacros(url);
osl::Directory::create(url);
return rtl::OUStringToOString(url, RTL_TEXTENCODING_UTF8);
}
OString maCacheFolder = getCacheFolder();
}
void setKernelEnv( KernelEnv *envInfo )
{
envInfo->mpkContext = gpuEnv.mpContext;
envInfo->mpkProgram = gpuEnv.mpArryPrograms[0];
assert(gpuEnv.mnCmdQueuePos < OPENCL_CMDQUEUE_SIZE);
envInfo->mpkCmdQueue = gpuEnv.mpCmdQueue[gpuEnv.mnCmdQueuePos];
}
namespace {
OString createFileName(cl_device_id deviceId, const char* clFileName)
{
OString fileName(clFileName);
sal_Int32 nIndex = fileName.lastIndexOf(".cl");
if(nIndex > 0)
fileName = fileName.copy(0, nIndex);
char deviceName[DEVICE_NAME_LENGTH] = {0};
clGetDeviceInfo(deviceId, CL_DEVICE_NAME,
sizeof(deviceName), deviceName, nullptr);
char driverVersion[DRIVER_VERSION_LENGTH] = {0};
clGetDeviceInfo(deviceId, CL_DRIVER_VERSION,
sizeof(driverVersion), driverVersion, nullptr);
cl_platform_id platformId;
clGetDeviceInfo(deviceId, CL_DEVICE_PLATFORM,
sizeof(platformId), &platformId, nullptr);
char platformVersion[PLATFORM_VERSION_LENGTH] = {0};
clGetPlatformInfo(platformId, CL_PLATFORM_VERSION, sizeof(platformVersion),
platformVersion, nullptr);
// create hash for deviceName + driver version + platform version
OString aString = OString(deviceName) + driverVersion + platformVersion;
OString aHash = generateMD5(aString.getStr(), aString.getLength());
return maCacheFolder + fileName + "-" +
aHash + ".bin";
}
std::vector<std::shared_ptr<osl::File> > binaryGenerated( const char * clFileName, cl_context context )
{
size_t numDevices=0;
std::vector<std::shared_ptr<osl::File> > aGeneratedFiles;
cl_int clStatus = clGetContextInfo( context, CL_CONTEXT_DEVICES,
0, nullptr, &numDevices );
numDevices /= sizeof(numDevices);
if(clStatus != CL_SUCCESS)
return aGeneratedFiles;
assert(numDevices == 1);
// grab the handle to the device in the context.
cl_device_id pDevID;
clStatus = clGetContextInfo( context, CL_CONTEXT_DEVICES,
sizeof( cl_device_id ), &pDevID, nullptr );
if(clStatus != CL_SUCCESS)
return aGeneratedFiles;
assert(pDevID == gpuEnv.mpDevID);
OString fileName = createFileName(gpuEnv.mpDevID, clFileName);
osl::File* pNewFile = new osl::File(rtl::OStringToOUString(fileName, RTL_TEXTENCODING_UTF8));
if(pNewFile->open(osl_File_OpenFlag_Read) == osl::FileBase::E_None)
{
aGeneratedFiles.push_back(std::shared_ptr<osl::File>(pNewFile));
SAL_INFO("opencl.file", "Opening binary file '" << fileName << "' for reading: success");
}
else
{
SAL_INFO("opencl.file", "Opening binary file '" << fileName << "' for reading: FAIL");
delete pNewFile;
}
return aGeneratedFiles;
}
bool writeBinaryToFile( const OString& rFileName, const char* binary, size_t numBytes )
{
osl::File file(rtl::OStringToOUString(rFileName, RTL_TEXTENCODING_UTF8));
osl::FileBase::RC status = file.open(
osl_File_OpenFlag_Write | osl_File_OpenFlag_Create );
if(status != osl::FileBase::E_None)
return false;
sal_uInt64 nBytesWritten = 0;
file.write( binary, numBytes, nBytesWritten );
assert(numBytes == nBytesWritten);
return true;
}
}
bool generatBinFromKernelSource( cl_program program, const char * clFileName )
{
cl_uint numDevices;
cl_int clStatus = clGetProgramInfo( program, CL_PROGRAM_NUM_DEVICES,
sizeof(numDevices), &numDevices, nullptr );
CHECK_OPENCL( clStatus, "clGetProgramInfo" );
assert(numDevices == 1);
cl_device_id pDevID;
/* grab the handle to the device in the program. */
clStatus = clGetProgramInfo( program, CL_PROGRAM_DEVICES,
sizeof(cl_device_id), &pDevID, nullptr );
CHECK_OPENCL( clStatus, "clGetProgramInfo" );
/* figure out the size of the binary. */
size_t binarySize;
clStatus = clGetProgramInfo( program, CL_PROGRAM_BINARY_SIZES,
sizeof(size_t), &binarySize, nullptr );
CHECK_OPENCL( clStatus, "clGetProgramInfo" );
/* copy over the generated binary. */
if ( binarySize != 0 )
{
std::unique_ptr<char[]> binary(new char[binarySize]);
clStatus = clGetProgramInfo( program, CL_PROGRAM_BINARIES,
sizeof(char *), &binary, nullptr );
CHECK_OPENCL(clStatus,"clGetProgramInfo");
OString fileName = createFileName(pDevID, clFileName);
if ( !writeBinaryToFile( fileName,
binary.get(), binarySize ) )
SAL_INFO("opencl.file", "Writing binary file '" << fileName << "': FAIL");
else
SAL_INFO("opencl.file", "Writing binary file '" << fileName << "': success");
}
return true;
}
namespace {
struct OpenCLEnv
{
cl_platform_id mpOclPlatformID;
cl_context mpOclContext;
cl_device_id mpOclDevsID;
cl_command_queue mpOclCmdQueue[OPENCL_CMDQUEUE_SIZE];
};
bool initOpenCLAttr( OpenCLEnv * env )
{
if ( gpuEnv.mnIsUserCreated )
return true;
gpuEnv.mpContext = env->mpOclContext;
gpuEnv.mpPlatformID = env->mpOclPlatformID;
gpuEnv.mpDevID = env->mpOclDevsID;
gpuEnv.mnIsUserCreated = 1;
for (int i = 0; i < OPENCL_CMDQUEUE_SIZE; ++i)
gpuEnv.mpCmdQueue[i] = env->mpOclCmdQueue[i];
gpuEnv.mnCmdQueuePos = 0; // default to 0.
return false;
}
void releaseOpenCLEnv( GPUEnv *gpuInfo )
{
if ( !bIsInited )
{
return;
}
for (int i = 0; i < OPENCL_CMDQUEUE_SIZE; ++i)
{
if (gpuEnv.mpCmdQueue[i])
{
clReleaseCommandQueue(gpuEnv.mpCmdQueue[i]);
gpuEnv.mpCmdQueue[i] = nullptr;
}
}
gpuEnv.mnCmdQueuePos = 0;
if ( gpuEnv.mpContext )
{
clReleaseContext( gpuEnv.mpContext );
gpuEnv.mpContext = nullptr;
}
bIsInited = false;
gpuInfo->mnIsUserCreated = 0;
return;
}
bool buildProgram(const char* buildOption, GPUEnv* gpuInfo, int idx)
{
cl_int clStatus;
//char options[512];
// create a cl program executable for all the devices specified
clStatus = clBuildProgram(gpuInfo->mpArryPrograms[idx], 1, &gpuInfo->mpDevID,
buildOption, nullptr, nullptr);
if ( clStatus != CL_SUCCESS )
{
size_t length;
clStatus = clGetProgramBuildInfo( gpuInfo->mpArryPrograms[idx], gpuInfo->mpDevID,
CL_PROGRAM_BUILD_LOG, 0, nullptr, &length);
if ( clStatus != CL_SUCCESS )
{
return false;
}
std::unique_ptr<char[]> buildLog(new char[length]);
clStatus = clGetProgramBuildInfo( gpuInfo->mpArryPrograms[idx], gpuInfo->mpDevID,
CL_PROGRAM_BUILD_LOG, length, buildLog.get(), &length );
if ( clStatus != CL_SUCCESS )
{
return false;
}
OString aBuildLogFileURL = maCacheFolder + "kernel-build.log";
osl::File aBuildLogFile(rtl::OStringToOUString(aBuildLogFileURL, RTL_TEXTENCODING_UTF8));
osl::FileBase::RC status = aBuildLogFile.open(
osl_File_OpenFlag_Write | osl_File_OpenFlag_Create );
if(status != osl::FileBase::E_None)
return false;
sal_uInt64 nBytesWritten = 0;
aBuildLogFile.write( buildLog.get(), length, nBytesWritten );
return false;
}
return true;
}
}
bool buildProgramFromBinary(const char* buildOption, GPUEnv* gpuInfo, const char* filename, int idx)
{
size_t numDevices;
cl_int clStatus = clGetContextInfo( gpuInfo->mpContext, CL_CONTEXT_DEVICES,
0, nullptr, &numDevices );
numDevices /= sizeof(numDevices);
CHECK_OPENCL( clStatus, "clGetContextInfo" );
std::vector<std::shared_ptr<osl::File> > aGeneratedFiles = binaryGenerated(
filename, gpuInfo->mpContext );
if (aGeneratedFiles.size() == numDevices)
{
std::unique_ptr<size_t[]> length(new size_t[numDevices]);
std::unique_ptr<unsigned char*[]> pBinary(new unsigned char*[numDevices]);
for(size_t i = 0; i < numDevices; ++i)
{
sal_uInt64 nSize;
aGeneratedFiles[i]->getSize(nSize);
unsigned char* binary = new unsigned char[nSize];
sal_uInt64 nBytesRead;
aGeneratedFiles[i]->read(binary, nSize, nBytesRead);
if(nSize != nBytesRead)
assert(false);
length[i] = nBytesRead;
pBinary[i] = binary;
}
// grab the handles to all of the devices in the context.
std::unique_ptr<cl_device_id[]> pArryDevsID(new cl_device_id[numDevices]);
clStatus = clGetContextInfo( gpuInfo->mpContext, CL_CONTEXT_DEVICES,
sizeof( cl_device_id ) * numDevices, pArryDevsID.get(), nullptr );
if(clStatus != CL_SUCCESS)
{
for(size_t i = 0; i < numDevices; ++i)
{
delete[] pBinary[i];
}
return false;
}
cl_int binary_status;
gpuInfo->mpArryPrograms[idx] = clCreateProgramWithBinary( gpuInfo->mpContext,numDevices,
pArryDevsID.get(), length.get(), const_cast<const unsigned char**>(pBinary.get()),
&binary_status, &clStatus );
if(clStatus != CL_SUCCESS)
{
// something went wrong, fall back to compiling from source
return false;
}
SAL_INFO("opencl", "Created program " << gpuInfo->mpArryPrograms[idx] << " from binary");
for(size_t i = 0; i < numDevices; ++i)
{
delete[] pBinary[i];
}
}
if ( !gpuInfo->mpArryPrograms[idx] )
{
return false;
}
return buildProgram(buildOption, gpuInfo, idx);
}
namespace {
void checkDeviceForDoubleSupport(cl_device_id deviceId, bool& bKhrFp64, bool& bAmdFp64)
{
bKhrFp64 = false;
bAmdFp64 = false;
// Check device extensions for double type
size_t aDevExtInfoSize = 0;
cl_uint clStatus = clGetDeviceInfo( deviceId, CL_DEVICE_EXTENSIONS, 0, nullptr, &aDevExtInfoSize );
if( clStatus != CL_SUCCESS )
return;
std::unique_ptr<char[]> pExtInfo(new char[aDevExtInfoSize]);
clStatus = clGetDeviceInfo( deviceId, CL_DEVICE_EXTENSIONS,
sizeof(char) * aDevExtInfoSize, pExtInfo.get(), nullptr);
if( clStatus != CL_SUCCESS )
return;
if ( strstr( pExtInfo.get(), "cl_khr_fp64" ) )
{
bKhrFp64 = true;
}
else
{
// Check if cl_amd_fp64 extension is supported
if ( strstr( pExtInfo.get(), "cl_amd_fp64" ) )
bAmdFp64 = true;
}
}
bool initOpenCLRunEnv( GPUEnv *gpuInfo )
{
bool bKhrFp64 = false;
bool bAmdFp64 = false;
checkDeviceForDoubleSupport(gpuInfo->mpDevID, bKhrFp64, bAmdFp64);
gpuInfo->mnKhrFp64Flag = bKhrFp64;
gpuInfo->mnAmdFp64Flag = bAmdFp64;
gpuInfo->mnPreferredVectorWidthFloat = 0;
clGetDeviceInfo(gpuInfo->mpDevID, CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT, sizeof(cl_uint),
&gpuInfo->mnPreferredVectorWidthFloat, nullptr);
return false;
}
bool initOpenCLRunEnv( int argc )
{
if ( ( argc > MAX_CLFILE_NUM ) || ( argc < 0 ) )
return true;
if ( !bIsInited )
{
if ( !gpuEnv.mnIsUserCreated )
memset( &gpuEnv, 0, sizeof(gpuEnv) );
//initialize devices, context, command_queue
bool status = initOpenCLRunEnv( &gpuEnv );
if ( status )
{
return true;
}
//initialize program, kernelName, kernelCount
if( getenv( "SC_FLOAT" ) )
{
gpuEnv.mnKhrFp64Flag = false;
gpuEnv.mnAmdFp64Flag = false;
}
if( gpuEnv.mnKhrFp64Flag )
{
SAL_INFO("opencl", "Use Khr double");
}
else if( gpuEnv.mnAmdFp64Flag )
{
SAL_INFO("opencl", "Use AMD double type");
}
else
{
SAL_INFO("opencl", "USE float type");
}
bIsInited = true;
}
return false;
}
// based on crashes and hanging during kernel compilation
void createDeviceInfo(cl_device_id aDeviceId, OpenCLPlatformInfo& rPlatformInfo)
{
OpenCLDeviceInfo aDeviceInfo;
aDeviceInfo.device = aDeviceId;
char pName[DEVICE_NAME_LENGTH];
cl_int nState = clGetDeviceInfo(aDeviceId, CL_DEVICE_NAME, DEVICE_NAME_LENGTH, pName, nullptr);
if(nState != CL_SUCCESS)
return;
aDeviceInfo.maName = OUString::createFromAscii(pName);
char pVendor[DEVICE_NAME_LENGTH];
nState = clGetDeviceInfo(aDeviceId, CL_DEVICE_VENDOR, DEVICE_NAME_LENGTH, pVendor, nullptr);
if(nState != CL_SUCCESS)
return;
aDeviceInfo.maVendor = OUString::createFromAscii(pVendor);
cl_ulong nMemSize;
nState = clGetDeviceInfo(aDeviceId, CL_DEVICE_GLOBAL_MEM_SIZE, sizeof(nMemSize), &nMemSize, nullptr);
if(nState != CL_SUCCESS)
return;
aDeviceInfo.mnMemory = nMemSize;
cl_uint nClockFrequency;
nState = clGetDeviceInfo(aDeviceId, CL_DEVICE_MAX_CLOCK_FREQUENCY, sizeof(nClockFrequency), &nClockFrequency, nullptr);
if(nState != CL_SUCCESS)
return;
aDeviceInfo.mnFrequency = nClockFrequency;
cl_uint nComputeUnits;
nState = clGetDeviceInfo(aDeviceId, CL_DEVICE_MAX_COMPUTE_UNITS, sizeof(nComputeUnits), &nComputeUnits, nullptr);
if(nState != CL_SUCCESS)
return;
char pDriver[DEVICE_NAME_LENGTH];
nState = clGetDeviceInfo(aDeviceId, CL_DRIVER_VERSION, DEVICE_NAME_LENGTH, pDriver, nullptr);
if(nState != CL_SUCCESS)
return;
aDeviceInfo.maDriver = OUString::createFromAscii(pDriver);
bool bKhrFp64 = false;
bool bAmdFp64 = false;
checkDeviceForDoubleSupport(aDeviceId, bKhrFp64, bAmdFp64);
// only list devices that support double
if(!bKhrFp64 && !bAmdFp64)
return;
aDeviceInfo.mnComputeUnits = nComputeUnits;
if(!OpenCLConfig::get().checkImplementation(rPlatformInfo, aDeviceInfo))
rPlatformInfo.maDevices.push_back(aDeviceInfo);
}
bool createPlatformInfo(cl_platform_id nPlatformId, OpenCLPlatformInfo& rPlatformInfo)
{
rPlatformInfo.platform = nPlatformId;
char pName[64];
cl_int nState = clGetPlatformInfo(nPlatformId, CL_PLATFORM_NAME, 64,
pName, nullptr);
if(nState != CL_SUCCESS)
return false;
rPlatformInfo.maName = OUString::createFromAscii(pName);
char pVendor[64];
nState = clGetPlatformInfo(nPlatformId, CL_PLATFORM_VENDOR, 64,
pVendor, nullptr);
if(nState != CL_SUCCESS)
return false;
rPlatformInfo.maVendor = OUString::createFromAscii(pVendor);
cl_uint nDevices;
nState = clGetDeviceIDs(nPlatformId, CL_DEVICE_TYPE_ALL, 0, nullptr, &nDevices);
if(nState != CL_SUCCESS)
return false;
// memory leak that does not matter
// memory is stored in static variable that lives through the whole program
cl_device_id* pDevices = new cl_device_id[nDevices];
nState = clGetDeviceIDs(nPlatformId, CL_DEVICE_TYPE_ALL, nDevices, pDevices, nullptr);
if(nState != CL_SUCCESS)
return false;
for(size_t i = 0; i < nDevices; ++i)
{
createDeviceInfo(pDevices[i], rPlatformInfo);
}
return true;
}
}
const std::vector<OpenCLPlatformInfo>& fillOpenCLInfo()
{
static std::vector<OpenCLPlatformInfo> aPlatforms;
if(!aPlatforms.empty())
return aPlatforms;
int status = clewInit(OPENCL_DLL_NAME);
if (status < 0)
return aPlatforms;
cl_uint nPlatforms;
cl_int nState = clGetPlatformIDs(0, nullptr, &nPlatforms);
if(nState != CL_SUCCESS)
return aPlatforms;
// memory leak that does not matter,
// memory is stored in static instance aPlatforms
cl_platform_id* pPlatforms = new cl_platform_id[nPlatforms];
nState = clGetPlatformIDs(nPlatforms, pPlatforms, nullptr);
if(nState != CL_SUCCESS)
return aPlatforms;
for(size_t i = 0; i < nPlatforms; ++i)
{
OpenCLPlatformInfo aPlatformInfo;
if(createPlatformInfo(pPlatforms[i], aPlatformInfo))
aPlatforms.push_back(aPlatformInfo);
}
return aPlatforms;
}
namespace {
cl_device_id findDeviceIdByDeviceString(const OUString& rString, const std::vector<OpenCLPlatformInfo>& rPlatforms)
{
std::vector<OpenCLPlatformInfo>::const_iterator it = rPlatforms.begin(), itEnd = rPlatforms.end();
for(; it != itEnd; ++it)
{
std::vector<OpenCLDeviceInfo>::const_iterator itr = it->maDevices.begin(), itrEnd = it->maDevices.end();
for(; itr != itrEnd; ++itr)
{
OUString aDeviceId = it->maVendor + " " + itr->maName;
if(rString == aDeviceId)
{
return static_cast<cl_device_id>(itr->device);
}
}
}
return nullptr;
}
void findDeviceInfoFromDeviceId(cl_device_id aDeviceId, size_t& rDeviceId, size_t& rPlatformId)
{
cl_platform_id platformId;
cl_int nState = clGetDeviceInfo(aDeviceId, CL_DEVICE_PLATFORM,
sizeof(platformId), &platformId, nullptr);
if(nState != CL_SUCCESS)
return;
const std::vector<OpenCLPlatformInfo>& rPlatforms = fillOpenCLInfo();
for(size_t i = 0; i < rPlatforms.size(); ++i)
{
cl_platform_id platId = static_cast<cl_platform_id>(rPlatforms[i].platform);
if(platId != platformId)
continue;
for(size_t j = 0; j < rPlatforms[i].maDevices.size(); ++j)
{
cl_device_id id = static_cast<cl_device_id>(rPlatforms[i].maDevices[j].device);
if(id == aDeviceId)
{
rDeviceId = j;
rPlatformId = i;
return;
}
}
}
}
}
bool switchOpenCLDevice(const OUString* pDevice, bool bAutoSelect, bool bForceEvaluation)
{
if(fillOpenCLInfo().empty())
return false;
cl_device_id pDeviceId = nullptr;
if(pDevice)
pDeviceId = findDeviceIdByDeviceString(*pDevice, fillOpenCLInfo());
if(!pDeviceId || bAutoSelect)
{
int status = clewInit(OPENCL_DLL_NAME);
if (status < 0)
return false;
OUString url("${$BRAND_BASE_DIR/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE("bootstrap") ":UserInstallation}/cache/");
rtl::Bootstrap::expandMacros(url);
OUString path;
osl::FileBase::getSystemPathFromFileURL(url,path);
OString dsFileName = rtl::OUStringToOString(path, RTL_TEXTENCODING_UTF8);
ds_device pSelectedDevice = getDeviceSelection(dsFileName.getStr(), bForceEvaluation);
pDeviceId = pSelectedDevice.oclDeviceID;
}
if(gpuEnv.mpDevID == pDeviceId)
{
// we don't need to change anything
// still the same device
return pDeviceId != nullptr;
}
cl_platform_id platformId;
cl_int nState = clGetDeviceInfo(pDeviceId, CL_DEVICE_PLATFORM,
sizeof(platformId), &platformId, nullptr);
cl_context_properties cps[3];
cps[0] = CL_CONTEXT_PLATFORM;
cps[1] = reinterpret_cast<cl_context_properties>(platformId);
cps[2] = 0;
cl_context context = clCreateContext( cps, 1, &pDeviceId, nullptr, nullptr, &nState );
if (nState != CL_SUCCESS)
SAL_WARN("opencl", "clCreateContext failed: " << errorString(nState));
if(nState != CL_SUCCESS || context == nullptr)
{
if(context != nullptr)
clReleaseContext(context);
SAL_WARN("opencl", "failed to set/switch opencl device");
return false;
}
SAL_INFO("opencl", "Created context " << context << " for platform " << platformId << ", device " << pDeviceId);
cl_command_queue command_queue[OPENCL_CMDQUEUE_SIZE];
for (int i = 0; i < OPENCL_CMDQUEUE_SIZE; ++i)
{
command_queue[i] = clCreateCommandQueue(
context, pDeviceId, 0, &nState);
if (nState != CL_SUCCESS)
SAL_WARN("opencl", "clCreateCommandQueue failed: " << errorString(nState));
if (command_queue[i] == nullptr || nState != CL_SUCCESS)
{
// Release all command queues created so far.
for (int j = 0; j <= i; ++j)
{
if (command_queue[j])
{
clReleaseCommandQueue(command_queue[j]);
command_queue[j] = nullptr;
}
}
clReleaseContext(context);
SAL_WARN("opencl", "failed to set/switch opencl device");
return false;
}
SAL_INFO("opencl", "Created command queue " << command_queue[i] << " for context " << context);
}
setOpenCLCmdQueuePosition(0); // Call this just to avoid the method being deleted from unused function deleter.
releaseOpenCLEnv(&gpuEnv);
OpenCLEnv env;
env.mpOclPlatformID = platformId;
env.mpOclContext = context;
env.mpOclDevsID = pDeviceId;
for (int i = 0; i < OPENCL_CMDQUEUE_SIZE; ++i)
env.mpOclCmdQueue[i] = command_queue[i];
initOpenCLAttr(&env);
return !initOpenCLRunEnv(0);
}
void getOpenCLDeviceInfo(size_t& rDeviceId, size_t& rPlatformId)
{
int status = clewInit(OPENCL_DLL_NAME);
if (status < 0)
return;
cl_device_id id = gpuEnv.mpDevID;
findDeviceInfoFromDeviceId(id, rDeviceId, rPlatformId);
}
void setOpenCLCmdQueuePosition( int nPos )
{
if (nPos < 0 || nPos >= OPENCL_CMDQUEUE_SIZE)
// Out of range. Ignore this.
return;
gpuEnv.mnCmdQueuePos = nPos;
}
const char* errorString(cl_int nError)
{
#define CASE(val) case CL_##val: return #val
switch (nError)
{
CASE(SUCCESS);
CASE(DEVICE_NOT_FOUND);
CASE(DEVICE_NOT_AVAILABLE);
CASE(COMPILER_NOT_AVAILABLE);
CASE(MEM_OBJECT_ALLOCATION_FAILURE);
CASE(OUT_OF_RESOURCES);
CASE(OUT_OF_HOST_MEMORY);
CASE(PROFILING_INFO_NOT_AVAILABLE);
CASE(MEM_COPY_OVERLAP);
CASE(IMAGE_FORMAT_MISMATCH);
CASE(IMAGE_FORMAT_NOT_SUPPORTED);
CASE(BUILD_PROGRAM_FAILURE);
CASE(MAP_FAILURE);
CASE(INVALID_VALUE);
CASE(INVALID_DEVICE_TYPE);
CASE(INVALID_PLATFORM);
CASE(INVALID_DEVICE);
CASE(INVALID_CONTEXT);
CASE(INVALID_QUEUE_PROPERTIES);
CASE(INVALID_COMMAND_QUEUE);
CASE(INVALID_HOST_PTR);
CASE(INVALID_MEM_OBJECT);
CASE(INVALID_IMAGE_FORMAT_DESCRIPTOR);
CASE(INVALID_IMAGE_SIZE);
CASE(INVALID_SAMPLER);
CASE(INVALID_BINARY);
CASE(INVALID_BUILD_OPTIONS);
CASE(INVALID_PROGRAM);
CASE(INVALID_PROGRAM_EXECUTABLE);
CASE(INVALID_KERNEL_NAME);
CASE(INVALID_KERNEL_DEFINITION);
CASE(INVALID_KERNEL);
CASE(INVALID_ARG_INDEX);
CASE(INVALID_ARG_VALUE);
CASE(INVALID_ARG_SIZE);
CASE(INVALID_KERNEL_ARGS);
CASE(INVALID_WORK_DIMENSION);
CASE(INVALID_WORK_GROUP_SIZE);
CASE(INVALID_WORK_ITEM_SIZE);
CASE(INVALID_GLOBAL_OFFSET);
CASE(INVALID_EVENT_WAIT_LIST);
CASE(INVALID_EVENT);
CASE(INVALID_OPERATION);
CASE(INVALID_GL_OBJECT);
CASE(INVALID_BUFFER_SIZE);
CASE(INVALID_MIP_LEVEL);
CASE(INVALID_GLOBAL_WORK_SIZE);
default:
return "Unknown OpenCL error code";
}
#undef CASE
}
}
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