Files
loongoffice/sc/source/core/tool/clkernelthread.cxx
Kohei Yoshida 6e24c78957 Initialize OpenCL device on the main thread when pre-compiling kernels.
Else it would cause extremely hard-to-debug random crashes when interpreting
formulas with OpenCL.

And let's re-enable kernel pre-compilation with this fix.

Change-Id: Ib104bfdc3f56a02c052c837eb4bf3ecc95d562e0
2014-03-07 11:15:20 -05:00

98 lines
2.6 KiB
C++

/* -*- 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 <sal/log.hxx>
#include "formulagroup.hxx"
#include "grouptokenconverter.hxx"
#include "clkernelthread.hxx"
using namespace std;
namespace sc {
CLBuildKernelThread::CLBuildKernelThread() :
salhelper::Thread("opencl-build-kernel-thread")
{
}
CLBuildKernelThread::~CLBuildKernelThread()
{
}
void CLBuildKernelThread::execute()
{
SAL_INFO("sc.opencl.thread", "running");
bool done = false;
while (!done)
{
SAL_INFO("sc.opencl.thread", "waiting for condition");
maQueueCondition.wait();
SAL_INFO("sc.opencl.thread", "got condition");
osl::ResettableMutexGuard aGuard(maQueueMutex);
maQueueCondition.reset();
while (!maQueue.empty())
{
CLBuildKernelWorkItem aWorkItem = maQueue.front();
maQueue.pop();
aGuard.clear();
switch (aWorkItem.meWhatToDo)
{
case CLBuildKernelWorkItem::COMPILE:
SAL_INFO("sc.opencl.thread", "told to compile group " << aWorkItem.mxGroup << " (state " << aWorkItem.mxGroup->meCalcState << ") to binary");
aWorkItem.mxGroup->compileOpenCLKernel();
SAL_INFO("sc.opencl.thread", "group " << aWorkItem.mxGroup << " compilation done");
maCompilationDoneCondition.set();
break;
case CLBuildKernelWorkItem::FINISH:
SAL_INFO("sc.opencl.thread", "told to finish");
done = true;
break;
}
aGuard.reset();
}
}
}
void CLBuildKernelThread::push(CLBuildKernelWorkItem item)
{
osl::MutexGuard guard(maQueueMutex);
maQueue.push(item);
maQueueCondition.set();
// This is only to ensure that the OpenCL parameters are initialized on
// the main thread before spawning a worker thread for kernel
// pre-compilation.
sc::FormulaGroupInterpreter::getStatic();
}
void CLBuildKernelThread::produce()
{
}
void CLBuildKernelThread::consume()
{
}
void CLBuildKernelThread::finish()
{
SAL_INFO("sc.opencl", "telling thread to finish");
CLBuildKernelWorkItem aWorkItem;
aWorkItem.meWhatToDo = CLBuildKernelWorkItem::FINISH;
push(aWorkItem);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */