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-rw-r--r--editors/libreoffice/files/patch-sc_source_core_opencl_formulagroupcl.cxx780
1 files changed, 780 insertions, 0 deletions
diff --git a/editors/libreoffice/files/patch-sc_source_core_opencl_formulagroupcl.cxx b/editors/libreoffice/files/patch-sc_source_core_opencl_formulagroupcl.cxx
new file mode 100644
index 000000000000..d995f1d25eb7
--- /dev/null
+++ b/editors/libreoffice/files/patch-sc_source_core_opencl_formulagroupcl.cxx
@@ -0,0 +1,780 @@
+https://bugs.gentoo.org/713574
+https://bugs.documentfoundation.org/show_bug.cgi?id=131591
+
+--- sc/source/core/opencl/formulagroupcl.cxx.orig 2020-03-11 16:18:35 UTC
++++ sc/source/core/opencl/formulagroupcl.cxx
+@@ -1026,8 +1026,6 @@ class DynamicKernelMixedArgument : public VectorRef (p
+ /// Handling a Double Vector that is used as a sliding window input
+ /// to either a sliding window average or sum-of-products
+ /// Generate a sequential loop for reductions
+-class OpAverage;
+-class OpCount;
+
+ template<class Base>
+ class DynamicKernelSlidingArgument : public Base
+@@ -1335,186 +1333,8 @@ class ParallelReductionVectorRef : public Base (public
+ }
+
+ /// Emit the definition for the auxiliary reduction kernel
+- virtual void GenSlidingWindowFunction( std::stringstream& ss )
+- {
+- if (!dynamic_cast<OpAverage*>(mpCodeGen.get()))
+- {
+- std::string name = Base::GetName();
+- ss << "__kernel void " << name;
+- ss << "_reduction(__global double* A, "
+- "__global double *result,int arrayLength,int windowSize){\n";
+- ss << " double tmp, current_result =" <<
+- mpCodeGen->GetBottom();
+- ss << ";\n";
+- ss << " int writePos = get_group_id(1);\n";
+- ss << " int lidx = get_local_id(0);\n";
+- ss << " __local double shm_buf[256];\n";
+- if (mpDVR->IsStartFixed())
+- ss << " int offset = 0;\n";
+- else // if (!mpDVR->IsStartFixed())
+- ss << " int offset = get_group_id(1);\n";
+- if (mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
+- ss << " int end = windowSize;\n";
+- else if (!mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
+- ss << " int end = offset + windowSize;\n";
+- else if (mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
+- ss << " int end = windowSize + get_group_id(1);\n";
+- else if (!mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
+- ss << " int end = windowSize;\n";
+- ss << " end = min(end, arrayLength);\n";
++ virtual void GenSlidingWindowFunction( std::stringstream& ss );
+
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " int loop = arrayLength/512 + 1;\n";
+- ss << " for (int l=0; l<loop; l++){\n";
+- ss << " tmp = " << mpCodeGen->GetBottom() << ";\n";
+- ss << " int loopOffset = l*512;\n";
+- ss << " if((loopOffset + lidx + offset + 256) < end) {\n";
+- ss << " tmp = legalize(" << mpCodeGen->Gen2(
+- "A[loopOffset + lidx + offset]", "tmp") << ", tmp);\n";
+- ss << " tmp = legalize(" << mpCodeGen->Gen2(
+- "A[loopOffset + lidx + offset + 256]", "tmp") << ", tmp);\n";
+- ss << " } else if ((loopOffset + lidx + offset) < end)\n";
+- ss << " tmp = legalize(" << mpCodeGen->Gen2(
+- "A[loopOffset + lidx + offset]", "tmp") << ", tmp);\n";
+- ss << " shm_buf[lidx] = tmp;\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " for (int i = 128; i >0; i/=2) {\n";
+- ss << " if (lidx < i)\n";
+- ss << " shm_buf[lidx] = ";
+- // Special case count
+- if (dynamic_cast<OpCount*>(mpCodeGen.get()))
+- ss << "shm_buf[lidx] + shm_buf[lidx + i];\n";
+- else
+- ss << mpCodeGen->Gen2("shm_buf[lidx]", "shm_buf[lidx + i]") << ";\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " }\n";
+- ss << " if (lidx == 0)\n";
+- ss << " current_result =";
+- if (dynamic_cast<OpCount*>(mpCodeGen.get()))
+- ss << "current_result + shm_buf[0]";
+- else
+- ss << mpCodeGen->Gen2("current_result", "shm_buf[0]");
+- ss << ";\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " }\n";
+- ss << " if (lidx == 0)\n";
+- ss << " result[writePos] = current_result;\n";
+- ss << "}\n";
+- }
+- else
+- {
+- std::string name = Base::GetName();
+- /*sum reduction*/
+- ss << "__kernel void " << name << "_sum";
+- ss << "_reduction(__global double* A, "
+- "__global double *result,int arrayLength,int windowSize){\n";
+- ss << " double tmp, current_result =" <<
+- mpCodeGen->GetBottom();
+- ss << ";\n";
+- ss << " int writePos = get_group_id(1);\n";
+- ss << " int lidx = get_local_id(0);\n";
+- ss << " __local double shm_buf[256];\n";
+- if (mpDVR->IsStartFixed())
+- ss << " int offset = 0;\n";
+- else // if (!mpDVR->IsStartFixed())
+- ss << " int offset = get_group_id(1);\n";
+- if (mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
+- ss << " int end = windowSize;\n";
+- else if (!mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
+- ss << " int end = offset + windowSize;\n";
+- else if (mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
+- ss << " int end = windowSize + get_group_id(1);\n";
+- else if (!mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
+- ss << " int end = windowSize;\n";
+- ss << " end = min(end, arrayLength);\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " int loop = arrayLength/512 + 1;\n";
+- ss << " for (int l=0; l<loop; l++){\n";
+- ss << " tmp = " << mpCodeGen->GetBottom() << ";\n";
+- ss << " int loopOffset = l*512;\n";
+- ss << " if((loopOffset + lidx + offset + 256) < end) {\n";
+- ss << " tmp = legalize(";
+- ss << "(A[loopOffset + lidx + offset]+ tmp)";
+- ss << ", tmp);\n";
+- ss << " tmp = legalize((A[loopOffset + lidx + offset + 256]+ tmp)";
+- ss << ", tmp);\n";
+- ss << " } else if ((loopOffset + lidx + offset) < end)\n";
+- ss << " tmp = legalize((A[loopOffset + lidx + offset] + tmp)";
+- ss << ", tmp);\n";
+- ss << " shm_buf[lidx] = tmp;\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " for (int i = 128; i >0; i/=2) {\n";
+- ss << " if (lidx < i)\n";
+- ss << " shm_buf[lidx] = ";
+- ss << "shm_buf[lidx] + shm_buf[lidx + i];\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " }\n";
+- ss << " if (lidx == 0)\n";
+- ss << " current_result =";
+- ss << "current_result + shm_buf[0]";
+- ss << ";\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " }\n";
+- ss << " if (lidx == 0)\n";
+- ss << " result[writePos] = current_result;\n";
+- ss << "}\n";
+- /*count reduction*/
+- ss << "__kernel void " << name << "_count";
+- ss << "_reduction(__global double* A, "
+- "__global double *result,int arrayLength,int windowSize){\n";
+- ss << " double tmp, current_result =" <<
+- mpCodeGen->GetBottom();
+- ss << ";\n";
+- ss << " int writePos = get_group_id(1);\n";
+- ss << " int lidx = get_local_id(0);\n";
+- ss << " __local double shm_buf[256];\n";
+- if (mpDVR->IsStartFixed())
+- ss << " int offset = 0;\n";
+- else // if (!mpDVR->IsStartFixed())
+- ss << " int offset = get_group_id(1);\n";
+- if (mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
+- ss << " int end = windowSize;\n";
+- else if (!mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
+- ss << " int end = offset + windowSize;\n";
+- else if (mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
+- ss << " int end = windowSize + get_group_id(1);\n";
+- else if (!mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
+- ss << " int end = windowSize;\n";
+- ss << " end = min(end, arrayLength);\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " int loop = arrayLength/512 + 1;\n";
+- ss << " for (int l=0; l<loop; l++){\n";
+- ss << " tmp = " << mpCodeGen->GetBottom() << ";\n";
+- ss << " int loopOffset = l*512;\n";
+- ss << " if((loopOffset + lidx + offset + 256) < end) {\n";
+- ss << " tmp = legalize((isnan(A[loopOffset + lidx + offset])?tmp:tmp+1.0)";
+- ss << ", tmp);\n";
+- ss << " tmp = legalize((isnan(A[loopOffset + lidx + offset+256])?tmp:tmp+1.0)";
+- ss << ", tmp);\n";
+- ss << " } else if ((loopOffset + lidx + offset) < end)\n";
+- ss << " tmp = legalize((isnan(A[loopOffset + lidx + offset])?tmp:tmp+1.0)";
+- ss << ", tmp);\n";
+- ss << " shm_buf[lidx] = tmp;\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " for (int i = 128; i >0; i/=2) {\n";
+- ss << " if (lidx < i)\n";
+- ss << " shm_buf[lidx] = ";
+- ss << "shm_buf[lidx] + shm_buf[lidx + i];\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " }\n";
+- ss << " if (lidx == 0)\n";
+- ss << " current_result =";
+- ss << "current_result + shm_buf[0];";
+- ss << ";\n";
+- ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
+- ss << " }\n";
+- ss << " if (lidx == 0)\n";
+- ss << " result[writePos] = current_result;\n";
+- ss << "}\n";
+- }
+-
+- }
+-
+ virtual std::string GenSlidingWindowDeclRef( bool ) const
+ {
+ std::stringstream ss;
+@@ -1527,195 +1347,10 @@ class ParallelReductionVectorRef : public Base (public
+
+ /// Controls how the elements in the DoubleVectorRef are traversed
+ size_t GenReductionLoopHeader(
+- std::stringstream& ss, int nResultSize, bool& needBody )
+- {
+- assert(mpDVR);
+- size_t nCurWindowSize = mpDVR->GetRefRowSize();
+- std::string temp = Base::GetName() + "[gid0]";
+- ss << "tmp = ";
+- // Special case count
+- if (dynamic_cast<OpAverage*>(mpCodeGen.get()))
+- {
+- ss << mpCodeGen->Gen2(temp, "tmp") << ";\n";
+- ss << "nCount = nCount-1;\n";
+- ss << "nCount = nCount +"; /*re-assign nCount from count reduction*/
+- ss << Base::GetName() << "[gid0+" << nResultSize << "]" << ";\n";
+- }
+- else if (dynamic_cast<OpCount*>(mpCodeGen.get()))
+- ss << temp << "+ tmp";
+- else
+- ss << mpCodeGen->Gen2(temp, "tmp");
+- ss << ";\n\t";
+- needBody = false;
+- return nCurWindowSize;
+- }
++ std::stringstream& ss, int nResultSize, bool& needBody );
+
+- virtual size_t Marshal( cl_kernel k, int argno, int w, cl_program mpProgram )
+- {
+- assert(Base::mpClmem == nullptr);
++ virtual size_t Marshal( cl_kernel k, int argno, int w, cl_program mpProgram );
+
+- openclwrapper::KernelEnv kEnv;
+- openclwrapper::setKernelEnv(&kEnv);
+- cl_int err;
+- size_t nInput = mpDVR->GetArrayLength();
+- size_t nCurWindowSize = mpDVR->GetRefRowSize();
+- // create clmem buffer
+- if (mpDVR->GetArrays()[Base::mnIndex].mpNumericArray == nullptr)
+- throw Unhandled(__FILE__, __LINE__);
+- double* pHostBuffer = const_cast<double*>(
+- mpDVR->GetArrays()[Base::mnIndex].mpNumericArray);
+- size_t szHostBuffer = nInput * sizeof(double);
+- Base::mpClmem = clCreateBuffer(kEnv.mpkContext,
+- cl_mem_flags(CL_MEM_READ_ONLY) | CL_MEM_USE_HOST_PTR,
+- szHostBuffer,
+- pHostBuffer, &err);
+- SAL_INFO("sc.opencl", "Created buffer " << Base::mpClmem << " size " << nInput << "*" << sizeof(double) << "=" << szHostBuffer << " using host buffer " << pHostBuffer);
+-
+- mpClmem2 = clCreateBuffer(kEnv.mpkContext,
+- CL_MEM_READ_WRITE | CL_MEM_ALLOC_HOST_PTR,
+- sizeof(double) * w, nullptr, nullptr);
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clCreateBuffer", err, __FILE__, __LINE__);
+- SAL_INFO("sc.opencl", "Created buffer " << mpClmem2 << " size " << sizeof(double) << "*" << w << "=" << (sizeof(double)*w));
+-
+- // reproduce the reduction function name
+- std::string kernelName;
+- if (!dynamic_cast<OpAverage*>(mpCodeGen.get()))
+- kernelName = Base::GetName() + "_reduction";
+- else
+- kernelName = Base::GetName() + "_sum_reduction";
+- cl_kernel redKernel = clCreateKernel(mpProgram, kernelName.c_str(), &err);
+- if (err != CL_SUCCESS)
+- throw OpenCLError("clCreateKernel", err, __FILE__, __LINE__);
+- SAL_INFO("sc.opencl", "Created kernel " << redKernel << " with name " << kernelName << " in program " << mpProgram);
+-
+- // set kernel arg of reduction kernel
+- // TODO(Wei Wei): use unique name for kernel
+- cl_mem buf = Base::GetCLBuffer();
+- SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 0 << ": cl_mem: " << buf);
+- err = clSetKernelArg(redKernel, 0, sizeof(cl_mem),
+- static_cast<void*>(&buf));
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
+-
+- SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 1 << ": cl_mem: " << mpClmem2);
+- err = clSetKernelArg(redKernel, 1, sizeof(cl_mem), &mpClmem2);
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
+-
+- SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 2 << ": cl_int: " << nInput);
+- err = clSetKernelArg(redKernel, 2, sizeof(cl_int), static_cast<void*>(&nInput));
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
+-
+- SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 3 << ": cl_int: " << nCurWindowSize);
+- err = clSetKernelArg(redKernel, 3, sizeof(cl_int), static_cast<void*>(&nCurWindowSize));
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
+-
+- // set work group size and execute
+- size_t global_work_size[] = { 256, static_cast<size_t>(w) };
+- size_t const local_work_size[] = { 256, 1 };
+- SAL_INFO("sc.opencl", "Enqueing kernel " << redKernel);
+- err = clEnqueueNDRangeKernel(kEnv.mpkCmdQueue, redKernel, 2, nullptr,
+- global_work_size, local_work_size, 0, nullptr, nullptr);
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clEnqueueNDRangeKernel", err, __FILE__, __LINE__);
+- err = clFinish(kEnv.mpkCmdQueue);
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clFinish", err, __FILE__, __LINE__);
+- if (dynamic_cast<OpAverage*>(mpCodeGen.get()))
+- {
+- /*average need more reduction kernel for count computing*/
+- std::unique_ptr<double[]> pAllBuffer(new double[2 * w]);
+- double* resbuf = static_cast<double*>(clEnqueueMapBuffer(kEnv.mpkCmdQueue,
+- mpClmem2,
+- CL_TRUE, CL_MAP_READ, 0,
+- sizeof(double) * w, 0, nullptr, nullptr,
+- &err));
+- if (err != CL_SUCCESS)
+- throw OpenCLError("clEnqueueMapBuffer", err, __FILE__, __LINE__);
+-
+- for (int i = 0; i < w; i++)
+- pAllBuffer[i] = resbuf[i];
+- err = clEnqueueUnmapMemObject(kEnv.mpkCmdQueue, mpClmem2, resbuf, 0, nullptr, nullptr);
+- if (err != CL_SUCCESS)
+- throw OpenCLError("clEnqueueUnmapMemObject", err, __FILE__, __LINE__);
+-
+- kernelName = Base::GetName() + "_count_reduction";
+- redKernel = clCreateKernel(mpProgram, kernelName.c_str(), &err);
+- if (err != CL_SUCCESS)
+- throw OpenCLError("clCreateKernel", err, __FILE__, __LINE__);
+- SAL_INFO("sc.opencl", "Created kernel " << redKernel << " with name " << kernelName << " in program " << mpProgram);
+-
+- // set kernel arg of reduction kernel
+- buf = Base::GetCLBuffer();
+- SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 0 << ": cl_mem: " << buf);
+- err = clSetKernelArg(redKernel, 0, sizeof(cl_mem),
+- static_cast<void*>(&buf));
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
+-
+- SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 1 << ": cl_mem: " << mpClmem2);
+- err = clSetKernelArg(redKernel, 1, sizeof(cl_mem), &mpClmem2);
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
+-
+- SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 2 << ": cl_int: " << nInput);
+- err = clSetKernelArg(redKernel, 2, sizeof(cl_int), static_cast<void*>(&nInput));
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
+-
+- SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 3 << ": cl_int: " << nCurWindowSize);
+- err = clSetKernelArg(redKernel, 3, sizeof(cl_int), static_cast<void*>(&nCurWindowSize));
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
+-
+- // set work group size and execute
+- size_t global_work_size1[] = { 256, static_cast<size_t>(w) };
+- size_t const local_work_size1[] = { 256, 1 };
+- SAL_INFO("sc.opencl", "Enqueing kernel " << redKernel);
+- err = clEnqueueNDRangeKernel(kEnv.mpkCmdQueue, redKernel, 2, nullptr,
+- global_work_size1, local_work_size1, 0, nullptr, nullptr);
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clEnqueueNDRangeKernel", err, __FILE__, __LINE__);
+- err = clFinish(kEnv.mpkCmdQueue);
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clFinish", err, __FILE__, __LINE__);
+- resbuf = static_cast<double*>(clEnqueueMapBuffer(kEnv.mpkCmdQueue,
+- mpClmem2,
+- CL_TRUE, CL_MAP_READ, 0,
+- sizeof(double) * w, 0, nullptr, nullptr,
+- &err));
+- if (err != CL_SUCCESS)
+- throw OpenCLError("clEnqueueMapBuffer", err, __FILE__, __LINE__);
+- for (int i = 0; i < w; i++)
+- pAllBuffer[i + w] = resbuf[i];
+- err = clEnqueueUnmapMemObject(kEnv.mpkCmdQueue, mpClmem2, resbuf, 0, nullptr, nullptr);
+- // FIXME: Is it intentional to not throw an OpenCLError even if the clEnqueueUnmapMemObject() fails?
+- if (CL_SUCCESS != err)
+- SAL_WARN("sc.opencl", "clEnqueueUnmapMemObject failed: " << openclwrapper::errorString(err));
+- if (mpClmem2)
+- {
+- err = clReleaseMemObject(mpClmem2);
+- SAL_WARN_IF(err != CL_SUCCESS, "sc.opencl", "clReleaseMemObject failed: " << openclwrapper::errorString(err));
+- mpClmem2 = nullptr;
+- }
+- mpClmem2 = clCreateBuffer(kEnv.mpkContext,
+- cl_mem_flags(CL_MEM_READ_WRITE) | CL_MEM_COPY_HOST_PTR,
+- w * sizeof(double) * 2, pAllBuffer.get(), &err);
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clCreateBuffer", err, __FILE__, __LINE__);
+- SAL_INFO("sc.opencl", "Created buffer " << mpClmem2 << " size " << w << "*" << sizeof(double) << "=" << (w*sizeof(double)) << " copying host buffer " << pAllBuffer.get());
+- }
+- // set kernel arg
+- SAL_INFO("sc.opencl", "Kernel " << k << " arg " << argno << ": cl_mem: " << mpClmem2);
+- err = clSetKernelArg(k, argno, sizeof(cl_mem), &mpClmem2);
+- if (CL_SUCCESS != err)
+- throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
+- return 1;
+- }
+-
+ ~ParallelReductionVectorRef()
+ {
+ if (mpClmem2)
+@@ -2324,6 +1959,379 @@ struct SumIfsArgs
+ cl_mem mCLMem;
+ double mConst;
+ };
++}
++
++template<class Base>
++void ParallelReductionVectorRef<Base>::GenSlidingWindowFunction( std::stringstream& ss )
++{
++ if (!dynamic_cast<OpAverage*>(mpCodeGen.get()))
++ {
++ std::string name = Base::GetName();
++ ss << "__kernel void " << name;
++ ss << "_reduction(__global double* A, "
++ "__global double *result,int arrayLength,int windowSize){\n";
++ ss << " double tmp, current_result =" <<
++ mpCodeGen->GetBottom();
++ ss << ";\n";
++ ss << " int writePos = get_group_id(1);\n";
++ ss << " int lidx = get_local_id(0);\n";
++ ss << " __local double shm_buf[256];\n";
++ if (mpDVR->IsStartFixed())
++ ss << " int offset = 0;\n";
++ else // if (!mpDVR->IsStartFixed())
++ ss << " int offset = get_group_id(1);\n";
++ if (mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
++ ss << " int end = windowSize;\n";
++ else if (!mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
++ ss << " int end = offset + windowSize;\n";
++ else if (mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
++ ss << " int end = windowSize + get_group_id(1);\n";
++ else if (!mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
++ ss << " int end = windowSize;\n";
++ ss << " end = min(end, arrayLength);\n";
++
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " int loop = arrayLength/512 + 1;\n";
++ ss << " for (int l=0; l<loop; l++){\n";
++ ss << " tmp = " << mpCodeGen->GetBottom() << ";\n";
++ ss << " int loopOffset = l*512;\n";
++ ss << " if((loopOffset + lidx + offset + 256) < end) {\n";
++ ss << " tmp = legalize(" << mpCodeGen->Gen2(
++ "A[loopOffset + lidx + offset]", "tmp") << ", tmp);\n";
++ ss << " tmp = legalize(" << mpCodeGen->Gen2(
++ "A[loopOffset + lidx + offset + 256]", "tmp") << ", tmp);\n";
++ ss << " } else if ((loopOffset + lidx + offset) < end)\n";
++ ss << " tmp = legalize(" << mpCodeGen->Gen2(
++ "A[loopOffset + lidx + offset]", "tmp") << ", tmp);\n";
++ ss << " shm_buf[lidx] = tmp;\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " for (int i = 128; i >0; i/=2) {\n";
++ ss << " if (lidx < i)\n";
++ ss << " shm_buf[lidx] = ";
++ // Special case count
++ if (dynamic_cast<OpCount*>(mpCodeGen.get()))
++ ss << "shm_buf[lidx] + shm_buf[lidx + i];\n";
++ else
++ ss << mpCodeGen->Gen2("shm_buf[lidx]", "shm_buf[lidx + i]") << ";\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " }\n";
++ ss << " if (lidx == 0)\n";
++ ss << " current_result =";
++ if (dynamic_cast<OpCount*>(mpCodeGen.get()))
++ ss << "current_result + shm_buf[0]";
++ else
++ ss << mpCodeGen->Gen2("current_result", "shm_buf[0]");
++ ss << ";\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " }\n";
++ ss << " if (lidx == 0)\n";
++ ss << " result[writePos] = current_result;\n";
++ ss << "}\n";
++ }
++ else
++ {
++ std::string name = Base::GetName();
++ /*sum reduction*/
++ ss << "__kernel void " << name << "_sum";
++ ss << "_reduction(__global double* A, "
++ "__global double *result,int arrayLength,int windowSize){\n";
++ ss << " double tmp, current_result =" <<
++ mpCodeGen->GetBottom();
++ ss << ";\n";
++ ss << " int writePos = get_group_id(1);\n";
++ ss << " int lidx = get_local_id(0);\n";
++ ss << " __local double shm_buf[256];\n";
++ if (mpDVR->IsStartFixed())
++ ss << " int offset = 0;\n";
++ else // if (!mpDVR->IsStartFixed())
++ ss << " int offset = get_group_id(1);\n";
++ if (mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
++ ss << " int end = windowSize;\n";
++ else if (!mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
++ ss << " int end = offset + windowSize;\n";
++ else if (mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
++ ss << " int end = windowSize + get_group_id(1);\n";
++ else if (!mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
++ ss << " int end = windowSize;\n";
++ ss << " end = min(end, arrayLength);\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " int loop = arrayLength/512 + 1;\n";
++ ss << " for (int l=0; l<loop; l++){\n";
++ ss << " tmp = " << mpCodeGen->GetBottom() << ";\n";
++ ss << " int loopOffset = l*512;\n";
++ ss << " if((loopOffset + lidx + offset + 256) < end) {\n";
++ ss << " tmp = legalize(";
++ ss << "(A[loopOffset + lidx + offset]+ tmp)";
++ ss << ", tmp);\n";
++ ss << " tmp = legalize((A[loopOffset + lidx + offset + 256]+ tmp)";
++ ss << ", tmp);\n";
++ ss << " } else if ((loopOffset + lidx + offset) < end)\n";
++ ss << " tmp = legalize((A[loopOffset + lidx + offset] + tmp)";
++ ss << ", tmp);\n";
++ ss << " shm_buf[lidx] = tmp;\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " for (int i = 128; i >0; i/=2) {\n";
++ ss << " if (lidx < i)\n";
++ ss << " shm_buf[lidx] = ";
++ ss << "shm_buf[lidx] + shm_buf[lidx + i];\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " }\n";
++ ss << " if (lidx == 0)\n";
++ ss << " current_result =";
++ ss << "current_result + shm_buf[0]";
++ ss << ";\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " }\n";
++ ss << " if (lidx == 0)\n";
++ ss << " result[writePos] = current_result;\n";
++ ss << "}\n";
++ /*count reduction*/
++ ss << "__kernel void " << name << "_count";
++ ss << "_reduction(__global double* A, "
++ "__global double *result,int arrayLength,int windowSize){\n";
++ ss << " double tmp, current_result =" <<
++ mpCodeGen->GetBottom();
++ ss << ";\n";
++ ss << " int writePos = get_group_id(1);\n";
++ ss << " int lidx = get_local_id(0);\n";
++ ss << " __local double shm_buf[256];\n";
++ if (mpDVR->IsStartFixed())
++ ss << " int offset = 0;\n";
++ else // if (!mpDVR->IsStartFixed())
++ ss << " int offset = get_group_id(1);\n";
++ if (mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
++ ss << " int end = windowSize;\n";
++ else if (!mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
++ ss << " int end = offset + windowSize;\n";
++ else if (mpDVR->IsStartFixed() && !mpDVR->IsEndFixed())
++ ss << " int end = windowSize + get_group_id(1);\n";
++ else if (!mpDVR->IsStartFixed() && mpDVR->IsEndFixed())
++ ss << " int end = windowSize;\n";
++ ss << " end = min(end, arrayLength);\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " int loop = arrayLength/512 + 1;\n";
++ ss << " for (int l=0; l<loop; l++){\n";
++ ss << " tmp = " << mpCodeGen->GetBottom() << ";\n";
++ ss << " int loopOffset = l*512;\n";
++ ss << " if((loopOffset + lidx + offset + 256) < end) {\n";
++ ss << " tmp = legalize((isnan(A[loopOffset + lidx + offset])?tmp:tmp+1.0)";
++ ss << ", tmp);\n";
++ ss << " tmp = legalize((isnan(A[loopOffset + lidx + offset+256])?tmp:tmp+1.0)";
++ ss << ", tmp);\n";
++ ss << " } else if ((loopOffset + lidx + offset) < end)\n";
++ ss << " tmp = legalize((isnan(A[loopOffset + lidx + offset])?tmp:tmp+1.0)";
++ ss << ", tmp);\n";
++ ss << " shm_buf[lidx] = tmp;\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " for (int i = 128; i >0; i/=2) {\n";
++ ss << " if (lidx < i)\n";
++ ss << " shm_buf[lidx] = ";
++ ss << "shm_buf[lidx] + shm_buf[lidx + i];\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " }\n";
++ ss << " if (lidx == 0)\n";
++ ss << " current_result =";
++ ss << "current_result + shm_buf[0];";
++ ss << ";\n";
++ ss << " barrier(CLK_LOCAL_MEM_FENCE);\n";
++ ss << " }\n";
++ ss << " if (lidx == 0)\n";
++ ss << " result[writePos] = current_result;\n";
++ ss << "}\n";
++ }
++
++}
++
++template<class Base>
++size_t ParallelReductionVectorRef<Base>::GenReductionLoopHeader(
++ std::stringstream& ss, int nResultSize, bool& needBody )
++{
++ assert(mpDVR);
++ size_t nCurWindowSize = mpDVR->GetRefRowSize();
++ std::string temp = Base::GetName() + "[gid0]";
++ ss << "tmp = ";
++ // Special case count
++ if (dynamic_cast<OpAverage*>(mpCodeGen.get()))
++ {
++ ss << mpCodeGen->Gen2(temp, "tmp") << ";\n";
++ ss << "nCount = nCount-1;\n";
++ ss << "nCount = nCount +"; /*re-assign nCount from count reduction*/
++ ss << Base::GetName() << "[gid0+" << nResultSize << "]" << ";\n";
++ }
++ else if (dynamic_cast<OpCount*>(mpCodeGen.get()))
++ ss << temp << "+ tmp";
++ else
++ ss << mpCodeGen->Gen2(temp, "tmp");
++ ss << ";\n\t";
++ needBody = false;
++ return nCurWindowSize;
++}
++
++template<class Base>
++size_t ParallelReductionVectorRef<Base>::Marshal( cl_kernel k, int argno, int w, cl_program mpProgram )
++{
++ assert(Base::mpClmem == nullptr);
++
++ openclwrapper::KernelEnv kEnv;
++ openclwrapper::setKernelEnv(&kEnv);
++ cl_int err;
++ size_t nInput = mpDVR->GetArrayLength();
++ size_t nCurWindowSize = mpDVR->GetRefRowSize();
++ // create clmem buffer
++ if (mpDVR->GetArrays()[Base::mnIndex].mpNumericArray == nullptr)
++ throw Unhandled(__FILE__, __LINE__);
++ double* pHostBuffer = const_cast<double*>(
++ mpDVR->GetArrays()[Base::mnIndex].mpNumericArray);
++ size_t szHostBuffer = nInput * sizeof(double);
++ Base::mpClmem = clCreateBuffer(kEnv.mpkContext,
++ cl_mem_flags(CL_MEM_READ_ONLY) | CL_MEM_USE_HOST_PTR,
++ szHostBuffer,
++ pHostBuffer, &err);
++ SAL_INFO("sc.opencl", "Created buffer " << Base::mpClmem << " size " << nInput << "*" << sizeof(double) << "=" << szHostBuffer << " using host buffer " << pHostBuffer);
++
++ mpClmem2 = clCreateBuffer(kEnv.mpkContext,
++ CL_MEM_READ_WRITE | CL_MEM_ALLOC_HOST_PTR,
++ sizeof(double) * w, nullptr, nullptr);
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clCreateBuffer", err, __FILE__, __LINE__);
++ SAL_INFO("sc.opencl", "Created buffer " << mpClmem2 << " size " << sizeof(double) << "*" << w << "=" << (sizeof(double)*w));
++
++ // reproduce the reduction function name
++ std::string kernelName;
++ if (!dynamic_cast<OpAverage*>(mpCodeGen.get()))
++ kernelName = Base::GetName() + "_reduction";
++ else
++ kernelName = Base::GetName() + "_sum_reduction";
++ cl_kernel redKernel = clCreateKernel(mpProgram, kernelName.c_str(), &err);
++ if (err != CL_SUCCESS)
++ throw OpenCLError("clCreateKernel", err, __FILE__, __LINE__);
++ SAL_INFO("sc.opencl", "Created kernel " << redKernel << " with name " << kernelName << " in program " << mpProgram);
++
++ // set kernel arg of reduction kernel
++ // TODO(Wei Wei): use unique name for kernel
++ cl_mem buf = Base::GetCLBuffer();
++ SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 0 << ": cl_mem: " << buf);
++ err = clSetKernelArg(redKernel, 0, sizeof(cl_mem),
++ static_cast<void*>(&buf));
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
++
++ SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 1 << ": cl_mem: " << mpClmem2);
++ err = clSetKernelArg(redKernel, 1, sizeof(cl_mem), &mpClmem2);
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
++
++ SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 2 << ": cl_int: " << nInput);
++ err = clSetKernelArg(redKernel, 2, sizeof(cl_int), static_cast<void*>(&nInput));
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
++
++ SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 3 << ": cl_int: " << nCurWindowSize);
++ err = clSetKernelArg(redKernel, 3, sizeof(cl_int), static_cast<void*>(&nCurWindowSize));
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
++
++ // set work group size and execute
++ size_t global_work_size[] = { 256, static_cast<size_t>(w) };
++ size_t const local_work_size[] = { 256, 1 };
++ SAL_INFO("sc.opencl", "Enqueing kernel " << redKernel);
++ err = clEnqueueNDRangeKernel(kEnv.mpkCmdQueue, redKernel, 2, nullptr,
++ global_work_size, local_work_size, 0, nullptr, nullptr);
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clEnqueueNDRangeKernel", err, __FILE__, __LINE__);
++ err = clFinish(kEnv.mpkCmdQueue);
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clFinish", err, __FILE__, __LINE__);
++ if (dynamic_cast<OpAverage*>(mpCodeGen.get()))
++ {
++ /*average need more reduction kernel for count computing*/
++ std::unique_ptr<double[]> pAllBuffer(new double[2 * w]);
++ double* resbuf = static_cast<double*>(clEnqueueMapBuffer(kEnv.mpkCmdQueue,
++ mpClmem2,
++ CL_TRUE, CL_MAP_READ, 0,
++ sizeof(double) * w, 0, nullptr, nullptr,
++ &err));
++ if (err != CL_SUCCESS)
++ throw OpenCLError("clEnqueueMapBuffer", err, __FILE__, __LINE__);
++
++ for (int i = 0; i < w; i++)
++ pAllBuffer[i] = resbuf[i];
++ err = clEnqueueUnmapMemObject(kEnv.mpkCmdQueue, mpClmem2, resbuf, 0, nullptr, nullptr);
++ if (err != CL_SUCCESS)
++ throw OpenCLError("clEnqueueUnmapMemObject", err, __FILE__, __LINE__);
++
++ kernelName = Base::GetName() + "_count_reduction";
++ redKernel = clCreateKernel(mpProgram, kernelName.c_str(), &err);
++ if (err != CL_SUCCESS)
++ throw OpenCLError("clCreateKernel", err, __FILE__, __LINE__);
++ SAL_INFO("sc.opencl", "Created kernel " << redKernel << " with name " << kernelName << " in program " << mpProgram);
++
++ // set kernel arg of reduction kernel
++ buf = Base::GetCLBuffer();
++ SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 0 << ": cl_mem: " << buf);
++ err = clSetKernelArg(redKernel, 0, sizeof(cl_mem),
++ static_cast<void*>(&buf));
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
++
++ SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 1 << ": cl_mem: " << mpClmem2);
++ err = clSetKernelArg(redKernel, 1, sizeof(cl_mem), &mpClmem2);
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
++
++ SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 2 << ": cl_int: " << nInput);
++ err = clSetKernelArg(redKernel, 2, sizeof(cl_int), static_cast<void*>(&nInput));
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
++
++ SAL_INFO("sc.opencl", "Kernel " << redKernel << " arg " << 3 << ": cl_int: " << nCurWindowSize);
++ err = clSetKernelArg(redKernel, 3, sizeof(cl_int), static_cast<void*>(&nCurWindowSize));
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
++
++ // set work group size and execute
++ size_t global_work_size1[] = { 256, static_cast<size_t>(w) };
++ size_t const local_work_size1[] = { 256, 1 };
++ SAL_INFO("sc.opencl", "Enqueing kernel " << redKernel);
++ err = clEnqueueNDRangeKernel(kEnv.mpkCmdQueue, redKernel, 2, nullptr,
++ global_work_size1, local_work_size1, 0, nullptr, nullptr);
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clEnqueueNDRangeKernel", err, __FILE__, __LINE__);
++ err = clFinish(kEnv.mpkCmdQueue);
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clFinish", err, __FILE__, __LINE__);
++ resbuf = static_cast<double*>(clEnqueueMapBuffer(kEnv.mpkCmdQueue,
++ mpClmem2,
++ CL_TRUE, CL_MAP_READ, 0,
++ sizeof(double) * w, 0, nullptr, nullptr,
++ &err));
++ if (err != CL_SUCCESS)
++ throw OpenCLError("clEnqueueMapBuffer", err, __FILE__, __LINE__);
++ for (int i = 0; i < w; i++)
++ pAllBuffer[i + w] = resbuf[i];
++ err = clEnqueueUnmapMemObject(kEnv.mpkCmdQueue, mpClmem2, resbuf, 0, nullptr, nullptr);
++ // FIXME: Is it intentional to not throw an OpenCLError even if the clEnqueueUnmapMemObject() fails?
++ if (CL_SUCCESS != err)
++ SAL_WARN("sc.opencl", "clEnqueueUnmapMemObject failed: " << openclwrapper::errorString(err));
++ if (mpClmem2)
++ {
++ err = clReleaseMemObject(mpClmem2);
++ SAL_WARN_IF(err != CL_SUCCESS, "sc.opencl", "clReleaseMemObject failed: " << openclwrapper::errorString(err));
++ mpClmem2 = nullptr;
++ }
++ mpClmem2 = clCreateBuffer(kEnv.mpkContext,
++ cl_mem_flags(CL_MEM_READ_WRITE) | CL_MEM_COPY_HOST_PTR,
++ w * sizeof(double) * 2, pAllBuffer.get(), &err);
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clCreateBuffer", err, __FILE__, __LINE__);
++ SAL_INFO("sc.opencl", "Created buffer " << mpClmem2 << " size " << w << "*" << sizeof(double) << "=" << (w*sizeof(double)) << " copying host buffer " << pAllBuffer.get());
++ }
++ // set kernel arg
++ SAL_INFO("sc.opencl", "Kernel " << k << " arg " << argno << ": cl_mem: " << mpClmem2);
++ err = clSetKernelArg(k, argno, sizeof(cl_mem), &mpClmem2);
++ if (CL_SUCCESS != err)
++ throw OpenCLError("clSetKernelArg", err, __FILE__, __LINE__);
++ return 1;
+ }
+
+ /// Helper functions that have multiple buffers