static void scan_dim_launcher(Param &out, Param &tmp, const Param &in, const uint groups_all[4]) { try { Kernel* ker = get_scan_dim_kernels<Ti, To, op, dim, isFinalPass, threads_y>(0); NDRange local(THREADS_X, threads_y); NDRange global(groups_all[0] * groups_all[2] * local[0], groups_all[1] * groups_all[3] * local[1]); uint lim = divup(out.info.dims[dim], (threads_y * groups_all[dim])); auto scanOp = make_kernel<Buffer, KParam, Buffer, KParam, Buffer, KParam, uint, uint, uint, uint>(*ker); scanOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *tmp.data, tmp.info, *in.data, in.info, groups_all[0], groups_all[1], groups_all[dim], lim); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void convolve2(Param out, const Param signal, const Param filter) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> convProgs; static std::map<int, Kernel*> convKernels; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { const size_t C0_SIZE = (THREADS_X+2*(fLen-1))* THREADS_Y; const size_t C1_SIZE = (THREADS_Y+2*(fLen-1))* THREADS_X; size_t locSize = (conv_dim==0 ? C0_SIZE : C1_SIZE); std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D accType="<< dtype_traits<accType>::getName() << " -D CONV_DIM="<< conv_dim << " -D EXPAND="<< expand << " -D FLEN="<< fLen << " -D LOCAL_MEM_SIZE="<<locSize; if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, convolve_separable_cl, convolve_separable_cl_len, options.str()); convProgs[device] = new Program(prog); convKernels[device] = new Kernel(*convProgs[device], "convolve"); }); auto convOp = make_kernel<Buffer, KParam, Buffer, KParam, Buffer, int, int>(*convKernels[device]); NDRange local(THREADS_X, THREADS_Y); int blk_x = divup(out.info.dims[0], THREADS_X); int blk_y = divup(out.info.dims[1], THREADS_Y); NDRange global(blk_x*signal.info.dims[2]*THREADS_X, blk_y*signal.info.dims[3]*THREADS_Y); cl::Buffer *mBuff = bufferAlloc(fLen*sizeof(accType)); // FIX ME: if the filter array is strided, direct might cause issues getQueue().enqueueCopyBuffer(*filter.data, *mBuff, 0, 0, fLen*sizeof(accType)); convOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *signal.data, signal.info, *mBuff, blk_x, blk_y); bufferFree(mBuff); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void memcopy(cl::Buffer out, const dim_t *ostrides, const cl::Buffer in, const dim_t *idims, const dim_t *istrides, int offset, uint ndims) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> cpyProgs; static std::map<int, Kernel*> cpyKernels; int device = getActiveDeviceId(); std::call_once(compileFlags[device], [&]() { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName(); if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, memcopy_cl, memcopy_cl_len, options.str()); cpyProgs[device] = new Program(prog); cpyKernels[device] = new Kernel(*cpyProgs[device], "memcopy_kernel"); }); dims_t _ostrides = {{ostrides[0], ostrides[1], ostrides[2], ostrides[3]}}; dims_t _istrides = {{istrides[0], istrides[1], istrides[2], istrides[3]}}; dims_t _idims = {{idims[0], idims[1], idims[2], idims[3]}}; size_t local_size[2] = {DIM0, DIM1}; if (ndims == 1) { local_size[0] *= local_size[1]; local_size[1] = 1; } int groups_0 = divup(idims[0], local_size[0]); int groups_1 = divup(idims[1], local_size[1]); NDRange local(local_size[0], local_size[1]); NDRange global(groups_0 * idims[2] * local_size[0], groups_1 * idims[3] * local_size[1]); auto memcopy_kernel = KernelFunctor< Buffer, dims_t, Buffer, dims_t, dims_t, int, int, int >(*cpyKernels[device]); memcopy_kernel(EnqueueArgs(getQueue(), global, local), out, _ostrides, in, _idims, _istrides, offset, groups_0, groups_1); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void matchTemplate(Param out, const Param srch, const Param tmplt) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> mtProgs; static std::map<int, Kernel*> mtKernels; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D inType=" << dtype_traits<inType>::getName() << " -D outType=" << dtype_traits<outType>::getName() << " -D MATCH_T=" << mType << " -D NEEDMEAN="<< needMean << " -D AF_SAD=" << AF_SAD << " -D AF_ZSAD=" << AF_ZSAD << " -D AF_LSAD=" << AF_LSAD << " -D AF_SSD=" << AF_SSD << " -D AF_ZSSD=" << AF_ZSSD << " -D AF_LSSD=" << AF_LSSD << " -D AF_NCC=" << AF_NCC << " -D AF_ZNCC=" << AF_ZNCC << " -D AF_SHD=" << AF_SHD; if (std::is_same<outType, double>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, matchTemplate_cl, matchTemplate_cl_len, options.str()); mtProgs[device] = new Program(prog); mtKernels[device] = new Kernel(*mtProgs[device], "matchTemplate"); }); NDRange local(THREADS_X, THREADS_Y); int blk_x = divup(srch.info.dims[0], THREADS_X); int blk_y = divup(srch.info.dims[1], THREADS_Y); NDRange global(blk_x * srch.info.dims[2] * THREADS_X, blk_y * srch.info.dims[3] * THREADS_Y); auto matchImgOp = make_kernel<Buffer, KParam, Buffer, KParam, Buffer, KParam, int, int> (*mtKernels[device]); matchImgOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *srch.data, srch.info, *tmplt.data, tmplt.info, blk_x, blk_y); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void histogram(Param out, const Param in, const Param minmax, dim_type nbins) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> histProgs; static std::map<int, Kernel *> histKernels; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D inType=" << dtype_traits<inType>::getName() << " -D outType=" << dtype_traits<outType>::getName() << " -D THRD_LOAD=" << THRD_LOAD; if (std::is_same<inType, double>::value || std::is_same<inType, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, histogram_cl, histogram_cl_len, options.str()); histProgs[device] = new Program(prog); histKernels[device] = new Kernel(*histProgs[device], "histogram"); }); auto histogramOp = make_kernel<Buffer, KParam, Buffer, KParam, Buffer, cl::LocalSpaceArg, dim_type, dim_type, dim_type >(*histKernels[device]); NDRange local(THREADS_X, 1); dim_type numElements = in.info.dims[0]*in.info.dims[1]; dim_type blk_x = divup(numElements, THRD_LOAD*THREADS_X); dim_type batchCount = in.info.dims[2]; NDRange global(blk_x*THREADS_X, batchCount); dim_type locSize = nbins * sizeof(outType); histogramOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *in.data, in.info, *minmax.data, cl::Local(locSize), numElements, nbins, blk_x); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void gradient(Param grad0, Param grad1, const Param in) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> gradProgs; static std::map<int, Kernel*> gradKernels; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D TX=" << TX << " -D TY=" << TY; if((af_dtype) dtype_traits<T>::af_type == c32 || (af_dtype) dtype_traits<T>::af_type == c64) { options << " -D CPLX=1"; } else { options << " -D CPLX=0"; } if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, gradient_cl, gradient_cl_len, options.str()); gradProgs[device] = new Program(prog); gradKernels[device] = new Kernel(*gradProgs[device], "gradient_kernel"); }); auto gradOp = make_kernel<Buffer, const KParam, Buffer, const KParam, const Buffer, const KParam, const dim_type, const dim_type> (*gradKernels[device]); NDRange local(TX, TY, 1); dim_type blocksPerMatX = divup(in.info.dims[0], TX); dim_type blocksPerMatY = divup(in.info.dims[1], TY); NDRange global(local[0] * blocksPerMatX * in.info.dims[2], local[1] * blocksPerMatY * in.info.dims[3], 1); gradOp(EnqueueArgs(getQueue(), global, local), *grad0.data, grad0.info, *grad1.data, grad1.info, *in.data, in.info, blocksPerMatX, blocksPerMatY); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void transpose(Param out, const Param in) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> trsProgs; static std::map<int, Kernel*> trsKernels; int device = getActiveDeviceId(); std::call_once(compileFlags[device], [device] () { std::ostringstream options; options << " -D TILE_DIM=" << TILE_DIM << " -D THREADS_Y=" << THREADS_Y << " -D IS32MULTIPLE=" << IS32MULTIPLE << " -D DOCONJUGATE=" << (conjugate && af::iscplx<T>()) << " -D T=" << dtype_traits<T>::getName(); if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } cl::Program prog; buildProgram(prog, transpose_cl, transpose_cl_len, options.str()); trsProgs[device] = new Program(prog); trsKernels[device] = new Kernel(*trsProgs[device], "transpose"); }); NDRange local(THREADS_X, THREADS_Y); dim_type blk_x = divup(in.info.dims[0], TILE_DIM); dim_type blk_y = divup(in.info.dims[1], TILE_DIM); // launch batch * blk_x blocks along x dimension NDRange global(blk_x * local[0] * in.info.dims[2], blk_y * local[1]); auto transposeOp = make_kernel<Buffer, const KParam, const Buffer, const KParam, const dim_type> (*trsKernels[device]); transposeOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *in.data, in.info, blk_x); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void diff(Param out, const Param in, const unsigned indims) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> diffProgs; static std::map<int, Kernel*> diffKernels; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D DIM=" << dim << " -D isDiff2=" << isDiff2; if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, diff_cl, diff_cl_len, options.str()); diffProgs[device] = new Program(prog); diffKernels[device] = new Kernel(*diffProgs[device], "diff_kernel"); }); auto diffOp = make_kernel<Buffer, const Buffer, const KParam, const KParam, const dim_type, const dim_type, const dim_type> (*diffKernels[device]); NDRange local(TX, TY, 1); if(dim == 0 && indims == 1) { local = NDRange(TX * TY, 1, 1); } dim_type blocksPerMatX = divup(out.info.dims[0], local[0]); dim_type blocksPerMatY = divup(out.info.dims[1], local[1]); NDRange global(local[0] * blocksPerMatX * out.info.dims[2], local[1] * blocksPerMatY * out.info.dims[3], 1); const dim_type oElem = out.info.dims[0] * out.info.dims[1] * out.info.dims[2] * out.info.dims[3]; diffOp(EnqueueArgs(getQueue(), global, local), *out.data, *in.data, out.info, in.info, oElem, blocksPerMatX, blocksPerMatY); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void join(Param out, const Param X, const Param Y) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> joinProgs; static std::map<int, Kernel *> joinKernels; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D Tx=" << dtype_traits<Tx>::getName() << " -D Ty=" << dtype_traits<Ty>::getName() << " -D dim=" << dim; if (std::is_same<Tx, double>::value || std::is_same<Tx, cdouble>::value) { options << " -D USE_DOUBLE"; } else if (std::is_same<Tx, double>::value || std::is_same<Tx, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, join_cl, join_cl_len, options.str()); joinProgs[device] = new Program(prog); joinKernels[device] = new Kernel(*joinProgs[device], "join_kernel"); }); auto joinOp = make_kernel<Buffer, const KParam, const Buffer, const KParam, const Buffer, const KParam, const dim_type, const dim_type> (*joinKernels[device]); NDRange local(TX, TY, 1); dim_type blocksPerMatX = divup(out.info.dims[0], TILEX); dim_type blocksPerMatY = divup(out.info.dims[1], TILEY); NDRange global(local[0] * blocksPerMatX * out.info.dims[2], local[1] * blocksPerMatY * out.info.dims[3], 1); joinOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *X.data, X.info, *Y.data, Y.info, blocksPerMatX, blocksPerMatY); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
static Kernel* get_scan_dim_kernels(int kerIdx) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> scanProgs; static std::map<int, Kernel*> scanKerns; static std::map<int, Kernel*> bcastKerns; int device= getActiveDeviceId(); std::call_once(compileFlags[device], [device] () { Binary<To, op> scan; ToNum<To> toNum; std::ostringstream options; options << " -D To=" << dtype_traits<To>::getName() << " -D Ti=" << dtype_traits<Ti>::getName() << " -D T=To" << " -D dim=" << dim << " -D DIMY=" << threads_y << " -D THREADS_X=" << THREADS_X << " -D init=" << toNum(scan.init()) << " -D " << binOpName<op>() << " -D CPLX=" << af::iscplx<Ti>() << " -D isFinalPass="******" -D USE_DOUBLE"; } const char *ker_strs[] = {ops_cl, scan_dim_cl}; const int ker_lens[] = {ops_cl_len, scan_dim_cl_len}; cl::Program prog; buildProgram(prog, 2, ker_strs, ker_lens, options.str()); scanProgs[device] = new Program(prog); scanKerns[device] = new Kernel(*scanProgs[device], "scan_dim_kernel"); bcastKerns[device] = new Kernel(*scanProgs[device], "bcast_dim_kernel"); }); return (kerIdx == 0) ? scanKerns[device] : bcastKerns[device]; } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
Array<T> cholesky(int *info, const Array<T> &in, const bool is_upper) { try { Array<T> out = copyArray<T>(in); *info = cholesky_inplace(out, is_upper); if (is_upper) triangle<T, true , false>(out, out); else triangle<T, false, false>(out, out); return out; } catch (cl::Error &err) { CL_TO_AF_ERROR(err); } }
void random(cl::Buffer out, dim_type elements) { try { static unsigned counter; static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static Program ranProgs[DeviceManager::MAX_DEVICES]; static Kernel ranKernels[DeviceManager::MAX_DEVICES]; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { Program::Sources setSrc; setSrc.emplace_back(random_cl, random_cl_len); std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D repeat="<< REPEAT << " -D " << random_name<T, isRandu>().name(); if (std::is_same<T, double>::value) { options << " -D USE_DOUBLE"; options << " -D IS_64"; } if (std::is_same<T, char>::value) { options << " -D IS_BOOL"; } buildProgram(ranProgs[device], random_cl, random_cl_len, options.str()); ranKernels[device] = Kernel(ranProgs[device], "random"); }); auto randomOp = make_kernel<cl::Buffer, uint, uint, uint, uint>(ranKernels[device]); uint groups = divup(elements, THREADS * REPEAT); counter += divup(elements, THREADS * groups); NDRange local(THREADS, 1); NDRange global(THREADS * groups, 1); randomOp(EnqueueArgs(getQueue(), global, local), out, elements, counter, random_seed[0], random_seed[1]); } catch(cl::Error ex) { CL_TO_AF_ERROR(ex); } }
void select(Param out, Param cond, Param a, Param b, int ndims) { try { bool is_same = true; for (int i = 0; i < 4; i++) { is_same &= (a.info.dims[i] == b.info.dims[i]); } if (is_same) { select_launcher<T, true >(out, cond, a, b, ndims); } else { select_launcher<T, false>(out, cond, a, b, ndims); } } catch (cl::Error err) { CL_TO_AF_ERROR(err); } }
void transpose(Param out, const Param in) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static Program trsProgs[DeviceManager::MAX_DEVICES]; static Kernel trsKernels[DeviceManager::MAX_DEVICES]; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D TILE_DIM=" << TILE_DIM; buildProgram(trsProgs[device], transpose_cl, transpose_cl_len, options.str()); trsKernels[device] = Kernel(trsProgs[device], "transpose"); }); NDRange local(THREADS_X, THREADS_Y); dim_type blk_x = divup(in.info.dims[0], TILE_DIM); dim_type blk_y = divup(in.info.dims[1], TILE_DIM); // launch batch * blk_x blocks along x dimension NDRange global(blk_x * TILE_DIM * in.info.dims[2], blk_y * TILE_DIM); auto transposeOp = make_kernel<Buffer, KParam, Buffer, KParam, dim_type> (trsKernels[device]); transposeOp(EnqueueArgs(getQueue(), global, local), out.data, out.info, in.data, in.info, blk_x); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void index(Param out, const Param in, const IndexKernelParam_t& p, Buffer *bPtr[4]) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> idxProgs; static std::map<int, Kernel*> idxKernels; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName(); if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, index_cl, index_cl_len, options.str()); idxProgs[device] = new Program(prog); idxKernels[device] = new Kernel(*idxProgs[device], "indexKernel"); }); NDRange local(THREADS_X, THREADS_Y); int blk_x = divup(out.info.dims[0], THREADS_X); int blk_y = divup(out.info.dims[1], THREADS_Y); NDRange global(blk_x * out.info.dims[2] * THREADS_X, blk_y * out.info.dims[3] * THREADS_Y); auto indexOp = make_kernel<Buffer, KParam, Buffer, KParam, IndexKernelParam_t, Buffer, Buffer, Buffer, Buffer, int, int>(*idxKernels[device]); indexOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *in.data, in.info, p, *bPtr[0], *bPtr[1], *bPtr[2], *bPtr[3], blk_x, blk_y); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void transform(Param out, const Param in, const Param tf) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static Program transformProgs[DeviceManager::MAX_DEVICES]; static Kernel transformKernels[DeviceManager::MAX_DEVICES]; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D INVERSE=" << (isInverse ? 1 : 0); buildProgram(transformProgs[device], transform_cl, transform_cl_len, options.str()); transformKernels[device] = Kernel(transformProgs[device], "transform_kernel"); }); auto transformOp = make_kernel<Buffer, const KParam, const Buffer, const KParam, const Buffer, const KParam, const dim_type, const dim_type> (transformKernels[device]); const dim_type nimages = in.info.dims[2]; // Multiplied in src/backend/transform.cpp const dim_type ntransforms = out.info.dims[2] / in.info.dims[2]; NDRange local(TX, TY, 1); NDRange global(local[0] * divup(out.info.dims[0], local[0]) * nimages, local[1] * divup(out.info.dims[1], local[1]) * ntransforms, 1); transformOp(EnqueueArgs(getQueue(), global, local), out.data, out.info, in.data, in.info, tf.data, tf.info, nimages, ntransforms); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
Array<T> solve(const Array<T> &a, const Array<T> &b, const af_mat_prop options) { try { initBlas(); if (options & AF_MAT_UPPER || options & AF_MAT_LOWER) { return triangleSolve<T>(a, b, options); } if(a.dims()[0] == a.dims()[1]) { return generalSolve<T>(a, b); } else { return leastSquares<T>(a, b); } } catch(cl::Error &err) { CL_TO_AF_ERROR(err); } }
void sort0_by_key(Param okey, Param oval) { try { compute::command_queue c_queue(getQueue()()); compute::buffer okey_buf((*okey.data)()); compute::buffer oval_buf((*oval.data)()); for(dim_type w = 0; w < okey.info.dims[3]; w++) { dim_type okeyW = w * okey.info.strides[3]; dim_type ovalW = w * oval.info.strides[3]; for(dim_type z = 0; z < okey.info.dims[2]; z++) { dim_type okeyWZ = okeyW + z * okey.info.strides[2]; dim_type ovalWZ = ovalW + z * oval.info.strides[2]; for(dim_type y = 0; y < okey.info.dims[1]; y++) { dim_type okeyOffset = okeyWZ + y * okey.info.strides[1]; dim_type ovalOffset = ovalWZ + y * oval.info.strides[1]; if(isAscending) { compute::sort_by_key( compute::make_buffer_iterator<Tk>(okey_buf, okeyOffset), compute::make_buffer_iterator<Tk>(okey_buf, okeyOffset + okey.info.dims[0]), compute::make_buffer_iterator<Tv>(oval_buf, ovalOffset), compute::less<Tk>(), c_queue); } else { compute::sort_by_key( compute::make_buffer_iterator<Tk>(okey_buf, okeyOffset), compute::make_buffer_iterator<Tk>(okey_buf, okeyOffset + okey.info.dims[0]), compute::make_buffer_iterator<Tv>(oval_buf, ovalOffset), compute::greater<Tk>(), c_queue); } } } } CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void convNHelper(const conv_kparam_t& param, Param& out, const Param& signal, const Param& filter) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> convProgs; static std::map<int, Kernel*> convKernels; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D accType="<< dtype_traits<aT>::getName() << " -D BASE_DIM="<< bDim << " -D EXPAND=" << expand; if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, convolve_cl, convolve_cl_len, options.str()); convProgs[device] = new Program(prog); convKernels[device] = new Kernel(*convProgs[device], "convolve"); }); auto convOp = cl::KernelFunctor<Buffer, KParam, Buffer, KParam, cl::LocalSpaceArg, Buffer, KParam, int, int, int, int, int, int, int, int >(*convKernels[device]); convOp(EnqueueArgs(getQueue(), param.global, param.local), *out.data, out.info, *signal.data, signal.info, cl::Local(param.loc_size), *param.impulse, filter.info, param.nBBS0, param.nBBS1, param.o[0], param.o[1], param.o[2], param.s[0], param.s[1], param.s[2]); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
int cholesky_inplace(Array<T> &in, const bool is_upper) { try { initBlas(); dim4 iDims = in.dims(); int N = iDims[0]; magma_uplo_t uplo = is_upper ? MagmaUpper : MagmaLower; int info = 0; cl::Buffer *in_buf = in.get(); magma_potrf_gpu<T>(uplo, N, (*in_buf)(), in.getOffset(), in.strides()[1], getQueue()(), &info); return info; } catch (cl::Error &err) { CL_TO_AF_ERROR(err); } }
void sort0(Param val) { try { compute::command_queue c_queue(getQueue()()); compute::buffer val_buf((*val.data)()); for(int w = 0; w < val.info.dims[3]; w++) { int valW = w * val.info.strides[3]; for(int z = 0; z < val.info.dims[2]; z++) { int valWZ = valW + z * val.info.strides[2]; for(int y = 0; y < val.info.dims[1]; y++) { int valOffset = valWZ + y * val.info.strides[1]; if(isAscending) { compute::stable_sort( compute::make_buffer_iterator<T>(val_buf, valOffset), compute::make_buffer_iterator<T>(val_buf, valOffset + val.info.dims[0]), compute::less<T>(), c_queue); } else { compute::stable_sort( compute::make_buffer_iterator<T>(val_buf, valOffset), compute::make_buffer_iterator<T>(val_buf, valOffset + val.info.dims[0]), compute::greater<T>(), c_queue); } } } } CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
static void scan_dim(Param &out, const Param &in) { try { uint threads_y = std::min(THREADS_Y, nextpow2(out.info.dims[dim])); uint threads_x = THREADS_X; uint groups_all[] = {divup((uint)out.info.dims[0], threads_x), (uint)out.info.dims[1], (uint)out.info.dims[2], (uint)out.info.dims[3] }; groups_all[dim] = divup(out.info.dims[dim], threads_y * REPEAT); if (groups_all[dim] == 1) { scan_dim_fn<Ti, To, op, dim, true>(out, out, in, threads_y, groups_all); } else { Param tmp = out; tmp.info.dims[dim] = groups_all[dim]; tmp.info.strides[0] = 1; for (int k = 1; k < 4; k++) { tmp.info.strides[k] = tmp.info.strides[k - 1] * tmp.info.dims[k - 1]; } int tmp_elements = tmp.info.strides[3] * tmp.info.dims[3]; // FIXME: Do I need to free this ? tmp.data = bufferAlloc(tmp_elements * sizeof(To)); scan_dim_fn<Ti, To, op, dim, false>(out, tmp, in, threads_y, groups_all); int gdim = groups_all[dim]; groups_all[dim] = 1; if (op == af_notzero_t) { scan_dim_fn<To, To, af_add_t, dim, true>(tmp, tmp, tmp, threads_y, groups_all); } else { scan_dim_fn<To, To, op, dim, true>(tmp, tmp, tmp, threads_y, groups_all); } groups_all[dim] = gdim; bcast_dim_fn<To, To, op, dim, true>(out, tmp, threads_y, groups_all); bufferFree(tmp.data); } } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void exampleFunc(Param c, const Param a, const Param b, const af_someenum_t p) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> egProgs; static std::map<int, Kernel*> egKernels; int device = getActiveDeviceId(); // std::call_once is used to ensure OpenCL kernels // are compiled only once for any given device and combination // of template parameters to this kernel wrapper function 'exampleFunc<T>' std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName(); // You can pass any template parameters as compile options // to kernel the compilation step. This is equivalent of // having templated kernels in CUDA // The following option is passed to kernel compilation // if template parameter T is double or complex double // to enable FP64 extension if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; // below helper function 'buildProgram' uses the option string // we just created and compiles the kernel string // 'example_cl' which was created by our opencl kernel code obfuscation // stage buildProgram(prog, example_cl, example_cl_len, options.str()); // create a cl::Program object on heap egProgs[device] = new Program(prog); // create a cl::Kernel object on heap egKernels[device] = new Kernel(*egProgs[device], "example"); }); // configure work group parameters NDRange local(THREADS_X, THREADS_Y); int blk_x = divup(c.info.dims[0], THREADS_X); int blk_y = divup(c.info.dims[1], THREADS_Y); // configure global launch parameters NDRange global(blk_x * THREADS_X, blk_y * THREADS_Y); // create a kernel functor from the cl::Kernel object // corresponding to the device on which current execution // is happending. auto exampleFuncOp = KernelFunctor<Buffer, KParam, Buffer, KParam, Buffer, KParam, int>(*egKernels[device]); // launch the kernel exampleFuncOp(EnqueueArgs(getQueue(), global, local), *c.data, c.info, *a.data, a.info, *b.data, b.info, (int)p); // Below Macro activates validations ONLY in DEBUG // mode as its name indicates CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { // Catch all cl::Errors and convert them // to appropriate ArrayFire error codes CL_TO_AF_ERROR(err); } }
void copy(Param dst, const Param src, int ndims, outType default_value, double factor) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> cpyProgs; static std::map<int, Kernel*> cpyKernels; int device = getActiveDeviceId(); std::call_once(compileFlags[device], [&]() { std::ostringstream options; options << " -D inType=" << dtype_traits<inType>::getName() << " -D outType=" << dtype_traits<outType>::getName() << " -D inType_" << dtype_traits<inType>::getName() << " -D outType_" << dtype_traits<outType>::getName() << " -D SAME_DIMS=" << same_dims; if (std::is_same<inType, double>::value || std::is_same<inType, cdouble>::value || std::is_same<outType, double>::value || std::is_same<outType, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, copy_cl, copy_cl_len, options.str()); cpyProgs[device] = new Program(prog); cpyKernels[device] = new Kernel(*cpyProgs[device], "copy"); }); NDRange local(DIM0, DIM1); size_t local_size[] = {DIM0, DIM1}; local_size[0] *= local_size[1]; if (ndims == 1) { local_size[1] = 1; } int blk_x = divup(dst.info.dims[0], local_size[0]); int blk_y = divup(dst.info.dims[1], local_size[1]); NDRange global(blk_x * dst.info.dims[2] * DIM0, blk_y * dst.info.dims[3] * DIM1); dims_t trgt_dims; if (same_dims) { trgt_dims= {{dst.info.dims[0], dst.info.dims[1], dst.info.dims[2], dst.info.dims[3]}}; } else { dim_t trgt_l = std::min(dst.info.dims[3], src.info.dims[3]); dim_t trgt_k = std::min(dst.info.dims[2], src.info.dims[2]); dim_t trgt_j = std::min(dst.info.dims[1], src.info.dims[1]); dim_t trgt_i = std::min(dst.info.dims[0], src.info.dims[0]); trgt_dims= {{trgt_i, trgt_j, trgt_k, trgt_l}}; } auto copyOp = KernelFunctor<Buffer, KParam, Buffer, KParam, outType, float, dims_t, int, int >(*cpyKernels[device]); copyOp(EnqueueArgs(getQueue(), global, local), *dst.data, dst.info, *src.data, src.info, default_value, (float)factor, trgt_dims, blk_x, blk_y); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void packDataHelper(Param packed, Param sig, Param filter, const int baseDim, ConvolveBatchKind kind) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> fftconvolveProgs; static std::map<int, Kernel*> pdKernel; static std::map<int, Kernel*> paKernel; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName(); if ((af_dtype) dtype_traits<convT>::af_type == c32) { options << " -D CONVT=float"; } else if ((af_dtype) dtype_traits<convT>::af_type == c64 && isDouble) { options << " -D CONVT=double" << " -D USE_DOUBLE"; } cl::Program prog; buildProgram(prog, fftconvolve_pack_cl, fftconvolve_pack_cl_len, options.str()); fftconvolveProgs[device] = new Program(prog); pdKernel[device] = new Kernel(*fftconvolveProgs[device], "pack_data"); paKernel[device] = new Kernel(*fftconvolveProgs[device], "pad_array"); }); Param sig_tmp, filter_tmp; calcParamSizes(sig_tmp, filter_tmp, packed, sig, filter, baseDim, kind); int sig_packed_elem = sig_tmp.info.strides[3] * sig_tmp.info.dims[3]; int filter_packed_elem = filter_tmp.info.strides[3] * filter_tmp.info.dims[3]; // Number of packed complex elements in dimension 0 int sig_half_d0 = divup(sig.info.dims[0], 2); int sig_half_d0_odd = sig.info.dims[0] % 2; int blocks = divup(sig_packed_elem, THREADS); // Locate features kernel sizes NDRange local(THREADS); NDRange global(blocks * THREADS); // Pack signal in a complex matrix where first dimension is half the input // (allows faster FFT computation) and pad array to a power of 2 with 0s auto pdOp = make_kernel<Buffer, KParam, Buffer, KParam, const int, const int> (*pdKernel[device]); pdOp(EnqueueArgs(getQueue(), global, local), *sig_tmp.data, sig_tmp.info, *sig.data, sig.info, sig_half_d0, sig_half_d0_odd); CL_DEBUG_FINISH(getQueue()); blocks = divup(filter_packed_elem, THREADS); global = NDRange(blocks * THREADS); // Pad filter array with 0s auto paOp = make_kernel<Buffer, KParam, Buffer, KParam> (*paKernel[device]); paOp(EnqueueArgs(getQueue(), global, local), *filter_tmp.data, filter_tmp.info, *filter.data, filter.info); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void complexMultiplyHelper(Param packed, Param sig, Param filter, const int baseDim, ConvolveBatchKind kind) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> fftconvolveProgs; static std::map<int, Kernel*> cmKernel; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D ONE2ONE=" << (int)ONE2ONE << " -D MANY2ONE=" << (int)MANY2ONE << " -D ONE2MANY=" << (int)ONE2MANY << " -D MANY2MANY=" << (int)MANY2MANY; if ((af_dtype) dtype_traits<convT>::af_type == c32) { options << " -D CONVT=float"; } else if ((af_dtype) dtype_traits<convT>::af_type == c64 && isDouble) { options << " -D CONVT=double" << " -D USE_DOUBLE"; } cl::Program prog; buildProgram(prog, fftconvolve_multiply_cl, fftconvolve_multiply_cl_len, options.str()); fftconvolveProgs[device] = new Program(prog); cmKernel[device] = new Kernel(*fftconvolveProgs[device], "complex_multiply"); }); Param sig_tmp, filter_tmp; calcParamSizes(sig_tmp, filter_tmp, packed, sig, filter, baseDim, kind); int sig_packed_elem = sig_tmp.info.strides[3] * sig_tmp.info.dims[3]; int filter_packed_elem = filter_tmp.info.strides[3] * filter_tmp.info.dims[3]; int mul_elem = (sig_packed_elem < filter_packed_elem) ? filter_packed_elem : sig_packed_elem; int blocks = divup(mul_elem, THREADS); NDRange local(THREADS); NDRange global(blocks * THREADS); // Multiply filter and signal FFT arrays auto cmOp = make_kernel<Buffer, KParam, Buffer, KParam, Buffer, KParam, const int, const int> (*cmKernel[device]); cmOp(EnqueueArgs(getQueue(), global, local), *packed.data, packed.info, *sig_tmp.data, sig_tmp.info, *filter_tmp.data, filter_tmp.info, mul_elem, (int)kind); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void reorderOutputHelper(Param out, Param packed, Param sig, Param filter, const int baseDim, ConvolveBatchKind kind) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> fftconvolveProgs; static std::map<int, Kernel*> roKernel; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D ROUND_OUT=" << (int)roundOut << " -D EXPAND=" << (int)expand; if ((af_dtype) dtype_traits<convT>::af_type == c32) { options << " -D CONVT=float"; } else if ((af_dtype) dtype_traits<convT>::af_type == c64 && isDouble) { options << " -D CONVT=double" << " -D USE_DOUBLE"; } cl::Program prog; buildProgram(prog, fftconvolve_reorder_cl, fftconvolve_reorder_cl_len, options.str()); fftconvolveProgs[device] = new Program(prog); roKernel[device] = new Kernel(*fftconvolveProgs[device], "reorder_output"); }); Param sig_tmp, filter_tmp; calcParamSizes(sig_tmp, filter_tmp, packed, sig, filter, baseDim, kind); // Number of packed complex elements in dimension 0 int sig_half_d0 = divup(sig.info.dims[0], 2); int blocks = divup(out.info.strides[3] * out.info.dims[3], THREADS); NDRange local(THREADS); NDRange global(blocks * THREADS); auto roOp = make_kernel<Buffer, KParam, Buffer, KParam, KParam, const int, const int> (*roKernel[device]); if (kind == ONE2MANY) { roOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *filter_tmp.data, filter_tmp.info, filter.info, sig_half_d0, baseDim); } else { roOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *sig_tmp.data, sig_tmp.info, filter.info, sig_half_d0, baseDim); } CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void nearest_neighbour(Param idx, Param dist, Param query, Param train, const dim_t dist_dim, const unsigned n_dist) { try { const unsigned feat_len = query.info.dims[dist_dim]; const To max_dist = maxval<To>(); // Determine maximum feat_len capable of using shared memory (faster) cl_ulong avail_lmem = getDevice().getInfo<CL_DEVICE_LOCAL_MEM_SIZE>(); size_t lmem_predef = 2 * THREADS * sizeof(unsigned) + feat_len * sizeof(T); size_t ltrain_sz = THREADS * feat_len * sizeof(T); bool use_lmem = (avail_lmem >= (lmem_predef + ltrain_sz)) ? true : false; size_t lmem_sz = (use_lmem) ? lmem_predef + ltrain_sz : lmem_predef; unsigned unroll_len = nextpow2(feat_len); if (unroll_len != feat_len) unroll_len = 0; std::string ref_name = std::string("knn_") + std::to_string(dist_type) + std::string("_") + std::to_string(use_lmem) + std::string("_") + std::string(dtype_traits<T>::getName()) + std::string("_") + std::to_string(unroll_len); int device = getActiveDeviceId(); kc_t::iterator cache_idx = kernelCaches[device].find(ref_name); kc_entry_t entry; if (cache_idx == kernelCaches[device].end()) { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D To=" << dtype_traits<To>::getName() << " -D THREADS=" << THREADS << " -D FEAT_LEN=" << unroll_len; switch(dist_type) { case AF_SAD: options <<" -D DISTOP=_sad_"; break; case AF_SSD: options <<" -D DISTOP=_ssd_"; break; case AF_SHD: options <<" -D DISTOP=_shd_ -D __SHD__"; break; default: break; } if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } if (use_lmem) options << " -D USE_LOCAL_MEM"; cl::Program prog; buildProgram(prog, nearest_neighbour_cl, nearest_neighbour_cl_len, options.str()); entry.prog = new Program(prog); entry.ker = new Kernel[3]; entry.ker[0] = Kernel(*entry.prog, "nearest_neighbour_unroll"); entry.ker[1] = Kernel(*entry.prog, "nearest_neighbour"); entry.ker[2] = Kernel(*entry.prog, "select_matches"); kernelCaches[device][ref_name] = entry; } else { entry = cache_idx->second; } const dim_t sample_dim = (dist_dim == 0) ? 1 : 0; const unsigned nquery = query.info.dims[sample_dim]; const unsigned ntrain = train.info.dims[sample_dim]; unsigned nblk = divup(ntrain, THREADS); const NDRange local(THREADS, 1); const NDRange global(nblk * THREADS, 1); cl::Buffer *d_blk_idx = bufferAlloc(nblk * nquery * sizeof(unsigned)); cl::Buffer *d_blk_dist = bufferAlloc(nblk * nquery * sizeof(To)); // For each query vector, find training vector with smallest Hamming // distance per CUDA block if (unroll_len > 0) { auto huOp = KernelFunctor<Buffer, Buffer, Buffer, KParam, Buffer, KParam, const To, LocalSpaceArg> (entry.ker[0]); huOp(EnqueueArgs(getQueue(), global, local), *d_blk_idx, *d_blk_dist, *query.data, query.info, *train.data, train.info, max_dist, cl::Local(lmem_sz)); } else { auto hmOp = KernelFunctor<Buffer, Buffer, Buffer, KParam, Buffer, KParam, const To, const unsigned, LocalSpaceArg> (entry.ker[1]); hmOp(EnqueueArgs(getQueue(), global, local), *d_blk_idx, *d_blk_dist, *query.data, query.info, *train.data, train.info, max_dist, feat_len, cl::Local(lmem_sz)); } CL_DEBUG_FINISH(getQueue()); const NDRange local_sm(32, 8); const NDRange global_sm(divup(nquery, 32) * 32, 8); // Reduce all smallest Hamming distances from each block and store final // best match auto smOp = KernelFunctor<Buffer, Buffer, Buffer, Buffer, const unsigned, const unsigned, const To> (entry.ker[2]); smOp(EnqueueArgs(getQueue(), global_sm, local_sm), *idx.data, *dist.data, *d_blk_idx, *d_blk_dist, nquery, nblk, max_dist); CL_DEBUG_FINISH(getQueue()); bufferFree(d_blk_idx); bufferFree(d_blk_dist); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void orb(unsigned* out_feat, Param& x_out, Param& y_out, Param& score_out, Param& ori_out, Param& size_out, Param& desc_out, Param image, const float fast_thr, const unsigned max_feat, const float scl_fctr, const unsigned levels, const bool blur_img) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static Program orbProgs[DeviceManager::MAX_DEVICES]; static Kernel hrKernel[DeviceManager::MAX_DEVICES]; static Kernel kfKernel[DeviceManager::MAX_DEVICES]; static Kernel caKernel[DeviceManager::MAX_DEVICES]; static Kernel eoKernel[DeviceManager::MAX_DEVICES]; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D BLOCK_SIZE=" << ORB_THREADS_X; if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } buildProgram(orbProgs[device], orb_cl, orb_cl_len, options.str()); hrKernel[device] = Kernel(orbProgs[device], "harris_response"); kfKernel[device] = Kernel(orbProgs[device], "keep_features"); caKernel[device] = Kernel(orbProgs[device], "centroid_angle"); eoKernel[device] = Kernel(orbProgs[device], "extract_orb"); }); unsigned patch_size = REF_PAT_SIZE; unsigned min_side = std::min(image.info.dims[0], image.info.dims[1]); unsigned max_levels = 0; float scl_sum = 0.f; for (unsigned i = 0; i < levels; i++) { min_side /= scl_fctr; // Minimum image side for a descriptor to be computed if (min_side < patch_size || max_levels == levels) break; max_levels++; scl_sum += 1.f / (float)pow(scl_fctr,(float)i); } std::vector<cl::Buffer*> d_x_pyr(max_levels); std::vector<cl::Buffer*> d_y_pyr(max_levels); std::vector<cl::Buffer*> d_score_pyr(max_levels); std::vector<cl::Buffer*> d_ori_pyr(max_levels); std::vector<cl::Buffer*> d_size_pyr(max_levels); std::vector<cl::Buffer*> d_desc_pyr(max_levels); std::vector<unsigned> feat_pyr(max_levels); unsigned total_feat = 0; // Compute number of features to keep for each level std::vector<unsigned> lvl_best(max_levels); unsigned feat_sum = 0; for (unsigned i = 0; i < max_levels-1; i++) { float lvl_scl = (float)pow(scl_fctr,(float)i); lvl_best[i] = ceil((max_feat / scl_sum) / lvl_scl); feat_sum += lvl_best[i]; } lvl_best[max_levels-1] = max_feat - feat_sum; // Maintain a reference to previous level image Param prev_img; Param lvl_img; const unsigned gauss_len = 9; T* h_gauss = nullptr; Param gauss_filter; gauss_filter.data = nullptr; for (unsigned i = 0; i < max_levels; i++) { const float lvl_scl = (float)pow(scl_fctr,(float)i); if (i == 0) { // First level is used in its original size lvl_img = image; prev_img = image; } else if (i > 0) { // Resize previous level image to current level dimensions lvl_img.info.dims[0] = round(image.info.dims[0] / lvl_scl); lvl_img.info.dims[1] = round(image.info.dims[1] / lvl_scl); lvl_img.info.strides[0] = 1; lvl_img.info.strides[1] = lvl_img.info.dims[0]; for (int k = 2; k < 4; k++) { lvl_img.info.dims[k] = 1; lvl_img.info.strides[k] = lvl_img.info.dims[k - 1] * lvl_img.info.strides[k - 1]; } lvl_img.info.offset = 0; lvl_img.data = bufferAlloc(lvl_img.info.dims[3] * lvl_img.info.strides[3] * sizeof(T)); resize<T, AF_INTERP_BILINEAR>(lvl_img, prev_img); if (i > 1) bufferFree(prev_img.data); prev_img = lvl_img; } unsigned lvl_feat = 0; Param d_x_feat, d_y_feat, d_score_feat; // Round feature size to nearest odd integer float size = 2.f * floor(patch_size / 2.f) + 1.f; // Avoid keeping features that might be too wide and might not fit on // the image, sqrt(2.f) is the radius when angle is 45 degrees and // represents widest case possible unsigned edge = ceil(size * sqrt(2.f) / 2.f); // Detect FAST features fast<T, 9, true>(&lvl_feat, d_x_feat, d_y_feat, d_score_feat, lvl_img, fast_thr, 0.15f, edge); if (lvl_feat == 0) { feat_pyr[i] = 0; if (i > 0 && i == max_levels-1) bufferFree(lvl_img.data); continue; } bufferFree(d_score_feat.data); unsigned usable_feat = 0; cl::Buffer* d_usable_feat = bufferAlloc(sizeof(unsigned)); getQueue().enqueueWriteBuffer(*d_usable_feat, CL_TRUE, 0, sizeof(unsigned), &usable_feat); cl::Buffer* d_x_harris = bufferAlloc(lvl_feat * sizeof(float)); cl::Buffer* d_y_harris = bufferAlloc(lvl_feat * sizeof(float)); cl::Buffer* d_score_harris = bufferAlloc(lvl_feat * sizeof(float)); // Calculate Harris responses // Good block_size >= 7 (must be an odd number) const dim_type blk_x = divup(lvl_feat, ORB_THREADS_X); const NDRange local(ORB_THREADS_X, ORB_THREADS_Y); const NDRange global(blk_x * ORB_THREADS_X, ORB_THREADS_Y); unsigned block_size = 7; float k_thr = 0.04f; auto hrOp = make_kernel<Buffer, Buffer, Buffer, Buffer, Buffer, const unsigned, Buffer, Buffer, KParam, const unsigned, const float, const unsigned> (hrKernel[device]); hrOp(EnqueueArgs(getQueue(), global, local), *d_x_harris, *d_y_harris, *d_score_harris, *d_x_feat.data, *d_y_feat.data, lvl_feat, *d_usable_feat, *lvl_img.data, lvl_img.info, block_size, k_thr, patch_size); CL_DEBUG_FINISH(getQueue()); getQueue().enqueueReadBuffer(*d_usable_feat, CL_TRUE, 0, sizeof(unsigned), &usable_feat); bufferFree(d_x_feat.data); bufferFree(d_y_feat.data); bufferFree(d_usable_feat); if (usable_feat == 0) { feat_pyr[i] = 0; bufferFree(d_x_harris); bufferFree(d_y_harris); bufferFree(d_score_harris); if (i > 0 && i == max_levels-1) bufferFree(lvl_img.data); continue; } // Sort features according to Harris responses Param d_harris_sorted; Param d_harris_idx; d_harris_sorted.info.dims[0] = usable_feat; d_harris_idx.info.dims[0] = usable_feat; d_harris_sorted.info.strides[0] = 1; d_harris_idx.info.strides[0] = 1; for (int k = 1; k < 4; k++) { d_harris_sorted.info.dims[k] = 1; d_harris_idx.info.dims[k] = 1; d_harris_sorted.info.strides[k] = d_harris_sorted.info.dims[k - 1] * d_harris_sorted.info.strides[k - 1]; d_harris_idx.info.strides[k] = d_harris_idx.info.dims[k - 1] * d_harris_idx.info.strides[k - 1]; } d_harris_sorted.info.offset = 0; d_harris_idx.info.offset = 0; d_harris_sorted.data = d_score_harris; d_harris_idx.data = bufferAlloc((d_harris_idx.info.dims[0]) * sizeof(unsigned)); sort0_index<float, false>(d_harris_sorted, d_harris_idx); cl::Buffer* d_x_lvl = bufferAlloc(usable_feat * sizeof(float)); cl::Buffer* d_y_lvl = bufferAlloc(usable_feat * sizeof(float)); cl::Buffer* d_score_lvl = bufferAlloc(usable_feat * sizeof(float)); usable_feat = min(usable_feat, lvl_best[i]); // Keep only features with higher Harris responses const dim_type keep_blk = divup(usable_feat, ORB_THREADS); const NDRange local_keep(ORB_THREADS, 1); const NDRange global_keep(keep_blk * ORB_THREADS, 1); auto kfOp = make_kernel<Buffer, Buffer, Buffer, Buffer, Buffer, Buffer, Buffer, const unsigned> (kfKernel[device]); kfOp(EnqueueArgs(getQueue(), global_keep, local_keep), *d_x_lvl, *d_y_lvl, *d_score_lvl, *d_x_harris, *d_y_harris, *d_harris_sorted.data, *d_harris_idx.data, usable_feat); CL_DEBUG_FINISH(getQueue()); bufferFree(d_x_harris); bufferFree(d_y_harris); bufferFree(d_harris_sorted.data); bufferFree(d_harris_idx.data); cl::Buffer* d_ori_lvl = bufferAlloc(usable_feat * sizeof(float)); cl::Buffer* d_size_lvl = bufferAlloc(usable_feat * sizeof(float)); // Compute orientation of features const dim_type centroid_blk_x = divup(usable_feat, ORB_THREADS_X); const NDRange local_centroid(ORB_THREADS_X, ORB_THREADS_Y); const NDRange global_centroid(centroid_blk_x * ORB_THREADS_X, ORB_THREADS_Y); auto caOp = make_kernel<Buffer, Buffer, Buffer, const unsigned, Buffer, KParam, const unsigned> (caKernel[device]); caOp(EnqueueArgs(getQueue(), global_centroid, local_centroid), *d_x_lvl, *d_y_lvl, *d_ori_lvl, usable_feat, *lvl_img.data, lvl_img.info, patch_size); CL_DEBUG_FINISH(getQueue()); Param lvl_filt; Param lvl_tmp; if (blur_img) { lvl_filt = lvl_img; lvl_tmp = lvl_img; lvl_filt.data = bufferAlloc(lvl_filt.info.dims[0] * lvl_filt.info.dims[1] * sizeof(T)); lvl_tmp.data = bufferAlloc(lvl_tmp.info.dims[0] * lvl_tmp.info.dims[1] * sizeof(T)); // Calculate a separable Gaussian kernel if (h_gauss == nullptr) { h_gauss = new T[gauss_len]; gaussian1D(h_gauss, gauss_len, 2.f); gauss_filter.info.dims[0] = gauss_len; gauss_filter.info.strides[0] = 1; for (int k = 1; k < 4; k++) { gauss_filter.info.dims[k] = 1; gauss_filter.info.strides[k] = gauss_filter.info.dims[k - 1] * gauss_filter.info.strides[k - 1]; } dim_type gauss_elem = gauss_filter.info.strides[3] * gauss_filter.info.dims[3]; gauss_filter.data = bufferAlloc(gauss_elem * sizeof(T)); getQueue().enqueueWriteBuffer(*gauss_filter.data, CL_TRUE, 0, gauss_elem * sizeof(T), h_gauss); } // Filter level image with Gaussian kernel to reduce noise sensitivity convolve2<T, convAccT, 0, false, gauss_len>(lvl_tmp, lvl_img, gauss_filter); convolve2<T, convAccT, 1, false, gauss_len>(lvl_filt, lvl_tmp, gauss_filter); bufferFree(lvl_tmp.data); } // Compute ORB descriptors cl::Buffer* d_desc_lvl = bufferAlloc(usable_feat * 8 * sizeof(unsigned)); unsigned* h_desc_lvl = new unsigned[usable_feat * 8]; for (int j = 0; j < (int)usable_feat * 8; j++) h_desc_lvl[j] = 0; getQueue().enqueueWriteBuffer(*d_desc_lvl, CL_TRUE, 0, usable_feat * 8 * sizeof(unsigned), h_desc_lvl); delete[] h_desc_lvl; auto eoOp = make_kernel<Buffer, const unsigned, Buffer, Buffer, Buffer, Buffer, Buffer, KParam, const float, const unsigned> (eoKernel[device]); if (blur_img) { eoOp(EnqueueArgs(getQueue(), global_centroid, local_centroid), *d_desc_lvl, usable_feat, *d_x_lvl, *d_y_lvl, *d_ori_lvl, *d_size_lvl, *lvl_filt.data, lvl_filt.info, lvl_scl, patch_size); CL_DEBUG_FINISH(getQueue()); bufferFree(lvl_filt.data); } else { eoOp(EnqueueArgs(getQueue(), global_centroid, local_centroid), *d_desc_lvl, usable_feat, *d_x_lvl, *d_y_lvl, *d_ori_lvl, *d_size_lvl, *lvl_img.data, lvl_img.info, lvl_scl, patch_size); CL_DEBUG_FINISH(getQueue()); } // Store results to pyramids total_feat += usable_feat; feat_pyr[i] = usable_feat; d_x_pyr[i] = d_x_lvl; d_y_pyr[i] = d_y_lvl; d_score_pyr[i] = d_score_lvl; d_ori_pyr[i] = d_ori_lvl; d_size_pyr[i] = d_size_lvl; d_desc_pyr[i] = d_desc_lvl; if (i > 0 && i == max_levels-1) bufferFree(lvl_img.data); } if (gauss_filter.data != nullptr) bufferFree(gauss_filter.data); if (h_gauss != nullptr) delete[] h_gauss; // If no features are found, set found features to 0 and return if (total_feat == 0) { *out_feat = 0; return; } // Allocate output memory x_out.info.dims[0] = total_feat; x_out.info.strides[0] = 1; y_out.info.dims[0] = total_feat; y_out.info.strides[0] = 1; score_out.info.dims[0] = total_feat; score_out.info.strides[0] = 1; ori_out.info.dims[0] = total_feat; ori_out.info.strides[0] = 1; size_out.info.dims[0] = total_feat; size_out.info.strides[0] = 1; desc_out.info.dims[0] = 8; desc_out.info.strides[0] = 1; desc_out.info.dims[1] = total_feat; desc_out.info.strides[1] = desc_out.info.dims[0]; for (int k = 1; k < 4; k++) { x_out.info.dims[k] = 1; x_out.info.strides[k] = x_out.info.dims[k - 1] * x_out.info.strides[k - 1]; y_out.info.dims[k] = 1; y_out.info.strides[k] = y_out.info.dims[k - 1] * y_out.info.strides[k - 1]; score_out.info.dims[k] = 1; score_out.info.strides[k] = score_out.info.dims[k - 1] * score_out.info.strides[k - 1]; ori_out.info.dims[k] = 1; ori_out.info.strides[k] = ori_out.info.dims[k - 1] * ori_out.info.strides[k - 1]; size_out.info.dims[k] = 1; size_out.info.strides[k] = size_out.info.dims[k - 1] * size_out.info.strides[k - 1]; if (k > 1) { desc_out.info.dims[k] = 1; desc_out.info.strides[k] = desc_out.info.dims[k - 1] * desc_out.info.strides[k - 1]; } } if (total_feat > 0) { size_t out_sz = total_feat * sizeof(float); x_out.data = bufferAlloc(out_sz); y_out.data = bufferAlloc(out_sz); score_out.data = bufferAlloc(out_sz); ori_out.data = bufferAlloc(out_sz); size_out.data = bufferAlloc(out_sz); size_t desc_sz = total_feat * 8 * sizeof(unsigned); desc_out.data = bufferAlloc(desc_sz); } unsigned offset = 0; for (unsigned i = 0; i < max_levels; i++) { if (feat_pyr[i] == 0) continue; if (i > 0) offset += feat_pyr[i-1]; getQueue().enqueueCopyBuffer(*d_x_pyr[i], *x_out.data, 0, offset*sizeof(float), feat_pyr[i] * sizeof(float)); getQueue().enqueueCopyBuffer(*d_y_pyr[i], *y_out.data, 0, offset*sizeof(float), feat_pyr[i] * sizeof(float)); getQueue().enqueueCopyBuffer(*d_score_pyr[i], *score_out.data, 0, offset*sizeof(float), feat_pyr[i] * sizeof(float)); getQueue().enqueueCopyBuffer(*d_ori_pyr[i], *ori_out.data, 0, offset*sizeof(float), feat_pyr[i] * sizeof(float)); getQueue().enqueueCopyBuffer(*d_size_pyr[i], *size_out.data, 0, offset*sizeof(float), feat_pyr[i] * sizeof(float)); getQueue().enqueueCopyBuffer(*d_desc_pyr[i], *desc_out.data, 0, offset*8*sizeof(unsigned), feat_pyr[i] * 8 * sizeof(unsigned)); bufferFree(d_x_pyr[i]); bufferFree(d_y_pyr[i]); bufferFree(d_score_pyr[i]); bufferFree(d_ori_pyr[i]); bufferFree(d_size_pyr[i]); bufferFree(d_desc_pyr[i]); } // Sets number of output features *out_feat = total_feat; } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }
void morph(Param out, const Param in, const Param mask) { try { static std::once_flag compileFlags[DeviceManager::MAX_DEVICES]; static std::map<int, Program*> morProgs; static std::map<int, Kernel*> morKernels; int device = getActiveDeviceId(); std::call_once( compileFlags[device], [device] () { ToNumStr<T> toNumStr; T init = isDilation ? Binary<T, af_max_t>().init() : Binary<T, af_min_t>().init(); std::ostringstream options; options << " -D T=" << dtype_traits<T>::getName() << " -D isDilation="<< isDilation << " -D init=" << toNumStr(init) << " -D windLen=" << windLen; if (std::is_same<T, double>::value || std::is_same<T, cdouble>::value) { options << " -D USE_DOUBLE"; } Program prog; buildProgram(prog, morph_cl, morph_cl_len, options.str()); morProgs[device] = new Program(prog); morKernels[device] = new Kernel(*morProgs[device], "morph"); }); auto morphOp = KernelFunctor<Buffer, KParam, Buffer, KParam, Buffer, cl::LocalSpaceArg, int, int >(*morKernels[device]); NDRange local(THREADS_X, THREADS_Y); int blk_x = divup(in.info.dims[0], THREADS_X); int blk_y = divup(in.info.dims[1], THREADS_Y); // launch batch * blk_x blocks along x dimension NDRange global(blk_x * THREADS_X * in.info.dims[2], blk_y * THREADS_Y * in.info.dims[3]); // copy mask/filter to constant memory cl_int se_size = sizeof(T)*windLen*windLen; cl::Buffer *mBuff = bufferAlloc(se_size); getQueue().enqueueCopyBuffer(*mask.data, *mBuff, 0, 0, se_size); // calculate shared memory size const int halo = windLen/2; const int padding = 2*halo; const int locLen = THREADS_X + padding + 1; const int locSize = locLen * (THREADS_Y+padding); morphOp(EnqueueArgs(getQueue(), global, local), *out.data, out.info, *in.data, in.info, *mBuff, cl::Local(locSize*sizeof(T)), blk_x, blk_y); bufferFree(mBuff); CL_DEBUG_FINISH(getQueue()); } catch (cl::Error err) { CL_TO_AF_ERROR(err); throw; } }