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author | Cedric Nugteren <web@cedricnugteren.nl> | 2016-06-19 13:55:49 +0200 |
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committer | Cedric Nugteren <web@cedricnugteren.nl> | 2016-06-19 13:55:49 +0200 |
commit | 61203453aaca4e47c05c598a673150522160ca87 (patch) | |
tree | 36cdce32423c2227de88e019c34415bef9499a6a /src/routines/level2/xger.cpp | |
parent | f726fbdc9fef937fbe32222f0e66aac8d7e2678c (diff) |
Renamed all C++ source files to .cpp to match the .hpp extension better
Diffstat (limited to 'src/routines/level2/xger.cpp')
-rw-r--r-- | src/routines/level2/xger.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/routines/level2/xger.cpp b/src/routines/level2/xger.cpp new file mode 100644 index 00000000..353047d2 --- /dev/null +++ b/src/routines/level2/xger.cpp @@ -0,0 +1,106 @@ + +// ================================================================================================= +// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This +// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max- +// width of 100 characters per line. +// +// Author(s): +// Cedric Nugteren <www.cedricnugteren.nl> +// +// This file implements the Xger class (see the header for information about the class). +// +// ================================================================================================= + +#include "routines/level2/xger.hpp" + +#include <string> +#include <vector> + +namespace clblast { +// ================================================================================================= + +// Constructor: forwards to base class constructor +template <typename T> +Xger<T>::Xger(Queue &queue, EventPointer event, const std::string &name): + Routine(queue, event, name, {"Xger"}, PrecisionValue<T>()) { + source_string_ = + #include "../../kernels/level2/level2.opencl" + #include "../../kernels/level2/xger.opencl" + ; +} + +// ================================================================================================= + +// The main routine +template <typename T> +StatusCode Xger<T>::DoGer(const Layout layout, + const size_t m, const size_t n, + const T alpha, + const Buffer<T> &x_buffer, const size_t x_offset, const size_t x_inc, + const Buffer<T> &y_buffer, const size_t y_offset, const size_t y_inc, + const Buffer<T> &a_buffer, const size_t a_offset, const size_t a_ld) { + + // Makes sure all dimensions are larger than zero + if (m == 0 || n == 0) { return StatusCode::kInvalidDimension; } + + // Computes whether or not the matrix has an alternative layout (row or column-major). + const auto a_is_rowmajor = (layout == Layout::kRowMajor); + const auto a_one = (a_is_rowmajor) ? n : m; + const auto a_two = (a_is_rowmajor) ? m : n; + + // Tests the matrix and the vectors for validity + auto status = TestMatrixA(a_one, a_two, a_buffer, a_offset, a_ld); + if (ErrorIn(status)) { return status; } + status = TestVectorX(m, x_buffer, x_offset, x_inc); + if (ErrorIn(status)) { return status; } + status = TestVectorY(n, y_buffer, y_offset, y_inc); + if (ErrorIn(status)) { return status; } + + // Upload the scalar argument as a constant buffer to the device (needed for half-precision) + auto alpha_buffer = Buffer<T>(context_, 1); + alpha_buffer.Write(queue_, 1, &alpha); + + // Retrieves the kernel from the compiled binary + try { + const auto program = GetProgramFromCache(context_, PrecisionValue<T>(), routine_name_); + auto kernel = Kernel(program, "Xger"); + + // Sets the kernel arguments + kernel.SetArgument(0, static_cast<int>(a_one)); + kernel.SetArgument(1, static_cast<int>(a_two)); + kernel.SetArgument(2, alpha_buffer()); + kernel.SetArgument(3, x_buffer()); + kernel.SetArgument(4, static_cast<int>(x_offset)); + kernel.SetArgument(5, static_cast<int>(x_inc)); + kernel.SetArgument(6, y_buffer()); + kernel.SetArgument(7, static_cast<int>(y_offset)); + kernel.SetArgument(8, static_cast<int>(y_inc)); + kernel.SetArgument(9, a_buffer()); + kernel.SetArgument(10, static_cast<int>(a_offset)); + kernel.SetArgument(11, static_cast<int>(a_ld)); + kernel.SetArgument(12, static_cast<int>(a_is_rowmajor)); + + // Launches the kernel + auto a_one_ceiled = Ceil(CeilDiv(a_one, db_["WPT"]), db_["WGS1"]); + auto a_two_ceiled = Ceil(CeilDiv(a_two, db_["WPT"]), db_["WGS2"]); + auto global = std::vector<size_t>{a_one_ceiled, a_two_ceiled}; + auto local = std::vector<size_t>{db_["WGS1"], db_["WGS2"]}; + status = RunKernel(kernel, queue_, device_, global, local, event_); + if (ErrorIn(status)) { return status; } + + // Succesfully finished the computation + return StatusCode::kSuccess; + } catch (...) { return StatusCode::kInvalidKernel; } +} + +// ================================================================================================= + +// Compiles the templated class +template class Xger<half>; +template class Xger<float>; +template class Xger<double>; +template class Xger<float2>; +template class Xger<double2>; + +// ================================================================================================= +} // namespace clblast |