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Diffstat (limited to 'src/routines/level2/xgbmv.cpp')
-rw-r--r-- | src/routines/level2/xgbmv.cpp | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/routines/level2/xgbmv.cpp b/src/routines/level2/xgbmv.cpp new file mode 100644 index 00000000..ea4f001c --- /dev/null +++ b/src/routines/level2/xgbmv.cpp @@ -0,0 +1,68 @@ + +// ================================================================================================= +// 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 Xgbmv class (see the header for information about the class). +// +// ================================================================================================= + +#include "routines/level2/xgbmv.hpp" + +#include <string> +#include <vector> + +namespace clblast { +// ================================================================================================= + +// Constructor: forwards to base class constructor +template <typename T> +Xgbmv<T>::Xgbmv(Queue &queue, EventPointer event, const std::string &name): + Xgemv<T>(queue, event, name) { +} + +// ================================================================================================= + +// The main routine +template <typename T> +StatusCode Xgbmv<T>::DoGbmv(const Layout layout, const Transpose a_transpose, + const size_t m, const size_t n, const size_t kl, const size_t ku, + const T alpha, + const Buffer<T> &a_buffer, const size_t a_offset, const size_t a_ld, + const Buffer<T> &x_buffer, const size_t x_offset, const size_t x_inc, + const T beta, + const Buffer<T> &y_buffer, const size_t y_offset, const size_t y_inc) { + + // Reverses the upper and lower band count + auto rotated = (layout == Layout::kRowMajor); + auto kl_real = (rotated) ? ku : kl; + auto ku_real = (rotated) ? kl : ku; + + // Runs the generic matrix-vector multiplication, disabling the use of fast vectorized kernels. + // The specific hermitian matrix-accesses are implemented in the kernel guarded by the + // ROUTINE_GBMV define. + bool fast_kernels = false; + return MatVec(layout, a_transpose, + m, n, alpha, + a_buffer, a_offset, a_ld, + x_buffer, x_offset, x_inc, beta, + y_buffer, y_offset, y_inc, + fast_kernels, fast_kernels, + 0, false, kl_real, ku_real); +} + +// ================================================================================================= + +// Compiles the templated class +template class Xgbmv<half>; +template class Xgbmv<float>; +template class Xgbmv<double>; +template class Xgbmv<float2>; +template class Xgbmv<double2>; + +// ================================================================================================= +} // namespace clblast |