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Since the codebase is designed around proper C++ idioms such as RAII, it makes sense to only use C++ exceptions internally instead of mixing exceptions and error codes. The exceptions are now caught at top level to preserve compatibility with the existing error code-based API. Note that we deliberately do not catch C++ runtime errors (such as `std::bad_alloc`) nor logic errors (aka failed assertions) because no actual handling can ever happen for such errors. However, in the C interface we do catch _all_ exceptions (...) and convert them into a wild-card error code.
65 lines
2.6 KiB
C++
65 lines
2.6 KiB
C++
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// =================================================================================================
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// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
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// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
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// width of 100 characters per line.
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//
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// Author(s):
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// Cedric Nugteren <www.cedricnugteren.nl>
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//
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// This file implements the Xhemv class (see the header for information about the class).
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//
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// =================================================================================================
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#include "routines/level2/xhemv.hpp"
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#include <string>
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#include <vector>
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namespace clblast {
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// =================================================================================================
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// Constructor: forwards to base class constructor
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template <typename T>
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Xhemv<T>::Xhemv(Queue &queue, EventPointer event, const std::string &name):
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Xgemv<T>(queue, event, name) {
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}
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// =================================================================================================
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// The main routine
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template <typename T>
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void Xhemv<T>::DoHemv(const Layout layout, const Triangle triangle,
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const size_t n,
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const T alpha,
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const Buffer<T> &a_buffer, const size_t a_offset, const size_t a_ld,
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const Buffer<T> &x_buffer, const size_t x_offset, const size_t x_inc,
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const T beta,
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const Buffer<T> &y_buffer, const size_t y_offset, const size_t y_inc) {
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// The data is either in the upper or lower triangle
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size_t is_upper = ((triangle == Triangle::kUpper && layout != Layout::kRowMajor) ||
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(triangle == Triangle::kLower && layout == Layout::kRowMajor));
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// Runs the generic matrix-vector multiplication, disabling the use of fast vectorized kernels.
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// The specific hermitian matrix-accesses are implemented in the kernel guarded by the
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// ROUTINE_HEMV define.
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bool fast_kernels = false;
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MatVec(layout, Transpose::kNo,
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n, n, alpha,
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a_buffer, a_offset, a_ld,
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x_buffer, x_offset, x_inc, beta,
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y_buffer, y_offset, y_inc,
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fast_kernels, fast_kernels,
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is_upper, false, 0, 0);
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}
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// =================================================================================================
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// Compiles the templated class
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template class Xhemv<float2>;
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template class Xhemv<double2>;
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// =================================================================================================
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} // namespace clblast
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