diff options
Diffstat (limited to 'src/routines/level2/xher.cc')
-rw-r--r-- | src/routines/level2/xher.cc | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/routines/level2/xher.cc b/src/routines/level2/xher.cc index a7116213..852e3f15 100644 --- a/src/routines/level2/xher.cc +++ b/src/routines/level2/xher.cc @@ -63,9 +63,6 @@ StatusCode Xher<T,U>::DoHer(const Layout layout, const Triangle triangle, (triangle == Triangle::kLower && layout == Layout::kRowMajor)); const auto is_rowmajor = (layout == Layout::kRowMajor); - // Creates a matching version of alpha - const auto matching_alpha = GetAlpha(alpha); - // Tests the matrix and the vectors for validity auto status = StatusCode::kSuccess; if (packed) { status = TestMatrixAP(n, a_buffer, a_offset, sizeof(T)); } @@ -77,14 +74,21 @@ StatusCode Xher<T,U>::DoHer(const Layout layout, const Triangle triangle, // If alpha is zero an update is not required if (alpha == U{0}) { return StatusCode::kSuccess; } - // Retrieves the Xgemv kernel from the compiled binary + // Creates a matching version of alpha + const auto matching_alpha = GetAlpha(alpha); + + // 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, &matching_alpha); + + // Retrieves the kernel from the compiled binary try { const auto program = GetProgramFromCache(); auto kernel = Kernel(program, "Xher"); // Sets the kernel arguments kernel.SetArgument(0, static_cast<int>(n)); - kernel.SetArgument(1, matching_alpha); + kernel.SetArgument(1, alpha_buffer()); kernel.SetArgument(2, x_buffer()); kernel.SetArgument(3, static_cast<int>(x_offset)); kernel.SetArgument(4, static_cast<int>(x_inc)); |