1 files changed, 10 insertions, 3 deletions
diff --git a/src/routines/level3/xsyr2k.cc b/src/routines/level3/xsyr2k.cc
index 3206c669..c52e1353 100644
--- a/src/routines/level3/xsyr2k.cc
+++ b/src/routines/level3/xsyr2k.cc
@@ -104,6 +104,12 @@ StatusCode Xsyr2k<T>::DoSyr2k(const Layout layout, const Triangle triangle, cons
     auto b_temp = (b_no_temp) ? b_buffer : Buffer<T>(context_, k_ceiled*n_ceiled);
     auto c_temp = Buffer<T>(context_, n_ceiled*n_ceiled);
 
+    // Upload the scalar arguments as constant buffers to the device (needed for half-precision)
+    auto alpha_buffer = Buffer<T>(context_, 1);
+    auto beta_buffer = Buffer<T>(context_, 1);
+    alpha_buffer.Write(queue_, 1, &alpha);
+    beta_buffer.Write(queue_, 1, &beta);
+
     // Events of all kernels (including pre/post processing kernels)
     auto eventWaitList = std::vector<Event>();
     auto emptyEventList = std::vector<Event>();
@@ -147,8 +153,8 @@ StatusCode Xsyr2k<T>::DoSyr2k(const Layout layout, const Triangle triangle, cons
       // Sets the kernel arguments
       kernel.SetArgument(0, static_cast<int>(n_ceiled));
       kernel.SetArgument(1, static_cast<int>(k_ceiled));
-      kernel.SetArgument(2, alpha);
-      kernel.SetArgument(3, beta);
+      kernel.SetArgument(2, alpha_buffer());
+      kernel.SetArgument(3, beta_buffer());
       kernel.SetArgument(4, a_temp());
       kernel.SetArgument(5, b_temp());
       kernel.SetArgument(6, c_temp());
@@ -168,7 +174,8 @@ StatusCode Xsyr2k<T>::DoSyr2k(const Layout layout, const Triangle triangle, cons
 
       // Swaps the arguments for matrices A and B, and sets 'beta' to 1
       auto one = static_cast<T>(1);
-      kernel.SetArgument(3, one);
+      beta_buffer.Write(queue_, 1, &one);
+      kernel.SetArgument(3, beta_buffer());
       kernel.SetArgument(4, b_temp());
       kernel.SetArgument(5, a_temp());