From 52ccaf5b25e14c9ce032315e5e96b1f27886d481 Mon Sep 17 00:00:00 2001
From: Cedric Nugteren <web@cedricnugteren.nl>
Date: Thu, 16 Jun 2016 18:07:46 +0200
Subject: Added XOMATCOPY routines to perform out-of-place matrix scaling,
 copying, and/or transposing

---
 src/routine.cc | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

(limited to 'src/routine.cc')

diff --git a/src/routine.cc b/src/routine.cc
index 4b334e60..1cf8bff8 100644
--- a/src/routine.cc
+++ b/src/routine.cc
@@ -302,6 +302,7 @@ StatusCode Routine<T>::PadCopyTransposeMatrix(EventPointer event, std::vector<Ev
                                               const size_t dest_one, const size_t dest_two,
                                               const size_t dest_ld, const size_t dest_offset,
                                               const Buffer<T> &dest,
+                                              const T alpha,
                                               const Program &program, const bool do_pad,
                                               const bool do_transpose, const bool do_conjugate,
                                               const bool upper, const bool lower,
@@ -339,6 +340,10 @@ StatusCode Routine<T>::PadCopyTransposeMatrix(EventPointer event, std::vector<Ev
     }
   }
 
+  // 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 {
     auto kernel = Kernel(program, kernel_name);
@@ -348,6 +353,7 @@ StatusCode Routine<T>::PadCopyTransposeMatrix(EventPointer event, std::vector<Ev
       kernel.SetArgument(0, static_cast<int>(src_ld));
       kernel.SetArgument(1, src());
       kernel.SetArgument(2, dest());
+      kernel.SetArgument(3, alpha_buffer());
     }
     else {
       kernel.SetArgument(0, static_cast<int>(src_one));
@@ -360,13 +366,14 @@ StatusCode Routine<T>::PadCopyTransposeMatrix(EventPointer event, std::vector<Ev
       kernel.SetArgument(7, static_cast<int>(dest_ld));
       kernel.SetArgument(8, static_cast<int>(dest_offset));
       kernel.SetArgument(9, dest());
+      kernel.SetArgument(10, alpha_buffer());
       if (do_pad) {
-        kernel.SetArgument(10, static_cast<int>(do_conjugate));
+        kernel.SetArgument(11, static_cast<int>(do_conjugate));
       }
       else {
-        kernel.SetArgument(10, static_cast<int>(upper));
-        kernel.SetArgument(11, static_cast<int>(lower));
-        kernel.SetArgument(12, static_cast<int>(diagonal_imag_zero));
+        kernel.SetArgument(11, static_cast<int>(upper));
+        kernel.SetArgument(12, static_cast<int>(lower));
+        kernel.SetArgument(13, static_cast<int>(diagonal_imag_zero));
       }
     }
 
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