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diff --git a/test/routines/xgemm.h b/test/routines/xgemm.h
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+
+// =================================================================================================
+// This file is part of the CLBlast project. The project is licensed under the MIT license. 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 a class with static methods to describe the Xgemm routine. Examples of
+// such 'descriptions' are how to calculate the size a of buffer or how to run the routine. These
+// static methods are used by the correctness tester and the performance tester.
+//
+// =================================================================================================
+
+#ifndef CLBLAST_TEST_ROUTINES_XGEMM_H_
+#define CLBLAST_TEST_ROUTINES_XGEMM_H_
+
+#include <vector>
+#include <string>
+
+#include "wrapper_clblas.h"
+
+namespace clblast {
+// =================================================================================================
+
+// See comment at top of file for a description of the class
+template <typename T>
+class TestXgemm {
+ public:
+
+  // The list of arguments relevant for this routine
+  static std::vector<std::string> GetOptions() {
+    return {kArgM, kArgN, kArgK,
+            kArgLayout, kArgATransp, kArgBTransp,
+            kArgALeadDim, kArgBLeadDim, kArgCLeadDim,
+            kArgAOffset, kArgBOffset, kArgCOffset,
+            kArgAlpha, kArgBeta};
+  }
+
+  // Describes how to obtain the sizes of the buffers
+  static size_t GetSizeA(const Arguments<T> &args) {
+    auto a_rotated = (args.layout == Layout::kColMajor && args.a_transpose != Transpose::kNo) ||
+                     (args.layout == Layout::kRowMajor && args.a_transpose == Transpose::kNo);
+    auto a_two = (a_rotated) ? args.m : args.k;
+    return a_two * args.a_ld + args.a_offset;
+  }
+  static size_t GetSizeB(const Arguments<T> &args) {
+    auto b_rotated = (args.layout == Layout::kColMajor && args.b_transpose != Transpose::kNo) ||
+                     (args.layout == Layout::kRowMajor && args.b_transpose == Transpose::kNo);
+    auto b_two = (b_rotated) ? args.k : args.n;
+    return b_two * args.b_ld + args.b_offset;
+  }
+  static size_t GetSizeC(const Arguments<T> &args) {
+    auto c_rotated = (args.layout == Layout::kRowMajor);
+    auto c_two = (c_rotated) ? args.m : args.n;
+    return c_two * args.c_ld + args.c_offset;
+  }
+
+  // Describes how to run the CLBlast routine
+  static StatusCode RunRoutine(const Arguments<T> &args, const Buffers &buffers,
+                               CommandQueue &queue) {
+    auto queue_plain = queue();
+    auto event = cl_event{};
+    auto status = Gemm(args.layout, args.a_transpose, args.b_transpose,
+                       args.m, args.n, args.k, args.alpha,
+                       buffers.a_mat(), args.a_offset, args.a_ld,
+                       buffers.b_mat(), args.b_offset, args.b_ld, args.beta,
+                       buffers.c_mat(), args.c_offset, args.c_ld,
+                       &queue_plain, &event);
+    clWaitForEvents(1, &event);
+    return status;
+  }
+
+  // Describes how to run the clBLAS routine (for correctness/performance comparison)
+  static StatusCode RunReference(const Arguments<T> &args, const Buffers &buffers,
+                                 CommandQueue &queue) {
+    auto queue_plain = queue();
+    auto event = cl_event{};
+    auto status = clblasXgemm(static_cast<clblasOrder>(args.layout),
+                              static_cast<clblasTranspose>(args.a_transpose),
+                              static_cast<clblasTranspose>(args.b_transpose),
+                              args.m, args.n, args.k, args.alpha,
+                              buffers.a_mat(), args.a_offset, args.a_ld,
+                              buffers.b_mat(), args.b_offset, args.b_ld, args.beta,
+                              buffers.c_mat(), args.c_offset, args.c_ld,
+                              1, &queue_plain, 0, nullptr, &event);
+    clWaitForEvents(1, &event);
+    return static_cast<StatusCode>(status);
+  }
+
+  // Describes how to download the results of the computation (more importantly: which buffer)
+  static std::vector<T> DownloadResult(const Arguments<T> &args, Buffers &buffers,
+                                       CommandQueue &queue) {
+    std::vector<T> result(args.c_size, static_cast<T>(0));
+    buffers.c_mat.ReadBuffer(queue, args.c_size*sizeof(T), result);
+    return result;
+  }
+
+  // Describes how to compute the indices of the result buffer
+  static size_t ResultID1(const Arguments<T> &args) { return args.m; }
+  static size_t ResultID2(const Arguments<T> &args) { return args.n; }
+  static size_t GetResultIndex(const Arguments<T> &args, const size_t id1, const size_t id2) {
+    return (args.layout == Layout::kRowMajor) ?
+           id1*args.c_ld + id2 + args.c_offset:
+           id2*args.c_ld + id1 + args.c_offset;
+  }
+};
+
+// =================================================================================================
+} // namespace clblast
+
+// CLBLAST_TEST_ROUTINES_XGEMM_H_
+#endif