From 0f9311d46aa06ecf9fecdd500467e5e58350adfe Mon Sep 17 00:00:00 2001
From: Cedric Nugteren <web@cedricnugteren.nl>
Date: Fri, 14 Oct 2016 20:56:32 +0200
Subject: Fixed an issue with a growing database: the database is now a global
 variable in a namespace and its container uses const-pointers to the actual
 data

---
 src/database/database.cpp               | 48 +++++++++++++++------------------
 src/database/database.hpp               | 39 ++++++++++++---------------
 src/database/kernel_selection.hpp       | 12 +++++----
 src/database/kernels/copy.hpp           | 12 +++++----
 src/database/kernels/pad.hpp            | 12 +++++----
 src/database/kernels/padtranspose.hpp   | 12 +++++----
 src/database/kernels/transpose.hpp      | 12 +++++----
 src/database/kernels/xaxpy.hpp          | 12 +++++----
 src/database/kernels/xdot.hpp           | 12 +++++----
 src/database/kernels/xgemm.hpp          | 12 +++++----
 src/database/kernels/xgemm_direct.hpp   | 12 +++++----
 src/database/kernels/xgemv.hpp          | 12 +++++----
 src/database/kernels/xgemv_fast.hpp     | 12 +++++----
 src/database/kernels/xgemv_fast_rot.hpp | 12 +++++----
 src/database/kernels/xger.hpp           | 12 +++++----
 15 files changed, 129 insertions(+), 114 deletions(-)

(limited to 'src/database')

diff --git a/src/database/database.cpp b/src/database/database.cpp
index 1198cefb..2340a89c 100644
--- a/src/database/database.cpp
+++ b/src/database/database.cpp
@@ -32,28 +32,22 @@ namespace clblast {
 // =================================================================================================
 
 // Initializes the database
-const std::vector<Database::DatabaseEntry> Database::database = {
-  XaxpyHalf, XaxpySingle, XaxpyDouble, XaxpyComplexSingle, XaxpyComplexDouble,
-  XdotHalf, XdotSingle, XdotDouble, XdotComplexSingle, XdotComplexDouble,
-  XgemvHalf, XgemvSingle, XgemvDouble, XgemvComplexSingle, XgemvComplexDouble,
-  XgemvFastHalf, XgemvFastSingle, XgemvFastDouble, XgemvFastComplexSingle, XgemvFastComplexDouble,
-  XgemvFastRotHalf, XgemvFastRotSingle, XgemvFastRotDouble, XgemvFastRotComplexSingle, XgemvFastRotComplexDouble,
-  XgerHalf, XgerSingle, XgerDouble, XgerComplexSingle, XgerComplexDouble,
-  XgemmHalf, XgemmSingle, XgemmDouble, XgemmComplexSingle, XgemmComplexDouble,
-  XgemmDirectHalf, XgemmDirectSingle, XgemmDirectDouble, XgemmDirectComplexSingle, XgemmDirectComplexDouble,
-  CopyHalf, CopySingle, CopyDouble, CopyComplexSingle, CopyComplexDouble,
-  PadHalf, PadSingle, PadDouble, PadComplexSingle, PadComplexDouble,
-  TransposeHalf, TransposeSingle, TransposeDouble, TransposeComplexSingle, TransposeComplexDouble,
-  PadtransposeHalf, PadtransposeSingle, PadtransposeDouble, PadtransposeComplexSingle, PadtransposeComplexDouble,
-  KernelSelectionHalf, KernelSelectionSingle, KernelSelectionDouble, KernelSelectionComplexSingle, KernelSelectionComplexDouble
+const std::vector<const Database::DatabaseEntry*> Database::database = {
+  &database::XaxpyHalf, &database::XaxpySingle, &database::XaxpyDouble, &database::XaxpyComplexSingle, &database::XaxpyComplexDouble,
+  &database::XdotHalf, &database::XdotSingle, &database::XdotDouble, &database::XdotComplexSingle, &database::XdotComplexDouble,
+  &database::XgemvHalf, &database::XgemvSingle, &database::XgemvDouble, &database::XgemvComplexSingle, &database::XgemvComplexDouble,
+  &database::XgemvFastHalf, &database::XgemvFastSingle, &database::XgemvFastDouble, &database::XgemvFastComplexSingle, &database::XgemvFastComplexDouble,
+  &database::XgemvFastRotHalf, &database::XgemvFastRotSingle, &database::XgemvFastRotDouble, &database::XgemvFastRotComplexSingle, &database::XgemvFastRotComplexDouble,
+  &database::XgerHalf, &database::XgerSingle, &database::XgerDouble, &database::XgerComplexSingle, &database::XgerComplexDouble,
+  &database::XgemmHalf, &database::XgemmSingle, &database::XgemmDouble, &database::XgemmComplexSingle, &database::XgemmComplexDouble,
+  &database::XgemmDirectHalf, &database::XgemmDirectSingle, &database::XgemmDirectDouble, &database::XgemmDirectComplexSingle, &database::XgemmDirectComplexDouble,
+  &database::CopyHalf, &database::CopySingle, &database::CopyDouble, &database::CopyComplexSingle, &database::CopyComplexDouble,
+  &database::PadHalf, &database::PadSingle, &database::PadDouble, &database::PadComplexSingle, &database::PadComplexDouble,
+  &database::TransposeHalf, &database::TransposeSingle, &database::TransposeDouble, &database::TransposeComplexSingle, &database::TransposeComplexDouble,
+  &database::PadtransposeHalf, &database::PadtransposeSingle, &database::PadtransposeDouble, &database::PadtransposeComplexSingle, &database::PadtransposeComplexDouble,
+  &database::KernelSelectionHalf, &database::KernelSelectionSingle, &database::KernelSelectionDouble, &database::KernelSelectionComplexSingle, &database::KernelSelectionComplexDouble
 };
 
-// The OpenCL device types
-const std::string Database::kDeviceTypeCPU = "CPU";
-const std::string Database::kDeviceTypeGPU = "GPU";
-const std::string Database::kDeviceTypeAccelerator = "accelerator";
-const std::string Database::kDeviceTypeAll = "default";
-
 // The OpenCL device vendors
 const std::string Database::kDeviceVendorAll = "default";
 
@@ -70,7 +64,7 @@ const std::unordered_map<std::string, std::string> Database::kVendorNames{
 // Constructor, computing device properties and populating the parameter-vector from the database.
 // This takes an optional overlay database in case of custom tuning or custom kernels.
 Database::Database(const Queue &queue, const std::vector<std::string> &kernels,
-                   const Precision precision, const std::vector<DatabaseEntry> &overlay):
+                   const Precision precision, const std::vector<const DatabaseEntry*> &overlay):
   parameters_{} {
 
   // Finds information of the current device
@@ -90,8 +84,8 @@ Database::Database(const Queue &queue, const std::vector<std::string> &kernels,
   for (auto &kernel: kernels) {
     auto search_result = ParametersPtr{};
 
-    for (auto db: { &overlay, &database }) {
-      search_result = Search(kernel, device_type, device_vendor, device_name, precision, *db);
+    for (auto &db: { database, overlay}) {
+      search_result = Search(kernel, device_type, device_vendor, device_name, precision, db);
       if (search_result) {
         parameters_.insert(search_result->begin(), search_result->end());
         break;
@@ -121,17 +115,17 @@ Database::ParametersPtr Database::Search(const std::string &this_kernel,
                                          const std::string &this_vendor,
                                          const std::string &this_device,
                                          const Precision this_precision,
-                                         const std::vector<DatabaseEntry> &this_database) const {
+                                         const std::vector<const DatabaseEntry*> &this_database) const {
 
   // Selects the right kernel
   for (auto &db: this_database) {
-    if (db.kernel == this_kernel && db.precision == this_precision) {
+    if (db->kernel == this_kernel && db->precision == this_precision) {
 
       // Searches for the right vendor and device type, or selects the default if unavailable. This
       // assumes that the default vendor / device type is last in the database.
-      for (auto &vendor: db.vendors) {
+      for (auto &vendor: db->vendors) {
         if ((vendor.name == this_vendor || vendor.name == kDeviceVendorAll) &&
-            (vendor.type == this_type || vendor.type == kDeviceTypeAll)) {
+            (vendor.type == this_type || vendor.type == database::kDeviceTypeAll)) {
 
           // Searches for the right device. If the current device is unavailable, selects the vendor
           // default parameters. This assumes the default is last in the database.
diff --git a/src/database/database.hpp b/src/database/database.hpp
index 346fe089..8a3e7040 100644
--- a/src/database/database.hpp
+++ b/src/database/database.hpp
@@ -26,6 +26,19 @@
 namespace clblast {
 // =================================================================================================
 
+// A special namespace to hold all the global constant variables (including the database entries)
+namespace database {
+
+  // The OpenCL device types
+  const std::string kDeviceTypeCPU = "CPU";
+  const std::string kDeviceTypeGPU = "GPU";
+  const std::string kDeviceTypeAccelerator = "accelerator";
+  const std::string kDeviceTypeAll = "default";
+
+} // namespace database
+
+// =================================================================================================
+
 // See comment at top of file for a description of the class
 class Database {
  public:
@@ -50,12 +63,6 @@ class Database {
     std::vector<DatabaseVendor> vendors;
   };
 
-  // The OpenCL device types
-  static const std::string kDeviceTypeCPU;
-  static const std::string kDeviceTypeGPU;
-  static const std::string kDeviceTypeAccelerator;
-  static const std::string kDeviceTypeAll;
-
   // The OpenCL device vendors
   static const std::string kDeviceVendorAll;
 
@@ -63,24 +70,11 @@ class Database {
   static const std::unordered_map<std::string, std::string> kVendorNames;
 
   // The database consists of separate database entries, stored together in a vector
-  static const DatabaseEntry XaxpyHalf, XaxpySingle, XaxpyDouble, XaxpyComplexSingle, XaxpyComplexDouble;
-  static const DatabaseEntry XdotHalf, XdotSingle, XdotDouble, XdotComplexSingle, XdotComplexDouble;
-  static const DatabaseEntry XgemvHalf, XgemvSingle, XgemvDouble, XgemvComplexSingle, XgemvComplexDouble;
-  static const DatabaseEntry XgemvFastHalf, XgemvFastSingle, XgemvFastDouble, XgemvFastComplexSingle, XgemvFastComplexDouble;
-  static const DatabaseEntry XgemvFastRotHalf, XgemvFastRotSingle, XgemvFastRotDouble, XgemvFastRotComplexSingle, XgemvFastRotComplexDouble;
-  static const DatabaseEntry XgerHalf, XgerSingle, XgerDouble, XgerComplexSingle, XgerComplexDouble;
-  static const DatabaseEntry XgemmHalf, XgemmSingle, XgemmDouble, XgemmComplexSingle, XgemmComplexDouble;
-  static const DatabaseEntry XgemmDirectHalf, XgemmDirectSingle, XgemmDirectDouble, XgemmDirectComplexSingle, XgemmDirectComplexDouble;
-  static const DatabaseEntry CopyHalf, CopySingle, CopyDouble, CopyComplexSingle, CopyComplexDouble;
-  static const DatabaseEntry PadHalf, PadSingle, PadDouble, PadComplexSingle, PadComplexDouble;
-  static const DatabaseEntry TransposeHalf, TransposeSingle, TransposeDouble, TransposeComplexSingle, TransposeComplexDouble;
-  static const DatabaseEntry PadtransposeHalf, PadtransposeSingle, PadtransposeDouble, PadtransposeComplexSingle, PadtransposeComplexDouble;
-  static const DatabaseEntry KernelSelectionHalf, KernelSelectionSingle, KernelSelectionDouble, KernelSelectionComplexSingle, KernelSelectionComplexDouble;
-  static const std::vector<DatabaseEntry> database;
+  static const std::vector<const DatabaseEntry*> database;
 
   // The constructor with a user-provided database overlay (potentially an empty vector)
   explicit Database(const Queue &queue, const std::vector<std::string> &routines,
-                    const Precision precision, const std::vector<DatabaseEntry> &overlay);
+                    const Precision precision, const std::vector<const DatabaseEntry*> &overlay);
 
   // Accessor of values by key
   size_t operator[](const std::string key) const { return parameters_.find(key)->second; }
@@ -92,7 +86,8 @@ class Database {
   // Search method for a specified database, returning pointer (possibly a nullptr)
   ParametersPtr Search(const std::string &this_kernel, const std::string &this_type,
                        const std::string &this_vendor, const std::string &this_device,
-                       const Precision this_precision, const std::vector<DatabaseEntry> &db) const;
+                       const Precision this_precision,
+                       const std::vector<const DatabaseEntry*> &db) const;
 
   // Found parameters suitable for this device/kernel
   Parameters parameters_;
diff --git a/src/database/kernel_selection.hpp b/src/database/kernel_selection.hpp
index c9462c7a..7e5e7821 100644
--- a/src/database/kernel_selection.hpp
+++ b/src/database/kernel_selection.hpp
@@ -15,9 +15,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::KernelSelectionHalf = {
+const Database::DatabaseEntry KernelSelectionHalf = {
   "KernelSelection", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -39,7 +40,7 @@ const Database::DatabaseEntry Database::KernelSelectionHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::KernelSelectionSingle = {
+const Database::DatabaseEntry KernelSelectionSingle = {
   "KernelSelection", Precision::kSingle, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -61,7 +62,7 @@ const Database::DatabaseEntry Database::KernelSelectionSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::KernelSelectionComplexSingle = {
+const Database::DatabaseEntry KernelSelectionComplexSingle = {
   "KernelSelection", Precision::kComplexSingle, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -83,7 +84,7 @@ const Database::DatabaseEntry Database::KernelSelectionComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::KernelSelectionDouble = {
+const Database::DatabaseEntry KernelSelectionDouble = {
   "KernelSelection", Precision::kDouble, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -105,7 +106,7 @@ const Database::DatabaseEntry Database::KernelSelectionDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::KernelSelectionComplexDouble = {
+const Database::DatabaseEntry KernelSelectionComplexDouble = {
   "KernelSelection", Precision::kComplexDouble, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -126,4 +127,5 @@ const Database::DatabaseEntry Database::KernelSelectionComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/copy.hpp b/src/database/kernels/copy.hpp
index 479c7f78..16aa6b3f 100644
--- a/src/database/kernels/copy.hpp
+++ b/src/database/kernels/copy.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::CopyHalf = {
+const Database::DatabaseEntry CopyHalf = {
   "Copy", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -33,7 +34,7 @@ const Database::DatabaseEntry Database::CopyHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::CopySingle = {
+const Database::DatabaseEntry CopySingle = {
   "Copy", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -104,7 +105,7 @@ const Database::DatabaseEntry Database::CopySingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::CopyComplexSingle = {
+const Database::DatabaseEntry CopyComplexSingle = {
   "Copy", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -167,7 +168,7 @@ const Database::DatabaseEntry Database::CopyComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::CopyDouble = {
+const Database::DatabaseEntry CopyDouble = {
   "Copy", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -226,7 +227,7 @@ const Database::DatabaseEntry Database::CopyDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::CopyComplexDouble = {
+const Database::DatabaseEntry CopyComplexDouble = {
   "Copy", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -284,4 +285,5 @@ const Database::DatabaseEntry Database::CopyComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/pad.hpp b/src/database/kernels/pad.hpp
index 48085139..6c5e0c2f 100644
--- a/src/database/kernels/pad.hpp
+++ b/src/database/kernels/pad.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadHalf = {
+const Database::DatabaseEntry PadHalf = {
   "Pad", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -33,7 +34,7 @@ const Database::DatabaseEntry Database::PadHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadSingle = {
+const Database::DatabaseEntry PadSingle = {
   "Pad", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -104,7 +105,7 @@ const Database::DatabaseEntry Database::PadSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadComplexSingle = {
+const Database::DatabaseEntry PadComplexSingle = {
   "Pad", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -175,7 +176,7 @@ const Database::DatabaseEntry Database::PadComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadDouble = {
+const Database::DatabaseEntry PadDouble = {
   "Pad", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -234,7 +235,7 @@ const Database::DatabaseEntry Database::PadDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadComplexDouble = {
+const Database::DatabaseEntry PadComplexDouble = {
   "Pad", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -292,4 +293,5 @@ const Database::DatabaseEntry Database::PadComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/padtranspose.hpp b/src/database/kernels/padtranspose.hpp
index f9448985..4003ec6d 100644
--- a/src/database/kernels/padtranspose.hpp
+++ b/src/database/kernels/padtranspose.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadtransposeHalf = {
+const Database::DatabaseEntry PadtransposeHalf = {
   "Padtranspose", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -33,7 +34,7 @@ const Database::DatabaseEntry Database::PadtransposeHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadtransposeSingle = {
+const Database::DatabaseEntry PadtransposeSingle = {
   "Padtranspose", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -104,7 +105,7 @@ const Database::DatabaseEntry Database::PadtransposeSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadtransposeComplexSingle = {
+const Database::DatabaseEntry PadtransposeComplexSingle = {
   "Padtranspose", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -175,7 +176,7 @@ const Database::DatabaseEntry Database::PadtransposeComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadtransposeDouble = {
+const Database::DatabaseEntry PadtransposeDouble = {
   "Padtranspose", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -234,7 +235,7 @@ const Database::DatabaseEntry Database::PadtransposeDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::PadtransposeComplexDouble = {
+const Database::DatabaseEntry PadtransposeComplexDouble = {
   "Padtranspose", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -292,4 +293,5 @@ const Database::DatabaseEntry Database::PadtransposeComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/transpose.hpp b/src/database/kernels/transpose.hpp
index 191d2e98..c5ea50c2 100644
--- a/src/database/kernels/transpose.hpp
+++ b/src/database/kernels/transpose.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::TransposeHalf = {
+const Database::DatabaseEntry TransposeHalf = {
   "Transpose", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -33,7 +34,7 @@ const Database::DatabaseEntry Database::TransposeHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::TransposeSingle = {
+const Database::DatabaseEntry TransposeSingle = {
   "Transpose", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -104,7 +105,7 @@ const Database::DatabaseEntry Database::TransposeSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::TransposeComplexSingle = {
+const Database::DatabaseEntry TransposeComplexSingle = {
   "Transpose", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -169,7 +170,7 @@ const Database::DatabaseEntry Database::TransposeComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::TransposeDouble = {
+const Database::DatabaseEntry TransposeDouble = {
   "Transpose", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -228,7 +229,7 @@ const Database::DatabaseEntry Database::TransposeDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::TransposeComplexDouble = {
+const Database::DatabaseEntry TransposeComplexDouble = {
   "Transpose", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -280,4 +281,5 @@ const Database::DatabaseEntry Database::TransposeComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/xaxpy.hpp b/src/database/kernels/xaxpy.hpp
index 70be5abc..60471bef 100644
--- a/src/database/kernels/xaxpy.hpp
+++ b/src/database/kernels/xaxpy.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XaxpyHalf = {
+const Database::DatabaseEntry XaxpyHalf = {
   "Xaxpy", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -33,7 +34,7 @@ const Database::DatabaseEntry Database::XaxpyHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XaxpySingle = {
+const Database::DatabaseEntry XaxpySingle = {
   "Xaxpy", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -104,7 +105,7 @@ const Database::DatabaseEntry Database::XaxpySingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XaxpyComplexSingle = {
+const Database::DatabaseEntry XaxpyComplexSingle = {
   "Xaxpy", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -175,7 +176,7 @@ const Database::DatabaseEntry Database::XaxpyComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XaxpyDouble = {
+const Database::DatabaseEntry XaxpyDouble = {
   "Xaxpy", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -234,7 +235,7 @@ const Database::DatabaseEntry Database::XaxpyDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XaxpyComplexDouble = {
+const Database::DatabaseEntry XaxpyComplexDouble = {
   "Xaxpy", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -292,4 +293,5 @@ const Database::DatabaseEntry Database::XaxpyComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/xdot.hpp b/src/database/kernels/xdot.hpp
index 96a699aa..686b2839 100644
--- a/src/database/kernels/xdot.hpp
+++ b/src/database/kernels/xdot.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XdotHalf = {
+const Database::DatabaseEntry XdotHalf = {
   "Xdot", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -33,7 +34,7 @@ const Database::DatabaseEntry Database::XdotHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XdotSingle = {
+const Database::DatabaseEntry XdotSingle = {
   "Xdot", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -86,7 +87,7 @@ const Database::DatabaseEntry Database::XdotSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XdotComplexSingle = {
+const Database::DatabaseEntry XdotComplexSingle = {
   "Xdot", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -139,7 +140,7 @@ const Database::DatabaseEntry Database::XdotComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XdotDouble = {
+const Database::DatabaseEntry XdotDouble = {
   "Xdot", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -181,7 +182,7 @@ const Database::DatabaseEntry Database::XdotDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XdotComplexDouble = {
+const Database::DatabaseEntry XdotComplexDouble = {
   "Xdot", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -222,4 +223,5 @@ const Database::DatabaseEntry Database::XdotComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/xgemm.hpp b/src/database/kernels/xgemm.hpp
index ffe3dc57..8303fa83 100644
--- a/src/database/kernels/xgemm.hpp
+++ b/src/database/kernels/xgemm.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmHalf = {
+const Database::DatabaseEntry XgemmHalf = {
   "Xgemm", Precision::kHalf, {
     { // Default
       kDeviceTypeAll, "default", {
@@ -26,7 +27,7 @@ const Database::DatabaseEntry Database::XgemmHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmSingle = {
+const Database::DatabaseEntry XgemmSingle = {
   "Xgemm", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -97,7 +98,7 @@ const Database::DatabaseEntry Database::XgemmSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmComplexSingle = {
+const Database::DatabaseEntry XgemmComplexSingle = {
   "Xgemm", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -168,7 +169,7 @@ const Database::DatabaseEntry Database::XgemmComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmDouble = {
+const Database::DatabaseEntry XgemmDouble = {
   "Xgemm", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -227,7 +228,7 @@ const Database::DatabaseEntry Database::XgemmDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmComplexDouble = {
+const Database::DatabaseEntry XgemmComplexDouble = {
   "Xgemm", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -284,4 +285,5 @@ const Database::DatabaseEntry Database::XgemmComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/xgemm_direct.hpp b/src/database/kernels/xgemm_direct.hpp
index 53dfeaa6..89499cc6 100644
--- a/src/database/kernels/xgemm_direct.hpp
+++ b/src/database/kernels/xgemm_direct.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmDirectHalf = {
+const Database::DatabaseEntry XgemmDirectHalf = {
   "XgemmDirect", Precision::kHalf, {
     { // Default
       kDeviceTypeAll, "default", {
@@ -26,7 +27,7 @@ const Database::DatabaseEntry Database::XgemmDirectHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmDirectSingle = {
+const Database::DatabaseEntry XgemmDirectSingle = {
   "XgemmDirect", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -56,7 +57,7 @@ const Database::DatabaseEntry Database::XgemmDirectSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmDirectComplexSingle = {
+const Database::DatabaseEntry XgemmDirectComplexSingle = {
   "XgemmDirect", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -86,7 +87,7 @@ const Database::DatabaseEntry Database::XgemmDirectComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmDirectDouble = {
+const Database::DatabaseEntry XgemmDirectDouble = {
   "XgemmDirect", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -110,7 +111,7 @@ const Database::DatabaseEntry Database::XgemmDirectDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemmDirectComplexDouble = {
+const Database::DatabaseEntry XgemmDirectComplexDouble = {
   "XgemmDirect", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -133,4 +134,5 @@ const Database::DatabaseEntry Database::XgemmDirectComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/xgemv.hpp b/src/database/kernels/xgemv.hpp
index be6606a6..90355b96 100644
--- a/src/database/kernels/xgemv.hpp
+++ b/src/database/kernels/xgemv.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvHalf = {
+const Database::DatabaseEntry XgemvHalf = {
   "Xgemv", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -33,7 +34,7 @@ const Database::DatabaseEntry Database::XgemvHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvSingle = {
+const Database::DatabaseEntry XgemvSingle = {
   "Xgemv", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -97,7 +98,7 @@ const Database::DatabaseEntry Database::XgemvSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvComplexSingle = {
+const Database::DatabaseEntry XgemvComplexSingle = {
   "Xgemv", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -157,7 +158,7 @@ const Database::DatabaseEntry Database::XgemvComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvDouble = {
+const Database::DatabaseEntry XgemvDouble = {
   "Xgemv", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -209,7 +210,7 @@ const Database::DatabaseEntry Database::XgemvDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvComplexDouble = {
+const Database::DatabaseEntry XgemvComplexDouble = {
   "Xgemv", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -251,4 +252,5 @@ const Database::DatabaseEntry Database::XgemvComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/xgemv_fast.hpp b/src/database/kernels/xgemv_fast.hpp
index cd430dcb..8e6254ac 100644
--- a/src/database/kernels/xgemv_fast.hpp
+++ b/src/database/kernels/xgemv_fast.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastHalf = {
+const Database::DatabaseEntry XgemvFastHalf = {
   "XgemvFast", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -33,7 +34,7 @@ const Database::DatabaseEntry Database::XgemvFastHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastSingle = {
+const Database::DatabaseEntry XgemvFastSingle = {
   "XgemvFast", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -97,7 +98,7 @@ const Database::DatabaseEntry Database::XgemvFastSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastComplexSingle = {
+const Database::DatabaseEntry XgemvFastComplexSingle = {
   "XgemvFast", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -154,7 +155,7 @@ const Database::DatabaseEntry Database::XgemvFastComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastDouble = {
+const Database::DatabaseEntry XgemvFastDouble = {
   "XgemvFast", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -206,7 +207,7 @@ const Database::DatabaseEntry Database::XgemvFastDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastComplexDouble = {
+const Database::DatabaseEntry XgemvFastComplexDouble = {
   "XgemvFast", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -248,4 +249,5 @@ const Database::DatabaseEntry Database::XgemvFastComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/xgemv_fast_rot.hpp b/src/database/kernels/xgemv_fast_rot.hpp
index 2dd7db32..8fe45e01 100644
--- a/src/database/kernels/xgemv_fast_rot.hpp
+++ b/src/database/kernels/xgemv_fast_rot.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastRotHalf = {
+const Database::DatabaseEntry XgemvFastRotHalf = {
   "XgemvFastRot", Precision::kHalf, {
     { // Default
       kDeviceTypeAll, "default", {
@@ -26,7 +27,7 @@ const Database::DatabaseEntry Database::XgemvFastRotHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastRotSingle = {
+const Database::DatabaseEntry XgemvFastRotSingle = {
   "XgemvFastRot", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -67,7 +68,7 @@ const Database::DatabaseEntry Database::XgemvFastRotSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastRotComplexSingle = {
+const Database::DatabaseEntry XgemvFastRotComplexSingle = {
   "XgemvFastRot", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -101,7 +102,7 @@ const Database::DatabaseEntry Database::XgemvFastRotComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastRotDouble = {
+const Database::DatabaseEntry XgemvFastRotDouble = {
   "XgemvFastRot", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -132,7 +133,7 @@ const Database::DatabaseEntry Database::XgemvFastRotDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgemvFastRotComplexDouble = {
+const Database::DatabaseEntry XgemvFastRotComplexDouble = {
   "XgemvFastRot", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -155,4 +156,5 @@ const Database::DatabaseEntry Database::XgemvFastRotComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
diff --git a/src/database/kernels/xger.hpp b/src/database/kernels/xger.hpp
index 7816080f..f2fc2a9a 100644
--- a/src/database/kernels/xger.hpp
+++ b/src/database/kernels/xger.hpp
@@ -12,9 +12,10 @@
 // =================================================================================================
 
 namespace clblast {
+namespace database {
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgerHalf = {
+const Database::DatabaseEntry XgerHalf = {
   "Xger", Precision::kHalf, {
     { // Intel GPUs
       kDeviceTypeGPU, "Intel", {
@@ -33,7 +34,7 @@ const Database::DatabaseEntry Database::XgerHalf = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgerSingle = {
+const Database::DatabaseEntry XgerSingle = {
   "Xger", Precision::kSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -92,7 +93,7 @@ const Database::DatabaseEntry Database::XgerSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgerComplexSingle = {
+const Database::DatabaseEntry XgerComplexSingle = {
   "Xger", Precision::kComplexSingle, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -151,7 +152,7 @@ const Database::DatabaseEntry Database::XgerComplexSingle = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgerDouble = {
+const Database::DatabaseEntry XgerDouble = {
   "Xger", Precision::kDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -199,7 +200,7 @@ const Database::DatabaseEntry Database::XgerDouble = {
 
 // =================================================================================================
 
-const Database::DatabaseEntry Database::XgerComplexDouble = {
+const Database::DatabaseEntry XgerComplexDouble = {
   "Xger", Precision::kComplexDouble, {
     { // AMD GPUs
       kDeviceTypeGPU, "AMD", {
@@ -246,4 +247,5 @@ const Database::DatabaseEntry Database::XgerComplexDouble = {
 };
 
 // =================================================================================================
+} // namespace database
 } // namespace clblast
-- 
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