1 files changed, 90 insertions, 0 deletions
diff --git a/include/internal/database.h b/include/internal/database.h
new file mode 100644
index 00000000..dbbdd5c0
--- /dev/null
+++ b/include/internal/database.h
@@ -0,0 +1,90 @@
+
+// =================================================================================================
+// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. 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 the Database class, providing a static variable holding the actual database
+// information. The class also provides utility functions to search the database and to access a
+// found entry by parameter-key. The database itself is filled in the corresponding source-file and
+// partially also by the database/xxxxx.h files, in which kernel-specific parameters are found.
+//
+// =================================================================================================
+
+#ifndef CLBLAST_DATABASE_H_
+#define CLBLAST_DATABASE_H_
+
+#include <string>
+#include <vector>
+#include <unordered_map>
+
+#include "internal/utilities.h"
+
+namespace clblast {
+// =================================================================================================
+
+// See comment at top of file for a description of the class
+class Database {
+ public:
+
+  // Type alias for the database parameters
+  using Parameters = std::unordered_map<std::string,size_t>;
+
+  // Structures for content inside the database
+  struct DatabaseDevice {
+    const std::string name;
+    const Parameters parameters;
+  };
+  struct DatabaseVendor {
+    const cl_device_type type;
+    const std::string name;
+    const std::vector<DatabaseDevice> devices;
+  };
+  struct DatabaseEntry {
+    const std::string kernel;
+    const Precision precision;
+    const std::vector<DatabaseVendor> vendors;
+  };
+
+  // The default vendor or device
+  static constexpr auto kDefault = "Default";
+
+  // The database consists of separate database entries, stored together in a vector
+  static const DatabaseEntry XaxpySingle, XaxpyDouble, XaxpyComplexSingle, XaxpyComplexDouble;
+  static const DatabaseEntry XgemmSingle, XgemmDouble, XgemmComplexSingle, XgemmComplexDouble;
+  static const DatabaseEntry CopySingle, CopyDouble, CopyComplexSingle, CopyComplexDouble;
+  static const DatabaseEntry PadSingle, PadDouble, PadComplexSingle, PadComplexDouble;
+  static const DatabaseEntry TraSingle, TraDouble, TraComplexSingle, TraComplexDouble;
+  static const DatabaseEntry PadTraSingle, PadTraDouble, PadTraComplexSingle, PadTraComplexDouble;
+  static const std::vector<DatabaseEntry> database;
+
+  // The constructor
+  explicit Database(const CommandQueue &queue, const std::vector<std::string> &routines,
+                    const Precision precision);
+
+  // Accessor of values by key
+  size_t operator[](const std::string key) const { return parameters_.find(key)->second; }
+
+  // Obtain a list of OpenCL pre-processor defines based on the parameters
+  std::string GetDefines() const;
+
+ private:
+  Parameters Search(const std::string &this_kernel, const cl_device_type this_type,
+                    const std::string &this_vendor, const std::string &this_device,
+                    const Precision this_precision) const;
+
+  // Tests equality between a database-vendor string and an OpenCL vendor string
+  bool VendorEqual(const std::string &db_vendor, const std::string &cl_vendor) const;
+
+  // Found parameters suitable for this device/kernel
+  Parameters parameters_;
+};
+
+// =================================================================================================
+} // namespace clblast
+
+// CLBLAST_DATABASE_H_
+#endif