From 69f2911e04ffb1b19eef1fafb8c040af271f656e Mon Sep 17 00:00:00 2001
From: Tor Aamodt <aamodt@ece.ubc.ca>
Date: Thu, 15 Jul 2010 18:09:46 -0800
Subject: creating branch for adding support for CUDA 3.x and Fermi

[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6829]
---
 src/intersim/allocator.hpp | 122 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 src/intersim/allocator.hpp

(limited to 'src/intersim/allocator.hpp')

diff --git a/src/intersim/allocator.hpp b/src/intersim/allocator.hpp
new file mode 100644
index 0000000..ac77a3a
--- /dev/null
+++ b/src/intersim/allocator.hpp
@@ -0,0 +1,122 @@
+#ifndef _ALLOCATOR_HPP_
+#define _ALLOCATOR_HPP_
+
+#include <string>
+#include <list>
+
+#include "module.hpp"
+#include "config_utils.hpp"
+
+class Allocator : public Module {
+protected:
+   const int _inputs;
+   const int _outputs;
+
+   int *_inmatch;
+   int *_outmatch;
+
+   int *_outmask;
+
+   void _ClearMatching( );
+public:
+
+   struct sRequest {
+      int port;
+      int label;
+      int in_pri;
+      int out_pri;
+   };
+
+   Allocator( const Configuration &config,
+              Module *parent, const string& name,
+              int inputs, int outputs );
+   virtual ~Allocator( );
+
+   virtual void Clear( ) = 0;
+
+   virtual int  ReadRequest( int in, int out ) const = 0;
+   virtual bool ReadRequest( sRequest &req, int in, int out ) const = 0;
+
+   virtual void AddRequest( int in, int out, int label = 1, 
+                            int in_pri = 0, int out_pri = 0 ) = 0;
+   virtual void RemoveRequest( int in, int out, int label = 1 ) = 0;
+
+   virtual void Allocate( ) = 0;
+
+   void MaskOutput( int out, int mask = 1 );
+
+   int OutputAssigned( int in ) const;
+   int InputAssigned( int out ) const;
+
+   virtual void PrintRequests( ) const = 0;
+
+   static Allocator *NewAllocator( const Configuration &config,
+                                   Module *parent, const string& name,
+                                   const string &alloc_type, 
+                                   int inputs, int input_speedup,
+                                   int outputs, int output_speedup );
+};
+
+//==================================================
+// A dense allocator stores the entire request
+// matrix.
+//==================================================
+
+class DenseAllocator : public Allocator {
+protected:
+   sRequest **_request;
+
+public:
+   DenseAllocator( const Configuration &config,
+                   Module *parent, const string& name,
+                   int inputs, int outputs );
+   virtual ~DenseAllocator( );
+
+   void Clear( );
+
+   int  ReadRequest( int in, int out ) const;
+   bool ReadRequest( sRequest &req, int in, int out ) const;
+
+   void AddRequest( int in, int out, int label = 1, 
+                    int in_pri = 0, int out_pri = 0 );
+   void RemoveRequest( int in, int out, int label = 1 );
+
+   virtual void Allocate( ) = 0;
+
+   void PrintRequests( ) const;
+};
+
+//==================================================
+// A sparse allocator only stores the requests
+// (allows for a more efficient implementation).
+//==================================================
+
+class SparseAllocator : public Allocator {
+protected:
+   list<int> _in_occ;
+   list<int> _out_occ;
+
+   list<sRequest> *_in_req;
+   list<sRequest> *_out_req;
+
+public:
+   SparseAllocator( const Configuration &config,
+                    Module *parent, const string& name,
+                    int inputs, int outputs );
+   virtual ~SparseAllocator( );
+
+   void Clear( );
+
+   int  ReadRequest( int in, int out ) const;
+   bool ReadRequest( sRequest &req, int in, int out ) const;
+
+   void AddRequest( int in, int out, int label = 1, 
+                    int in_pri = 0, int out_pri = 0 );
+   void RemoveRequest( int in, int out, int label = 1 );
+
+   virtual void Allocate( ) = 0;
+
+   void PrintRequests( ) const;
+};
+
+#endif
-- 
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