diff options
| author | Tor Aamodt <[email protected]> | 2010-07-15 18:09:46 -0800 |
|---|---|---|
| committer | Tor Aamodt <[email protected]> | 2010-07-15 18:09:46 -0800 |
| commit | 69f2911e04ffb1b19eef1fafb8c040af271f656e (patch) | |
| tree | 231d3b6bdc3a202f7c255bfcf7bf2c36e32cee9e /src/intersim/allocator.hpp | |
creating branch for adding support for CUDA 3.x and Fermi
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6829]
Diffstat (limited to 'src/intersim/allocator.hpp')
| -rw-r--r-- | src/intersim/allocator.hpp | 122 |
1 files changed, 122 insertions, 0 deletions
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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