tensor_basic.hpp

 
#ifndef EXATN_NUMERICS_TENSOR_BASIC_HPP_
#define EXATN_NUMERICS_TENSOR_BASIC_HPP_
 
#include <cstdint>
 
namespace exatn{
 
using Int4 = int32_t;
using Int8 = int64_t;
using UInt4 = uint32_t;
using UInt8 = uint64_t;
 
using SpaceId = unsigned int;              //space id type
using SubspaceId = unsigned long long int; //subspace id type
using SymmetryId = int;                    //symmetry id type
using DimExtent = unsigned long long int;  //dimension extent type
using DimOffset = unsigned long long int;  //dimension base offset type
 
using ScopeId = unsigned int; //TAProL scope ID type
 
constexpr DimExtent MAX_SPACE_DIM = 0xFFFFFFFFFFFFFFFF; //max dimension of unregistered (anonymous) spaces
constexpr SpaceId SOME_SPACE = 0; //any unregistered (anonymous) space (all registered spaces will have SpaceId > 0)
constexpr SubspaceId FULL_SUBSPACE = 0; //every space has its trivial (full) subspace automatically registered as subspace 0
constexpr SubspaceId UNREG_SUBSPACE = 0xFFFFFFFFFFFFFFFF; //id of any unregistered subspace
 
enum class LegDirection{
 UNDIRECT, //no direction
 INWARD,   //inward direction
 OUTWARD   //outward direction
};
 
enum class TensorOpCode{
 NOOP,           //no operation
 CREATE,         //tensor creation
 DESTROY,        //tensor destruction
 TRANSFORM,      //tensor transformation/initialization
 ADD,            //tensor addition
 CONTRACT        //tensor contraction
};
 
enum class TensorElementType{
 VOID,
 REAL16,
 REAL32,
 REAL64,
 COMPLEX16,
 COMPLEX32,
 COMPLEX64
};
 
} //namespace exatn
 
#endif //EXATN_NUMERICS_TENSOR_BASIC_HPP_