sc_R12IntsAcc_Node0File - Man Page

R12IntsAcc_Node0File (Ref< MemoryGrp > &mem, const char *filename, int num_te_types, int ni, int nj, int nx, int ny)
R12IntsAcc_Node0File (StateIn &)
void save_data_state (StateOut &)
Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them.
void store_memorygrp (Ref< MemoryGrp > &mem, int ni, const size_t blksize=0)
Stores all pair block of integrals held in mem.
void store_pair_block (int i, int j, double *ints)
Stores an ij pair block of integrals to the file.
void commit ()
Commit the content of the accumulator for reading - deactivate the associated MemoryGrp and activate the accumulator.
void activate ()
Call when ready to start reading content.
void deactivate ()
Done reading content - activate the associated MemoryGrp This is a collective operation.
double * retrieve_pair_block (int i, int j, tbint_type oper_type)
Retrieves an ij pair block of integrals from the file.
void release_pair_block (int i, int j, tbint_type oper_type)
Releases an ij pair block of integrals.
bool is_local (int i, int j) const
Is this block stored locally?
bool is_avail (int i, int j) const
In this implementation blocks are available only on node 0.
bool has_access (int proc) const
Does this task have access to all the integrals?
bool can_restart () const
Can restart Node0File-based accumulator.
int ij_index (int i, int j) const
int ij_proc (int i, int j) const

Public Member Functions inherited from sc::R12IntsAcc
R12IntsAcc (int num_te_types, int ni, int nj, int nx, int ny)
R12IntsAcc (StateIn &)
int num_te_types () const
The number of types of integrals that are being handled together.
int ni () const
Rank of index space i.
int nj () const
Rank of index space j.
int nx () const
Rank of index space x.
int ny () const
Rank of index space y.
size_t blocksize () const
Size of each block of the integrals of one type, in double words.
int next_orbital () const
The index of the first orbital in the next integrals batch to be stored.
bool is_committed ()
Has the content of the accumulator been commited for reading?
const bool is_active ()
Check if can read content.
int tasks_with_access (vector< int > &twa_map) const
Returns the total number of tasks with access to integrals.

Public Member Functions inherited from sc::SavableState
SavableState & operator= (const SavableState &)
void save_state (StateOut &)
Save the state of the object as specified by the StateOut object.
void save_object_state (StateOut &)
This can be used for saving state when the exact type of the object is known for both the save and the restore.
virtual void save_vbase_state (StateOut &)
Save the virtual bases for the object.

Public Member Functions inherited from sc::DescribedClass
DescribedClass (const DescribedClass &)
DescribedClass & operator= (const DescribedClass &)
ClassDesc * class_desc () const  throw ()
This returns the unique pointer to the ClassDesc corresponding to the given type_info object.
const char * class_name () const
Return the name of the object's exact type.
int class_version () const
Return the version of the class.
virtual void print (std::ostream &=ExEnv::out0()) const
Print the object.

Public Member Functions inherited from sc::RefCount
int lock_ptr () const
Lock this object.
int unlock_ptr () const
Unlock this object.
void use_locks (bool inVal)
start and stop using locks on this object
refcount_t nreference () const
Return the reference count.
refcount_t reference ()
Increment the reference count and return the new count.
refcount_t dereference ()
Decrement the reference count and return the new count.
int managed () const
void unmanage ()
Turn off the reference counting mechanism for this object.
int managed () const
Return 1 if the object is managed. Otherwise return 0.

Public Member Functions inherited from sc::Identity
Identifier identifier ()
Return the Identifier for this argument.

Public Types inherited from sc::R12IntsAcc

enum tbint_type { eri =0, r12 =1, r12t1 =2, r12t2 =3 }
Types of two-body operators that R12IntsAcc understands.

Static Public Member Functions inherited from sc::SavableState
static void save_state (SavableState *s, StateOut &)
static SavableState * restore_state (StateIn &si)
Restores objects saved with save_state.
static SavableState * key_restore_state (StateIn &si, const char *keyword)
Like restore_state, but keyword is used to override values while restoring.
static SavableState * dir_restore_state (StateIn &si, const char *objectname, const char *keyword=0)

Static Public Attributes inherited from sc::R12IntsAcc
static const int max_num_te_types_ = 4

Protected Member Functions inherited from sc::R12IntsAcc
void inc_next_orbital (int ni)
The index of the first orbital in the next integrals batch to be stored.

Protected Member Functions inherited from sc::SavableState
SavableState (const SavableState &)
SavableState (StateIn &)
Each derived class StateIn CTOR handles the restore corresponding to calling save_object_state, save_vbase_state, and save_data_state listed above.

Protected Member Functions inherited from sc::RefCount
RefCount (const RefCount &)
RefCount & operator= (const RefCount &)

Protected Attributes inherited from sc::R12IntsAcc
int ni_
int nj_
int nx_
int ny_
size_t nxy_
size_t blksize_
size_t blocksize_
int next_orbital_
bool committed_
bool active_

Call when ready to start reading content.

Reimplemented from sc::R12IntsAcc.

Can restart Node0File-based accumulator.

Implements sc::R12IntsAcc.

Commit the content of the accumulator for reading - deactivate the associated MemoryGrp and activate the accumulator. This is a collective operation.

Reimplemented from sc::R12IntsAcc.

Done reading content - activate the associated MemoryGrp This is a collective operation.

Reimplemented from sc::R12IntsAcc.

Does this task have access to all the integrals?

Implements sc::R12IntsAcc.

In this implementation blocks are available only on node 0.

Implements sc::R12IntsAcc.

Is this block stored locally?

Implements sc::R12IntsAcc.

Releases an ij pair block of integrals.

Implements sc::R12IntsAcc.

Retrieves an ij pair block of integrals from the file.

Implements sc::R12IntsAcc.

Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them. This must be implemented by the derived class if the class has data.

Reimplemented from sc::R12IntsAcc.

Stores all pair block of integrals held in mem. By default blocks are appended to the end of the same file, i.e. they are assumed to have come from consecutive passes of the same transformation. This is a collective operation. See documentation for R12IntsAcc::store_memorygrp() for more info.

Implements sc::R12IntsAcc.

Stores an ij pair block of integrals to the file.

Implements sc::R12IntsAcc.