# sc::R12IntsAcc_MPIIOFile Class Reference

Inheritance diagram for sc::R12IntsAcc_MPIIOFile:

List of all members.

## Classes
struct | PairBlkInfo
## Public Member Functions
| R12IntsAcc_MPIIOFile (Ref< MemoryGrp > &mem, const char *filename, int num_te_types, int ni, int nj, int nx, int ny)
| R12IntsAcc_MPIIOFile (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_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 read content.
void | deactivate ()
| Done reading content - activate the associated MemoryGrp This is a collective operation.
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 everywhere.
bool | has_access (int proc) const
| Does this task have access to all the integrals?
bool | can_restart () const
| Can restart MPI-IO-based accumulator.
int | ij_index (int i, int j) const
## Protected Member Functions
void | check_error_code_ (int errcod) const
| Utility function to check MPI I/O error codes.
void | init (bool restart)
int | ntasks () const
| total number of tasks
int | taskid () const
| ID of this task.
## Protected Attributes
Ref< MemoryGrp > | mem_
int | nproc_
size_t | nints_per_block_
char * | filename_
MPI_File | datafile_
struct sc::R12IntsAcc_MPIIOFile::PairBlkInfo * | pairblk_

## Member Function Documentation

void sc::R12IntsAcc_MPIIOFile::commit | ( |  | ) | `[virtual]`

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.

void sc::R12IntsAcc_MPIIOFile::save_data_state | ( | StateOut & |  | ) | `[virtual]`

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.

Reimplemented in sc::R12IntsAcc_MPIIOFile_Ind.

The documentation for this class was generated from the following file:

- r12ia_mpiiofile.h