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NAME

       sc::R12IntsAcc_MPIIOFile

SYNOPSIS

       Inherits sc::R12IntsAcc.

       Inherited by sc::R12IntsAcc_MPIIOFile_Ind.

   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_

   Additional Inherited Members

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.

Author

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