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sc_TwoBodyMOIntsTransform - Man Page

TwoBodyMOIntsTransform computes two-body integrals in MO basis using parallel integrals-direct AO->MO transformation.

Synopsis

#include <transform_tbint.h>

Inherits sc::SavableState.

Inherited by sc::TwoBodyMOIntsTransform_ijxy, sc::TwoBodyMOIntsTransform_ikjy, and sc::TwoBodyMOIntsTransform_ixjy.

Classes

struct MOSpaces
Predefined enumerated type for the MO spaces.

Public Member Functions

TwoBodyMOIntsTransform (StateIn &)
TwoBodyMOIntsTransform (const std::string &name, const Ref< MOIntsTransformFactory > &factory, const Ref< MOIndexSpace > &space1, const Ref< MOIndexSpace > &space2, const Ref< MOIndexSpace > &space3, const Ref< MOIndexSpace > &space4)
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.
std::string name () const
Returns the name of the transform.
virtual std::string type () const =0
Returns a short label which uniquely identifies the type of transform.
Ref< MemoryGrp > mem () const
Returns the MemoryGrp object.
Ref< MessageGrp > msg () const
Returns the MessageGrp object.
Ref< R12IntsAcc > ints_acc () const
Returns the integrals accumulator object.
Ref< MOIndexSpace > space1 () const
Returns MOIndexSpace object 1.
Ref< MOIndexSpace > space2 () const
Returns MOIndexSpace object 2.
Ref< MOIndexSpace > space3 () const
Returns MOIndexSpace object 3.
Ref< MOIndexSpace > space4 () const
Returns MOIndexSpace object 4.
double print_percent () const
Returns the update print frequency.
int batchsize () const
Returns the batchsize for each pass of the transformation.
int debug () const
Returns the debug level.
bool dynamic () const
Returns whether to use dynamic load balancing.
int num_te_types () const
Returns the number of types of two body integrals computed.
virtual const size_t memgrp_blksize () const =0
Returns the number of bytes allocated for each ij-block of integrals of one type in MemoryGrp.
void set_top_mole (const Ref< MolecularEnergy > &top_mole)
Specifies the top-level MolecularEnergy object to use for checkpointing.
void set_num_te_types (const int num_te_types)
Specifies how many integral types computed by TwoBodyInt to be transformed Default is 1.
void set_memory (const size_t memory)
void set_debug (int debug)
void set_dynamic (bool dynamic)
void set_print_percent (double print_percent)
virtual void compute ()=0
Computes transformed integrals.
virtual void check_int_symm (double threshold=TwoBodyMOIntsTransform::zero_integral) const   throw (ProgrammingError) =0
Check symmetry of transformed integrals.
virtual void obsolete ()
Make the transform obsolete. Next call to compute() will recompute.
DistShellPair::SharedData * shell_pair_data ()
Returns a that data that must be shared between all DistShellPair objects.

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.

Protected Member Functions

unsigned int restart_orbital () const
returns index in range of space1_ where to start the transformation
void init_vars ()
void reinit_acc ()
void alloc_mem (const size_t localmem)
void dealloc_mem ()
int compute_transform_batchsize_ (size_t mem_static, int rank_i)
void memory_report (std::ostream &os=ExEnv::out0()) const
Generates a report on memory for the transform : user-specified limits, projected and actual use.
void mospace_report (std::ostream &os=ExEnv::out0()) const
Generates a report on MO spaces for the transform.
void print_header (std::ostream &os=ExEnv::out0()) const
Prints out standard header.
void print_footer (std::ostream &os=ExEnv::out0()) const
Prints out standard footer.

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 &)

Static Protected Member Functions

static int compute_nij (const int rank_i, const int rank_j, const int nproc, const int me)

Protected Attributes

std::string name_
Ref< MOIntsTransformFactory > factory_
Ref< MolecularEnergy > top_mole_
Ref< MessageGrp > msg_
Ref< MemoryGrp > mem_
Ref< ThreadGrp > thr_
Ref< R12IntsAcc > ints_acc_
Ref< MOIndexSpace > space1_
Ref< MOIndexSpace > space2_
Ref< MOIndexSpace > space3_
Ref< MOIndexSpace > space4_
int num_te_types_
size_t memory_
bool dynamic_
double print_percent_
DistShellPair::SharedData spdata_
int debug_
MOIntsTransformFactory::StoreMethod ints_method_
std::string file_prefix_
size_t mem_static_
int batchsize_
int npass_

Static Protected Attributes

static constexpr const double zero_integral = 1.0e-12
By default, integrals smaller than zero_integral are considered zero.

Additional Inherited Members

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)

Detailed Description

TwoBodyMOIntsTransform computes two-body integrals in MO basis using parallel integrals-direct AO->MO transformation.

Member Function Documentation

virtual void sc::TwoBodyMOIntsTransform::check_int_symm (double threshold = TwoBodyMOIntsTransform::zero_integral) constProgrammingError [pure virtual]

Check symmetry of transformed integrals.

Implemented in sc::TwoBodyMOIntsTransform_ijxy, sc::TwoBodyMOIntsTransform_ikjy, and sc::TwoBodyMOIntsTransform_ixjy.

virtual void sc::TwoBodyMOIntsTransform::compute () [pure virtual]

Computes transformed integrals.

Implemented in sc::TwoBodyMOIntsTransform_ijxy, sc::TwoBodyMOIntsTransform_ikjy, and sc::TwoBodyMOIntsTransform_ixjy.

virtual const size_t sc::TwoBodyMOIntsTransform::memgrp_blksize () const [pure virtual]

Returns the number of bytes allocated for each ij-block of integrals of one type in MemoryGrp. It's guaranteed to be divisible by sizeof(double).

Implemented in sc::TwoBodyMOIntsTransform_ijxy, sc::TwoBodyMOIntsTransform_ikjy, and sc::TwoBodyMOIntsTransform_ixjy.

void sc::TwoBodyMOIntsTransform::memory_report (std::ostream & os = ExEnv::out0()) const [protected]

Generates a report on memory for the transform : user-specified limits, projected and actual use. Assumes formatting info from ExEnv::out0().

void sc::TwoBodyMOIntsTransform::mospace_report (std::ostream & os = ExEnv::out0()) const [protected]

Generates a report on MO spaces for the transform. Assumes formatting info from ExEnv::out0().

void sc::TwoBodyMOIntsTransform::print_header (std::ostream & os = ExEnv::out0()) const [protected]

Prints out standard header. Call at the beginning of compute().

void sc::TwoBodyMOIntsTransform::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::SavableState.

Reimplemented in sc::TwoBodyMOIntsTransform_ijxy, sc::TwoBodyMOIntsTransform_ikjy, and sc::TwoBodyMOIntsTransform_ixjy.

virtual std::string sc::TwoBodyMOIntsTransform::type () const [pure virtual]

Returns a short label which uniquely identifies the type of transform.

Implemented in sc::TwoBodyMOIntsTransform_ijxy, sc::TwoBodyMOIntsTransform_ikjy, and sc::TwoBodyMOIntsTransform_ixjy.

Member Data Documentation

const double sc::TwoBodyMOIntsTransform::zero_integral = 1.0e-12 [static], [constexpr], [protected]

By default, integrals smaller than zero_integral are considered zero. This constant is only used in checking integrals, not computing them.

Author

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Info

Version 2.3.1 MPQC