A clever way to multiply symmetric tensors. More...

Collaboration diagram for Symmetry preserving algorithm for SY<-ASAS:

Functions
int	parity (char const a, char const b, char const *c, int len_A, int len_B)

int	parity (char const a, char const c, int len_A, int len_C)

double	sign (int par)

void	get_rand_as_tsr (Tensor<> &tsr, int seed)

bool	check_asym (Tensor<> &tsr)

bool	check_sym (Tensor<> &tsr)

int64_t	fact (int64_t n)

int64_t	choose (int64_t n, int64_t k)

int64_t	chchoose (int64_t n, int64_t k)

void	chi (char const idx, int idx_len, int p_len, int q_len, int npair, char *idx_p, char *idx_q)

void	chi (char const idx, int idx_len, int p_len, int npair, char ***idx_p)

int	fast_tensor_ctr (int n, int s, int t, int v, World &ctf)

char *	getCmdOption (char begin, char end, const std::string &option)

int	main (int argc, char **argv)

Detailed Description

A clever way to multiply symmetric tensors.

Function Documentation

int64_t chchoose	(	int64_t	n,
		int64_t	k
	)

Definition at line 178 of file fast_sy_as_as_tensor_ctr.cxx.

References fact().

bool check_asym ( Tensor<> & tsr )

Definition at line 120 of file fast_sy_as_as_tensor_ctr.cxx.

References ctf.core::dim, CTF_int::tensor::lens, CTF::Tensor< dtype >::norm2(), CTF_int::tensor::order, CTF_int::tensor::sym, and CTF_int::tensor::wrld.

Referenced by fast_tensor_ctr().

bool check_sym ( Tensor<> & tsr )

Definition at line 143 of file fast_sy_as_as_tensor_ctr.cxx.

References ctf.core::dim, CTF_int::tensor::lens, CTF::Tensor< dtype >::norm2(), CTF_int::tensor::order, CTF_int::tensor::sym, and CTF_int::tensor::wrld.

Referenced by fast_tensor_ctr().

void chi	(	char const *	idx,
		int	idx_len,
		int	p_len,
		int	q_len,
		int *	npair,
		char ***	idx_p,
		char ***	idx_q
	)

Definition at line 182 of file fast_sy_as_as_tensor_ctr.cxx.

References choose(), and ctf.core::np().

Referenced by chi(), and fast_tensor_ctr().

void chi	(	char const *	idx,
		int	idx_len,
		int	p_len,
		int *	npair,
		char ***	idx_p
	)

Definition at line 311 of file fast_sy_as_as_tensor_ctr.cxx.

References chi().

int64_t choose	(	int64_t	n,
		int64_t	k
	)

Definition at line 174 of file fast_sy_as_as_tensor_ctr.cxx.

References fact().

Referenced by chi(), and fast_tensor_ctr().

int64_t fact ( int64_t n )

Definition at line 166 of file fast_sy_as_as_tensor_ctr.cxx.

Referenced by chchoose(), and choose().

int fast_tensor_ctr	(	int	n,
		int	s,
		int	t,
		int	v,
		World &	ctf
	)

Definition at line 322 of file fast_sy_as_as_tensor_ctr.cxx.

References check_asym(), check_sym(), chi(), choose(), CTF::World::comm, get_rand_as_tsr(), CTF::Tensor< dtype >::norm2(), NS, CTF_int::tensor::order, parity(), ctf.core::rank(), and sign().

Referenced by main().

void get_rand_as_tsr	(	Tensor<> &	tsr,
		int	seed
	)

Definition at line 76 of file fast_sy_as_as_tensor_ctr.cxx.

References ctf.core::dim, CTF_int::tensor::lens, CTF_int::tensor::order, parity(), CTF::Tensor< dtype >::read_local(), sign(), CTF_int::tensor::sym, CTF::Tensor< dtype >::write(), and CTF_int::tensor::wrld.

Referenced by fast_tensor_ctr().

char* getCmdOption	(	char **	begin,
		char **	end,
		const std::string &	option
	)

Definition at line 592 of file fast_sy_as_as_tensor_ctr.cxx.

Referenced by main().

int main	(	int	argc,
		char **	argv
	)

Definition at line 603 of file fast_sy_as_as_tensor_ctr.cxx.

References fast_tensor_ctr(), getCmdOption(), ctf.core::np(), and ctf.core::rank().

int parity	(	char const *	a,
		char const *	b,
		char const *	c,
		int	len_A,
		int	len_B
	)

Definition at line 13 of file fast_sy_as_as_tensor_ctr.cxx.

Referenced by fast_tensor_ctr(), get_rand_as_tsr(), and parity().

int parity	(	char const *	a,
		char const *	c,
		int	len_A,
		int	len_C
	)

Definition at line 49 of file fast_sy_as_as_tensor_ctr.cxx.

References ctf.core::b, and parity().

double sign ( int par )

Definition at line 69 of file fast_sy_as_as_tensor_ctr.cxx.

Referenced by fast_tensor_ctr(), and get_rand_as_tsr().

Functions

Detailed Description

Function Documentation