gather_str.hpp File Reference

MPI string gather / allgather helpers (declarations; implementations in shamalgs/src/collective/gather_str.cpp). More...

#include "shambase/aliases_int.hpp"
#include <string>

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Namespaces
namespace	shamalgs
	namespace to contain everything implemented by shamalgs

Functions
void	shamalgs::collective::gather_str (const std::string &send_vec, std::string &recv_vec)
	Gathers a string from all nodes and store the result in a std::string.
void	shamalgs::collective::gather_basic_str (const std::basic_string< byte > &send_vec, std::basic_string< byte > &recv_vec)
	same as gather_str but with std::basic_string
void	shamalgs::collective::allgather_str (const std::string &send_vec, std::string &recv_vec)
	Allgathers a string from all nodes and concatenates it in a std::string.
void	shamalgs::collective::allgather_basic_str (const std::basic_string< byte > &send_vec, std::basic_string< byte > &recv_vec)
	same as allgather_str but with std::basic_string

Detailed Description

MPI string gather / allgather helpers (declarations; implementations in shamalgs/src/collective/gather_str.cpp).

Author

Timothée David–Cléris (tim.s.nosp@m.hamr.nosp@m.ock@p.nosp@m.roto.nosp@m.n.me)

Definition in file gather_str.hpp.

Function Documentation

allgather_basic_str()

void shamalgs::collective::allgather_basic_str	(	const std::basic_string< byte > &	send_vec,
		std::basic_string< byte > &	recv_vec
	)

same as allgather_str but with std::basic_string

Definition at line 151 of file gather_str.cpp.

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allgather_str()

void shamalgs::collective::allgather_str	(	const std::string &	send_vec,
		std::string &	recv_vec
	)

Allgathers a string from all nodes and concatenates it in a std::string.

This function gathers the string send_vec from all nodes and concatenates the result in recv_vec on every rank. The result is ordered by the order of the nodes in the communicator, i.e. the string is ordered by rank.

Definition at line 146 of file gather_str.cpp.

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gather_basic_str()

void shamalgs::collective::gather_basic_str	(	const std::basic_string< byte > &	send_vec,
		std::basic_string< byte > &	recv_vec
	)

same as gather_str but with std::basic_string

Definition at line 140 of file gather_str.cpp.

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gather_str()

void shamalgs::collective::gather_str	(	const std::string &	send_vec,
		std::string &	recv_vec
	)

Gathers a string from all nodes and store the result in a std::string.

This function gathers the string send_vec from all nodes and concatenate the result in recv_vec. The result is ordered by the order of the nodes in the communicator, i.e. the string is ordered by rank.

Todo:

add fault tolerance

Parameters

send_vec	The string to gather from all nodes
recv_vec	The result of the gather. It will contain a concatenation of all the strings gathered from the nodes.

Definition at line 135 of file gather_str.cpp.

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