Comm_Group

Comm_Group#

#include <Comm_Group.h>
Brief description

: Cette classe decrit un groupe de processeurs sur lesquels

How to reference this class#

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:ref:`Comm\_Group <class-comm-group>`

[Comm\_Group](#class-comm-group)

Detailed description#

une portion de code s’execute simultanement. Elle fournit toutes les methodes permettant d’echanger des donnees entre les processeurs du groupe (mpsum, send, recv, …), et de synchroniser les processeurs (barrier). Elle est specialisee selon le support reseau (MPI, PVM, …) Attention, ces methodes sont reservees a des operations de bas niveau (noyau TRUST). Dans le code courant, il faut utiliser les methodes classes de communications de haut niveau : (envoyer(), envoyer_broadcast(), class Schema_Comm , class Process , etc) Pour creer un nouveau groupe et l’utiliser, voir class PE_Groups Pour la procedure d’initialisation, voir PE_Groups::Initialize()

Inherits from#

Inherited by#

Inheritance graph#

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../../../../../_images/classComm__Group__inherit__graph.png

List of Public Static Methods#

List of Public Methods#

List of Protected Methods#

Complete Member Function Documentation#

check_enabled#

Definition
int Comm_Group::check_enabled()
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:ref:`int Comm_Group::check_enabled() <comm-group-public-static-int-comm-group-check-enabled>`

[int Comm_Group::check_enabled()](#comm-group-public-static-int-comm-group-check-enabled)

info#

Definition
const Type_info * Comm_Group::info()
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:ref:`const Type_info * Comm_Group::info() <comm-group-public-static-const-type-info-ptr-comm-group-info>`

[const Type_info * Comm_Group::info()](#comm-group-public-static-const-type-info-ptr-comm-group-info)

self_cast#

Definition
const Comm_Group & Comm_Group::self_cast(const Objet_U &)
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:ref:`const Comm_Group & Comm_Group::self_cast(const Objet_U &) <comm-group-public-static-const-comm-group-ref-comm-group-self-cast-const-objet-u-ref>`

[const Comm_Group & Comm_Group::self_cast(const Objet_U &)](#comm-group-public-static-const-comm-group-ref-comm-group-self-cast-const-objet-u-ref)

self_cast#

Definition
Comm_Group & Comm_Group::self_cast(Objet_U &)
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:ref:`Comm_Group & Comm_Group::self_cast(Objet_U &) <comm-group-public-static-comm-group-ref-comm-group-self-cast-objet-u-ref>`

[Comm_Group & Comm_Group::self_cast(Objet_U &)](#comm-group-public-static-comm-group-ref-comm-group-self-cast-objet-u-ref)

set_check_enabled#

Definition
void Comm_Group::set_check_enabled(int flag)
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:ref:`void Comm_Group::set_check_enabled(int flag) <comm-group-public-static-void-comm-group-set-check-enabled-int-flag>`

[void Comm_Group::set_check_enabled(int flag)](#comm-group-public-static-void-comm-group-set-check-enabled-int-flag)

abort#

Definition
virtual void Comm_Group::abort() const =0
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:ref:`virtual void Comm_Group::abort() const =0 <comm-group-public-virtual-void-comm-group-abort-const-equal-0>`

[virtual void Comm_Group::abort() const =0](#comm-group-public-virtual-void-comm-group-abort-const-equal-0)

all_gather#

Definition
virtual void Comm_Group::all_gather(const void *src_buffer, void *dest_buffer, int data_size) const =0
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:ref:`virtual void Comm_Group::all_gather(const void *src_buffer, void *dest_buffer, int data_size) const =0 <comm-group-public-virtual-void-comm-group-all-gather-const-void-ptr-src-buffer-void-ptr-dest-buffer-int-data-size-const-equal-0>`

[virtual void Comm_Group::all_gather(const void *src_buffer, void *dest_buffer, int data_size) const =0](#comm-group-public-virtual-void-comm-group-all-gather-const-void-ptr-src-buffer-void-ptr-dest-buffer-int-data-size-const-equal-0)

all_gatherv#

Definition
virtual void Comm_Group::all_gatherv(const void *src_buffer, void *dest_buffer, int send_size, const True_int *recv_size, const True_int *displs) const =0
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:ref:`virtual void Comm_Group::all_gatherv(const void *src_buffer, void *dest_buffer, int send_size, const True_int *recv_size, const True_int *displs) const =0 <comm-group-public-virtual-void-comm-group-all-gatherv-const-void-ptr-src-buffer-void-ptr-dest-buffer-int-send-size-const-true-int-ptr-recv-size-const-true-int-ptr-displs-const-equal-0>`

[virtual void Comm_Group::all_gatherv(const void *src_buffer, void *dest_buffer, int send_size, const True_int *recv_size, const True_int *displs) const =0](#comm-group-public-virtual-void-comm-group-all-gatherv-const-void-ptr-src-buffer-void-ptr-dest-buffer-int-send-size-const-true-int-ptr-recv-size-const-true-int-ptr-displs-const-equal-0)

all_to_all#

Definition
virtual void Comm_Group::all_to_all(const void *src_buffer, void *dest_buffer, int data_size) const =0
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:ref:`virtual void Comm_Group::all_to_all(const void *src_buffer, void *dest_buffer, int data_size) const =0 <comm-group-public-virtual-void-comm-group-all-to-all-const-void-ptr-src-buffer-void-ptr-dest-buffer-int-data-size-const-equal-0>`

[virtual void Comm_Group::all_to_all(const void *src_buffer, void *dest_buffer, int data_size) const =0](#comm-group-public-virtual-void-comm-group-all-to-all-const-void-ptr-src-buffer-void-ptr-dest-buffer-int-data-size-const-equal-0)

barrier#

Definition
virtual void Comm_Group::barrier(int tag) const =0
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:ref:`virtual void Comm_Group::barrier(int tag) const =0 <comm-group-public-virtual-void-comm-group-barrier-int-tag-const-equal-0>`

[virtual void Comm_Group::barrier(int tag) const =0](#comm-group-public-virtual-void-comm-group-barrier-int-tag-const-equal-0)

broadcast#

Definition
virtual void Comm_Group::broadcast(void *buffer, int size, int pe_source) const =0
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:ref:`virtual void Comm_Group::broadcast(void *buffer, int size, int pe_source) const =0 <comm-group-public-virtual-void-comm-group-broadcast-void-ptr-buffer-int-size-int-pe-source-const-equal-0>`

[virtual void Comm_Group::broadcast(void *buffer, int size, int pe_source) const =0](#comm-group-public-virtual-void-comm-group-broadcast-void-ptr-buffer-int-size-int-pe-source-const-equal-0)

Comm_Group#

Definition
Comm_Group::Comm_Group()
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:ref:`Comm_Group::Comm_Group() <comm-group-public-comm-group-comm-group>`

[Comm_Group::Comm_Group()](#comm-group-public-comm-group-comm-group)

gather#

Definition
virtual void Comm_Group::gather(const void *src_buffer, void *dest_buffer, int data_size, int root) const =0
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:ref:`virtual void Comm_Group::gather(const void *src_buffer, void *dest_buffer, int data_size, int root) const =0 <comm-group-public-virtual-void-comm-group-gather-const-void-ptr-src-buffer-void-ptr-dest-buffer-int-data-size-int-root-const-equal-0>`

[virtual void Comm_Group::gather(const void *src_buffer, void *dest_buffer, int data_size, int root) const =0](#comm-group-public-virtual-void-comm-group-gather-const-void-ptr-src-buffer-void-ptr-dest-buffer-int-data-size-int-root-const-equal-0)

get_info#

Definition
const Type_info * Comm_Group::get_info() const override
Brief description

Donne des informations sur le type de l’ Objet_U .

Detailed description

Reimplements:

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:ref:`const Type_info * Comm_Group::get_info() const override <comm-group-public-const-type-info-ptr-comm-group-get-info-const-override>`

[const Type_info * Comm_Group::get_info() const override](#comm-group-public-const-type-info-ptr-comm-group-get-info-const-override)

get_new_tag#

Definition
int Comm_Group::get_new_tag() const
Brief description

Cette fonction renvoie un nouveau tag de communication pour le groupe.

Detailed description

Effet de bord : incremente le membre group_communication_tag_.

Referenced By
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:ref:`int Comm_Group::get_new_tag() const <comm-group-public-int-comm-group-get-new-tag-const>`

[int Comm_Group::get_new_tag() const](#comm-group-public-int-comm-group-get-new-tag-const)

mp_collective_op#

Definition
virtual void Comm_Group::mp_collective_op(const double *x, double *resu, const Collective_Op *op, int n) const =0
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:ref:`virtual void Comm_Group::mp_collective_op(const double *x, double *resu, const Collective_Op *op, int n) const =0 <comm-group-public-virtual-void-comm-group-mp-collective-op-const-double-ptr-x-double-ptr-resu-const-collective-op-ptr-op-int-n-const-equal-0>`

[virtual void Comm_Group::mp_collective_op(const double *x, double *resu, const Collective_Op *op, int n) const =0](#comm-group-public-virtual-void-comm-group-mp-collective-op-const-double-ptr-x-double-ptr-resu-const-collective-op-ptr-op-int-n-const-equal-0)

mp_collective_op#

Definition
virtual void Comm_Group::mp_collective_op(const double *x, double *resu, int n, Collective_Op op) const =0
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:ref:`virtual void Comm_Group::mp_collective_op(const double *x, double *resu, int n, Collective_Op op) const =0 <comm-group-public-virtual-void-comm-group-mp-collective-op-const-double-ptr-x-double-ptr-resu-int-n-collective-op-op-const-equal-0>`

[virtual void Comm_Group::mp_collective_op(const double *x, double *resu, int n, Collective_Op op) const =0](#comm-group-public-virtual-void-comm-group-mp-collective-op-const-double-ptr-x-double-ptr-resu-int-n-collective-op-op-const-equal-0)

mp_collective_op#

Definition
virtual void Comm_Group::mp_collective_op(const float *x, float *resu, const Collective_Op *op, int n) const =0
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:ref:`virtual void Comm_Group::mp_collective_op(const float *x, float *resu, const Collective_Op *op, int n) const =0 <comm-group-public-virtual-void-comm-group-mp-collective-op-const-float-ptr-x-float-ptr-resu-const-collective-op-ptr-op-int-n-const-equal-0>`

[virtual void Comm_Group::mp_collective_op(const float *x, float *resu, const Collective_Op *op, int n) const =0](#comm-group-public-virtual-void-comm-group-mp-collective-op-const-float-ptr-x-float-ptr-resu-const-collective-op-ptr-op-int-n-const-equal-0)

mp_collective_op#

Definition
virtual void Comm_Group::mp_collective_op(const float *x, float *resu, int n, Collective_Op op) const =0
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:ref:`virtual void Comm_Group::mp_collective_op(const float *x, float *resu, int n, Collective_Op op) const =0 <comm-group-public-virtual-void-comm-group-mp-collective-op-const-float-ptr-x-float-ptr-resu-int-n-collective-op-op-const-equal-0>`

[virtual void Comm_Group::mp_collective_op(const float *x, float *resu, int n, Collective_Op op) const =0](#comm-group-public-virtual-void-comm-group-mp-collective-op-const-float-ptr-x-float-ptr-resu-int-n-collective-op-op-const-equal-0)

mp_collective_op#

Definition
virtual void Comm_Group::mp_collective_op(const int *x, int *resu, const Collective_Op *op, int n) const =0
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:ref:`virtual void Comm_Group::mp_collective_op(const int *x, int *resu, const Collective_Op *op, int n) const =0 <comm-group-public-virtual-void-comm-group-mp-collective-op-const-int-ptr-x-int-ptr-resu-const-collective-op-ptr-op-int-n-const-equal-0>`

[virtual void Comm_Group::mp_collective_op(const int *x, int *resu, const Collective_Op *op, int n) const =0](#comm-group-public-virtual-void-comm-group-mp-collective-op-const-int-ptr-x-int-ptr-resu-const-collective-op-ptr-op-int-n-const-equal-0)

mp_collective_op#

Definition
virtual void Comm_Group::mp_collective_op(const int *x, int *resu, int n, Collective_Op op) const =0
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:ref:`virtual void Comm_Group::mp_collective_op(const int *x, int *resu, int n, Collective_Op op) const =0 <comm-group-public-virtual-void-comm-group-mp-collective-op-const-int-ptr-x-int-ptr-resu-int-n-collective-op-op-const-equal-0>`

[virtual void Comm_Group::mp_collective_op(const int *x, int *resu, int n, Collective_Op op) const =0](#comm-group-public-virtual-void-comm-group-mp-collective-op-const-int-ptr-x-int-ptr-resu-int-n-collective-op-op-const-equal-0)

mp_collective_op#

Definition
virtual void Comm_Group::mp_collective_op(const trustIdType *x, trustIdType *resu, const Collective_Op *op, int n) const =0
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:ref:`virtual void Comm_Group::mp_collective_op(const trustIdType *x, trustIdType *resu, const Collective_Op *op, int n) const =0 <comm-group-public-virtual-void-comm-group-mp-collective-op-const-trustidtype-ptr-x-trustidtype-ptr-resu-const-collective-op-ptr-op-int-n-const-equal-0>`

[virtual void Comm_Group::mp_collective_op(const trustIdType *x, trustIdType *resu, const Collective_Op *op, int n) const =0](#comm-group-public-virtual-void-comm-group-mp-collective-op-const-trustidtype-ptr-x-trustidtype-ptr-resu-const-collective-op-ptr-op-int-n-const-equal-0)

mp_collective_op#

Definition
virtual void Comm_Group::mp_collective_op(const trustIdType *x, trustIdType *resu, int n, Collective_Op op) const =0
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:ref:`virtual void Comm_Group::mp_collective_op(const trustIdType *x, trustIdType *resu, int n, Collective_Op op) const =0 <comm-group-public-virtual-void-comm-group-mp-collective-op-const-trustidtype-ptr-x-trustidtype-ptr-resu-int-n-collective-op-op-const-equal-0>`

[virtual void Comm_Group::mp_collective_op(const trustIdType *x, trustIdType *resu, int n, Collective_Op op) const =0](#comm-group-public-virtual-void-comm-group-mp-collective-op-const-trustidtype-ptr-x-trustidtype-ptr-resu-int-n-collective-op-op-const-equal-0)

nproc#

Definition
int Comm_Group::nproc() const
Brief description

Renvoie le nombre de processeurs dans le groupe *this.

Detailed description
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:ref:`int Comm_Group::nproc() const <comm-group-public-int-comm-group-nproc-const>`

[int Comm_Group::nproc() const](#comm-group-public-int-comm-group-nproc-const)

rank#

Definition
int Comm_Group::rank() const
Brief description

Renvoie le rang du processeur local dans le groupe *this.

Detailed description

ou - 1 si je ne suis pas dans le groupe.

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:ref:`int Comm_Group::rank() const <comm-group-public-int-comm-group-rank-const>`

[int Comm_Group::rank() const](#comm-group-public-int-comm-group-rank-const)

recv#

Definition
virtual void Comm_Group::recv(int pe, void *buffer, int size, int tag) const =0
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:ref:`virtual void Comm_Group::recv(int pe, void *buffer, int size, int tag) const =0 <comm-group-public-virtual-void-comm-group-recv-int-pe-void-ptr-buffer-int-size-int-tag-const-equal-0>`

[virtual void Comm_Group::recv(int pe, void *buffer, int size, int tag) const =0](#comm-group-public-virtual-void-comm-group-recv-int-pe-void-ptr-buffer-int-size-int-tag-const-equal-0)

send#

Definition
virtual void Comm_Group::send(int pe, const void *buffer, int size, int tag) const =0
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:ref:`virtual void Comm_Group::send(int pe, const void *buffer, int size, int tag) const =0 <comm-group-public-virtual-void-comm-group-send-int-pe-const-void-ptr-buffer-int-size-int-tag-const-equal-0>`

[virtual void Comm_Group::send(int pe, const void *buffer, int size, int tag) const =0](#comm-group-public-virtual-void-comm-group-send-int-pe-const-void-ptr-buffer-int-size-int-tag-const-equal-0)

send_recv_finish#

Definition
virtual void Comm_Group::send_recv_finish() const =0
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:ref:`virtual void Comm_Group::send_recv_finish() const =0 <comm-group-public-virtual-void-comm-group-send-recv-finish-const-equal-0>`

[virtual void Comm_Group::send_recv_finish() const =0](#comm-group-public-virtual-void-comm-group-send-recv-finish-const-equal-0)

send_recv_start#

Definition
virtual void Comm_Group::send_recv_start(const ArrOfInt &send_list, const ArrOfInt &send_size, const char *const *const send_buffers, const ArrOfInt &recv_list, const ArrOfInt &recv_size, char *const *const recv_buffers, TypeHint typehint=CHAR) const =0
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:ref:`virtual void Comm_Group::send_recv_start(const ArrOfInt &send_list, const ArrOfInt &send_size, const char *const *const send_buffers, const ArrOfInt &recv_list, const ArrOfInt &recv_size, char *const *const recv_buffers, TypeHint typehint=CHAR) const =0 <comm-group-public-virtual-void-comm-group-send-recv-start-const-arrofint-ref-send-list-const-arrofint-ref-send-size-const-char-ptr-const-ptr-const-send-buffers-const-arrofint-ref-recv-list-const-arrofint-ref-recv-size-char-ptr-const-ptr-const-recv-buffers-typehint-typehint-equal-char-const-equal-0>`

[virtual void Comm_Group::send_recv_start(const ArrOfInt &send_list, const ArrOfInt &send_size, const char *const *const send_buffers, const ArrOfInt &recv_list, const ArrOfInt &recv_size, char *const *const recv_buffers, TypeHint typehint=CHAR) const =0](#comm-group-public-virtual-void-comm-group-send-recv-start-const-arrofint-ref-send-list-const-arrofint-ref-send-size-const-char-ptr-const-ptr-const-send-buffers-const-arrofint-ref-recv-list-const-arrofint-ref-recv-size-char-ptr-const-ptr-const-recv-buffers-typehint-typehint-equal-char-const-equal-0)

~Comm_Group#

Definition
Comm_Group::~Comm_Group() override
Brief description

Destructeur (pour l’instant, rien a faire)

Detailed description
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:ref:`Comm_Group::~Comm_Group() override <comm-group-public-comm-group-dtor-comm-group-override>`

[Comm_Group::~Comm_Group() override](#comm-group-public-comm-group-dtor-comm-group-override)

Comm_Group#

Definition
Comm_Group::Comm_Group(const Comm_Group &)
Brief description

Le constructeur par copie est interdit !

Detailed description
References
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:ref:`Comm_Group::Comm_Group(const Comm_Group &) <comm-group-protected-comm-group-comm-group-const-comm-group-ref>`

[Comm_Group::Comm_Group(const Comm_Group &)](#comm-group-protected-comm-group-comm-group-const-comm-group-ref)

init_group#

Definition
void Comm_Group::init_group(const ArrOfInt &pe_list)
Brief description

Cette fonction doit etre appelee simultanement par tous les PEs du groupe current_group avec les memes parametres.

Detailed description

Les processeurs de la pe_list sont les rangs dans current_group() des processeurs du nouveau groupe. Le maitre du groupe est le premier de la liste, le rang du processeur courant, s’il est dans le groupe est determine par son rang dans la liste. Il ne doit pas y avoir de doublon. Cette fonction est appelee par les methodes init_group des classes derivees.

References
Referenced By
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:ref:`void Comm_Group::init_group(const ArrOfInt &pe_list) <comm-group-protected-void-comm-group-init-group-const-arrofint-ref-pe-list>`

[void Comm_Group::init_group(const ArrOfInt &pe_list)](#comm-group-protected-void-comm-group-init-group-const-arrofint-ref-pe-list)

init_group_node#

Definition
void Comm_Group::init_group_node(int nproc, int loc_rank, int glob_rank)
Brief description

Initialize all the information relative to world sizes and ranks for node communicator.

Detailed description

This method is called by derived classes when initializing communicator on node

References
Referenced By
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:ref:`void Comm_Group::init_group_node(int nproc, int loc_rank, int glob_rank) <comm-group-protected-void-comm-group-init-group-node-int-nproc-int-loc-rank-int-glob-rank>`

[void Comm_Group::init_group_node(int nproc, int loc_rank, int glob_rank)](#comm-group-protected-void-comm-group-init-group-node-int-nproc-int-loc-rank-int-glob-rank)

init_group_trio#

Definition
void Comm_Group::init_group_trio(int nproc, int rank)
Brief description

Initialise le groupe_TRUST().

Detailed description

Cette methode est appelee par init_group_trio() des classes derivees

References
Referenced By
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:ref:`void Comm_Group::init_group_trio(int nproc, int rank) <comm-group-protected-void-comm-group-init-group-trio-int-nproc-int-rank>`

[void Comm_Group::init_group_trio(int nproc, int rank)](#comm-group-protected-void-comm-group-init-group-trio-int-nproc-int-rank)

operator =#

Definition
const Comm_Group & Comm_Group::operator=(const Comm_Group &)
Brief description

La copie est interdite !

Detailed description
References
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:ref:`const Comm_Group & Comm_Group::operator=(const Comm_Group &) <comm-group-protected-const-comm-group-ref-comm-group-operator-equal-const-comm-group-ref>`

[const Comm_Group & Comm_Group::operator=(const Comm_Group &)](#comm-group-protected-const-comm-group-ref-comm-group-operator-equal-const-comm-group-ref)

printOn#

Definition
Sortie & Comm_Group::printOn(Sortie &x) const override
Brief description

Ecriture de l’objet sur un flot de sortie Methode a surcharger.

Detailed description

Reimplements:

References
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:ref:`Sortie & Comm_Group::printOn(Sortie &x) const override <comm-group-protected-sortie-ref-comm-group-printon-sortie-ref-x-const-override>`

[Sortie & Comm_Group::printOn(Sortie &x) const override](#comm-group-protected-sortie-ref-comm-group-printon-sortie-ref-x-const-override)

readOn#

Definition
Entree & Comm_Group::readOn(Entree &) override
Brief description

Lecture d’un Objet_U sur un flot d’entree Methode a surcharger.

Detailed description

Reimplements:

References
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:ref:`Entree & Comm_Group::readOn(Entree &) override <comm-group-protected-entree-ref-comm-group-readon-entree-ref-override>`

[Entree & Comm_Group::readOn(Entree &) override](#comm-group-protected-entree-ref-comm-group-readon-entree-ref-override)

Attributes Documentation#

info_obj (public)
const Type_info Comm_Group::info_obj
check_enabled_ (private)
int Comm_Group::check_enabled_ = 0
static_group_number_ (private)
int Comm_Group::static_group_number_ = 0
group_communication_tag_ (private)
int Comm_Group::group_communication_tag_ = - 1
group_number_ (private)
int Comm_Group::group_number_ = - 1
group_tag_increment_ (private)
int Comm_Group::group_tag_increment_ = - 1
local_ranks_ (private)
ArrOfInt Comm_Group::local_ranks_
nproc_ (private)
int Comm_Group::nproc_ = - 1
rank_ (private)
int Comm_Group::rank_ = - 1
world_ranks_ (private)
ArrOfInt Comm_Group::world_ranks_

Friends#

  • friend class PE_Groups

Enums#

Comm_Group::Collective_Op#

Location: trust-code/src/Kernel/Utilitaires/Comm_Group.h:52

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:ref:`Comm\_Group::Collective\_Op <enum-none-comm-group-collective-op>`

[Comm\_Group::Collective\_Op](#enum-none-comm-group-collective-op)

  • COLL_SUM

  • COLL_MIN

  • COLL_MAX

  • COLL_PARTIAL_SUM

Comm_Group::TypeHint#

Location: trust-code/src/Kernel/Utilitaires/Comm_Group.h:78

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:ref:`Comm\_Group::TypeHint <enum-none-comm-group-typehint>`

[Comm\_Group::TypeHint](#enum-none-comm-group-typehint)

  • CHAR

  • INT

  • DOUBLE

  • FLOAT

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