Communicator Configuration

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Modules | Data Structures | Macros

Communicator Configuration

Structure that allows for customizing Communicator behavior via ncclCommInitRankConfig. More...

Collaboration diagram for Communicator Configuration:

Modules
	configuration
	Users can assign value to attributes to specify the behavior of a communicator.

Data Structures
struct	ncclConfig_t

Macros
#define	NCCL_CONFIG_INITIALIZER

Detailed Description

Structure that allows for customizing Communicator behavior via ncclCommInitRankConfig.

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Data Structure Documentation

◆ ncclConfig_t

struct ncclConfig_t

Definition at line 82 of file rccl.h.

Collaboration diagram for ncclConfig_t:

Data Fields
int	blocking	Whether or not calls should block or not
int	cgaClusterSize	Cooperative group array cluster size
unsigned int	magic	Should not be touched
int	maxCTAs	Maximum number of cooperative thread arrays (blocks)
int	minCTAs	Minimum number of cooperative thread arrays (blocks)
const char *	netName	Force NCCL to use a specfic network
unsigned long	size	Should not be touched
int	splitShare	Allow communicators to share resources
unsigned int	version	Should not be touched

Macro Definition Documentation

◆ NCCL_CONFIG_INITIALIZER

#define NCCL_CONFIG_INITIALIZER

Value:

{ \

sizeof(ncclConfig_t), /* size */ \

0xcafebeef, /* magic */ \

NCCL_VERSION(NCCL_MAJOR, NCCL_MINOR, NCCL_PATCH), /* version */ \

NCCL_CONFIG_UNDEF_INT, /* blocking */ \

NCCL_CONFIG_UNDEF_INT, /* cgaClusterSize */ \

NCCL_CONFIG_UNDEF_INT, /* minCTAs */ \

NCCL_CONFIG_UNDEF_INT, /* maxCTAs */ \

NCCL_CONFIG_UNDEF_PTR, /* netName */ \

NCCL_CONFIG_UNDEF_INT /* splitShare */ \

}

ncclConfig_t

Definition rccl.h:83

NCCL_PATCH

#define NCCL_PATCH

Definition rccl.h:17

NCCL_MINOR

#define NCCL_MINOR

Definition rccl.h:16

NCCL_MAJOR

#define NCCL_MAJOR

Definition rccl.h:15

NCCL_CONFIG_UNDEF_INT

#define NCCL_CONFIG_UNDEF_INT

Definition rccl.h:69

NCCL_CONFIG_UNDEF_PTR

#define NCCL_CONFIG_UNDEF_PTR

Definition rccl.h:70

Definition at line 99 of file rccl.h.

100 { \

101 sizeof(ncclConfig_t), /* size */ \

102 0xcafebeef, /* magic */ \

103 NCCL_VERSION(NCCL_MAJOR, NCCL_MINOR, NCCL_PATCH), /* version */ \

104 NCCL_CONFIG_UNDEF_INT, /* blocking */ \

105 NCCL_CONFIG_UNDEF_INT, /* cgaClusterSize */ \

106 NCCL_CONFIG_UNDEF_INT, /* minCTAs */ \

107 NCCL_CONFIG_UNDEF_INT, /* maxCTAs */ \

108 NCCL_CONFIG_UNDEF_PTR, /* netName */ \

109 NCCL_CONFIG_UNDEF_INT /* splitShare */ \

110 }

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