NCCL

E209960

GPU communication library collective communications library communication library parallel computing library

NCCL (NVIDIA Collective Communications Library) is a high-performance library that optimizes multi-GPU and multi-node communication for deep learning and HPC applications.

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All labels observed (3)

Label	Occurrences
NCCL canonical	2
NVIDIA Collective Communications Library	1
NVIDIA NCCL	1

How this entity was disambiguated

This entity first appeared as the object of triple T1893382 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: NCCL
Context triple: [NVIDIA CUDA, includes, NCCL]

A. NVIDIA CUDA
NVIDIA CUDA is a parallel computing platform and programming model that enables developers to use NVIDIA GPUs for general-purpose high-performance computing.
B. NVIDIA AI Enterprise software suite
NVIDIA AI Enterprise software suite is a comprehensive, enterprise-grade collection of AI tools, frameworks, and optimized software designed to accelerate the development and deployment of AI and data analytics workloads across modern data centers and clouds.
C. GPU
The GPU (State Political Directorate) was the Soviet Union’s early secret police and intelligence agency that operated in the 1920s, overseeing political repression and internal security before later reorganizations.
D. GPU
GPU is the vehicle registration code used on license plates for cars registered in Poland’s Pomeranian Voivodeship.
E. PlaidML
PlaidML is an open-source, hardware-agnostic deep learning engine designed to accelerate neural network computation on a wide range of GPUs and other devices.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: NCCL
Target entity description: NCCL (NVIDIA Collective Communications Library) is a high-performance library that optimizes multi-GPU and multi-node communication for deep learning and HPC applications.

A. NVIDIA CUDA
NVIDIA CUDA is a parallel computing platform and programming model that enables developers to use NVIDIA GPUs for general-purpose high-performance computing.
B. NVIDIA AI Enterprise software suite
NVIDIA AI Enterprise software suite is a comprehensive, enterprise-grade collection of AI tools, frameworks, and optimized software designed to accelerate the development and deployment of AI and data analytics workloads across modern data centers and clouds.
C. GPU
The GPU (State Political Directorate) was the Soviet Union’s early secret police and intelligence agency that operated in the 1920s, overseeing political repression and internal security before later reorganizations.
D. GPU
GPU is the vehicle registration code used on license plates for cars registered in Poland’s Pomeranian Voivodeship.
E. PlaidML
PlaidML is an open-source, hardware-agnostic deep learning engine designed to accelerate neural network computation on a wide range of GPUs and other devices.
F. None of above. chosen

Statements (66)

Predicate	Object
instanceOf	GPU communication library ⓘ collective communications library ⓘ communication library ⓘ parallel computing library ⓘ
developer	NVIDIA Corporation ⓘ surface form: NVIDIA
domain	deep learning ⓘ distributed training ⓘ high-performance computing ⓘ multi-GPU computing ⓘ multi-node computing ⓘ
feature	GPUDirect RDMA support ⓘ asynchronous communication API ⓘ grouped collective operations ⓘ hierarchical collectives ⓘ multi-process communication support ⓘ ring-based collectives ⓘ topology-aware communication algorithms ⓘ tree-based collectives ⓘ
fullName	NCCL self-linksurface differs ⓘ surface form: NVIDIA Collective Communications Library
goal	high-bandwidth GPU communication ⓘ low-latency collective operations ⓘ scalable multi-GPU training ⓘ
integratesWith	NVIDIA CUDA ⓘ surface form: CUDA
license	BSD-style license ⓘ
optimizedFor	GPU interconnects ⓘ Nvidia Maxwell GPU ⓘ surface form: NVIDIA GPUs
primaryAPIStyle	C API ⓘ
programmingLanguage	C ⓘ
provider	NVIDIA Corporation ⓘ surface form: NVIDIA
requires	CUDA-enabled GPU ⓘ
supportsDataType	bfloat16 ⓘ float16 ⓘ float32 ⓘ float64 ⓘ int32 ⓘ int64 ⓘ uint8 ⓘ
supportsEnvironment	cloud GPU clusters ⓘ on-premise clusters ⓘ
supportsHardware	Ethernet ⓘ InfiniBand ⓘ NVLink interconnect ⓘ surface form: NVLink NVLink interconnect ⓘ surface form: NVSwitch PCI Express ⓘ surface form: PCIe
supportsLanguageBinding	C++ ⓘ Python ⓘ
supportsOperation	all-gather ⓘ all-reduce ⓘ broadcast ⓘ gather ⓘ reduce ⓘ reduce-scatter ⓘ scatter ⓘ
supportsReductionOp	max ⓘ min ⓘ product ⓘ sum ⓘ
supportsTopology	multi-node multi-GPU ⓘ single-node multi-GPU ⓘ
targetUser	HPC developers ⓘ deep learning framework developers ⓘ
usedBy	DeepSpeed ⓘ Horovod ⓘ Megatron-LM ⓘ PyTorch ⓘ surface form: PyTorch distributed TensorFlow distributed training ⓘ

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

NVIDIA CUDA → includes → NCCL ⓘ

NVIDIA Tesla data center GPUs → supportsEcosystem → NCCL ⓘ

this entity surface form: NVIDIA NCCL

NCCL → fullName → NCCL self-linksurface differs ⓘ

this entity surface form: NVIDIA Collective Communications Library

Compute Unified Device Architecture → includesLibrary → NCCL ⓘ

subject surface form: CUDA

All labels observed (3)

How this entity was disambiguated Show

Statements (66)

How these facts were elicited Show

Referenced by (4)

How this entity was disambiguated

How these facts were elicited