Compute Nodes for HPC Clusters: Specifications and Selection

Product Specifications

Technical details and manufacturing context for Compute Nodes

Definition

Compute nodes are the fundamental processing units in high-performance computing (HPC) systems, consisting of one or more processors (CPUs, GPUs, or accelerators), memory, and network interfaces. They work collectively within a cluster to perform parallel processing of complex computational workloads, such as scientific simulations, data analytics, and artificial intelligence training. In a typical HPC cluster, compute nodes are connected via a high-speed interconnect, such as InfiniBand or Ethernet, and are managed by a central scheduler or head node that distributes tasks. Each node operates independently, executing instructions using its processors, accessing data from local memory or shared storage, and communicating results or intermediate data with other nodes to collaboratively solve large-scale problems through parallel processing frameworks like MPI. The configuration of compute nodes varies based on the intended workload: dual-socket nodes offer a balance of density and performance, while quad-socket nodes maximize compute per node. Memory capacity typically ranges from 512 to 2048 GB, supporting in-memory databases and memory-intensive HPC applications. Storage is provided via NVMe SSDs, with capacities from 960 to 7680 GB, enabling high I/O throughput and local data staging. Network bandwidth ranges from 100 to 400 Gbps, with higher speeds preferred for low-latency MPI communication. Power consumption varies from 500 to 2000 W, affecting cooling and power distribution unit (PDU) capacity. Operating temperature and relative humidity ranges follow ASHRAE A3 guidelines (10–35°C and 8–80% non-condensing), outside which thermal throttling or corrosion risks may occur. Ingress protection ratings range from IP20 for data center use to IP54 for industrial edge environments. Chassis heights vary from 1U for density to 4U for adequate GPU cooling, and weights range from 15 to 40 kg, impacting rack loading and shipping. These specifications are typical ranges; actual values must be verified with the manufacturer for specific models and applications.

Working Principle

Compute nodes receive computational tasks from a central scheduler or head node via an interconnect network. They execute instructions using their processors, access data from local memory or shared storage, and communicate results or intermediate data with other nodes to collaboratively solve large-scale problems through parallel processing frameworks. The scheduler assigns tasks to nodes based on availability and resource requirements. Each node runs its own operating system and applications, and uses message passing or other parallel programming models to coordinate with other nodes. The interconnect network provides low-latency, high-bandwidth communication, enabling efficient data exchange. Nodes may also access shared storage for input/output operations. The overall system performance depends on the number of nodes, their individual capabilities, and the efficiency of the interconnect and software stack.

Common Materials

Semiconductor materials (silicon), Printed circuit boards, Thermal interface materials, Metal alloys (for heatsinks and chassis)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Processor Count	2–4 sockets	Dual-socket for density, quad-socket for maximum compute per node.
Memory Capacity	512–2048 GB	Higher capacity for in-memory databases and HPC workloads.
Storage Capacity	960–7680 GB	NVMe SSDs for high I/O; larger capacity for local data staging.
Network Bandwidth	100–400 Gbps	InfiniBand or Ethernet; higher for low-latency MPI.
Power Consumption	500–2000 W	Affects cooling and PDU capacity.
Operating Temperature	10–35 °C	Outside range may cause thermal throttling.ASHRAE A3
Relative Humidity	8–80 %	Non-condensing; high humidity risks corrosion.ASHRAE A3
Ingress Protection	IP20–IP54	IP20 for data center, IP54 for industrial edge.IEC 60529
Chassis Height	1–4 U	1U for density, 4U for GPU cooling.
Weight	15–40 kg	Affects rack loading and shipping.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Processor(s)
Executes computational instructions and performs arithmetic/logical operations

Material: Semiconductor (silicon with metal interconnects)
Memory Modules
Provides temporary storage for data and instructions during processing

Material: Semiconductor memory chips on PCB substrates
Network Interface Card
Enables high-speed communication with other nodes and storage systems

Material: Semiconductor chips, PCB, copper/optical connectors
Power Supply Unit
Converts and regulates electrical power for internal components

Material: Electronic components, transformers, capacitors, metal casing
Cooling System
Dissipates heat generated by processors and other components

Material: Aluminum/copper heatsinks, fans, thermal paste

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Compute Nodes.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

High-Performance Computing Systems

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Manufacturers of Compute Nodes

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Frequently Asked Questions

What is the typical processor count for a compute node?

Compute nodes typically have 2 to 4 processor sockets. Dual-socket configurations are common for density and cost efficiency, while quad-socket nodes provide maximum compute per node for workloads that require high core counts or memory bandwidth. The exact number depends on the application and the node's intended role in the cluster.

How much memory and storage does a compute node usually have?

Memory capacity ranges from 512 to 2048 GB, suitable for in-memory databases and memory-intensive HPC workloads. Storage is typically provided by NVMe SSDs with capacities from 960 to 7680 GB, offering high I/O throughput for local data staging and temporary data. These ranges are general; actual capacities vary by model and configuration.

What network bandwidth is required for compute nodes?

Network bandwidth typically ranges from 100 to 400 Gbps, using InfiniBand or Ethernet. Higher bandwidth is preferred for low-latency MPI communication, which is critical for tightly coupled parallel applications. The choice depends on the cluster size and the communication patterns of the workloads.

What environmental conditions do compute nodes require?

Compute nodes operate within a temperature range of 10–35°C and relative humidity of 8–80% (non-condensing), per ASHRAE A3 guidelines. Exceeding these ranges may cause thermal throttling or corrosion. Ingress protection ratings range from IP20 for data center use to IP54 for industrial edge environments, indicating the level of protection against dust and water.

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Preliminary Technical Classification

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humidity:	8% to 90% non-condensing
pressure:	Atmospheric (non-pressurized environment)
temperature:	10°C to 35°C (operating), 0°C to 50°C (storage)
power consumption:	200W to 500W per node (typical range)

Compute Nodes

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

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