classads ☆

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Description:
Classified Advertisements (used by HTCondor Central Manager)

Type: Formula | Latest Version: 1.0.10@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: htcondor distributed-computing hpc resource-management classad

Install: brew install classads

About:
ClassAds is a flexible and expressive language for describing the attributes of resources in a distributed computing environment. It provides a structured data format and a powerful query language for matchmaking and policy enforcement. This library is a core component of HTCondor, enabling efficient resource allocation and classification.

Key Features:

Declarative language for describing resource attributes and requirements
Powerful expression evaluation for matchmaking and constraints
Flexible data model supporting real, integer, string, and list types
C++ library for integration into other applications

Use Cases:

Matchmaking compute jobs with appropriate resources in a cluster
Defining and evaluating complex scheduling policies in HTCondor
Classifying and querying heterogeneous distributed systems

Alternatives:

JSON – JSON is a generic data interchange format, whereas ClassAds include a built-in expression language for complex matching and evaluation logic.
YAML – YAML focuses on human-readable data serialization, lacking the specific query and policy evaluation capabilities of ClassAds.

License: Apache-2.0

Dependencies: pcre

Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, arm64_monterey, arm64_big_sur, sonoma, ventura, monterey, big_sur, catalina, arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit
Sep 11, 2024 12:55pm		0	VERSION_BUMP	e1c4b57f
Dec 3, 2022 8:05pm		0	VERSION_BUMP	1d34a0a1