oclgrind ☆

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Description:
OpenCL device simulator and debugger

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: opencl debugger simulator gpu compute developer-tools

Install: brew install oclgrind

About:
Oclgrind is a virtual OpenCL implementation that simulates device behavior in software. It provides a deterministic debugging environment to detect memory errors, race conditions, and undefined behavior in OpenCL C kernels. This allows developers to validate and debug their GPU compute code without needing physical hardware.

Key Features:

Software-based OpenCL 1.2/2.0 simulator
Memory error detection (out-of-bounds, uninitialized access)
Data race detection and undefined behavior analysis
Deterministic execution for reproducible debugging

Use Cases:

Debugging OpenCL kernels without access to physical GPU hardware
CI/CD pipeline testing for GPU-accelerated applications
Educational tool for learning OpenCL programming concepts

Alternatives:

Intel OpenCL Simulator – Intel's simulator is hardware-tied, while Oclgrind is platform-agnostic and focuses on debugging
Valgrind – Valgrind debugs CPU code; Oclgrind specifically targets OpenCL kernel execution

Version History

Detected	Version	Rev	Change	Commit
Sep 21, 2025 5:45pm		2	VERSION_BUMP	0fb152c9
Oct 26, 2024 9:34pm		2	VERSION_BUMP	92d9b13a