HeavyCompute

A simple benchmark program to compare CPU and GPU performance on intensive computation workloads using HIP.

This program performs a repeated arithmetic operation on a large array of integers.
It provides a direct comparison between CPU execution and GPU kernel execution.

File Structure

.
├── HeavyCompute.cpp  # Main program source code
├── Makefile          # Build configuration
└── README.md         # Documentation

Build

Make sure you have ROCm and HIP environment properly installed.

make

This will generate the executable:

HeavyCompute

Run

Execute the program:

./HeavyCompute

Output example:

GPU kernel execution time: 16.637 ms
CPU execution time: 2241.86 ms
Output comparison: PASSED

Parameters

The following parameters are defined inside HeavyCompute.cpp and can be modified for different workloads:

Variable	Description	Default Value
N	Number of elements	10,000,000
iterations	Number of computations per element	100

Purpose

This project is intended for:

• Performance benchmarking of CPU vs GPU
• HIP programming practice
• Testing hardware compute capability under heavy arithmetic workloads

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Environment

Tested on:

• ROCm version: 6.3.3
• HIP runtime
• Linux x86_64

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License

MIT License