---
title: "Flags and Targets"
summary: "Flags and Targets: a page of the HPC note."
date: 2026-09-11
author: hpcnotes
kind: note
parent: hpc-compilation
order: 2
tags: hpc
draft: false
---

-O3 is not a target. Name the CPU, the ISA, and the ABI you built for.