From a13a9f6806520bdc458a6ac19b39deae860bf5f4 Mon Sep 17 00:00:00 2001
From: Christopher Owen <christopherowen@users.noreply.github.com>
Date: Thu, 18 Dec 2025 13:31:54 +0100
Subject: [PATCH] Limit build parallelism to reduce OOM situations

---
 Dockerfile | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Dockerfile b/Dockerfile
index 78bdd9d..2285d93 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,20 @@
 # syntax=docker/dockerfile:1.6
 
+# Limit build parallelism to reduce OOM situations
+ARG BUILD_JOBS=16
+
 # =========================================================
 # STAGE 1: Base Image (Installs Dependencies)
 # =========================================================
 FROM nvidia/cuda:13.1.0-devel-ubuntu24.04 AS base
 
+# Build parallemism
+ARG BUILD_JOBS
+ENV MAX_JOBS=${BUILD_JOBS}
+ENV CMAKE_BUILD_PARALLEL_LEVEL=${BUILD_JOBS}
+ENV NINJAFLAGS="-j${BUILD_JOBS}"
+ENV MAKEFLAGS="-j${BUILD_JOBS}"
+
 # Set non-interactive frontend to prevent apt prompts
 ENV DEBIAN_FRONTEND=noninteractive