From d1a3b52f17b914c93bf740654387b566a7330687 Mon Sep 17 00:00:00 2001
From: Tri Dao <tridpq@gmail.com>
Date: Mon, 17 Jul 2023 23:17:47 -0700
Subject: [PATCH] Add instruction about limiting number of ninja jobs

---
 README.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/README.md b/README.md
index e4151a6..536dbe7 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,14 @@ Alternatively you can compile from source:
 python setup.py install
 ```
 
+If your machine has less than 96GB of RAM and lots of CPU cores, `ninja` might
+run too many parallel compilation jobs that could exhaust the amount of RAM. To
+limit the number of parallel compilation jobs, you can set the environment
+variable `MAX_JOBS`:
+```
+MAX_JOBS=4 pip install flash-attn --no-build-isolation
+```
+
 Interface: `src/flash_attention_interface.py`
 
 FlashAttention-2 currently supports: