From 314da5a4850b5a23ba9d868926ec6e8637583672 Mon Sep 17 00:00:00 2001
From: Wenkai Du <43822138+wenkaidu@users.noreply.github.com>
Date: Tue, 12 Jul 2022 11:32:07 -0700
Subject: [PATCH] README.md: add CMAKE_PREFIX_PATH to build steps (#581)

---
 README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index e0026476a9..5abf1a50f3 100644
--- a/README.md
+++ b/README.md
@@ -39,12 +39,12 @@ $ git clone https://github.com/ROCmSoftwarePlatform/rccl.git
 $ cd rccl
 $ mkdir build
 $ cd build
-$ CXX=/opt/rocm/bin/hipcc cmake ..
-$ make -j 8
+$ CXX=/opt/rocm/bin/hipcc cmake -DCMAKE_PREFIX_PATH=/opt/rocm/ ..
+$ make -j
 ```
 You may substitute an installation path of your own choosing by passing CMAKE_INSTALL_PREFIX. For example:
 ```shell
-$ CXX=/opt/rocm/bin/hipcc cmake -DCMAKE_INSTALL_PREFIX=$PWD/rccl-install ..
+$ CXX=/opt/rocm/bin/hipcc cmake -DCMAKE_PREFIX_PATH=/opt/rocm/ -DCMAKE_INSTALL_PREFIX=$PWD/rccl-install ..
 ```
 Note: ensure rocm-cmake is installed, `apt install rocm-cmake`.