From 9f9b5c5b2b89deb759f1fb8910e372350edc898d Mon Sep 17 00:00:00 2001
From: Ji Qiang <38738257+qianglbl@users.noreply.github.com>
Date: Sun, 16 Jun 2024 11:41:40 -0700
Subject: [PATCH] Update Readme.md

---
 Readme.md | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Readme.md b/Readme.md
index 5dc06c2..3ab4496 100644
--- a/Readme.md
+++ b/Readme.md
@@ -11,8 +11,6 @@ brightness electron linac, beam dynamics in SNS linac, JARPC linac, RIA driver
 linac, CERN superconducting linac, LEDA halo experiment, Proton Synchrotron at 
 CERN, etc.
 
-To compile the ImpactZ code, one can follow the same procedure as described in 
-the Impact-T github Readme file.
 
 The ImpactZexeMac, ImpactZexeUbuntu, and ImpactZexeWin.exe are old executables.
 
@@ -38,3 +36,10 @@ cmake --build build
 cmake --build build --target install
 ```
 
+### Multi Processor Code:
+
+```shell script
+# inside the IMPACT-T src/ directory:
+cmake -S . -B build -DUSE_MPI=ON
+cmake --build build
+cmake --build build --target install