From d62691339b1b0030aa589335939ecb7b89d63182 Mon Sep 17 00:00:00 2001
From: Rohit Zambre <rzambre@uci.edu>
Date: Tue, 25 Aug 2020 18:15:43 -0700
Subject: [PATCH] update README to include variables for MPI

Setting USE_MPI=1 alone does not configure Legion to use the MPI
backend. It must be coupled with REALM_NETWORKS=mpi.
---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index cd453809e4..24c019c22e 100644
--- a/README.md
+++ b/README.md
@@ -154,6 +154,7 @@ make`) or at the top of each application's Makefile.
     level](http://legion.stanford.edu/debugging/#logging-infrastructure).
   * `USE_CUDA=<0,1>`: enables CUDA support.
   * `USE_GASNET=<0,1>`: enables GASNet support (see [installation instructions](http://legion.stanford.edu/gasnet/)).
+  * `USE_MPI=<0,1> REALM_NETWORKS=mpi`: enables MPI support.
   * `USE_LLVM=<0,1>`: enables LLVM support.
   * `USE_HDF=<0,1>`: enables HDF5 support.