Update README

.codespell-ignore-words

@@ -0,0 +1 @@
+amrexpr

README.md

@@ -1,4 +1,4 @@
-# AMReX's Mathematical Expression Parser
+# amrexpr: AMReX's Mathematical Expression Parser
 
 ## Overview
 
@@ -8,7 +8,7 @@ is designed for high-performance computing applications that solve partial
 differential equations on block-structured adaptive meshes. This library is
 for users who wish to utilize the parser functionality without incorporating
 the full AMReX framework. It supports both CPU and GPU architectures,
-including Nvidia, AMD, and Intel GPUs.
+including Nvidia, AMD, and Intel GPUs. It requires C++17 or later.
 
 ## Features
 
@@ -65,6 +65,28 @@ Note that an assignment to an automatic variable must be terminated with
 the constants set by `setConstant` and the variables registered by
 `registerVariables`.
 
+## Installation
+
+There two ways to install amrexpr.
+
+### Option 1: Using GNU Make
+
+In the `amrexpr` root directory, follow these steps:
+
+```console
+$ ./configure
+$ make -j8
+$ make install
+```
+
+To see the list of options, run `./configure -h`. These options allow you to
+configure installation directory, choose the compiler, specify GPU backends,
+and more.
+
+### Option 2: Using CMake
+
+CMake support is still under development.
+
 ## Copyright Notice
 
 AMReX Copyright (c) 2024, The Regents of the University of California,

Tools/libamrexpr/configure.py

@@ -44,7 +44,7 @@ def configure(argv):
     parser.add_argument("--cuda-arch",
                         help="Specify CUDA architecture. Required when CUDA is enabled.")
     parser.add_argument("--amd-arch",
-                        help="Specify AMD GPU architecture. Requried when HIP is enabled.")
+                        help="Specify AMD GPU architecture. Required when HIP is enabled.")
     parser.add_argument("--intel-arch",
                         help="Specify Intel GPU architecture. Optional.")
     args = parser.parse_args()