diff --git a/dgx.csv b/dgx.csv
index 6480dcade15f7a0ee22a5c8da2755269ccb0373b..fca6a4bd67ea13c2eb34d7aa8c54d83178074a26 100644
--- a/dgx.csv
+++ b/dgx.csv
@@ -113,6 +113,7 @@ PGI/19.10-GCC-6.3.0-2.27-CUDA,16
 pkg-config/0.29.2-GCCcore-9.3.0,16
 Singularity/3.8.0,16
 squashfs-tools/4.3,16
+UCX/1.9.0-NVHPC-21.2-CUDA-11.3.0,16
 Valgrind/3.15.0,16
 Valgrind/3.15.0-GCC-8.3.0-2.32,16
 Valgrind/3.15.0-intel-2017c,16
diff --git a/dgx.md b/dgx.md
index 4601ff7a6462372a7df29397486e50a8dad22446..1927a3b82609e3a4267408217b1d79e62e63d704 100644
--- a/dgx.md
+++ b/dgx.md
@@ -53,6 +53,7 @@
 | [libtool](http://www.gnu.org/software/libtool) | GNU libtool is a generic library support script. Libtool hides the complexity of using shared libraries behind a consistent, portable interface. |
 | [libunwind](http://www.nongnu.org/libunwind/) | The primary goal of libunwind is to define a portable and efficient C programming interface (API) to determine the call-chain of a program. The API additionally provides the means to manipulate the preserved (callee-saved) state of each call-frame and to resume execution at any point in the call-chain (non-local goto). The API supports both local (same-process) and remote (across-process) operation. As such, the API is useful in a number of applications |
 | [libxml2](http://xmlsoft.org/) | Libxml2 is the XML C parser and toolchain developed for the Gnome project (but usable outside of the Gnome platform). |
+| [UCX](http://www.openucx.org/) | Unified Communication X An open-source production grade communication framework for data centric and high-performance applications |
 | [zlib](http://www.zlib.net/) | zlib is designed to be a free, general-purpose, legally unencumbered -- that is, not covered by any patents -- lossless data-compression library for use on virtually any computer hardware and operating system. |
 
 ## Mpi