diff --git a/pkgs/development/libraries/libfabric/default.nix b/pkgs/development/libraries/libfabric/default.nix
index baa33a51eef9..35ad72f8c7e9 100644
--- a/pkgs/development/libraries/libfabric/default.nix
+++ b/pkgs/development/libraries/libfabric/default.nix
@@ -1,9 +1,18 @@
-{ lib, stdenv, fetchFromGitHub, pkg-config, autoreconfHook, libpsm2
-, enablePsm2 ? (stdenv.isx86_64 && stdenv.isLinux) }:
+{ lib
+, stdenv
+, fetchFromGitHub
+, pkg-config
+, autoreconfHook
+, enablePsm2 ? (stdenv.isx86_64 && stdenv.isLinux)
+, libpsm2
+, enableOpx ? (stdenv.isx86_64 && stdenv.isLinux)
+, libuuid
+, numactl
+}:
 
 stdenv.mkDerivation rec {
   pname = "libfabric";
-  version = "1.15.1";
+  version = "1.17.0";
 
   enableParallelBuilding = true;
 
@@ -11,14 +20,17 @@ stdenv.mkDerivation rec {
     owner = "ofiwg";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-uL3L9k9yqdZXQmR1zi8OEIGLAZ8cf7EBnlDhetaMA08=";
+    sha256 = "sha256-tXfAn8hkasA2UuA4/8dOE3EcORyJo/A33TtSNdzDXD8=";
   };
 
   nativeBuildInputs = [ pkg-config autoreconfHook ];
 
-  buildInputs = lib.optional enablePsm2 libpsm2;
+  buildInputs = lib.optionals enableOpx [ libuuid numactl ] ++ lib.optional enablePsm2 [ libpsm2 ];
 
-  configureFlags = [ (if enablePsm2 then "--enable-psm2=${libpsm2}" else "--disable-psm2") ];
+  configureFlags = [
+    (if enablePsm2 then "--enable-psm2=${libpsm2}" else "--disable-psm2")
+    (if enableOpx then "--enable-opx" else "--disable-opx")
+  ];
 
   meta = with lib; {
     homepage = "https://ofiwg.github.io/libfabric/";
diff --git a/pkgs/development/libraries/openmpi/default.nix b/pkgs/development/libraries/openmpi/default.nix
index 51194a36798f..1a9a5deb0d9a 100644
--- a/pkgs/development/libraries/openmpi/default.nix
+++ b/pkgs/development/libraries/openmpi/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, gfortran, perl, libnl
+{ lib, stdenv, fetchurl, fetchpatch, gfortran, perl, libnl
 , rdma-core, zlib, numactl, libevent, hwloc, targetPackages, symlinkJoin
 , libpsm2, libfabric, pmix, ucx
 
@@ -32,6 +32,14 @@ in stdenv.mkDerivation rec {
     sha256 = "03ckngrff1cl0l81vfvrfhp99rbgk7s0633kr1l468yibwbjx4cj";
   };
 
+  patches = [
+    (fetchpatch {
+      name = "RDMA-osc-perform-CAS-in-shared-memory-if-possible.patch";
+      url = "https://github.com/open-mpi/ompi/pull/10513/commits/0512c135a77a0278e5288e0e119dce24c95ebed4.patch";
+      sha256 = "sha256-K1Gc+hBUkTPY1WqLP6JWo623EUhkoL4ONrqPVDNfFuE=";
+    })
+  ];
+
   postPatch = ''
     patchShebangs ./