diff --git a/Compiler/openmpi/build b/Compiler/openmpi/build
index 0206f3ab..91460d75 100755
--- a/Compiler/openmpi/build
+++ b/Compiler/openmpi/build
@@ -105,6 +105,7 @@ pbuild::pre_configure() {
 
         if pbuild::use_flag slurm || \
 		pbuild::use_flag dgx || \
+		pbuild::use_flag ra || \
 		pbuild::use_flag merlin6 || \
 		pbuild::use_flag merlin7; then
 	    std::info "Enabling SLURM."
diff --git a/Compiler/openmpi/files/config.yaml b/Compiler/openmpi/files/config.yaml
index 158f0f6b..7690cfb4 100644
--- a/Compiler/openmpi/files/config.yaml
+++ b/Compiler/openmpi/files/config.yaml
@@ -86,17 +86,43 @@ openmpi:
             - --with-lustre
             - --with-xpmem
           use_flags: [merlin7, slurm]
+          # - systems: [ra-.*]
+          #   relstage: unstable
+          #   suffix: _ra
+          #   use_flags: [ra, gpfs]
+          #   group_deps:
+          #     compiler: {gcc: [12.3.0]}
+          #   build_requires: [pmix/4.2.4, ucx/1.14.1_slurm, hwloc/2.9.1, patchelf/0.14.5]
+          #   runtime_deps: [cuda/12.1.1]
+          #   configure_args+:
+          #     - --with-gpfs=/usr/lpp/mmfs
+          #     - --enable-static
+          # TEST MCAUBET
         - systems: [ra-.*]
-          relstage: unstable
           suffix: _ra
           use_flags: [ra, gpfs]
+          relstage: unstable
+          overlay: base
           group_deps:
             compiler: {gcc: [12.3.0]}
-          build_requires: [pmix/4.2.4, ucx/1.14.1_slurm, hwloc/2.9.1, patchelf/0.14.5]
-          runtime_deps: [cuda/12.1.1]
+          build_requires:
+            - hwloc/2.13.0    # ok
+            - libevent/2.1.12 # ok
+            - patchelf/0.14.5 # ok
+            - pmix/5.0.10     # ok
+            - prrte/3.0.13    # ok
+            - ucx/1.20.0      # ok
+            - xpmem/2.6.5     # ok
+          runtime_deps:
+            - cuda/13.2.1
+            - prrte/3.0.13
           configure_args+:
+            - CFLAGS=-g -O0
+            - LDFLAGS=-g
             - --with-gpfs=/usr/lpp/mmfs
             - --enable-static
+            - --without-ofi
+            - --without-hcoll
         - systems: [merlin-.*]
           suffix: _slurm
           use_flags: [merlin6, gpfs]
diff --git a/Libraries/GDRCopy/build b/Libraries/GDRCopy/build
index 36800064..fa383dd8 100755
--- a/Libraries/GDRCopy/build
+++ b/Libraries/GDRCopy/build
@@ -5,5 +5,5 @@ pbuild::compile() {
 }
 
 pbuild::install() {
-  ./insmod.sh
+  :
 }
diff --git a/Libraries/GDRCopy/files/config.yaml b/Libraries/GDRCopy/files/config.yaml
index 368787da..a84a2b90 100644
--- a/Libraries/GDRCopy/files/config.yaml
+++ b/Libraries/GDRCopy/files/config.yaml
@@ -31,6 +31,9 @@ GDRCopy:
         - systems: [merlin-.*.psi.ch]
           use_flags: [merlin6]
           build_requires: [cuda/13.2.1]
+        - systems: [ra-.*.psi.ch]
+          use_flags: [ra]
+          build_requires: [cuda/13.2.1]
     2.5:
       config:
         relstage: stable
diff --git a/Libraries/pmix/files/config.yaml b/Libraries/pmix/files/config.yaml
index 38a88d01..928f1c99 100644
--- a/Libraries/pmix/files/config.yaml
+++ b/Libraries/pmix/files/config.yaml
@@ -145,4 +145,10 @@ pmix:
           configure_args+:
             - --with-zlib
           build_requires: [gcc/15.2.0, hwloc/2.13.0]
+        - systems: [ra-.*]
+          relstage: unstable
+          overlay: base
+          configure_args+:
+            - --with-zlib
+          build_requires: [gcc/12.3.0, hwloc/2.13.0]
         - systems: [rhel.*]
diff --git a/Libraries/prrte/files/config.yaml b/Libraries/prrte/files/config.yaml
index a32db228..83f8c3b7 100644
--- a/Libraries/prrte/files/config.yaml
+++ b/Libraries/prrte/files/config.yaml
@@ -34,3 +34,7 @@ prrte:
         - systems: [merlin-.*]
           relstage: unstable
           overlay: base
+        - systems: [ra-.*]
+          relstage: unstable
+          group_deps:
+            compiler: {gcc: [12.3.0]}
diff --git a/Libraries/ucx/files/config.yaml b/Libraries/ucx/files/config.yaml
index 506b02e7..43b852a3 100644
--- a/Libraries/ucx/files/config.yaml
+++ b/Libraries/ucx/files/config.yaml
@@ -46,6 +46,21 @@ ucx:
             - --with-verbs
             - --with-xpmem
           use_flags: [merlin6, slurm]
+        - systems: [ra-.*.psi.ch]
+          relstage: unstable
+          build_requires:
+            - cuda/13.2.1
+            - GDRCopy/2.5.2
+            - hwloc/2.13.0
+            - knem/1.1.4
+            - patchelf/0.14.5
+            - xpmem/2.6.5
+          configure_args+:
+            - --with-rdmacm
+            - --with-mlx5
+            - --with-verbs
+            - --with-xpmem
+          use_flags: [ra, slurm]
     1.19.0:
       variants:
         # Unstable
diff --git a/Libraries/xpmem/files/config.yaml b/Libraries/xpmem/files/config.yaml
index d7457a79..09a979ad 100644
--- a/Libraries/xpmem/files/config.yaml
+++ b/Libraries/xpmem/files/config.yaml
@@ -36,3 +36,6 @@ xpmem:
         - systems: [merlin-.*]
           relstage: unstable
           overlay: base
+        - systems: [ra-.*]
+          relstage: unstable
+          overlay: base