diff --git a/ompi/mca/common/portals/common_portals_cray_xt_modex.c b/ompi/mca/common/portals/common_portals_cray_xt_modex.c
new file mode 100644
index 0000000000..6a02333700
--- /dev/null
+++ b/ompi/mca/common/portals/common_portals_cray_xt_modex.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
+ *                         University Research and Technology
+ *                         Corporation.  All rights reserved.
+ * Copyright (c) 2004-2005 The University of Tennessee and The University
+ *                         of Tennessee Research Foundation.  All rights
+ *                         reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2006 The Regents of the University of California.
+ *                         All rights reserved.
+ * Copyright (c) 2008      UT-Battelle, LLC. All rights reserved.
+ * $COPYRIGHT$
+ *
+ * Additional copyrights may follow
+ *
+ * $HEADER$
+ */
+
+
+#include "ompi_config.h"
+#include "common_portals.h"
+#include "ompi/constants.h"
+#include "opal/mca/base/base.h"
+#include "opal/util/output.h"
+#include "ompi/runtime/ompi_module_exchange.h"
+
+
+static mca_base_component_t portals_component = {
+    MCA_BASE_VERSION_1_0_0,
+    "common",
+    MCA_BASE_VERSION_1_0_0,
+    "portals",
+    MCA_BASE_VERSION_1_0_0,
+    NULL,
+    NULL
+};
+
+char *
+ompi_common_portals_nodeid(void)
+{
+    char *ret;
+    asprintf(&ret, "CNL:");
+    return ret;
+}
+
+
+int
+ompi_common_portals_register_mca(void)
+{
+    return OMPI_SUCCESS;
+}
+
+
+int
+ompi_common_portals_initialize(ptl_handle_ni_t *ni_handle, bool *accel)
+{
+    int ret, max_interfaces;
+    ptl_process_id_t ptl_process_id;
+    ptl_interface_t ni_iface = PTL_IFACE_DEFAULT;
+    *accel = false;
+    
+    /*
+     * If we use the YOD launcher we can use the default interface
+     * otherwise we need to use the SeaStar Bridged interface (for CNL/APRUN)
+     */
+    ni_iface = IFACE_FROM_BRIDGE_AND_NALID(PTL_BRIDGE_UK,PTL_IFACE_SS);
+
+    /*
+     * Initialize Portals interface
+     */
+    ret = PtlInit(&max_interfaces);
+    if (PTL_OK != ret) {
+        opal_output(0, "PtlInit failed, returning %d\n", ret);
+        return OMPI_ERR_NOT_AVAILABLE;
+    }
+    
+    /*
+     * Initialize a network device
+     */
+    ret = PtlNIInit(ni_iface,          /* interface to initialize */
+                    PTL_PID_ANY,       /* let library assign our pid */
+                    NULL,              /* no desired limits */
+                    NULL,              /* actual limits */
+                    ni_handle          /* our interface handle */
+                    );
+    if (PTL_OK != ret && PTL_IFACE_DUP != ret) {
+        opal_output(0, "PtlNIInit failed, returning %d (%s : %d)\n",
+                    ret, __FILE__, __LINE__);
+        return OMPI_ERROR;
+    }
+    
+    ret = PtlGetId(*ni_handle ,&ptl_process_id);
+    if(PTL_OK != ret) { 
+        opal_output(0, "PtlGetId failed, returning %d\n", ret);
+        return OMPI_ERROR;
+    }
+   
+    /* publish my nid/pid info */
+    ret = ompi_modex_send(&portals_component,
+                          &ptl_process_id, sizeof(ptl_process_id_t));
+    
+    if (OMPI_SUCCESS != ret) {
+        return ret;
+    }
+
+    return OMPI_SUCCESS;
+    
+}
+
+
+int
+ompi_common_portals_ni_initialize(ptl_handle_ni_t *ni_handle, bool *accel)
+{
+    return OMPI_SUCCESS;
+}
+
+
+int
+ompi_common_portals_get_procs(size_t nprocs,
+                              struct ompi_proc_t **procs,
+                              ptl_process_id_t *portals_procs)
+{
+    size_t i, size;
+    int ret;
+    ptl_process_id_t *ptl_process_id;
+    
+    for (i = 0 ; i < nprocs ; ++i) {
+        ret = ompi_modex_recv(&portals_component,
+                              procs[i], (void**) &ptl_process_id, &size);
+        if (OMPI_SUCCESS != ret) {
+            opal_output(0, "ompi_modex_recv failed: %d", ret);
+            return ret;
+        } else if (sizeof(ptl_process_id_t) != size) {
+            opal_output(0, "ompi_modex_recv returned size %d, expected %d", 
+                        (int) size, (int) sizeof(ptl_process_id_t));
+            return OMPI_ERROR;
+        }
+        
+        portals_procs[i] = *ptl_process_id;
+    }
+    
+    return OMPI_SUCCESS;
+}
+
+
+int
+ompi_common_portals_ni_finalize(void)
+{
+    return OMPI_SUCCESS;
+}
+
+
+int
+ompi_common_portals_finalize(void)
+{
+    return OMPI_SUCCESS;
+}