diff --git a/src/mca/mpi/ptl/base/ptl_base_fragment.h b/src/mca/mpi/ptl/base/ptl_base_fragment.h
index 7df3841294..8516d5ed91 100644
--- a/src/mca/mpi/ptl/base/ptl_base_fragment.h
+++ b/src/mca/mpi/ptl/base/ptl_base_fragment.h
@@ -17,6 +17,9 @@ struct mca_ptl_base_frag_t {
     lam_list_item_t super;
     mca_ptl_base_header_t frag_header;
     struct mca_ptl_t* frag_owner; /**< PTL that allocated this fragment */
+    struct mca_ptl_peer_t* frag_peer; /**< PTL specific addressing info */
+    void  *frag_addr; /* pointer into request buffer at fragment offset */
+    size_t frag_size; /* number of bytes available in request buffer */
 };
 typedef struct mca_ptl_base_frag_t mca_ptl_base_frag_t;
 
diff --git a/src/mca/mpi/ptl/base/ptl_base_match.c b/src/mca/mpi/ptl/base/ptl_base_match.c
index 0660a5360e..48ddb7edd9 100644
--- a/src/mca/mpi/ptl/base/ptl_base_match.c
+++ b/src/mca/mpi/ptl/base/ptl_base_match.c
@@ -22,7 +22,7 @@
  * Specialized matching routines for internal use only.
  */
 
-static mca_ptl_base_recv_request_t *mca_ptl_base_check_recieves_for_match(
+static mca_ptl_base_recv_request_t *mca_ptl_base_check_receives_for_match(
     mca_ptl_base_header_t *frag_header,
     mca_pml_comm_t *ptl_comm);
                                                                                                                             
@@ -121,7 +121,7 @@ int mca_ptl_base_match(mca_ptl_base_header_t *frag_header,
         (pml_comm->c_next_msg_seq[frag_src])++;
 
         /* see if receive has already been posted */
-        matched_receive = mca_ptl_base_check_recieves_for_match(frag_header,
+        matched_receive = mca_ptl_base_check_receives_for_match(frag_header,
                 pml_comm);
 
         /* if match found, process data */
@@ -131,7 +131,7 @@ int mca_ptl_base_match(mca_ptl_base_header_t *frag_header,
             *match_made=true;
             /* associate the receive descriptor with the fragment
              * descriptor */
-            frag_desc->frag_match=matched_receive;
+            frag_desc->frag_request=matched_receive;
 
             /*
              * update deliverd sequence number information,
@@ -203,7 +203,7 @@ int mca_ptl_base_match(mca_ptl_base_header_t *frag_header,
  * This routine assumes that the appropriate matching locks are
  * set by the upper level routine.
  */
-static mca_ptl_base_recv_request_t *mca_ptl_base_check_recieves_for_match
+static mca_ptl_base_recv_request_t *mca_ptl_base_check_receives_for_match
   (mca_ptl_base_header_t *frag_header, mca_pml_comm_t *pml_comm)
 {
     /* local parameters */
@@ -215,7 +215,7 @@ static mca_ptl_base_recv_request_t *mca_ptl_base_check_recieves_for_match
 
     /*
      * figure out what sort of matching logic to use, if need to
-     *   look only at "specific" recieves, or "wild" receives,
+     *   look only at "specific" receives, or "wild" receives,
      *   or if we need to traverse both sets at the same time.
      */
     frag_src = frag_header->hdr_frag_seq;
@@ -329,7 +329,7 @@ static mca_ptl_base_recv_request_t *mca_ptl_base_check_wild_receives_for_match(
  * This routine assumes that the appropriate matching locks are
  * set by the upper level routine.
  */
-static mca_ptl_base_recv_request_t *mca_ptl_base_check_c_specific_receives_for_match(
+static mca_ptl_base_recv_request_t *mca_ptl_base_check_specific_receives_for_match(
         mca_ptl_base_header_t *frag_header,
         mca_pml_comm_t *pml_comm)
 {
@@ -454,7 +454,7 @@ static mca_ptl_base_recv_request_t *mca_ptl_base_check_specific_and_wild_receive
             if (wild_recv == (mca_ptl_base_recv_request_t *)
                     lam_list_get_end(&(pml_comm->c_wild_receives)) ) 
             { 
-                return_match = mca_ptl_base_check_c_specific_receives_for_match(frag_header,
+                return_match = mca_ptl_base_check_specific_receives_for_match(frag_header,
                         pml_comm);
 
                 return return_match;
@@ -514,8 +514,7 @@ static mca_ptl_base_recv_request_t *mca_ptl_base_check_specific_and_wild_receive
     }
 }
 
-#if (0)
-            /* need to handle this -- lam_check_cantmatch_for_match();
+            /* need to handle this -- mca_ptl_base_check_cantmatch_for_match();
              */
 /**
  * Scan the list of frags that came in ahead of time to see if any
@@ -537,9 +536,9 @@ static void mca_ptl_base_check_cantmatch_for_match(lam_list_t *additional_matche
 {
     /* local parameters */
     int match_found;
-    mca_pml_base_sequence_t next_msg_seq_expected, frag_seqber;
-    mca_pml_base_recv_frag_t *frag_desc;
-    mca_pml_base_recv_request_t *matched_receive;
+    mca_ptl_base_sequence_t next_msg_seq_expected, frag_seqber;
+    mca_ptl_base_recv_frag_t *frag_desc;
+    mca_ptl_base_recv_request_t *matched_receive;
 
     /*
      * Initialize list size - assume that most of the time this search
@@ -565,12 +564,12 @@ static void mca_ptl_base_check_cantmatch_for_match(lam_list_t *additional_matche
         /* search the list for a fragment from the send with sequence
          * number next_msg_seq_expected
          */
-        for(frag_desc = (mca_pml_base_recv_frag_t *) 
+        for(frag_desc = (mca_ptl_base_recv_frag_t *) 
             lam_list_get_first((pml_comm->c_frags_cant_match)+frag_src);
-            frag_desc != (mca_pml_base_recv_frag_t *)
+            frag_desc != (mca_ptl_base_recv_frag_t *)
             lam_list_get_end((pml_comm->c_frags_cant_match)+frag_src);
-            frag_desc = (mca_pml_base_recv_frag_t *) 
-            ((lam_list_item_t *)c_frags_cant_match)->lam_list_next) 
+            frag_desc = (mca_ptl_base_recv_frag_t *) 
+            lam_list_get_next(frag_desc))
         {
             /*
              * If the message has the next expected seq from that proc...
@@ -603,15 +602,15 @@ static void mca_ptl_base_check_cantmatch_for_match(lam_list_t *additional_matche
                 /*
                  * check to see if this frag matches a posted message
                  */
-                matched_receive = mca_ptl_base_check_recieves_for_match(
-                        frag_desc, pml_comm);
+                matched_receive = mca_ptl_base_check_receives_for_match(
+                       &frag_desc->super.frag_header, pml_comm);
 
                 /* if match found, process data */
                 if (matched_receive) {
 
                     /* associate the receive descriptor with the fragment
                      * descriptor */
-                    frag_desc->frag_match=matched_receive;
+                    frag_desc->frag_request=matched_receive;
 
                     /* add this fragment descriptor to the list of
                      * descriptors to be processed later
@@ -643,4 +642,4 @@ static void mca_ptl_base_check_cantmatch_for_match(lam_list_t *additional_matche
 
     return;
 }
-#endif /* if (0) */
+
diff --git a/src/mca/mpi/ptl/base/ptl_base_recvfrag.c b/src/mca/mpi/ptl/base/ptl_base_recvfrag.c
index 43d6986f96..6bea3f620b 100644
--- a/src/mca/mpi/ptl/base/ptl_base_recvfrag.c
+++ b/src/mca/mpi/ptl/base/ptl_base_recvfrag.c
@@ -3,7 +3,10 @@
  */
 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
+#include "mca/mpi/ptl/ptl.h"
 #include "mca/mpi/ptl/base/ptl_base_recvfrag.h"
+#include "mca/mpi/ptl/base/ptl_base_match.h"
+
 
 lam_class_info_t mca_ptl_base_recv_frag_cls = { 
     "mca_ptl_base_recv_frag_t", 
@@ -23,3 +26,51 @@ void mca_ptl_base_recv_frag_destroy(mca_ptl_base_recv_frag_t* frag)
     SUPER_DESTROY(frag, &mca_ptl_base_frag_cls);
 }
 
+int mca_ptl_base_recv_frag_match(mca_ptl_base_recv_frag_t* frag, mca_ptl_base_header_t* header)
+{
+    lam_list_t matched_frags;
+    bool matched;
+    int rc = mca_ptl_base_match(header, frag, &matched, &matched_frags);
+    if(rc != LAM_SUCCESS)
+        return rc;
+
+    if(matched) {
+        do {
+            mca_ptl_base_recv_request_t* request = frag->frag_request;
+            mca_ptl_t* ptl = frag->super.frag_owner;
+
+            /* determine the offset and size of posted buffer */
+            if (request->super.req_length < frag->super.frag_header.hdr_msg_offset) {
+
+                /* user buffer is to small - discard entire fragment */
+                frag->super.frag_addr = 0;
+                frag->super.frag_size = 0;
+
+            } else if (request->super.req_length < frag->super.frag_header.hdr_msg_offset +
+                frag->super.frag_header.hdr_frag_length) {
+    
+                /* user buffer is to small - discard part of fragment */
+                frag->super.frag_addr = ((unsigned char*)request->super.req_addr +  
+                    frag->super.frag_header.hdr_msg_offset);
+                frag->super.frag_size = request->super.req_length - frag->super.frag_header.hdr_msg_offset;
+
+            } else {
+
+                /* user buffer is large enough for this fragment */
+                frag->super.frag_addr = ((unsigned char*)request->super.req_addr +  
+                    frag->super.frag_header.hdr_msg_offset);
+                frag->super.frag_size = frag->super.frag_header.hdr_frag_length;
+
+            }
+
+            /* send cts acknowledgment back to peer */
+            ptl->ptl_cts(ptl, frag);
+ 
+            /* process any fragments that arrived out of order */
+            frag = (mca_ptl_base_recv_frag_t*)lam_list_remove_first(&matched_frags);
+        } while(NULL != frag);
+    }
+    return LAM_SUCCESS;
+}
+
+
diff --git a/src/mca/mpi/ptl/base/ptl_base_recvfrag.h b/src/mca/mpi/ptl/base/ptl_base_recvfrag.h
index afdaa502ce..adad35e209 100644
--- a/src/mca/mpi/ptl/base/ptl_base_recvfrag.h
+++ b/src/mca/mpi/ptl/base/ptl_base_recvfrag.h
@@ -13,15 +13,17 @@
 extern lam_class_info_t mca_ptl_base_recv_frag_cls;
 
 
-typedef struct {
+struct mca_ptl_base_recv_frag_t {
     mca_ptl_base_frag_t super;
-    /* matched receve request corresponding to this fragment */
-    mca_ptl_base_recv_request_t *frag_match;
-} mca_ptl_base_recv_frag_t;
+    mca_ptl_base_recv_request_t *frag_request; /* matched posted receive */
+    struct mca_ptl_peer_t* frag_peer; /* peer received from */
+};
+typedef struct mca_ptl_base_recv_frag_t mca_ptl_base_recv_frag_t;
 
 
 void mca_ptl_base_recv_frag_init(mca_ptl_base_recv_frag_t*);
 void mca_ptl_base_recv_frag_destroy(mca_ptl_base_recv_frag_t*);
+int  mca_ptl_base_recv_frag_match(mca_ptl_base_recv_frag_t*, mca_ptl_base_header_t*);
 
 
 #endif
diff --git a/src/mca/mpi/ptl/base/ptl_base_recvreq.c b/src/mca/mpi/ptl/base/ptl_base_recvreq.c
index d3c0c603ad..44c1e7ef55 100644
--- a/src/mca/mpi/ptl/base/ptl_base_recvreq.c
+++ b/src/mca/mpi/ptl/base/ptl_base_recvreq.c
@@ -5,6 +5,7 @@
 
 #include "mca/mpi/ptl/base/ptl_base_comm.h"
 #include "mca/mpi/ptl/base/ptl_base_recvreq.h"
+#include "mca/mpi/ptl/base/ptl_base_recvfrag.h"
 
 
 lam_class_info_t mca_ptl_base_recv_request_cls = { 
@@ -48,4 +49,8 @@ int mca_ptl_base_recv_request_match_wild(mca_ptl_base_recv_request_t* req)
     return LAM_SUCCESS;
 }
 
+void mca_ptl_base_recv_request_progress(mca_ptl_base_recv_request_t* req, mca_ptl_base_recv_frag_t* frag)
+{
+
+}
 
diff --git a/src/mca/mpi/ptl/base/ptl_base_recvreq.h b/src/mca/mpi/ptl/base/ptl_base_recvreq.h
index ff99f8869b..76c2a68586 100644
--- a/src/mca/mpi/ptl/base/ptl_base_recvreq.h
+++ b/src/mca/mpi/ptl/base/ptl_base_recvreq.h
@@ -9,6 +9,7 @@
 #include "mca/mpi/pml/base/pml_base_request.h"
 
 extern lam_class_info_t mca_ptl_base_recv_request_cls;;
+struct mca_ptl_base_recv_frag_t;
 
 
 typedef struct {
@@ -19,8 +20,9 @@ typedef struct {
 
 void mca_ptl_base_recv_request_init(mca_ptl_base_recv_request_t*);
 void mca_ptl_base_recv_request_destroy(mca_ptl_base_recv_request_t*);
-int mca_ptl_base_recv_request_match_wild(mca_ptl_base_recv_request_t*);
-int mca_ptl_base_recv_request_match_specific(mca_ptl_base_recv_request_t*);
+int  mca_ptl_base_recv_request_match_wild(mca_ptl_base_recv_request_t*);
+int  mca_ptl_base_recv_request_match_specific(mca_ptl_base_recv_request_t*);
+void mca_ptl_base_recv_request_progress(mca_ptl_base_recv_request_t*, struct mca_ptl_base_recv_frag_t*);
 
 
 static inline void mca_ptl_base_recv_request_reinit(
diff --git a/src/mca/mpi/ptl/base/ptl_base_sendfrag.h b/src/mca/mpi/ptl/base/ptl_base_sendfrag.h
index 44d9c54138..c2b9c1ba66 100644
--- a/src/mca/mpi/ptl/base/ptl_base_sendfrag.h
+++ b/src/mca/mpi/ptl/base/ptl_base_sendfrag.h
@@ -13,8 +13,6 @@ extern lam_class_info_t mca_ptl_base_send_frag_cls;
 struct mca_ptl_base_send_frag_t {
     mca_ptl_base_frag_t super;
     struct mca_ptl_base_send_request_t *frag_request;
-    unsigned char* frag_data;
-    size_t frag_size;
 };
 typedef struct mca_ptl_base_send_frag_t mca_ptl_base_send_frag_t;
 
diff --git a/src/mca/mpi/ptl/ptl.h b/src/mca/mpi/ptl/ptl.h
index 1574dee1a0..a8cbb7f185 100644
--- a/src/mca/mpi/ptl/ptl.h
+++ b/src/mca/mpi/ptl/ptl.h
@@ -23,6 +23,7 @@ struct mca_ptl_t;
 struct mca_ptl_peer_t;
 struct mca_ptl_base_fragment_t;
 struct mca_ptl_base_send_request_t;
+struct mca_ptl_base_recv_frag_t;
 
 typedef uint64_t mca_ptl_base_sequence_t;
 typedef uint64_t mca_ptl_base_tstamp_t;
@@ -126,6 +127,11 @@ typedef void (*mca_ptl_base_request_return_fn_t)(
     struct mca_ptl_base_send_request_t* request
 );
 
+typedef void (*mca_ptl_base_frag_return_fn_t)(
+    struct mca_ptl_t* ptl, 
+    struct mca_ptl_base_recv_frag_t* frag
+);
+
 typedef int (*mca_ptl_base_send_fn_t)(
     struct mca_ptl_t* ptl, 
     struct mca_ptl_peer_t* ptl_peer, 
@@ -134,6 +140,11 @@ typedef int (*mca_ptl_base_send_fn_t)(
     bool* complete
 );
 
+typedef int (*mca_ptl_base_cts_fn_t)(
+    struct mca_ptl_t* ptl, 
+    struct mca_ptl_base_recv_frag_t* recv_frag
+);
+
 /**
  * PTL instance interface functions and common state.
  */
@@ -154,8 +165,10 @@ struct mca_ptl_t {
     mca_ptl_base_del_proc_fn_t         ptl_del_proc;
     mca_ptl_base_finalize_fn_t         ptl_finalize;
     mca_ptl_base_send_fn_t             ptl_send;
+    mca_ptl_base_cts_fn_t              ptl_cts;
     mca_ptl_base_request_alloc_fn_t    ptl_request_alloc;
     mca_ptl_base_request_return_fn_t   ptl_request_return;
+    mca_ptl_base_frag_return_fn_t      ptl_frag_return;
 };
 typedef struct mca_ptl_t mca_ptl_t;
 
diff --git a/src/mca/mpi/ptl/tcp/src/Makefile.am b/src/mca/mpi/ptl/tcp/src/Makefile.am
index 5bbccc69b9..aaa0c8dba7 100644
--- a/src/mca/mpi/ptl/tcp/src/Makefile.am
+++ b/src/mca/mpi/ptl/tcp/src/Makefile.am
@@ -21,6 +21,7 @@ libmca_ptl_tcp_la_SOURCES = \
 	ptl_tcp_module.c \
 	ptl_tcp_recvfrag.c \
 	ptl_tcp_recvfrag.h \
-	ptl_tcp_send.c \
 	ptl_tcp_sendfrag.c \
-	ptl_tcp_sendfrag.h
+	ptl_tcp_sendfrag.h \
+	ptl_tcp_sendreq.c \
+	ptl_tcp_sendreq.h
diff --git a/src/mca/mpi/ptl/tcp/src/ptl_tcp.c b/src/mca/mpi/ptl/tcp/src/ptl_tcp.c
index 1c1618b6db..070d6b403d 100644
--- a/src/mca/mpi/ptl/tcp/src/ptl_tcp.c
+++ b/src/mca/mpi/ptl/tcp/src/ptl_tcp.c
@@ -8,11 +8,13 @@
 #include "mca/mpi/pml/pml.h"
 #include "mca/mpi/ptl/ptl.h"
 #include "mca/mpi/ptl/base/ptl_base_sendreq.h"
+#include "mca/mpi/ptl/base/ptl_base_sendfrag.h"
 #include "mca/lam/base/mca_base_module_exchange.h"
 #include "ptl_tcp.h"
 #include "ptl_tcp_addr.h"
 #include "ptl_tcp_peer.h"
 #include "ptl_tcp_proc.h"
+#include "ptl_tcp_sendreq.h"
 
 
 mca_ptl_tcp_t mca_ptl_tcp = {
@@ -28,8 +30,10 @@ mca_ptl_tcp_t mca_ptl_tcp = {
     mca_ptl_tcp_del_proc,
     mca_ptl_tcp_finalize,
     mca_ptl_tcp_send,
+    mca_ptl_tcp_cts,
     mca_ptl_tcp_request_alloc,
-    mca_ptl_tcp_request_return
+    mca_ptl_tcp_request_return,
+    mca_ptl_tcp_frag_return
     }
 };
 
@@ -114,8 +118,44 @@ int mca_ptl_tcp_request_alloc(struct mca_ptl_t* ptl, struct mca_ptl_base_send_re
     return rc;
 }
 
+
 void mca_ptl_tcp_request_return(struct mca_ptl_t* ptl, struct mca_ptl_base_send_request_t* request)
 {
     lam_free_list_return(&mca_ptl_tcp_module.tcp_send_requests, (lam_list_item_t*)request);
 }
 
+
+void mca_ptl_tcp_frag_return(struct mca_ptl_t* ptl, struct mca_ptl_base_recv_frag_t* frag)
+{
+    lam_free_list_return(&mca_ptl_tcp_module.tcp_recv_frags, (lam_list_item_t*)frag);
+}
+
+
+int mca_ptl_tcp_send(
+    struct mca_ptl_t* ptl,
+    struct mca_ptl_peer_t* ptl_peer,
+    struct mca_ptl_base_send_request_t* sendreq,
+    size_t size,
+    bool* complete)
+{
+    mca_ptl_tcp_send_frag_t* sendfrag;
+    if (sendreq->req_frags == 0) {
+        sendfrag = &((mca_ptl_tcp_send_request_t*)sendreq)->req_frag;
+    } else {
+        int rc;
+        sendfrag = (mca_ptl_tcp_send_frag_t*)lam_free_list_get(&mca_ptl_tcp_module.tcp_send_frags, &rc);
+        if(sendfrag == 0)
+            return rc;
+    }
+    mca_ptl_tcp_send_frag_reinit(sendfrag, ptl_peer, sendreq, size);
+    return mca_ptl_tcp_peer_send(ptl_peer, sendfrag);
+}
+
+
+int mca_ptl_tcp_cts(
+    struct mca_ptl_t* ptl,
+    struct mca_ptl_base_recv_frag_t* frag)
+{
+    return LAM_ERROR;
+}
+
diff --git a/src/mca/mpi/ptl/tcp/src/ptl_tcp.h b/src/mca/mpi/ptl/tcp/src/ptl_tcp.h
index f249e3bae1..44181b027b 100644
--- a/src/mca/mpi/ptl/tcp/src/ptl_tcp.h
+++ b/src/mca/mpi/ptl/tcp/src/ptl_tcp.h
@@ -102,6 +102,11 @@ extern void mca_ptl_tcp_request_return(
     struct mca_ptl_base_send_request_t*
 );
 
+extern void mca_ptl_tcp_frag_return(
+    struct mca_ptl_t* ptl,
+    struct mca_ptl_base_recv_frag_t*
+);
+
 extern int mca_ptl_tcp_send(
     struct mca_ptl_t* ptl,
     struct mca_ptl_peer_t* ptl_peer,
@@ -110,6 +115,11 @@ extern int mca_ptl_tcp_send(
     bool* complete
 );
                                                                                                  
+extern int mca_ptl_tcp_cts(
+    struct mca_ptl_t* ptl,
+    struct mca_ptl_base_recv_frag_t* frag
+);
+                                                                                                 
 
 #endif
 
diff --git a/src/mca/mpi/ptl/tcp/src/ptl_tcp_module.c b/src/mca/mpi/ptl/tcp/src/ptl_tcp_module.c
index 261912f6b0..663972dd41 100644
--- a/src/mca/mpi/ptl/tcp/src/ptl_tcp_module.c
+++ b/src/mca/mpi/ptl/tcp/src/ptl_tcp_module.c
@@ -19,6 +19,7 @@
 #include "ptl_tcp_proc.h"
 #include "ptl_tcp_recvfrag.h"
 #include "ptl_tcp_sendfrag.h"
+#include "ptl_tcp_sendreq.h"
 
 
 mca_ptl_tcp_module_1_0_0_t mca_ptl_tcp_module = {
@@ -30,7 +31,7 @@ mca_ptl_tcp_module_1_0_0_t mca_ptl_tcp_module = {
     /* Indicate that we are a pml v1.0.0 module (which also implies a
        specific MCA version) */
                                                                                                                             
-    MCA_PML_BASE_VERSION_1_0_0,
+    MCA_PTL_BASE_VERSION_1_0_0,
                                                                                                                             
     "tcp", /* MCA module name */
     1,  /* MCA module major version */
@@ -280,8 +281,8 @@ mca_ptl_t** mca_ptl_tcp_module_init(int *num_ptls,
     /* initialize free lists */
     STATIC_INIT(mca_ptl_tcp_module.tcp_send_requests, &lam_free_list_cls);
     lam_free_list_init_with(&mca_ptl_tcp_module.tcp_send_requests, 
-        sizeof(mca_ptl_base_send_request_t) + sizeof(mca_ptl_tcp_send_frag_t),
-        &mca_ptl_base_send_request_cls,
+        sizeof(mca_ptl_tcp_send_request_t),
+        &mca_ptl_tcp_send_request_cls,
         mca_ptl_tcp_module.tcp_free_list_num,
         mca_ptl_tcp_module.tcp_free_list_max,
         mca_ptl_tcp_module.tcp_free_list_inc,
diff --git a/src/mca/mpi/ptl/tcp/src/ptl_tcp_recvfrag.c b/src/mca/mpi/ptl/tcp/src/ptl_tcp_recvfrag.c
index bae560864c..36b70074cd 100644
--- a/src/mca/mpi/ptl/tcp/src/ptl_tcp_recvfrag.c
+++ b/src/mca/mpi/ptl/tcp/src/ptl_tcp_recvfrag.c
@@ -21,27 +21,29 @@ static bool mca_ptl_tcp_recv_frag_data(mca_ptl_tcp_recv_frag_t* frag, int sd);
 static bool mca_ptl_tcp_recv_frag_discard(mca_ptl_tcp_recv_frag_t* frag, int sd);
 
 
-
 void mca_ptl_tcp_recv_frag_init(mca_ptl_tcp_recv_frag_t* frag)
 {
     SUPER_INIT(frag, &mca_ptl_base_recv_frag_cls);
 }
 
+
 void mca_ptl_tcp_recv_frag_destroy(mca_ptl_tcp_recv_frag_t* frag)
 {
     SUPER_DESTROY(frag, &mca_ptl_base_recv_frag_cls);
 }
 
+
 void mca_ptl_tcp_recv_frag_reinit(mca_ptl_tcp_recv_frag_t* frag, mca_ptl_peer_t* peer)
 {
     frag->frag_owner = &peer->peer_ptl->super;
-    frag->frag_match = 0;
+    frag->super.frag_request = 0;
     frag->frag_peer = peer;
     frag->frag_addr = 0;
     frag->frag_size = 0;
     frag->frag_hdr_cnt = 0;
     frag->frag_msg_cnt = 0;
 }
+                                                                                                                
 
 bool mca_ptl_tcp_recv_frag_handler(mca_ptl_tcp_recv_frag_t* frag, int sd)
 {
@@ -57,10 +59,14 @@ bool mca_ptl_tcp_recv_frag_handler(mca_ptl_tcp_recv_frag_t* frag, int sd)
         if(mca_ptl_tcp_recv_frag_discard(frag, sd) == false)
             return false;
 
-    /* done - do something */
+    if(NULL != frag->super.frag_request) {
+        /* indicate completion status */
+        mca_ptl_base_recv_request_progress(frag->super.frag_request, &frag->super);
+    }
     return true; 
 }
 
+
 static bool mca_ptl_tcp_recv_frag_header(mca_ptl_tcp_recv_frag_t* frag, int sd)
 {
     /* non-blocking read - continue if interrupted, otherwise wait until data available */
@@ -94,12 +100,15 @@ static bool mca_ptl_tcp_recv_frag_header(mca_ptl_tcp_recv_frag_t* frag, int sd)
         return false;
 
     /* attempt to match a posted recv */
-    /* FIX */
+    mca_ptl_base_recv_frag_match(&frag->super, &frag->frag_header);
 
     /* match was not made - so allocate buffer for eager send */
-    if(NULL == frag->frag_match) {
+    if(NULL == frag->super.frag_request) {
         frag->frag_addr = (unsigned char*)LAM_MALLOC(frag->frag_header.hdr_frag_length);
         frag->frag_size = frag->frag_header.hdr_frag_length;
+    } else {
+        frag->frag_addr = (unsigned char*)frag->super.super.frag_addr;
+        frag->frag_size = frag->super.super.frag_size;
     }
     return true;
 }
diff --git a/src/mca/mpi/ptl/tcp/src/ptl_tcp_recvfrag.h b/src/mca/mpi/ptl/tcp/src/ptl_tcp_recvfrag.h
index 9668d35fb1..f55380d8e7 100644
--- a/src/mca/mpi/ptl/tcp/src/ptl_tcp_recvfrag.h
+++ b/src/mca/mpi/ptl/tcp/src/ptl_tcp_recvfrag.h
@@ -18,12 +18,11 @@ extern lam_class_info_t mca_ptl_tcp_recv_frag_cls;
 
 struct mca_ptl_tcp_recv_frag_t {
     mca_ptl_base_recv_frag_t super;
-    struct mca_ptl_peer_t* frag_peer;
     unsigned char* frag_addr;
     size_t frag_size;
     size_t frag_hdr_cnt;
     size_t frag_msg_cnt;
-#define frag_match super.frag_match
+#define frag_peer super.super.frag_peer
 #define frag_owner super.super.frag_owner
 #define frag_header super.super.frag_header
 };
@@ -33,7 +32,8 @@ typedef struct mca_ptl_tcp_recv_frag_t mca_ptl_tcp_recv_frag_t;
 void mca_ptl_tcp_recv_frag_init(mca_ptl_tcp_recv_frag_t*);
 void mca_ptl_tcp_recv_frag_destroy(mca_ptl_tcp_recv_frag_t*);
 bool mca_ptl_tcp_recv_frag_handler(mca_ptl_tcp_recv_frag_t*, int sd);
-void mca_ptl_tcp_recv_frag_reinit(mca_ptl_tcp_recv_frag_t*, struct mca_ptl_peer_t*);
+void mca_ptl_tcp_recv_frag_reinit(mca_ptl_tcp_recv_frag_t* frag, struct mca_ptl_peer_t* peer);
+
 
 #endif
 
diff --git a/src/mca/mpi/ptl/tcp/src/ptl_tcp_sendfrag.c b/src/mca/mpi/ptl/tcp/src/ptl_tcp_sendfrag.c
index 370720df71..b5d4947e3c 100644
--- a/src/mca/mpi/ptl/tcp/src/ptl_tcp_sendfrag.c
+++ b/src/mca/mpi/ptl/tcp/src/ptl_tcp_sendfrag.c
@@ -63,8 +63,8 @@ void mca_ptl_tcp_send_frag_reinit(
     /* fragment state */
     sendfrag->frag_owner = &ptl_peer->peer_ptl->super;
     sendfrag->super.frag_request = sendreq;
-    sendfrag->super.frag_data = sendreq->req_data + hdr->hdr_msg_offset;
-    sendfrag->super.frag_size = size;
+    sendfrag->super.super.frag_addr = sendreq->super.req_addr + hdr->hdr_msg_offset;
+    sendfrag->super.super.frag_size = size;
 
     sendfrag->frag_peer = ptl_peer;
     sendfrag->frag_vec_ptr = sendfrag->frag_vec;
@@ -72,8 +72,8 @@ void mca_ptl_tcp_send_frag_reinit(
     sendfrag->frag_vec[0].iov_len = sizeof(mca_ptl_base_header_t);
     sendfrag->frag_vec_cnt = 1;
     if(size > 0) {
-        sendfrag->frag_vec[1].iov_base = (lam_iov_base_ptr_t)sendfrag->super.frag_data;
-        sendfrag->frag_vec[1].iov_len = sendfrag->super.frag_size;
+        sendfrag->frag_vec[1].iov_base = (lam_iov_base_ptr_t)sendfrag->super.super.frag_addr;
+        sendfrag->frag_vec[1].iov_len = sendfrag->super.super.frag_size;
         sendfrag->frag_vec_cnt++;
     }
 }
diff --git a/src/mca/mpi/ptl/tcp/src/ptl_tcp_sendfrag.h b/src/mca/mpi/ptl/tcp/src/ptl_tcp_sendfrag.h
index f10d875010..64c63f24d0 100644
--- a/src/mca/mpi/ptl/tcp/src/ptl_tcp_sendfrag.h
+++ b/src/mca/mpi/ptl/tcp/src/ptl_tcp_sendfrag.h
@@ -18,10 +18,10 @@ extern lam_class_info_t mca_ptl_tcp_send_frag_cls;
 
 struct mca_ptl_tcp_send_frag_t {
    mca_ptl_base_send_frag_t super;
-   struct mca_ptl_peer_t* frag_peer;
    struct iovec *frag_vec_ptr;
    size_t frag_vec_cnt;
    struct iovec frag_vec[2];
+#define frag_peer super.super.frag_peer
 #define frag_header super.super.frag_header
 #define frag_owner super.super.frag_owner
 };
diff --git a/src/mpi/communicator/communicator.h b/src/mpi/communicator/communicator.h
index 6dae5d1234..4da751fc16 100644
--- a/src/mpi/communicator/communicator.h
+++ b/src/mpi/communicator/communicator.h
@@ -47,15 +47,15 @@ typedef struct lam_communicator_t lam_communicator_t;
 static inline lam_communicator_t *lam_comm_lookup(uint32_t cid) 
 { 
     /* array of pointers to communicators, indexed by context ID */
-    extern lam_communicator_t **lam_communicator_array;
+    extern lam_communicator_t **lam_mpi_comm_array;
 #ifdef LAM_ENABLE_DEBUG
-    extern uint32_t lam_communicator_array_len;
-    if(cid >= lam_communicator_array_len) {
+    extern uint32_t lam_mpi_comm_array_size;
+    if(cid >= lam_mpi_comm_array_size) {
         lam_output(0, "lam_comm_lookup: invalid communicator index (%d)", cid);
         return (lam_communicator_t *) NULL;
     }
 #endif
-    return lam_communicator_array[cid]; 
+    return lam_mpi_comm_array[cid]; 
 }
 
 static inline lam_proc_t* lam_comm_lookup_peer(lam_communicator_t* comm, size_t peer_id)
diff --git a/src/mpi/communicator/mpi_comm_globals.c b/src/mpi/communicator/mpi_comm_globals.c
index 0d49b557f6..2208a7ced5 100644
--- a/src/mpi/communicator/mpi_comm_globals.c
+++ b/src/mpi/communicator/mpi_comm_globals.c
@@ -14,5 +14,8 @@
  * Global variables
  */
 
+lam_communicator_t *lam_mpi_comm_array;
+size_t lam_mpi_comm_array_size;
+
 lam_communicator_t lam_mpi_comm_world;
 lam_communicator_t lam_mpi_comm_self;