diff --git a/src/components/tl/ucp/allgather/allgather.c b/src/components/tl/ucp/allgather/allgather.c
index c33a98b5f6..769c4fb981 100644
--- a/src/components/tl/ucp/allgather/allgather.c
+++ b/src/components/tl/ucp/allgather/allgather.c
@@ -9,26 +9,6 @@
 
 #define ALLGATHER_MAX_PATTERN_SIZE (sizeof(UCC_TL_UCP_ALLGATHER_DEFAULT_ALG_SELECT_STR))
 
-/*--------------YAELIS FUNCTION---------------------*/
-
-ucc_status_t new_ucp_tl_self_copy_nb(void *dst, void *src, size_t len, ucc_memory_type_t dst_mem,ucc_memory_type_t src_mem, ucc_rank_t rank, ucc_tl_ucp_team_t *team, ucc_tl_ucp_task_t *task){
-    ucc_status_t status;
-    status = ucc_tl_ucp_send_nb(src, len, src_mem, rank, team, task);
-    if (ucc_unlikely(UCC_OK != status)) {
-                printf("\n allgather.c line 18 \n");
-                task->super.status = status;
-                return status;
-            }
-    status = ucc_tl_ucp_recv_nb(dst, len, dst_mem, rank, team, task);
-    if (ucc_unlikely(UCC_OK != status)) {
-                printf("\n allgather.c line 24 \n");
-                task->super.status = status;
-                return status;
-            }
-    return UCC_OK;
-}
-
-/*--------------YAELIS FUNCTION---------------------*/
 ucc_base_coll_alg_info_t
     ucc_tl_ucp_allgather_algs[UCC_TL_UCP_ALLGATHER_ALG_LAST + 1] = {
         [UCC_TL_UCP_ALLGATHER_ALG_KNOMIAL] =
diff --git a/src/components/tl/ucp/allgather/allgather.h b/src/components/tl/ucp/allgather/allgather.h
index 6c123831df..b9269aacdd 100644
--- a/src/components/tl/ucp/allgather/allgather.h
+++ b/src/components/tl/ucp/allgather/allgather.h
@@ -10,13 +10,6 @@
  #include "tl_ucp_sendrecv.h"
 
 
-
-#define NEW_MEMCPY(use_cuda, dst, src, len, dst_mem_type, src_mem_type, rank, team, task) \
-    ((use_cuda) ? ucc_mc_memcpy(dst, src, len, dst_mem_type, src_mem_type) : \
-                  new_ucp_tl_self_copy_nb(dst, src, len, dst_mem_type, src_mem_type, rank, team, task))
-
-
-
 enum {
     UCC_TL_UCP_ALLGATHER_ALG_KNOMIAL,
     UCC_TL_UCP_ALLGATHER_ALG_RING,
diff --git a/src/components/tl/ucp/allgather/allgather_bruck.c b/src/components/tl/ucp/allgather/allgather_bruck.c
index 6ecafba50b..a1cb01cfc1 100644
--- a/src/components/tl/ucp/allgather/allgather_bruck.c
+++ b/src/components/tl/ucp/allgather/allgather_bruck.c
@@ -240,6 +240,7 @@ ucc_status_t ucc_tl_ucp_allgather_bruck_start(ucc_coll_task_t *coll_task)
     /* initial step: copy data on non root ranks to the beginning of buffer */
 
     uint32_t USE_CUDA = UCC_TL_UCP_TEAM_LIB(team)->cfg.allgather_use_cuda;
+
     if (!UCC_IS_INPLACE(TASK_ARGS(task))) {
         // not inplace: copy chunk from source buff to beginning of receive
         if(USE_CUDA){
@@ -254,6 +255,7 @@ ucc_status_t ucc_tl_ucp_allgather_bruck_start(ucc_coll_task_t *coll_task)
         }
         
     } else if (trank != 0) {
+        printf(" inplace\n");
         // inplace: copy chunk to the begin
         if(USE_CUDA){
             status = ucc_mc_memcpy(rbuf, PTR_OFFSET(rbuf, data_size * trank),
diff --git a/src/components/tl/ucp/allgather/allgather_knomial.c b/src/components/tl/ucp/allgather/allgather_knomial.c
index e3a296ef9e..5ae41af193 100644
--- a/src/components/tl/ucp/allgather/allgather_knomial.c
+++ b/src/components/tl/ucp/allgather/allgather_knomial.c
@@ -205,9 +205,7 @@ ucc_status_t ucc_tl_ucp_allgather_knomial_start(ucc_coll_task_t *coll_task)
     
 
     uint32_t USE_CUDA = UCC_TL_UCP_TEAM_LIB(team)->cfg.allgather_use_cuda;
-    if(rank==0){
-        printf("knomial, rank0 start\n");
-    }
+
     UCC_TL_UCP_PROFILE_REQUEST_EVENT(coll_task, "ucp_allgather_kn_start", 0);
     ucc_tl_ucp_task_reset(task, UCC_INPROGRESS);
     task->allgather_kn.etask = NULL;
@@ -239,9 +237,9 @@ ucc_status_t ucc_tl_ucp_allgather_knomial_start(ucc_coll_task_t *coll_task)
             } else {
                 /* Loopback */
                 UCPCHECK_GOTO(ucc_tl_ucp_send_nb(args->src.info.buffer, args->src.info.count * ucc_dt_size(args->src.info.datatype),
-                                args->src.info.mem_type, rank, team, task),task, out2);
+                                args->src.info.mem_type, rank, team, task),task, enqueue);
                 UCPCHECK_GOTO(ucc_tl_ucp_recv_nb(PTR_OFFSET(args->dst.info.buffer, offset), args->src.info.count * ucc_dt_size(args->src.info.datatype),
-                                args->dst.info.mem_type, rank, team, task),task, out2);
+                                args->dst.info.mem_type, rank, team, task),task, enqueue);
             }
         }
       
@@ -256,7 +254,7 @@ ucc_status_t ucc_tl_ucp_allgather_knomial_start(ucc_coll_task_t *coll_task)
             ucc_knomial_pattern_loop_rank(p, rank),
             p->radix, 0);
     }
-out2:
+enqueue:
     task->allgather_kn.sbuf = PTR_OFFSET(args->dst.info.buffer, offset);
     return ucc_progress_queue_enqueue(UCC_TL_CORE_CTX(team)->pq, &task->super);
 }
diff --git a/src/components/tl/ucp/allgather/allgather_neighbor.c b/src/components/tl/ucp/allgather/allgather_neighbor.c
index 846b6d250f..8a2a4636f0 100644
--- a/src/components/tl/ucp/allgather/allgather_neighbor.c
+++ b/src/components/tl/ucp/allgather/allgather_neighbor.c
@@ -145,27 +145,27 @@ ucc_status_t ucc_tl_ucp_allgather_neighbor_start(ucc_coll_task_t *coll_task)
     ucc_rank_t         neighbor;
     void              *tmprecv, *tmpsend;
 
+    
     UCC_TL_UCP_PROFILE_REQUEST_EVENT(coll_task, "ucp_allgather_neighbor_start",
                                      0);
     ucc_tl_ucp_task_reset(task, UCC_INPROGRESS);
 
     uint32_t USE_CUDA = UCC_TL_UCP_TEAM_LIB(team)->cfg.allgather_use_cuda;
-    
+
     if (!UCC_IS_INPLACE(TASK_ARGS(task))) {
-        /*
-        status = ucc_mc_memcpy(PTR_OFFSET(rbuf, data_size * trank), sbuf,
+        if(!USE_CUDA){
+            status = ucc_mc_memcpy(PTR_OFFSET(rbuf, data_size * trank), sbuf,
                                data_size, rmem, smem);
-        if (ucc_unlikely(UCC_OK != status)) {
-            return status;
-        }
-        */
-        status = NEW_MEMCPY(USE_CUDA, PTR_OFFSET(rbuf, data_size * trank), sbuf, data_size, rmem, smem, trank, team, task);
-        if (ucc_unlikely(UCC_OK != status)) {
-            printf("error neighbor line 162\n");
-            return status;
+            if (ucc_unlikely(UCC_OK != status)) {
+                return status;
+            }
+        } else {
+            /* Loopback */
+            UCPCHECK_GOTO(ucc_tl_ucp_send_nb(sbuf, data_size, smem, trank, team, task),task, tmp);
+            UCPCHECK_GOTO(ucc_tl_ucp_recv_nb(PTR_OFFSET(rbuf, data_size * trank), data_size, rmem, trank, team, task),task, tmp);
         }
     }
-
+tmp:
     if (trank % 2) {
         neighbor = (trank - 1 + tsize) % tsize;
     } else {
diff --git a/src/components/tl/ucp/allgather/allgather_ring.c b/src/components/tl/ucp/allgather/allgather_ring.c
index b4e3436a20..97ac6d74d0 100644
--- a/src/components/tl/ucp/allgather/allgather_ring.c
+++ b/src/components/tl/ucp/allgather/allgather_ring.c
@@ -97,7 +97,6 @@ ucc_status_t ucc_tl_ucp_allgather_ring_start(ucc_coll_task_t *coll_task)
 
     if (!UCC_IS_INPLACE(TASK_ARGS(task))) {
         block = task->allgather_ring.get_send_block(&task->subset, trank, tsize, 0);
-        
         if(USE_CUDA){
             status = ucc_mc_memcpy(PTR_OFFSET(rbuf, data_size * block),
                                sbuf, data_size, rmem, smem);
diff --git a/src/components/tl/ucp/allgather/allgather_sparbit.c b/src/components/tl/ucp/allgather/allgather_sparbit.c
index caef51199d..508c839245 100644
--- a/src/components/tl/ucp/allgather/allgather_sparbit.c
+++ b/src/components/tl/ucp/allgather/allgather_sparbit.c
@@ -131,7 +131,14 @@ ucc_status_t ucc_tl_ucp_allgather_sparbit_start(ucc_coll_task_t *coll_task)
     task->allgather_sparbit.data_expected = 1;
 
     uint32_t USE_CUDA = UCC_TL_UCP_TEAM_LIB(team)->cfg.allgather_use_cuda;
-    
+    if(trank == 0){
+        printf("\nin sparbit using: ");
+        if(USE_CUDA){
+            printf("cuda\n");
+        } else {
+            printf("loop\n");
+        }
+    }
     if (!UCC_IS_INPLACE(TASK_ARGS(task))) {
         if(USE_CUDA){
             status = ucc_mc_memcpy(PTR_OFFSET(rbuf, data_size * trank), sbuf,