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handle MPI_IN_PLACE for MPI_Scan
[simgrid.git] / src / smpi / bindings / smpi_pmpi_coll.cpp
index b642343..8c246d8 100644 (file)
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -12,9 +12,7 @@
 
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(smpi_pmpi);
 
-
 /* PMPI User level calls */
-extern "C" { // Obviously, the C MPI interface should use the C linkage
 
 int PMPI_Bcast(void *buf, int count, MPI_Datatype datatype, int root, MPI_Comm comm)
 {
@@ -27,24 +25,16 @@ int PMPI_Bcast(void *buf, int count, MPI_Datatype datatype, int root, MPI_Comm c
   } else if (not datatype->is_valid()) {
     retval = MPI_ERR_ARG;
   } else {
-    int rank        = smpi_process()->index();
-    int root_traced = comm->group()->index(root);
-
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_BCAST;
-    extra->root            = root_traced;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(datatype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send   = datatype->size();
-    extra->send_size = count * dt_size_send;
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    int rank = simgrid::s4u::this_actor::get_pid();
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::CollTIData("bcast", root, -1.0,
+                                                      datatype->is_replayable() ? count : count * datatype->size(), -1,
+                                                      simgrid::smpi::Datatype::encode(datatype), ""));
     if (comm->size() > 1)
       simgrid::smpi::Colls::bcast(buf, count, datatype, root, comm);
     retval = MPI_SUCCESS;
 
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
   smpi_bench_begin();
   return retval;
@@ -59,10 +49,8 @@ int PMPI_Barrier(MPI_Comm comm)
   if (comm == MPI_COMM_NULL) {
     retval = MPI_ERR_COMM;
   } else {
-    int rank               = smpi_process()->index();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_BARRIER;
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    int rank = simgrid::s4u::this_actor::get_pid();
+    TRACE_smpi_comm_in(rank, __func__, new simgrid::instr::NoOpTIData("barrier"));
 
     simgrid::smpi::Colls::barrier(comm);
 
@@ -71,7 +59,7 @@ int PMPI_Barrier(MPI_Comm comm)
 
     retval = MPI_SUCCESS;
 
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
 
   smpi_bench_begin();
@@ -101,29 +89,19 @@ int PMPI_Gather(void *sendbuf, int sendcount, MPI_Datatype sendtype,void *recvbu
       sendtmpcount=0;
       sendtmptype=recvtype;
     }
-    int rank               = smpi_process()->index();
-    int root_traced        = comm->group()->index(root);
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_GATHER;
-    extra->root            = root_traced;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(sendtmptype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send   = sendtmptype->size();
-    extra->send_size = sendtmpcount * dt_size_send;
-    extra->datatype2 = encode_datatype(recvtype, &known);
-    int dt_size_recv = 1;
-    if ((comm->rank() == root) && known == 0)
-      dt_size_recv   = recvtype->size();
-    extra->recv_size = recvcount * dt_size_recv;
-
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    int rank = simgrid::s4u::this_actor::get_pid();
+
+    TRACE_smpi_comm_in(
+        rank, __func__,
+        new simgrid::instr::CollTIData(
+            "gather", root, -1.0, sendtmptype->is_replayable() ? sendtmpcount : sendtmpcount * sendtmptype->size(),
+            (comm->rank() != root || recvtype->is_replayable()) ? recvcount : recvcount * recvtype->size(),
+            simgrid::smpi::Datatype::encode(sendtmptype), simgrid::smpi::Datatype::encode(recvtype)));
 
     simgrid::smpi::Colls::gather(sendtmpbuf, sendtmpcount, sendtmptype, recvbuf, recvcount, recvtype, root, comm);
 
     retval = MPI_SUCCESS;
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
 
   smpi_bench_begin();
@@ -144,7 +122,7 @@ int PMPI_Gatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recv
     retval = MPI_ERR_TYPE;
   } else if (( sendbuf != MPI_IN_PLACE) && (sendcount <0)){
     retval = MPI_ERR_COUNT;
-  } else if (recvcounts == nullptr || displs == nullptr) {
+  } else if ((comm->rank() == root) && (recvcounts == nullptr || displs == nullptr)) {
     retval = MPI_ERR_ARG;
   } else {
     char* sendtmpbuf = static_cast<char*>(sendbuf);
@@ -155,32 +133,24 @@ int PMPI_Gatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recv
       sendtmptype=recvtype;
     }
 
-    int rank               = smpi_process()->index();
-    int root_traced        = comm->group()->index(root);
-    int size               = comm->size();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_GATHERV;
-    extra->num_processes   = size;
-    extra->root            = root_traced;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(sendtmptype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send   = sendtype->size();
-    extra->send_size = sendtmpcount * dt_size_send;
-    extra->datatype2 = encode_datatype(recvtype, &known);
-    int dt_size_recv = 1;
-    if (known == 0)
-      dt_size_recv = recvtype->size();
+    int rank         = simgrid::s4u::this_actor::get_pid();
+    int dt_size_recv = recvtype->is_replayable() ? 1 : recvtype->size();
+
+    std::vector<int>* trace_recvcounts = new std::vector<int>;
     if (comm->rank() == root) {
-      extra->recvcounts = xbt_new(int, size);
-      for (int i = 0; i < size; i++) // copy data to avoid bad free
-        extra->recvcounts[i] = recvcounts[i] * dt_size_recv;
+      for (int i = 0; i < comm->size(); i++) // copy data to avoid bad free
+        trace_recvcounts->push_back(recvcounts[i] * dt_size_recv);
     }
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::VarCollTIData(
+                           "gatherV", root,
+                           sendtmptype->is_replayable() ? sendtmpcount : sendtmpcount * sendtmptype->size(), nullptr,
+                           dt_size_recv, trace_recvcounts, simgrid::smpi::Datatype::encode(sendtmptype),
+                           simgrid::smpi::Datatype::encode(recvtype)));
 
     retval = simgrid::smpi::Colls::gatherv(sendtmpbuf, sendtmpcount, sendtmptype, recvbuf, recvcounts, displs, recvtype, root, comm);
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
 
   smpi_bench_begin();
@@ -190,7 +160,7 @@ int PMPI_Gatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recv
 int PMPI_Allgather(void *sendbuf, int sendcount, MPI_Datatype sendtype,
                    void *recvbuf, int recvcount, MPI_Datatype recvtype, MPI_Comm comm)
 {
-  int retval = 0;
+  int retval = MPI_SUCCESS;
 
   smpi_bench_end();
 
@@ -208,26 +178,16 @@ int PMPI_Allgather(void *sendbuf, int sendcount, MPI_Datatype sendtype,
       sendcount=recvcount;
       sendtype=recvtype;
     }
-    int rank               = smpi_process()->index();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_ALLGATHER;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(sendtype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send   = sendtype->size();
-    extra->send_size = sendcount * dt_size_send;
-    extra->datatype2 = encode_datatype(recvtype, &known);
-    int dt_size_recv = 1;
-    if (known == 0)
-      dt_size_recv   = recvtype->size();
-    extra->recv_size = recvcount * dt_size_recv;
-
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    int rank = simgrid::s4u::this_actor::get_pid();
+
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::CollTIData(
+                           "allGather", -1, -1.0, sendtype->is_replayable() ? sendcount : sendcount * sendtype->size(),
+                           recvtype->is_replayable() ? recvcount : recvcount * recvtype->size(),
+                           simgrid::smpi::Datatype::encode(sendtype), simgrid::smpi::Datatype::encode(recvtype)));
 
     simgrid::smpi::Colls::allgather(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, comm);
-    retval = MPI_SUCCESS;
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
   smpi_bench_begin();
   return retval;
@@ -255,31 +215,22 @@ int PMPI_Allgatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
       sendcount=recvcounts[comm->rank()];
       sendtype=recvtype;
     }
-    int rank               = smpi_process()->index();
-    int i                  = 0;
-    int size               = comm->size();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_ALLGATHERV;
-    extra->num_processes   = size;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(sendtype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send   = sendtype->size();
-    extra->send_size = sendcount * dt_size_send;
-    extra->datatype2 = encode_datatype(recvtype, &known);
-    int dt_size_recv = 1;
-    if (known == 0)
-      dt_size_recv    = recvtype->size();
-    extra->recvcounts = xbt_new(int, size);
-    for (i                 = 0; i < size; i++) // copy data to avoid bad free
-      extra->recvcounts[i] = recvcounts[i] * dt_size_recv;
-
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    int rank               = simgrid::s4u::this_actor::get_pid();
+    int dt_size_recv       = recvtype->is_replayable() ? 1 : recvtype->size();
+
+    std::vector<int>* trace_recvcounts = new std::vector<int>;
+    for (int i = 0; i < comm->size(); i++) // copy data to avoid bad free
+      trace_recvcounts->push_back(recvcounts[i] * dt_size_recv);
+
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::VarCollTIData(
+                           "allGatherV", -1, sendtype->is_replayable() ? sendcount : sendcount * sendtype->size(),
+                           nullptr, dt_size_recv, trace_recvcounts, simgrid::smpi::Datatype::encode(sendtype),
+                           simgrid::smpi::Datatype::encode(recvtype)));
 
     simgrid::smpi::Colls::allgatherv(sendbuf, sendcount, sendtype, recvbuf, recvcounts, displs, recvtype, comm);
     retval = MPI_SUCCESS;
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
 
   smpi_bench_begin();
@@ -307,27 +258,19 @@ int PMPI_Scatter(void *sendbuf, int sendcount, MPI_Datatype sendtype,
       recvtype  = sendtype;
       recvcount = sendcount;
     }
-    int rank               = smpi_process()->index();
-    int root_traced        = comm->group()->index(root);
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_SCATTER;
-    extra->root            = root_traced;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(sendtype, &known);
-    int dt_size_send       = 1;
-    if ((comm->rank() == root) && known == 0)
-      dt_size_send   = sendtype->size();
-    extra->send_size = sendcount * dt_size_send;
-    extra->datatype2 = encode_datatype(recvtype, &known);
-    int dt_size_recv = 1;
-    if (known == 0)
-      dt_size_recv   = recvtype->size();
-    extra->recv_size = recvcount * dt_size_recv;
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    int rank = simgrid::s4u::this_actor::get_pid();
+
+    TRACE_smpi_comm_in(
+        rank, __func__,
+        new simgrid::instr::CollTIData(
+            "scatter", root, -1.0,
+            (comm->rank() != root || sendtype->is_replayable()) ? sendcount : sendcount * sendtype->size(),
+            recvtype->is_replayable() ? recvcount : recvcount * recvtype->size(),
+            simgrid::smpi::Datatype::encode(sendtype), simgrid::smpi::Datatype::encode(recvtype)));
 
     simgrid::smpi::Colls::scatter(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, root, comm);
     retval = MPI_SUCCESS;
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
 
   smpi_bench_begin();
@@ -353,33 +296,24 @@ int PMPI_Scatterv(void *sendbuf, int *sendcounts, int *displs,
       recvtype  = sendtype;
       recvcount = sendcounts[comm->rank()];
     }
-    int rank               = smpi_process()->index();
-    int root_traced        = comm->group()->index(root);
-    int size               = comm->size();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_SCATTERV;
-    extra->num_processes   = size;
-    extra->root            = root_traced;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(sendtype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send = sendtype->size();
+    int rank               = simgrid::s4u::this_actor::get_pid();
+    int dt_size_send       = sendtype->is_replayable() ? 1 : sendtype->size();
+
+    std::vector<int>* trace_sendcounts = new std::vector<int>;
     if (comm->rank() == root) {
-      extra->sendcounts = xbt_new(int, size);
-      for (int i = 0; i < size; i++) // copy data to avoid bad free
-        extra->sendcounts[i] = sendcounts[i] * dt_size_send;
+      for (int i = 0; i < comm->size(); i++) // copy data to avoid bad free
+        trace_sendcounts->push_back(sendcounts[i] * dt_size_send);
     }
-    extra->datatype2 = encode_datatype(recvtype, &known);
-    int dt_size_recv = 1;
-    if (known == 0)
-      dt_size_recv   = recvtype->size();
-    extra->recv_size = recvcount * dt_size_recv;
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::VarCollTIData(
+                           "scatterV", root, dt_size_send, trace_sendcounts,
+                           recvtype->is_replayable() ? recvcount : recvcount * recvtype->size(), nullptr,
+                           simgrid::smpi::Datatype::encode(sendtype), simgrid::smpi::Datatype::encode(recvtype)));
 
     retval = simgrid::smpi::Colls::scatterv(sendbuf, sendcounts, displs, sendtype, recvbuf, recvcount, recvtype, root, comm);
 
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
 
   smpi_bench_begin();
@@ -397,24 +331,17 @@ int PMPI_Reduce(void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype,
   } else if (not datatype->is_valid() || op == MPI_OP_NULL) {
     retval = MPI_ERR_ARG;
   } else {
-    int rank               = smpi_process()->index();
-    int root_traced        = comm->group()->index(root);
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_REDUCE;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(datatype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send   = datatype->size();
-    extra->send_size = count * dt_size_send;
-    extra->root      = root_traced;
-
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    int rank = simgrid::s4u::this_actor::get_pid();
+
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::CollTIData("reduce", root, 0,
+                                                      datatype->is_replayable() ? count : count * datatype->size(), -1,
+                                                      simgrid::smpi::Datatype::encode(datatype), ""));
 
     simgrid::smpi::Colls::reduce(sendbuf, recvbuf, count, datatype, op, root, comm);
 
     retval = MPI_SUCCESS;
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
 
   smpi_bench_begin();
@@ -454,17 +381,12 @@ int PMPI_Allreduce(void *sendbuf, void *recvbuf, int count, MPI_Datatype datatyp
       sendtmpbuf = static_cast<char*>(xbt_malloc(count*datatype->get_extent()));
       simgrid::smpi::Datatype::copy(recvbuf, count, datatype,sendtmpbuf, count, datatype);
     }
-    int rank               = smpi_process()->index();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_ALLREDUCE;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(datatype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send   = datatype->size();
-    extra->send_size = count * dt_size_send;
-
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    int rank = simgrid::s4u::this_actor::get_pid();
+
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::CollTIData("allReduce", -1, 0,
+                                                      datatype->is_replayable() ? count : count * datatype->size(), -1,
+                                                      simgrid::smpi::Datatype::encode(datatype), ""));
 
     simgrid::smpi::Colls::allreduce(sendtmpbuf, recvbuf, count, datatype, op, comm);
 
@@ -472,7 +394,7 @@ int PMPI_Allreduce(void *sendbuf, void *recvbuf, int count, MPI_Datatype datatyp
       xbt_free(sendtmpbuf);
 
     retval = MPI_SUCCESS;
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
   }
 
   smpi_bench_begin();
@@ -492,21 +414,20 @@ int PMPI_Scan(void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype, MP
   } else if (op == MPI_OP_NULL) {
     retval = MPI_ERR_OP;
   } else {
-    int rank               = smpi_process()->index();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_SCAN;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(datatype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send   = datatype->size();
-    extra->send_size = count * dt_size_send;
-
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    int rank = simgrid::s4u::this_actor::get_pid();
+    if (sendbuf == MPI_IN_PLACE) {
+      sendtmpbuf = static_cast<void*>(xbt_malloc(count * datatype->size()));
+      memcpy(sendtmpbuf, recvbuf, count * datatype->size());
+    }
+    TRACE_smpi_comm_in(rank, __func__, new simgrid::instr::Pt2PtTIData(
+                                           "scan", -1, datatype->is_replayable() ? count : count * datatype->size(),
+                                           simgrid::smpi::Datatype::encode(datatype)));
 
-    retval = simgrid::smpi::Colls::scan(sendbuf, recvbuf, count, datatype, op, comm);
+    retval = simgrid::smpi::Colls::scan(sendtmpbuf, recvbuf, count, datatype, op, comm);
 
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
+    if (sendbuf == MPI_IN_PLACE)
+      xbt_free(sendtmpbuf);
   }
 
   smpi_bench_begin();
@@ -525,25 +446,20 @@ int PMPI_Exscan(void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype,
   } else if (op == MPI_OP_NULL) {
     retval = MPI_ERR_OP;
   } else {
-    int rank               = smpi_process()->index();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_EXSCAN;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(datatype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send   = datatype->size();
-    extra->send_size = count * dt_size_send;
+    int rank         = simgrid::s4u::this_actor::get_pid();
     void* sendtmpbuf = sendbuf;
     if (sendbuf == MPI_IN_PLACE) {
       sendtmpbuf = static_cast<void*>(xbt_malloc(count * datatype->size()));
       memcpy(sendtmpbuf, recvbuf, count * datatype->size());
     }
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+
+    TRACE_smpi_comm_in(rank, __func__, new simgrid::instr::Pt2PtTIData(
+                                           "exscan", -1, datatype->is_replayable() ? count : count * datatype->size(),
+                                           simgrid::smpi::Datatype::encode(datatype)));
 
     retval = simgrid::smpi::Colls::exscan(sendtmpbuf, recvbuf, count, datatype, op, comm);
 
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
     if (sendbuf == MPI_IN_PLACE)
       xbt_free(sendtmpbuf);
   }
@@ -566,35 +482,29 @@ int PMPI_Reduce_scatter(void *sendbuf, void *recvbuf, int *recvcounts, MPI_Datat
   } else if (recvcounts == nullptr) {
     retval = MPI_ERR_ARG;
   } else {
-    int rank               = smpi_process()->index();
-    int i                  = 0;
-    int size               = comm->size();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_REDUCE_SCATTER;
-    extra->num_processes   = size;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(datatype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send    = datatype->size();
-    extra->send_size  = 0;
-    extra->recvcounts = xbt_new(int, size);
+    int rank                           = simgrid::s4u::this_actor::get_pid();
+    std::vector<int>* trace_recvcounts = new std::vector<int>;
+    int dt_send_size                   = datatype->is_replayable() ? 1 : datatype->size();
     int totalcount    = 0;
-    for (i = 0; i < size; i++) { // copy data to avoid bad free
-      extra->recvcounts[i] = recvcounts[i] * dt_size_send;
+
+    for (int i = 0; i < comm->size(); i++) { // copy data to avoid bad free
+      trace_recvcounts->push_back(recvcounts[i] * dt_send_size);
       totalcount += recvcounts[i];
     }
+
     void* sendtmpbuf = sendbuf;
     if (sendbuf == MPI_IN_PLACE) {
       sendtmpbuf = static_cast<void*>(xbt_malloc(totalcount * datatype->size()));
       memcpy(sendtmpbuf, recvbuf, totalcount * datatype->size());
     }
 
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    TRACE_smpi_comm_in(rank, __func__, new simgrid::instr::VarCollTIData(
+                                           "reduceScatter", -1, dt_send_size, nullptr, -1, trace_recvcounts,
+                                           simgrid::smpi::Datatype::encode(datatype), ""));
 
     simgrid::smpi::Colls::reduce_scatter(sendtmpbuf, recvbuf, recvcounts, datatype, op, comm);
     retval = MPI_SUCCESS;
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
 
     if (sendbuf == MPI_IN_PLACE)
       xbt_free(sendtmpbuf);
@@ -621,35 +531,28 @@ int PMPI_Reduce_scatter_block(void *sendbuf, void *recvbuf, int recvcount,
   } else {
     int count = comm->size();
 
-    int rank               = smpi_process()->index();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_REDUCE_SCATTER;
-    extra->num_processes   = count;
-    int known              = 0;
-    extra->datatype1       = encode_datatype(datatype, &known);
-    int dt_size_send       = 1;
-    if (known == 0)
-      dt_size_send    = datatype->size();
-    extra->send_size  = 0;
-    extra->recvcounts = xbt_new(int, count);
-    for (int i             = 0; i < count; i++) // copy data to avoid bad free
-      extra->recvcounts[i] = recvcount * dt_size_send;
+    int rank                           = simgrid::s4u::this_actor::get_pid();
+    int dt_send_size                   = datatype->is_replayable() ? 1 : datatype->size();
+    std::vector<int>* trace_recvcounts = new std::vector<int>(recvcount * dt_send_size); // copy data to avoid bad free
+
     void* sendtmpbuf       = sendbuf;
     if (sendbuf == MPI_IN_PLACE) {
       sendtmpbuf = static_cast<void*>(xbt_malloc(recvcount * count * datatype->size()));
       memcpy(sendtmpbuf, recvbuf, recvcount * count * datatype->size());
     }
 
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::VarCollTIData("reduceScatter", -1, 0, nullptr, -1, trace_recvcounts,
+                                                         simgrid::smpi::Datatype::encode(datatype), ""));
 
-    int* recvcounts = static_cast<int*>(xbt_malloc(count * sizeof(int)));
+    int* recvcounts = new int[count];
     for (int i      = 0; i < count; i++)
       recvcounts[i] = recvcount;
     simgrid::smpi::Colls::reduce_scatter(sendtmpbuf, recvbuf, recvcounts, datatype, op, comm);
-    xbt_free(recvcounts);
+    delete[] recvcounts;
     retval = MPI_SUCCESS;
 
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
 
     if (sendbuf == MPI_IN_PLACE)
       xbt_free(sendtmpbuf);
@@ -670,10 +573,7 @@ int PMPI_Alltoall(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* rec
   } else if ((sendbuf != MPI_IN_PLACE && sendtype == MPI_DATATYPE_NULL) || recvtype == MPI_DATATYPE_NULL) {
     retval = MPI_ERR_TYPE;
   } else {
-    int rank               = smpi_process()->index();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_ALLTOALL;
-
+    int rank                 = simgrid::s4u::this_actor::get_pid();
     void* sendtmpbuf         = static_cast<char*>(sendbuf);
     int sendtmpcount         = sendcount;
     MPI_Datatype sendtmptype = sendtype;
@@ -684,23 +584,16 @@ int PMPI_Alltoall(void* sendbuf, int sendcount, MPI_Datatype sendtype, void* rec
       sendtmptype  = recvtype;
     }
 
-    int known        = 0;
-    extra->datatype1 = encode_datatype(sendtmptype, &known);
-    if (known == 0)
-      extra->send_size = sendtmpcount * sendtmptype->size();
-    else
-      extra->send_size = sendtmpcount;
-    extra->datatype2   = encode_datatype(recvtype, &known);
-    if (known == 0)
-      extra->recv_size = recvcount * recvtype->size();
-    else
-      extra->recv_size = recvcount;
-
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::CollTIData(
+                           "allToAll", -1, -1.0,
+                           sendtmptype->is_replayable() ? sendtmpcount : sendtmpcount * sendtmptype->size(),
+                           recvtype->is_replayable() ? recvcount : recvcount * recvtype->size(),
+                           simgrid::smpi::Datatype::encode(sendtmptype), simgrid::smpi::Datatype::encode(recvtype)));
 
     retval = simgrid::smpi::Colls::alltoall(sendtmpbuf, sendtmpcount, sendtmptype, recvbuf, recvcount, recvtype, comm);
 
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
 
     if (sendbuf == MPI_IN_PLACE)
       xbt_free(sendtmpbuf);
@@ -725,17 +618,12 @@ int PMPI_Alltoallv(void* sendbuf, int* sendcounts, int* senddisps, MPI_Datatype
              recvdisps == nullptr) {
     retval = MPI_ERR_ARG;
   } else {
-    int rank               = smpi_process()->index();
-    int i                  = 0;
+    int rank                           = simgrid::s4u::this_actor::get_pid();
     int size               = comm->size();
-    instr_extra_data extra = xbt_new0(s_instr_extra_data_t, 1);
-    extra->type            = TRACING_ALLTOALLV;
-    extra->send_size       = 0;
-    extra->recv_size       = 0;
-    extra->recvcounts      = xbt_new(int, size);
-    extra->sendcounts      = xbt_new(int, size);
-    int known              = 0;
-    extra->datatype2       = encode_datatype(recvtype, &known);
+    int send_size                      = 0;
+    int recv_size                      = 0;
+    std::vector<int>* trace_sendcounts = new std::vector<int>;
+    std::vector<int>* trace_recvcounts = new std::vector<int>;
     int dt_size_recv       = recvtype->size();
 
     void* sendtmpbuf         = static_cast<char*>(sendbuf);
@@ -743,9 +631,9 @@ int PMPI_Alltoallv(void* sendbuf, int* sendcounts, int* senddisps, MPI_Datatype
     int* sendtmpdisps        = senddisps;
     MPI_Datatype sendtmptype = sendtype;
     int maxsize              = 0;
-    for (i = 0; i < size; i++) { // copy data to avoid bad free
-      extra->recv_size += recvcounts[i] * dt_size_recv;
-      extra->recvcounts[i] = recvcounts[i] * dt_size_recv;
+    for (int i = 0; i < size; i++) { // copy data to avoid bad free
+      recv_size += recvcounts[i] * dt_size_recv;
+      trace_recvcounts->push_back(recvcounts[i] * dt_size_recv);
       if (((recvdisps[i] + recvcounts[i]) * dt_size_recv) > maxsize)
         maxsize = (recvdisps[i] + recvcounts[i]) * dt_size_recv;
     }
@@ -760,18 +648,21 @@ int PMPI_Alltoallv(void* sendbuf, int* sendcounts, int* senddisps, MPI_Datatype
       sendtmptype = recvtype;
     }
 
-    extra->datatype1 = encode_datatype(sendtmptype, &known);
     int dt_size_send = sendtmptype->size();
 
-    for (i = 0; i < size; i++) { // copy data to avoid bad free
-      extra->send_size += sendtmpcounts[i] * dt_size_send;
-      extra->sendcounts[i] = sendtmpcounts[i] * dt_size_send;
+    for (int i = 0; i < size; i++) { // copy data to avoid bad free
+      send_size += sendtmpcounts[i] * dt_size_send;
+      trace_sendcounts->push_back(sendtmpcounts[i] * dt_size_send);
     }
-    extra->num_processes = size;
-    TRACE_smpi_collective_in(rank, __FUNCTION__, extra);
+
+    TRACE_smpi_comm_in(rank, __func__,
+                       new simgrid::instr::VarCollTIData("allToAllV", -1, send_size, trace_sendcounts, recv_size,
+                                                         trace_recvcounts, simgrid::smpi::Datatype::encode(sendtype),
+                                                         simgrid::smpi::Datatype::encode(recvtype)));
+
     retval = simgrid::smpi::Colls::alltoallv(sendtmpbuf, sendtmpcounts, sendtmpdisps, sendtmptype, recvbuf, recvcounts,
                                     recvdisps, recvtype, comm);
-    TRACE_smpi_collective_out(rank, __FUNCTION__);
+    TRACE_smpi_comm_out(rank);
 
     if (sendbuf == MPI_IN_PLACE) {
       xbt_free(sendtmpbuf);
@@ -783,5 +674,3 @@ int PMPI_Alltoallv(void* sendbuf, int* sendcounts, int* senddisps, MPI_Datatype
   smpi_bench_begin();
   return retval;
 }
-
-}