Update copyright lines for 2022.

[simgrid.git] / src / smpi / colls / gather / gather-ompi.cpp

diff --git a/src/smpi/colls/gather/gather-ompi.cpp b/src/smpi/colls/gather/gather-ompi.cpp
index 3e4e65c..45dfc3a 100644 (file)
--- a/src/smpi/colls/gather/gather-ompi.cpp
+++ b/src/smpi/colls/gather/gather-ompi.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2013-2017. The SimGrid Team.
+/* Copyright (c) 2013-2022. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
@@ -22,11 +22,11 @@
 #include "../coll_tuned_topo.hpp"
 #include "../colls_private.hpp"
 
-namespace simgrid{
-namespace smpi{
+namespace simgrid {
+namespace smpi {
 
-int Coll_gather_ompi_binomial::gather(void* sbuf, int scount, MPI_Datatype sdtype, void* rbuf, int rcount,
-                                      MPI_Datatype rdtype, int root, MPI_Comm comm)
+int gather__ompi_binomial(const void* sbuf, int scount, MPI_Datatype sdtype, void* rbuf, int rcount,
+                          MPI_Datatype rdtype, int root, MPI_Comm comm)
 {
     int line = -1;
     int i;
@@ -34,8 +34,9 @@ int Coll_gather_ompi_binomial::gather(void* sbuf, int scount, MPI_Datatype sdtyp
     int vrank;
     int size;
     int total_recv = 0;
-    char *ptmp     = NULL;
-    char *tempbuf  = NULL;
+    unsigned char* ptmp    = nullptr;
+    unsigned char* tempbuf = nullptr;
+    const unsigned char* src_buf;
     int err;
     ompi_coll_tree_t* bmtree;
     MPI_Status status;
@@ -63,7 +64,7 @@ int Coll_gather_ompi_binomial::gather(void* sbuf, int scount, MPI_Datatype sdtyp
         rdtype->extent(&rtrue_lb, &rtrue_extent);
         if (0 == root) {
           /* root on 0, just use the recv buffer */
-          ptmp = (char*)rbuf;
+          ptmp = static_cast<unsigned char*>(rbuf);
           if (sbuf != MPI_IN_PLACE) {
             err = Datatype::copy(sbuf, scount, sdtype, ptmp, rcount, rdtype);
             if (MPI_SUCCESS != err) {
@@ -74,8 +75,8 @@ int Coll_gather_ompi_binomial::gather(void* sbuf, int scount, MPI_Datatype sdtyp
         } else {
           /* root is not on 0, allocate temp buffer for recv,
            * rotate data at the end */
-          tempbuf = (char*)smpi_get_tmp_recvbuffer(rtrue_extent + (rcount * size - 1) * rextent);
-          if (NULL == tempbuf) {
+          tempbuf = smpi_get_tmp_recvbuffer(rtrue_extent + (rcount * size - 1) * rextent);
+          if (nullptr == tempbuf) {
             err  = MPI_ERR_OTHER;
             line = __LINE__;
             goto err_hndl;
@@ -99,12 +100,13 @@ int Coll_gather_ompi_binomial::gather(void* sbuf, int scount, MPI_Datatype sdtyp
           }
         }
         total_recv = rcount;
+        src_buf    = ptmp;
     } else if (!(vrank % 2)) {
       /* other non-leaf nodes, allocate temp buffer for data received from
        * children, the most we need is half of the total data elements due
-       * to the property of binimoal tree */
-      tempbuf = (char*)smpi_get_tmp_sendbuffer(strue_extent + (scount * size - 1) * sextent);
-      if (NULL == tempbuf) {
+       * to the property of binomial tree */
+      tempbuf = smpi_get_tmp_sendbuffer(strue_extent + (scount * size - 1) * sextent);
+      if (nullptr == tempbuf) {
         err  = MPI_ERR_OTHER;
         line = __LINE__;
         goto err_hndl;
@@ -124,11 +126,12 @@ int Coll_gather_ompi_binomial::gather(void* sbuf, int scount, MPI_Datatype sdtyp
       rcount     = scount;
       rextent    = sextent;
       total_recv = rcount;
+      src_buf    = ptmp;
     } else {
       /* leaf nodes, no temp buffer needed, use sdtype,scount as
        * rdtype,rdcount since they are ignored on non-root procs */
-      ptmp       = (char*)sbuf;
       total_recv = scount;
+      src_buf    = static_cast<const unsigned char*>(sbuf);
     }
 
     if (!(vrank % 2)) {
@@ -156,7 +159,7 @@ int Coll_gather_ompi_binomial::gather(void* sbuf, int scount, MPI_Datatype sdtyp
       /* all nodes except root send to parents */
       XBT_DEBUG("smpi_coll_tuned_gather_ompi_binomial rank %d send %d count %d\n", rank, bmtree->tree_prev, total_recv);
 
-      Request::send(ptmp, total_recv, sdtype, bmtree->tree_prev, COLL_TAG_GATHER, comm);
+      Request::send(src_buf, total_recv, sdtype, bmtree->tree_prev, COLL_TAG_GATHER, comm);
   }
     if (rank == root) {
       if (root != 0) {
@@ -185,11 +188,11 @@ int Coll_gather_ompi_binomial::gather(void* sbuf, int scount, MPI_Datatype sdtyp
     return MPI_SUCCESS;
 
  err_hndl:
-    if (NULL != tempbuf)
-      smpi_free_tmp_buffer(tempbuf);
+   if (nullptr != tempbuf)
+     smpi_free_tmp_buffer(tempbuf);
 
-    XBT_DEBUG("%s:%4d\tError occurred %d, rank %2d", __FILE__, line, err, rank);
-    return err;
+   XBT_DEBUG("%s:%4d\tError occurred %d, rank %2d", __FILE__, line, err, rank);
+   return err;
 }
 
 /*
@@ -199,12 +202,12 @@ int Coll_gather_ompi_binomial::gather(void* sbuf, int scount, MPI_Datatype sdtyp
  *  Accepts:  - same arguments as MPI_Gather(), first segment size
  *  Returns:  - MPI_SUCCESS or error code
  */
-int Coll_gather_ompi_linear_sync::gather(void *sbuf, int scount,
-                                         MPI_Datatype sdtype,
-                                         void *rbuf, int rcount,
-                                         MPI_Datatype rdtype,
-                                         int root,
-                                         MPI_Comm comm)
+int gather__ompi_linear_sync(const void *sbuf, int scount,
+                             MPI_Datatype sdtype,
+                             void *rbuf, int rcount,
+                             MPI_Datatype rdtype,
+                             int root,
+                             MPI_Comm comm)
 {
     int i;
     int ret, line;
@@ -247,7 +250,7 @@ int Coll_gather_ompi_linear_sync::gather(void *sbuf, int scount,
        first_segment_count = scount;
        COLL_TUNED_COMPUTED_SEGCOUNT((size_t)first_segment_size, typelng, first_segment_count);
 
-       Request::recv(sbuf, 0, MPI_BYTE, root, COLL_TAG_GATHER, comm, MPI_STATUS_IGNORE);
+       Request::recv(nullptr, 0, MPI_BYTE, root, COLL_TAG_GATHER, comm, MPI_STATUS_IGNORE);
 
        Request::send(sbuf, first_segment_count, sdtype, root, COLL_TAG_GATHER, comm);
 
@@ -267,11 +270,12 @@ int Coll_gather_ompi_linear_sync::gather(void *sbuf, int scount,
 */
       char* ptmp;
       MPI_Request first_segment_req;
-      MPI_Request* reqs = new (std::nothrow) MPI_Request[size];
-      if (NULL == reqs) {
+      auto* reqs = new (std::nothrow) MPI_Request[size];
+      if (nullptr == reqs) {
         ret  = -1;
         line = __LINE__;
-        goto error_hndl; }
+        goto error_hndl;
+      }
 
         typelng=rdtype->size();
         rdtype->extent(&lb, &extent);
@@ -352,8 +356,8 @@ int Coll_gather_ompi_linear_sync::gather(void *sbuf, int scount,
  *  Accepts:  - same arguments as MPI_Gather()
  *  Returns:  - MPI_SUCCESS or error code
  */
-int Coll_gather_ompi_basic_linear::gather(void* sbuf, int scount, MPI_Datatype sdtype, void* rbuf, int rcount,
-                                          MPI_Datatype rdtype, int root, MPI_Comm comm)
+int gather__ompi_basic_linear(const void* sbuf, int scount, MPI_Datatype sdtype, void* rbuf, int rcount,
+                              MPI_Datatype rdtype, int root, MPI_Comm comm)
 {
     int i;
     int err;