Merge pull request open-mpi#12551 from bosilca/fix/unused_tuned_alltoall_mca_params

Mark unused MCA params as deprecated.

Author: bosilca

ompi/mca/coll/tuned/coll_tuned.h

@@ -6,6 +6,7 @@
  * Copyright (c) 2015-2018 Research Organization for Information Science
  *                         and Technology (RIST).  All rights reserved.
  * Copyright (c) 2019      Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2024      NVIDIA Corporation.  All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -37,10 +38,6 @@ extern char* ompi_coll_tuned_dynamic_rules_filename;
 extern int   ompi_coll_tuned_init_tree_fanout;
 extern int   ompi_coll_tuned_init_chain_fanout;
 extern int   ompi_coll_tuned_init_max_requests;
-extern int   ompi_coll_tuned_alltoall_small_msg;
-extern int   ompi_coll_tuned_alltoall_intermediate_msg;
-extern int   ompi_coll_tuned_alltoall_large_msg;
-extern int   ompi_coll_tuned_alltoall_min_procs;
 extern int   ompi_coll_tuned_alltoall_max_requests;
 extern int   ompi_coll_tuned_scatter_intermediate_msg;
 extern int   ompi_coll_tuned_scatter_large_msg;

ompi/mca/coll/tuned/coll_tuned_alltoall_decision.c

@@ -5,6 +5,7 @@
  *                         reserved.
  * Copyright (c) 2015      Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
+ * Copyright (c) 2024      NVIDIA Corporation.  All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -115,21 +116,22 @@ int ompi_coll_tuned_alltoall_intra_check_forced_init (coll_tuned_force_algorithm
                                       MCA_BASE_VAR_SCOPE_ALL,
                                       &coll_tuned_alltoall_chain_fanout);
 
+    int deprecated_mca_params = -1;
     (void) mca_base_component_var_register(&mca_coll_tuned_component.super.collm_version,
                                            "alltoall_large_msg",
                                            "use pairwise exchange algorithm for messages larger than this value",
-                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
+                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, MCA_BASE_VAR_FLAG_DEPRECATED,
                                            OPAL_INFO_LVL_6,
                                            MCA_BASE_VAR_SCOPE_READONLY,
-                                           &ompi_coll_tuned_alltoall_large_msg);
+                                           &deprecated_mca_params);
 
     (void) mca_base_component_var_register(&mca_coll_tuned_component.super.collm_version,
                                            "alltoall_min_procs",
                                            "use pairwise exchange algorithm for communicators larger than this value",
-                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
+                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, MCA_BASE_VAR_FLAG_DEPRECATED,
                                            OPAL_INFO_LVL_6,
                                            MCA_BASE_VAR_SCOPE_READONLY,
-                                           &ompi_coll_tuned_alltoall_min_procs);
+                                           &deprecated_mca_params);
 
     mca_param_indices->max_requests_param_index =
       mca_base_component_var_register(&mca_coll_tuned_component.super.collm_version,

ompi/mca/coll/tuned/coll_tuned_component.c

@@ -17,6 +17,7 @@
  * Copyright (c) 2015-2018 Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
  * Copyright (c) 2019      Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2024      NVIDIA Corporation.  All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -55,14 +56,10 @@ char* ompi_coll_tuned_dynamic_rules_filename = (char*) NULL;
 int   ompi_coll_tuned_init_tree_fanout = 4;
 int   ompi_coll_tuned_init_chain_fanout = 4;
 int   ompi_coll_tuned_init_max_requests = 128;
-int   ompi_coll_tuned_alltoall_small_msg = 200;
-int   ompi_coll_tuned_alltoall_intermediate_msg = 3000;
 
 /* Set it to the same value as intermediate msg by default, so it does not affect
  * default algorithm selection. Changing this value will force using linear with
  * sync algorithm on certain message sizes. */
-int   ompi_coll_tuned_alltoall_large_msg = 3000;
-int   ompi_coll_tuned_alltoall_min_procs = 0; /* disable by default */
 int   ompi_coll_tuned_alltoall_max_requests  = 0; /* no limit for alltoall by default */
 
 /* Disable by default */
@@ -156,23 +153,22 @@ static int tuned_register(void)
                                            MCA_BASE_VAR_SCOPE_READONLY,
                                            &ompi_coll_tuned_init_chain_fanout);
 
-    ompi_coll_tuned_alltoall_small_msg = 200;
+    int deprecated_mca_params = -1;
     (void) mca_base_component_var_register(&mca_coll_tuned_component.super.collm_version,
                                            "alltoall_small_msg",
                                            "threshold (if supported) to decide if small MSGs alltoall algorithm will be used",
-                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
+                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, MCA_BASE_VAR_FLAG_DEPRECATED,
                                            OPAL_INFO_LVL_6,
                                            MCA_BASE_VAR_SCOPE_READONLY,
-                                           &ompi_coll_tuned_alltoall_small_msg);
+                                           &deprecated_mca_params);
 
-    ompi_coll_tuned_alltoall_intermediate_msg = 3000;
     (void) mca_base_component_var_register(&mca_coll_tuned_component.super.collm_version,
                                            "alltoall_intermediate_msg",
                                            "threshold (if supported) to decide if intermediate MSGs alltoall algorithm will be used",
-                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, 0,
+                                           MCA_BASE_VAR_TYPE_INT, NULL, 0, MCA_BASE_VAR_FLAG_DEPRECATED,
                                            OPAL_INFO_LVL_6,
                                            MCA_BASE_VAR_SCOPE_READONLY,
-                                           &ompi_coll_tuned_alltoall_intermediate_msg);
+                                           &deprecated_mca_params);
 
     (void) mca_base_component_var_register(&mca_coll_tuned_component.super.collm_version,
                                            "use_dynamic_rules",