remove the LCI1 backend

Author: JiakunYan

.github/workflows/ci-lci1.yml

@@ -33,13 +33,6 @@ set(RECONVERSE_AUTOFETCH_LCI2_TAG
     "85dc99f3b32cfc8b3b4b0e0590ee445282964b57"
     CACHE STRING "The tag to fetch for LCIv2") # master branch as of 2025-04-17
 
-option(RECONVERSE_TRY_ENABLE_COMM_LCI1 "whether to enable the LCIv1 backend" OFF)
-option(RECONVERSE_AUTOFETCH_LCI1
-       "whether to autofetch LCIv1 if LCI1 cannot be found" OFF)
-set(RECONVERSE_AUTOFETCH_LCI1_TAG
-    "ad1c43e5ff28bb2cfc8a300615f4d502b7bce31f"
-    CACHE STRING "The tag to fetch for LCIv1") # master branch as of 2025-04-17
-
 option(SPANTREE "whether to enable spanning tree collectives" ON)
 option(CMK_SMP "whether to enable SMP support" ON)
 

CMakeLists.txt

@@ -61,57 +61,4 @@ if(RECONVERSE_TRY_ENABLE_COMM_LCI2)
         "LCI2 is not found. The LCI2 backend is not enabled. Try setting RECONVERSE_AUTOFETCH_LCI2=ON to fetch LCIv2 automatically."
     )
   endif()
-endif()
-
-# LCI1
-if(NOT RECONVERSE_ENABLE_COMM_LCI2 AND RECONVERSE_TRY_ENABLE_COMM_LCI1)
-  # Try to find LCIv1 externally
-  find_package(
-    LCI
-    CONFIG
-    HINTS
-    ${LCI_ROOT}
-    $ENV{LCI_ROOT}
-    PATH_SUFFIXES
-    lib/cmake
-    lib64/cmake)
-  if(LCI_FOUND
-     AND NOT LCI_WITH_LCT_ONLY
-     AND LCI_VERSION VERSION_LESS 2.0.0)
-    set(RECONVERSE_ENABLE_COMM_LCI1 ON)
-  endif()
-
-  if(NOT RECONVERSE_ENABLE_COMM_LCI1 AND RECONVERSE_AUTOFETCH_LCI1)
-    if(FETCHCONTENT_SOURCE_DIR_LCI)
-      message(
-        STATUS
-          "LCI will be include through FetchContent from ${FETCHCONTENT_SOURCE_DIR_LCI}"
-      )
-    else()
-      message(
-        STATUS
-          "LCI will be include throught FetchContent from GIT_TAG ${RECONVERSE_AUTOFETCH_LCI1_TAG}"
-      )
-    endif()
-    include(FetchContent)
-    FetchContent_Declare(
-      lci
-      GIT_REPOSITORY https://github.com/uiuc-hpc/lci.git
-      GIT_TAG ${RECONVERSE_AUTOFETCH_LCI1_TAG})
-    FetchContent_MakeAvailable(lci)
-    set(RECONVERSE_ENABLE_COMM_LCI1 ON)
-  endif()
-
-  if(RECONVERSE_ENABLE_COMM_LCI1)
-    message(STATUS "LCIv1 found. Enabling LCIv1 backend.")
-    message(WARNING "LCIv1 is deprecated. Please use LCIv2 instead.")
-    target_link_libraries(reconverse PRIVATE LCI::LCI)
-    target_sources(reconverse PRIVATE lci1/comm_backend_lci1.cpp)
-    set(RECONVERSE_ENABLE_COMM_LCI1 ON PARENT_SCOPE)
-  else()
-    message(
-      WARNING
-        "LCIv1 is not found. The LCIv1 backend is not enabled. Try setting RECONVERSE_AUTOFETCH_LCI1=ON to fetch LCIv1 automatically."
-    )
-  endif()
-endif()
+endif()

src/comm_backend/CMakeLists.txt

@@ -9,8 +9,6 @@ int gMyNodeID = 0;
 void init(int *argc, char ***argv) {
 #ifdef RECONVERSE_ENABLE_COMM_LCI2
   gCommBackend = new CommBackendLCI2();
-#elif defined(RECONVERSE_ENABLE_COMM_LCI1)
-  gCommBackend = new CommBackendLCI1();
 #endif
   if (gCommBackend == nullptr) {
     return;

src/comm_backend/comm_backend_internal.cpp

@@ -38,8 +38,5 @@ class CommBackendBase {
 #ifdef RECONVERSE_ENABLE_COMM_LCI2
 #include "comm_backend/lci2/comm_backend_lci2.h"
 #endif
-#ifdef RECONVERSE_ENABLE_COMM_LCI1
-#include "comm_backend/lci1/comm_backend_lci1.h"
-#endif
 
 #endif // COMM_BACKEND_INTERNAL_H

src/comm_backend/comm_backend_internal.h

@@ -2,7 +2,6 @@
 #define CONVERSE_CONFIG_H
 
 #cmakedefine RECONVERSE_ENABLE_COMM_LCI2
-#cmakedefine RECONVERSE_ENABLE_COMM_LCI1
 #cmakedefine SPANTREE
 #cmakedefine CMK_SMP