From f2e9a6882502360e676374b7464a5f7c948173da Mon Sep 17 00:00:00 2001
From: Peter Boyle <paboyle@ph.ed.ac.uk>
Date: Fri, 13 Jun 2025 17:32:05 +0200
Subject: [PATCH] Simplify

---
 Grid/communicator/SharedMemoryMPI.cc | 31 +---------------------------
 1 file changed, 1 insertion(+), 30 deletions(-)

diff --git a/Grid/communicator/SharedMemoryMPI.cc b/Grid/communicator/SharedMemoryMPI.cc
index b5fd4197..86638dfa 100644
--- a/Grid/communicator/SharedMemoryMPI.cc
+++ b/Grid/communicator/SharedMemoryMPI.cc
@@ -543,37 +543,8 @@ void GlobalSharedMemory::SharedMemoryAllocate(uint64_t bytes, int flags)
   ///////////////////////////////////////////////////////////////////////////////////////////////////////////
 #ifndef ACCELERATOR_AWARE_MPI
   // printf("Host buffer allocate for GPU non-aware MPI\n");
-#if 0
-  HostCommBuf= acceleratorAllocHost(bytes);
-#else 
   HostCommBuf= malloc(bytes); /// CHANGE THIS TO malloc_host
-#if 0
-  #warning "Moving host buffers to specific NUMA domain"
-  int numa;
-  char *numa_name=(char *)getenv("MPI_BUF_NUMA");
-  if(numa_name) {
-    unsigned long page_size = sysconf(_SC_PAGESIZE);
-    numa = atoi(numa_name);
-    unsigned long page_count = bytes/page_size;
-    std::vector<void *> pages(page_count);
-    std::vector<int>    nodes(page_count,numa);
-    std::vector<int>    status(page_count,-1);
-    for(unsigned long p=0;p<page_count;p++){
-      pages[p] =(void *) ((uint64_t) HostCommBuf + p*page_size);
-    }
-    int ret = move_pages(0,
-			 page_count,
-			 &pages[0],
-			 &nodes[0],
-			 &status[0],
-			 MPOL_MF_MOVE);
-    printf("Host buffer move to numa domain %d : move_pages returned %d\n",numa,ret);
-    if (ret) perror(" move_pages failed for reason:");
-  }
-#endif  
-  acceleratorPin(HostCommBuf,bytes);
-#endif  
-
+  //  acceleratorPin(HostCommBuf,bytes);
 #endif  
   ShmCommBuf = acceleratorAllocDevice(bytes);
   if (ShmCommBuf == (void *)NULL ) {