portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-06-21 17:22:03 +01:00
Code Releases Activity

Simplify

Browse Source
This commit is contained in:
Peter Boyle
2025-06-13 17:32:05 +02:00
parent d88750e6b6
commit f2e9a68825
1 changed files with 1 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
Grid/communicator/SharedMemoryMPI.cc
View File

@ -543,37 +543,8 @@ void GlobalSharedMemory::SharedMemoryAllocate(uint64_t bytes, int flags)
/////////////////////////////////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////////////////////////////
#ifndef ACCELERATOR_AWARE_MPI #ifndef ACCELERATOR_AWARE_MPI
// printf("Host buffer allocate for GPU non-aware MPI\n"); // printf("Host buffer allocate for GPU non-aware MPI\n");
#if 0
HostCommBuf= acceleratorAllocHost(bytes);
#else
HostCommBuf= malloc(bytes); /// CHANGE THIS TO malloc_host HostCommBuf= malloc(bytes); /// CHANGE THIS TO malloc_host
#if 0 // acceleratorPin(HostCommBuf,bytes);
#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
#endif #endif
ShmCommBuf = acceleratorAllocDevice(bytes); ShmCommBuf = acceleratorAllocDevice(bytes);
if (ShmCommBuf == (void *)NULL ) { if (ShmCommBuf == (void *)NULL ) {