portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-12-22 05:34:30 +00:00
Code Releases Activity

Hypercube defaults to on if HPE detected, but override to off possible

Browse Source
This commit is contained in:
Peter Boyle
2019-07-20 16:06:16 +01:00
parent ce8b247426
commit 1c096626cb
4 changed files with 19 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
Grid/communicator/SharedMemoryMPI.cc
View File

@@ -36,6 +36,7 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
NAMESPACE_BEGIN(Grid);
#define header "SharedMemoryMpi: "
/*Construct from an MPI communicator*/
int GlobalSharedMemory::HPEhypercube = 1;
void GlobalSharedMemory::Init(Grid_MPI_Comm comm)
{
assert(_ShmSetup==0);
@@ -152,8 +153,8 @@ void GlobalSharedMemory::OptimalCommunicator(const Coordinate &processors,Grid_M
gethostname(name,namelen);
int nscan = sscanf(name,"r%di%dn%d",&R,&I,&N) ;
if(nscan==3) OptimalCommunicatorHypercube(processors,optimal_comm);
else OptimalCommunicatorSharedMemory(processors,optimal_comm);
if(nscan==3 && HPEhypercube ) OptimalCommunicatorHypercube(processors,optimal_comm);
else OptimalCommunicatorSharedMemory(processors,optimal_comm);
}
void GlobalSharedMemory::OptimalCommunicatorHypercube(const Coordinate &processors,Grid_MPI_Comm & optimal_comm)
{