portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-08-11 08:47:05 +01:00
Code Releases Activity

Comms improvements

Browse Source
This commit is contained in:
paboyle
2016-11-01 11:35:43 +00:00
parent b1508e4124
commit 791cb050c8
25 changed files with 898 additions and 287 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
lib/communicator/Communicator_mpi3.cc
View File

@@ -30,12 +30,18 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
namespace Grid {
///////////////////////////////////////////////////////////////////////////////////////////////////
// Info that is setup once and indept of cartesian layout
///////////////////////////////////////////////////////////////////////////////////////////////////
int CartesianCommunicator::ShmSetup = 0;
int CartesianCommunicator::ShmRank;
int CartesianCommunicator::ShmSize;
int CartesianCommunicator::GroupRank;
int CartesianCommunicator::GroupSize;
int CartesianCommunicator::WorldRank;
int CartesianCommunicator::WorldSize;
MPI_Comm CartesianCommunicator::communicator_world;
MPI_Comm CartesianCommunicator::ShmComm;
MPI_Win CartesianCommunicator::ShmWindow;
@@ -97,15 +103,15 @@ void CartesianCommunicator::Init(int *argc, char ***argv) {
std::vector<int> world_ranks(WorldSize);
GroupRanks.resize(WorldSize);
MyGroup.resize(ShmSize);
for(int r=0;r<WorldSize;r++) world_ranks[r]=r;
MPI_Group_translate_ranks (WorldGroup,WorldSize,&world_ranks[0],ShmGroup, &GroupRanks[0]);
///////////////////////////////////////////////////////////////////
// Identify who is in my group and noninate the leader
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
int g=0;
MyGroup.resize(ShmSize);
for(int rank=0;rank<WorldSize;rank++){
if(GroupRanks[rank]!=MPI_UNDEFINED){
assert(g<ShmSize);