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mpi, mpi3, shmem all compile.

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mpi, mpi3 pass single node multi-rank
This commit is contained in:
azusayamaguchi
2016-10-24 23:45:31 +01:00
parent b6a65059a2
commit b94478fa51
6 changed files with 49 additions and 85 deletions
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61
lib/communicator/Communicator_shmem.cc
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@ -44,13 +44,16 @@ namespace Grid {
///////////////////////////////////////////////////////////////////////////////////////////////////
// Info that is setup once and indept of cartesian layout
///////////////////////////////////////////////////////////////////////////////////////////////////
int CartesianCommunicator::ShmRank;
int CartesianCommunicator::ShmSize;
int CartesianCommunicator::GroupRank;
int CartesianCommunicator::GroupSize;
int CartesianCommunicator::WorldRank;
int CartesianCommunicator::WorldSize;
int CartesianCommunicator::Slave;
typedef struct HandShake_t {
uint64_t seq_local;
uint64_t seq_remote;
} HandShake;
static Vector< HandShake > XConnections;
static Vector< HandShake > RConnections;
void CartesianCommunicator::Init(int *argc, char ***argv) {
shmem_init();
@ -62,37 +65,17 @@ void CartesianCommunicator::Init(int *argc, char ***argv) {
RConnections[pe].seq_local = 0;
RConnections[pe].seq_remote= 0;
}
WorldSize = shmem_n_pes();
WorldRank = shmem_my_pe();
ShmRank=0;
ShmSize=1;
GroupRank=WorldRank;
GroupSize=WorldSize;
Slave =0;
shmem_barrier_all();
ShmInitGeneric();
}
// Should error check all MPI calls.
void CartesianCommunicator::Init(int *argc, char ***argv) {
int flag;
MPI_Initialized(&flag); // needed to coexist with other libs apparently
if ( !flag ) {
MPI_Init(argc,argv);
MPI_Comm_dup (MPI_COMM_WORLD,&communicator_world);
MPI_Comm_rank(communicator_world,&_WorldRank);
MPI_Comm_size(communicator_world,&_WorldSize);
_ShmRank=0;
_ShmSize=1;
_GroupRank=_WorldRank;
_GroupSize=_WorldSize;
_Slave =0;
}
}
typedef struct HandShake_t {
uint64_t seq_local;
uint64_t seq_remote;
} HandShake;
static Vector< HandShake > XConnections;
static Vector< HandShake > RConnections;
CartesianCommunicator::CartesianCommunicator(const std::vector<int> &processors)
{
_ndimension = processors.size();
@ -261,12 +244,9 @@ void CartesianCommunicator::SendRecvPacket(void *xmit,
if ( _processor == sender ) {
printf("Sender SHMEM pt2pt %d -> %d\n",sender,receiver);
// Check he has posted a receive
while(SendSeq->seq_remote == SendSeq->seq_local);
printf("Sender receive %d posted\n",sender,receiver);
// Advance our send count
seq = ++(SendSeq->seq_local);
@ -275,26 +255,19 @@ void CartesianCommunicator::SendRecvPacket(void *xmit,
shmem_putmem(recv,xmit,bytes,receiver);
shmem_fence();
printf("Sender sent payload %d\n",seq);
//Notify him we're done
shmem_putmem((void *)&(RecvSeq->seq_remote),&seq,sizeof(seq),receiver);
shmem_fence();
printf("Sender ringing door bell %d\n",seq);
}
if ( _processor == receiver ) {
printf("Receiver SHMEM pt2pt %d->%d\n",sender,receiver);
// Post a receive
seq = ++(RecvSeq->seq_local);
shmem_putmem((void *)&(SendSeq->seq_remote),&seq,sizeof(seq),sender);
printf("Receiver Opening letter box %d\n",seq);
// Now wait until he has advanced our reception counter
while(RecvSeq->seq_remote != RecvSeq->seq_local);
printf("Receiver Got the mail %d\n",seq);
}
}