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Experimental: Multiple communicators to see if we can avoid thread locks in --enable-comms=mpit

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paboyle
2017-06-24 23:10:24 +01:00
parent 869b99ec1e
commit 54e94360ad
13 changed files with 139 additions and 90 deletions
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27
benchmarks/Benchmark_comms.cc
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@ -68,7 +68,7 @@ int main (int argc, char ** argv)
int Nloop=100;
int nmu=0;
int maxlat=24;
int maxlat=32;
for(int mu=0;mu<Nd;mu++) if (mpi_layout[mu]>1) nmu++;
std::cout << GridLogMessage << "Number of iterations to average: "<< Nloop << std::endl;
@ -80,7 +80,7 @@ int main (int argc, char ** argv)
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
header();
for(int lat=4;lat<=maxlat;lat+=4){
for(int Ls=8;Ls<=32;Ls*=2){
for(int Ls=8;Ls<=8;Ls*=2){
std::vector<int> latt_size ({lat*mpi_layout[0],
lat*mpi_layout[1],
@ -163,7 +163,7 @@ int main (int argc, char ** argv)
header();
for(int lat=4;lat<=maxlat;lat+=4){
for(int Ls=8;Ls<=32;Ls*=2){
for(int Ls=8;Ls<=8;Ls*=2){
std::vector<int> latt_size ({lat,lat,lat,lat});
@ -249,7 +249,7 @@ int main (int argc, char ** argv)
header();
for(int lat=4;lat<=maxlat;lat+=4){
for(int Ls=8;Ls<=32;Ls*=2){
for(int Ls=8;Ls<=8;Ls*=2){
std::vector<int> latt_size ({lat*mpi_layout[0],
lat*mpi_layout[1],
@ -299,7 +299,7 @@ int main (int argc, char ** argv)
xmit_to_rank,
(void *)&rbuf[mu][0],
recv_from_rank,
bytes);
bytes,mu);
comm_proc = mpi_layout[mu]-1;
@ -310,11 +310,11 @@ int main (int argc, char ** argv)
xmit_to_rank,
(void *)&rbuf[mu+4][0],
recv_from_rank,
bytes);
bytes,mu+4);
}
}
Grid.StencilSendToRecvFromComplete(requests);
Grid.StencilSendToRecvFromComplete(requests,0);
Grid.Barrier();
double stop=usecond();
t_time[i] = stop-start; // microseconds
@ -346,7 +346,7 @@ int main (int argc, char ** argv)
header();
for(int lat=4;lat<=maxlat;lat+=4){
for(int Ls=8;Ls<=32;Ls*=2){
for(int Ls=8;Ls<=8;Ls*=2){
std::vector<int> latt_size ({lat*mpi_layout[0],
lat*mpi_layout[1],
@ -393,8 +393,8 @@ int main (int argc, char ** argv)
xmit_to_rank,
(void *)&rbuf[mu][0],
recv_from_rank,
bytes);
Grid.StencilSendToRecvFromComplete(requests);
bytes,mu);
Grid.StencilSendToRecvFromComplete(requests,mu);
requests.resize(0);
comm_proc = mpi_layout[mu]-1;
@ -406,8 +406,8 @@ int main (int argc, char ** argv)
xmit_to_rank,
(void *)&rbuf[mu+4][0],
recv_from_rank,
bytes);
Grid.StencilSendToRecvFromComplete(requests);
bytes,mu+4);
Grid.StencilSendToRecvFromComplete(requests,mu+4);
requests.resize(0);
}
@ -435,6 +435,9 @@ int main (int argc, char ** argv)
}
}
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
std::cout<<GridLogMessage << "= All done; Bye Bye"<<std::endl;
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
Grid_finalize();
}