ForkMaster/netgen
1
0
Fork 0
mirror of https://github.com/NGSolve/netgen.git synced 2024-12-26 05:50:32 +05:00
Code Issues Packages Projects Releases Wiki Activity

BC-and Material-names are now working with MPI.

Browse Source
This commit is contained in:
Lukas Kogler 2017-06-08 17:50:37 +02:00
parent 6524c0c170
commit 7e21f0cd9c
1 changed files with 85 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

85
libsrc/meshing/parallelmesh.cpp
View File

@ -527,6 +527,55 @@ namespace netgen
MPI_Waitall (sendrequests.Size(), &sendrequests[0], MPI_STATUS_IGNORE);
PrintMessage ( 3, "Sending domain+bc - names");
sendrequests.SetSize(6*(ntasks-1));
/** Send bc-names **/
int nbcs = bcnames.Size();
Array<int> bcname_sizes(nbcs);
int tot_bcsize = 0;
for(int k=0;k<nbcs;k++) {
bcname_sizes[k] = bcnames[k]->size();
tot_bcsize += bcname_sizes[k];
}
char compiled_bcnames[tot_bcsize];
tot_bcsize = 0;
for(int k=0;k<nbcs;k++)
for(int j=0;j<bcname_sizes[k];j++)
compiled_bcnames[tot_bcsize++] = (*bcnames[k])[j];
for(int k=1;k<ntasks;k++) {
sendrequests[6*(k-1)] = MyMPI_ISend(FlatArray<int>(1, &nbcs), k, MPI_TAG_MESH+6);
sendrequests[6*(k-1)+1] = MyMPI_ISend(bcname_sizes, k, MPI_TAG_MESH+6);
(void) MPI_Isend(compiled_bcnames, tot_bcsize, MPI_CHAR, k, MPI_TAG_MESH+6, MPI_COMM_WORLD, &sendrequests[6*(k-1)+2]);
}
/** Send mat-names **/
int nmats = materials.Size();
Array<int> mat_sizes(nmats);
int tot_matsize = 0;
for(int k=0;k<nmats;k++) {
mat_sizes[k] = materials[k]->size();
tot_matsize += mat_sizes[k];
}
char compiled_mats[tot_matsize];
tot_matsize = 0;
for(int k=0;k<nmats;k++)
for(int j=0;j<mat_sizes[k];j++)
compiled_mats[tot_matsize++] = (*materials[k])[j];
for(int k=1;k<ntasks;k++) {
sendrequests[6*(k-1)+3] = MyMPI_ISend(FlatArray<int>(1, &nmats), k, MPI_TAG_MESH+6);
sendrequests[6*(k-1)+4] = MyMPI_ISend(mat_sizes, k, MPI_TAG_MESH+6);
(void) MPI_Isend(compiled_mats, tot_matsize, MPI_CHAR, k, MPI_TAG_MESH+6, MPI_COMM_WORLD, &sendrequests[6*(k-1)+5]);
}
/* now wait ... **/
PrintMessage( 3, "now wait for domain+bc - names");
MPI_Waitall (sendrequests.Size(), &sendrequests[0], MPI_STATUS_IGNORE);
PrintMessage( 3, "send mesh complete");
MPI_Barrier(MPI_COMM_WORLD);
}
@ -699,6 +748,42 @@ namespace netgen
}
}
/** Recv bc-names **/
int nbcs;
MyMPI_Recv(nbcs, 0, MPI_TAG_MESH+6);
Array<int> bcs(nbcs);
MyMPI_Recv(bcs, 0, MPI_TAG_MESH+6);
int size_bc = 0;
for(int k=0;k<nbcs;k++)
size_bc += bcs[k];
char compiled_bcnames[size_bc];
MPI_Recv(compiled_bcnames, size_bc, MPI_CHAR, 0, MPI_TAG_MESH+6, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
SetNBCNames(nbcs);
int cnt = 0;
for(int k=0;k<nbcs;k++) {
SetBCName(k, string(&compiled_bcnames[cnt], bcs[k]));
cnt += bcs[k];
}
/** Recv mat-names **/
int nmats;
MyMPI_Recv(nmats, 0, MPI_TAG_MESH+6);
Array<int> matsz(nmats);
MyMPI_Recv(matsz, 0, MPI_TAG_MESH+6);
int size_mats = 0;
for(int k=0;k<nmats;k++)
size_mats += matsz[k];
char compiled_mats[size_mats];
MPI_Recv(compiled_mats, size_mats, MPI_CHAR, 0, MPI_TAG_MESH+6, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
cnt = 0;
materials.SetSize(nmats);
for(int k=0;k<nmats;k++) {
// setmaterial is 1-based ...
SetMaterial(k+1, string(&compiled_mats[cnt], matsz[k]));
cnt += matsz[k];
}
MPI_Barrier(MPI_COMM_WORLD);
int timerloc = NgProfiler::CreateTimer ("Update local mesh");