Studium_Angewandte_Informatik_Bachelor/hpc_laboratory_exercises
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

....

Browse Source
This commit is contained in:
WickedJack99
2025-06-29 20:19:22 +02:00
parent 651ef23042
commit 7654cac5a2
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
lab12/exc4/jacobi.cpp
View File

@@ -82,7 +82,7 @@ void Jacobi::exchangeHaloLayersNodeMPIProcFirst(Matrix &phi)
// Communication with upper partner
if (!isLastRank())
{
int upper = rank_ - 1;
int upper = rank_ + 1;
MPI_Isend(&phi(n - 2, 0), sendSize, MPI_DOUBLE, upper, tag, MPI_COMM_WORLD,
&req.emplace_back());
MPI_Irecv(&phi(n - 1, 0), sendSize, MPI_DOUBLE, upper, tag, MPI_COMM_WORLD,
@@ -159,7 +159,7 @@ void Jacobi::exchangeHaloLayersNodeMPIProcSecond(Matrix &phi)
// Communication with lower partner
if (!isFirstRank())
{
int lower = rank_ + 1;
int lower = rank_ - 1;
MPI_Isend(&phi(1, 0), sendSize, MPI_DOUBLE, lower, tag, MPI_COMM_WORLD,
&req.emplace_back());
MPI_Irecv(&phi(0, 0), sendSize, MPI_DOUBLE, lower, tag, MPI_COMM_WORLD,