Studium_Angewandte_Informatik_Bachelor/hpc_laboratory_exercises
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fix

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This commit is contained in:
kai
2025-06-01 13:22:22 +02:00
parent b93a0996f2
commit a29b522b69
1 changed files with 4 additions and 5 deletions
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9
lab10/jacobi/jacobi_mpi.cpp
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@@ -52,7 +52,7 @@ Jacobi::Result JacobiMPI::run(const Matrix &init, double epsilon,
if (rank == 0) {
MPI_Request send_lower;
std::vector<double> send_vec_low = phi[t0].get_row(numRows - 1);
std::vector<double> send_vec_low = phi[t0].get_row(indexRowGlobalEnd);
MPI_Isend(send_vec_low.data(), numCols, MPI_DOUBLE, neighborLower,
indexRowGlobalEnd, MPI_COMM_WORLD, &send_lower);
@@ -78,7 +78,7 @@ Jacobi::Result JacobiMPI::run(const Matrix &init, double epsilon,
else if (rank == (numProc - 1)) {
MPI_Request send_upper;
std::vector<double> send_vec_up = phi[t0].get_row(rank * numRows);
std::vector<double> send_vec_up = phi[t0].get_row(indexRowGlobalStart);
MPI_Isend(send_vec_up.data(), numCols, MPI_DOUBLE, neighborUpper,
indexRowGlobalStart, MPI_COMM_WORLD, &send_upper);
@@ -105,12 +105,11 @@ Jacobi::Result JacobiMPI::run(const Matrix &init, double epsilon,
MPI_Request send_upper;
MPI_Request send_lower;
std::vector<double> send_vec_up = phi[t0].get_row(rank * numRows);
std::vector<double> send_vec_up = phi[t0].get_row(indexRowGlobalStart);
MPI_Isend(send_vec_up.data(), numCols, MPI_DOUBLE, neighborUpper,
indexRowGlobalStart, MPI_COMM_WORLD, &send_upper);
std::vector<double> send_vec_low =
phi[t0].get_row(rank * numRows + numRows);
std::vector<double> send_vec_low = phi[t0].get_row(indexRowGlobalEnd);
MPI_Isend(send_vec_low.data(), numCols, MPI_DOUBLE, neighborLower,
indexRowGlobalEnd, MPI_COMM_WORLD, &send_lower);