Studium_Angewandte_Informatik_Bachelor/hpc_laboratory_exercises
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use .data on send vector

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This commit is contained in:
kai
2025-06-01 12:40:46 +02:00
parent e100a8b39a
commit 73b83cb9ef
1 changed files with 4 additions and 4 deletions
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8
lab10/jacobi/jacobi_mpi.cpp
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@@ -53,7 +53,7 @@ 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);
MPI_Isend(&send_vec_low, numCols, MPI_DOUBLE, neighborLower, 0,
MPI_Isend(send_vec_low.data(), numCols, MPI_DOUBLE, neighborLower, 0,
MPI_COMM_WORLD, &send_lower);
MPI_Request requestLower;
@@ -79,7 +79,7 @@ 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);
MPI_Isend(&send_vec_up, numCols, MPI_DOUBLE, neighborUpper, 0,
MPI_Isend(send_vec_up.data(), numCols, MPI_DOUBLE, neighborUpper, 0,
MPI_COMM_WORLD, &send_upper);
MPI_Request request_upper;
@@ -106,12 +106,12 @@ Jacobi::Result JacobiMPI::run(const Matrix &init, double epsilon,
MPI_Request send_lower;
std::vector<double> send_vec_up = phi[t0].get_row(rank * numRows);
MPI_Isend(&send_vec_up, numCols, MPI_DOUBLE, neighborUpper, 0,
MPI_Isend(send_vec_up.data()), numCols, MPI_DOUBLE, neighborUpper, 0,
MPI_COMM_WORLD, &send_upper);
std::vector<double> send_vec_low =
phi[t0].get_row(rank * numRows + numRows);
MPI_Isend(&send_vec_low, numCols, MPI_DOUBLE, neighborLower, 0,
MPI_Isend(send_vec_low.data(), numCols, MPI_DOUBLE, neighborLower, 0,
MPI_COMM_WORLD, &send_lower);
MPI_Request request_upper;