gather result matrix

2025-05-31 15:32:01 +02:00
parent 8ffae5b02b
commit 4581a62126
1 changed files with 5 additions and 0 deletions
--- a/lab10/jacobi/jacobi_mpi.cpp
+++ b/lab10/jacobi/jacobi_mpi.cpp
@@ -160,5 +160,10 @@ Jacobi::Result JacobiMPI::run(const Matrix &init, double epsilon,
    std::swap(t0, t1);
  }

+  Matrix result = Matrix::zeros(numProc * numRows, numCols);
+
+  MPI_Gather(&phi[t0], numRows * numCols, MPI_DOUBLE, result.data(),
+             numRows * numCols, MPI_DOUBLE, 0, MPI_COMM_WORLD);
+
  return Jacobi::Result{phi[t0], dist, nIter};
 }